Relevant bibliographies by topics / Device to grid

Academic literature on the topic 'Device to grid'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Device to grid"

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Patino, Diego Alejandro, and Andres Eduardo Nieto Vallejo. "Scale Prototype Ring Main Unit for the Measurement and Control of Nodes in a Smart Grid." Revista Politécnica 14, no. 26 (June 2018): 113–24. http://dx.doi.org/10.33571/rpolitec.v14n26a10.

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Smart grids are playing a key role in modern electric power grids, improving load control, assuring safer operations and collecting valuable information of the electrical conditions of the grid. In a smart grid, a RTU (Remote Terminal Unit) is a device that is able to measure the electric variables of the grid and sends all the information to a MTU (Master Terminal Unit), which is responsible of controlling the operations of the grid. RMU (Ring Main Unit) devices are used in electric power grids to protect loads and to disconnect them in case of failure to prevent damage. This article presents the design of a special RMU capable of measuring voltage, current and frequency, detecting electric faults, and making automatic self-healing in order to manage the flow of energy in the smart grid to guarantee energy supply to the critical loads (hospitals). The RMU devices were installed on a scaled smart grid in order to show its operation capabilities.
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Lim, Jang Kwon, Dimosthenis Peftitsis, Diane Perle Sadik, Mietek Bakowski, and Hans Peter Nee. "Evaluation of Buried Grid JBS Diodes." Materials Science Forum 778-780 (February 2014): 804–7. http://dx.doi.org/10.4028/www.scientific.net/msf.778-780.804.

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The 4H-SiC Schottky barrier diodes for high temperature operation over 200 °C have been developed using buried grids formed by implantation. Compared to a conventional JBS-type SBD with surface grid (SG), JBS-type SBD with buried grid (BG) has significantly reduced leakage current at reverse bias due to a better field shielding of the Schottky contact. By introducing the BG technology, the 1.7 kV diodes with an anode area 0.0024 cm2(1 A) and 0.024 cm2(10 A) were successfully fabricated, encapsulated in TO220 packages, and electrically evaluated. Two types of buried grid arrangement with different grid spacing dimensions were investigated. The measured I-V characteristics were compared with simulation. The best fit was obtained with an active area of approximately 60 % and 70 % of the anode area in large and small devices, respectively. The measured values of the device capacitances were 1000 pF in large devices and 100 pF in small devices at zero bias. The capacitance values are proportional to the device area. The recovery behavior of big devices was measured in a double pulse tester and simulated. The recovery charge, Qc, was 18 nC and 24 nC in simulation and measurement, respectively. The fabricated BG JBS-type SBDs have a smaller maximum reverse recovery current compared to the commercial devices. No influence of the different grid spacing on the recovery charge was observed.
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Zuo, Lijian, Shuhua Zhang, Minmin Shi, Hanying Li, and Hongzheng Chen. "Design of charge transporting grids for efficient ITO-free flexible up-scaled organic photovoltaics." Materials Chemistry Frontiers 1, no. 2 (2017): 304–9. http://dx.doi.org/10.1039/c6qm00043f.

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Kisielewicz, Tomasz, Stanislaw Stanek, and Mariusz Zytniewski. "A Multi-Agent Adaptive Architecture for Smart-Grid-Intrusion Detection and Prevention." Energies 15, no. 13 (June 28, 2022): 4726. http://dx.doi.org/10.3390/en15134726.

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The present paper deals with selected aspects of energy prosumers’ security needs. The analysis reported aim to illustrate the concept of the implementation of intrusion-detection systems (IDS)/intrusion-prevention systems (IPS), as supporting agent systems for smart grids. The contribution proposes the architecture of an agent system aimed at collecting, processing, monitoring, and possibly reacting to changes in the smart grid. Furthermore, an algorithm is proposed to support the construction of a smart-grid-operating profile, based on a set of parameters describing the devices. Its application is presented in the example of data collected from the network, indicating the process of building a device-operation profile and a possible mechanism for detecting its changes. The proposed algorithm for building the operating profile of devices in the smart grid, based on the mechanism of continuous learning by the system, allows for detecting network malfunctions not only in terms of individual events but also regarding limits of the scope of system alerts, by determining the typical behavior of devices in the smart grid. The paper gives recommendations to a software-agent system development, which is dedicated to detecting and preventing anomalies in smart grids.
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Alfakeeh, Ahmed S., Sarmadullah Khan, and Ali Hilal Al-Bayatti. "A Multi-User, Single-Authentication Protocol for Smart Grid Architectures." Sensors 20, no. 6 (March 12, 2020): 1581. http://dx.doi.org/10.3390/s20061581.

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In a smart grid system, the utility server collects data from various smart grid devices. These data play an important role in the energy distribution and balancing between the energy providers and energy consumers. However, these data are prone to tampering attacks by an attacker, while traversing from the smart grid devices to the utility servers, which may result in energy disruption or imbalance. Thus, an authentication is mandatory to efficiently authenticate the devices and the utility servers and avoid tampering attacks. To this end, a group authentication algorithm is proposed for preserving demand–response security in a smart grid. The proposed mechanism also provides a fine-grained access control feature where the utility server can only access a limited number of smart grid devices. The initial authentication between the utility server and smart grid device in a group involves a single public key operation, while the subsequent authentications with the same device or other devices in the same group do not need a public key operation. This reduces the overall computation and communication overheads and takes less time to successfully establish a secret session key, which is used to exchange sensitive information over an unsecured wireless channel. The resilience of the proposed algorithm is tested against various attacks using formal and informal security analysis.
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Testa, Bridget Mintz. "Building the New Electric Grid." Mechanical Engineering 131, no. 12 (December 1, 2009): 24–28. http://dx.doi.org/10.1115/1.2009-dec-1.

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This article focuses on benefits of the electric meters capable of sharing real-time usage data with the company and customers alike. Creating the smart grid on a national scale will be perhaps the biggest change to the electrical system since the rural electrification effort of the 1930s. Companies are trying to get a more reliable energy system through, for example, outage management systems, rebalancing loads, and getting help with rebalancing through consumers controlling their usage. To provide real-time or near-real time information, which is needed for consumers to monitor and control their usage, the electric meters must communicate with each other frequently. Sensing and monitoring devices at customer premises that let customers control their electric use are explicit elements of smart grids The future smart grid, Smart Grid 2.0, is next-generation, interactive, self-healing, distributed everywhere, and has an innate capability to reach every device.
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Bukreev, Aleksey V. "Device for Remote and Mobile Monitoring of Electrical Grids of Agricultural Facilities." Elektrotekhnologii i elektrooborudovanie v APK 48, no. 4 (December 2021): 23–28. http://dx.doi.org/10.22314/2658-4859-2021-68-4-23-28.

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The main methods that are used in the process of energy inspection of agricultural facilities include instrumental inspection of both the electrical grid of the enterprise as a whole and individual technological processes, electrical devices and electrical equipment. The instrumental survey allows you to get diagrams of the electrical load, record the consumption of electrical energy and investigate the main parameters of the electric grid on the enterprise at its different points. It is desirable to carry out such measurements without disconnecting the electrical devices, as this can lead to losses for the enterprise. The available instruments and complexes do not allow remote monitoring of the operating parameters of the electrical grid, are not adapted for long-term measurements in the conditions of agricultural facilities. Permanently installed metering devices, monitoring devices do not provide the necessary mobility during the energy audit. It is required to develop devices for remote and mobile measurement of operating parameters electrical grid of agricultural facilities. (Research purpose) The research purpose is in developing a device for remote and mobile measurement of operating parameters of electric grid of agricultural facilities. (Materials and methods) The article presents the analysis of literature sources, the analysis of existing means for measuring electrical energy parameters. (Results and discussion) The existing methods and technical means that allow for the study of the parameters of the operating modes of electric networks are not adapted to long-term measurements in the conditions of agricultural facilities, since they have low protection from the environment and a high cost. The article presents the developed device schematics and an experimental sample. Its tests were conducted verifying the accuracy of measurements and the correctness of the specified functions. (Conclusions) A device has been developed for remote and mobile measurement of operating parameters of electrical grid of agricultural facilities. Based on the test results, the operability of the developed device was confirmed.
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Liem, L. E., Daniel W. Smith, and S. J. Stanley. "Particle reduction study of flocculation mixing by means of grids." Canadian Journal of Civil Engineering 26, no. 3 (June 1, 1999): 251–61. http://dx.doi.org/10.1139/l98-053.

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A flocculation study was completed by means of a vertically oscillating grid mixing device. Five types of single grids with different solidity ratios were vertically oscillated inside a 2 L jar to promote floc aggregation. Kaolin was used as the simulated turbid particles and alum was applied as the chemical coagulant. The method of measurement was completed based on the particle reduction represented by the settled water turbidity. It was found that low turbidity readings could be achieved at a wide range of average volume velocity gradient [Formula: see text], especially in the case of high solidity ratio types of grids. This indicates that the grid mixing had a stable performance and was not greatly affected by mixing variations in the vessel. The floc aggregation and erosion rate coefficient analysis showed that the grid mixing produced particle contacts with low break-up rate. A general relationship among [Formula: see text], flocculation performance parameters, and grid physical characteristics was found, indicating that the flocculation performance was easily controlled. This study has shown the potential of grids as a mixing device to produce an excellent mixing environment for floc aggregation.Key words: flocculation, grid, solidity ratio, kaolin, alum, [Formula: see text], turbidity.
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Kim, Mi-na, Jun-sin Yi, Chung-Yuen Won, and Jung-Hyo Lee. "Methods to Improve Dynamic System Response of Power Compensators Using Supercapacitors in Low-Voltage Ride-Through (LVRT) Conditions." Electronics 11, no. 7 (April 5, 2022): 1144. http://dx.doi.org/10.3390/electronics11071144.

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In this paper, a power compensator using supercapacitors in parallel to protect grid-connected devices connected to the distributed power supply in the case of a low-voltage ride-through (LVRT) situation in designed, and a grid-connected device control method with improved responsiveness is proposed. In the LVRT situation, the distributed generation power may boost the DC_link voltage, increasing the risk of destroying grid-connected devices. To prevent this, the power compensator designed in this study absorbs active power in a fault situation and stores it in the supercapacitor to suppress the DC_link voltage rise and efficiently use the power. In addition, we propose methods to improve the response of the grid reactive power through the reactive power compensation of the power compensator in LVRT situation. To this end, the power angle (θPW) was extracted through the formula, and the reactive power command, to be compensated by the power compensator, and the reactive power command, compensated by the grid-connected devices, were calculated according to the active power value. In this way, the grid power controlled by the power compensation device and the grid-connected devices was controlled by the active/reactive power of the same power angle and analyzed mathematically. Active power control and static grid support were performed in the normal state where the reduction rate of the normal value of the grid voltage was around 10%. However, when the grid voltage dropped by 10% to 100%, the reactive power control was appropriately performed with dynamic grid support by increasing the voltage from 10% to 20% or more. We conducted a simulation of the new and renewable energy grid-connected devices using the OPAL-RT-based Hardware-in-the Loop Simulation (HILS) system to control the proposed active/reactive power.
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Cheng, Nan, Ning Lu, Ning Zhang, Tingting Yang, Xuemin Shen, and Jon W. Mark. "Vehicle-assisted device-to-device data delivery for smart grid." IEEE Transactions on Vehicular Technology 65, no. 4 (April 2016): 2325–40. http://dx.doi.org/10.1109/tvt.2015.2415512.

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Dissertations / Theses on the topic "Device to grid"

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Shimotakahara, Kevin. "Device to Device Communications for Smart Grid." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40656.

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This thesis identifies and addresses two barriers to the adoption of Long Term Evolution (LTE) Device-to-Device (D2D) communication enabled smart grid applications in out of core network coverage regions. The first barrier is the lack of accessible simulation software for engineers to develop and test the feasibility of their D2D LTE enabled smart grid application designs. The second barrier is the lack of a distributed resource allocation algorithm for LTE D2D communications that has been tailored to the needs of smart grid applications. A solution was proposed to the first barrier in the form of a simulator constructed in Matlab/Simulink used to simulate power systems and the underlying communication system, i.e., D2D communication protocol stack of Long Term Evolution (LTE). The simulator is built using Matlab's LTE System Toolbox, SimEvents, and Simscape Power Systems in addition to an in-house developed interface software to facilitate D2D communications in smart grid applications. To test the simulator, a simple fault location, isolation, and restoration (FLISR) application was implemented using the simulator to show that the LTE message timing is consistent with the relay signaling in the power system. A solution was proposed to the second barrier in the form of a multi-agent Q-learning based resource allocation algorithm that allows Long Term Evolution (LTE) enabled device-to-device (D2D) communication agents to generate orthogonal transmission schedules outside of network coverage. This algorithm reduces packet drop rates (PDR) in distributed D2D communication networks to meet the quality of service requirements of microgrid communications. The PDR and latency performance of the proposed algorithm was compared to the existing random self-allocation mechanism introduced under the Third Generation Partnership Project's LTE Release 12. The proposed algorithm outperformed the LTE algorithm for all tested scenarios, demonstrating 20-40% absolute reductions in PDR and 10-20 ms reductions in latency for all microgrid applications.
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Kanten, Bethany. "Power Monitoring Device for Off-Grid Solar." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:14398556.

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Off-grid solar power systems are being used in rural, developing regions of the world to provide electricity to communities that previously didn’t have access. These systems are unable to communicate data about power generation and consumption to the organizations that install them. This information can be critical for the organization to ensure they are providing quality electricity, maintain the health of the components in their system, and evaluate the impact they are having in the community. I designed and built a device to monitor power at both the generation and AC or DC consumption sites. Once daily it sends the data to a website via text message where is it displayed to the installer. The device also stores the data locally on a microSD card. The final device abides by the key specifications set by the prior art of low cost and low power consumption. The device also addresses key challenges of off-grid monitoring including data transmission via text message, battery monitoring, reliability/ durability, and versatility with load site monitoring.
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Bürgler, Josef Franz. "Discretization and grid adaptation in semiconductor device modeling /." [S.l.] : [s.n.], 1990. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9146.

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Conti, Paolo. "Grid generation for three-dimensional semiconductor device simulation /." Zürich, 1991. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9383.

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Minh, Hyunsik Eugene. "Communication options for protection and control device in Smart Grid applications." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82401.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; in conjunction with the Leaders for Global Operations Program at MIT, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 74-75).
Increasing use of electricity, interest in renewable energy sources, and need for a more reliable power grid system are some of the many drivers for the concept of the Smart Grid technology. In order to achieve these goals, one of the critical elements is communication between systems or between the system and human beings. With the decreasing cost of various communication technologies, especially wireless devices and utilities, researchers are increasingly interested in implementing complex two-way communication infrastructures to enhance the quality of the grid. The protection and control relay at the distribution level is one of the key component in enhancing the efficiency, security and reliability of power grid. At present, it may be premature to apply wireless devices to power electronics and to distribution automation, especially for protection and control relays in the distribution level. While fiber technology is still very attractive for protection and control applications in general, wireless technology can bring improvements in user experience applications in the future. The ABB medium voltage group needs to overcome challenges that arise from conservative industry structure, increasing complexity and cost of the product, and needs for higher reliability and security. However, with collaborative efforts among different product groups, the medium voltage group will successfully develop next generation distribution feeder relay.
by Hyunsik Eugene Minh.
S.M.
M.B.A.
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Kalalas, Charalampos. "Cellular networks for smart grid communication." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/620760.

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The next-generation electric power system, known as smart grid, relies on a robust and reliable underlying communication infrastructure to improve the efficiency of electricity distribution. Cellular networks, e.g., LTE/LTE-A systems, appear as a promising technology to facilitate the smart grid evolution. Their inherent performance characteristics and well-established ecosystem could potentially unlock unprecedented use cases, enabling real-time and autonomous distribution grid operations. However, cellular technology was not originally intended for smart grid communication, associated with highly-reliable message exchange and massive device connectivity requirements. The fundamental differences between smart grid and human-type communication challenge the classical design of cellular networks and introduce important research questions that have not been sufficiently addressed so far. Motivated by these challenges, this doctoral thesis investigates novel radio access network (RAN) design principles and performance analysis for the seamless integration of smart grid traffic in future cellular networks. Specifically, we focus on addressing the fundamental RAN problems of network scalability in massive smart grid deployments and radio resource management for smart grid and human-type traffic. The main objective of the thesis lies on the design, analysis and performance evaluation of RAN mechanisms that would render cellular networks the key enabler for emerging smart grid applications. The first part of the thesis addresses the radio access limitations in LTE-based networks for reliable and scalable smart grid communication. We first identify the congestion problem in LTE random access that arises in large-scale smart grid deployments. To overcome this, a novel random access mechanism is proposed that can efficiently support real-time distribution automation services with negligible impact on the background traffic. Motivated by the stringent reliability requirements of various smart grid operations, we then develop an analytical model of the LTE random access procedure that allows us to assess the performance of event-based monitoring traffic under various load conditions and network configurations. We further extend our analysis to include the relation between the cell size and the availability of orthogonal random access resources and we identify an additional challenge for reliable smart grid connectivity. To this end, we devise an interference- and load-aware cell planning mechanism that enhances reliability in substation automation services. Finally, we couple the problem of state estimation in wide-area monitoring systems with the reliability challenges in information acquisition. Using our developed analytical framework, we quantify the impact of imperfect communication reliability in the state estimation accuracy and we provide useful insights for the design of reliability-aware state estimators. The second part of the thesis builds on the previous one and focuses on the RAN problem of resource scheduling and sharing for smart grid and human-type traffic. We introduce a novel scheduler that achieves low latency for distribution automation traffic while resource allocation is performed in a way that keeps the degradation of cellular users at a minimum level. In addition, we investigate the benefits of Device-to-Device (D2D) transmission mode for event-based message exchange in substation automation scenarios. We design a joint mode selection and resource allocation mechanism which results in higher data rates with respect to the conventional transmission mode via the base station. An orthogonal resource partition scheme between cellular and D2D links is further proposed to prevent the underutilization of the scarce cellular spectrum. The research findings of this thesis aim to deliver novel solutions to important RAN performance issues that arise when cellular networks support smart grid communication.
Las redes celulares, p.e., los sistemas LTE/LTE-A, aparecen como una tecnología prometedora para facilitar la evolución de la próxima generación del sistema eléctrico de potencia, conocido como smart grid (SG). Sin embargo, la tecnología celular no fue pensada originalmente para las comunicaciones en la SG, asociadas con el intercambio fiable de mensajes y con requisitos de conectividad de un número masivo de dispositivos. Las diferencias fundamentales entre las comunicaciones en la SG y la comunicación de tipo humano desafían el diseño clásico de las redes celulares e introducen importantes cuestiones de investigación que hasta ahora no se han abordado suficientemente. Motivada por estos retos, esta tesis doctoral investiga los principios de diseño y analiza el rendimiento de una nueva red de acceso radio (RAN) que permita una integración perfecta del tráfico de la SG en las redes celulares futuras. Nos centramos en los problemas fundamentales de escalabilidad de la RAN en despliegues de SG masivos, y en la gestión de los recursos radio para la integración del tráfico de la SG con el tráfico de tipo humano. El objetivo principal de la tesis consiste en el diseño, el análisis y la evaluación del rendimiento de los mecanismos de las RAN que convertirán a las redes celulares en el elemento clave para las aplicaciones emergentes de las SGs. La primera parte de la tesis aborda las limitaciones del acceso radio en redes LTE para la comunicación fiable y escalable en SGs. En primer lugar, identificamos el problema de congestión en el acceso aleatorio de LTE que aparece en los despliegues de SGs a gran escala. Para superar este problema, se propone un nuevo mecanismo de acceso aleatorio que permite soportar de forma eficiente los servicios de automatización de la distribución eléctrica en tiempo real, con un impacto insignificante en el tráfico de fondo. Motivados por los estrictos requisitos de fiabilidad de las diversas operaciones en la SG, desarrollamos un modelo analítico del procedimiento de acceso aleatorio de LTE que nos permite evaluar el rendimiento del tráfico de monitorización de la red eléctrica basado en eventos bajo diversas condiciones de carga y configuraciones de red. Además, ampliamos nuestro análisis para incluir la relación entre el tamaño de celda y la disponibilidad de recursos de acceso aleatorio ortogonales, e identificamos un reto adicional para la conectividad fiable en la SG. Con este fin, diseñamos un mecanismo de planificación celular que tiene en cuenta las interferencias y la carga de la red, y que mejora la fiabilidad en los servicios de automatización de las subestaciones eléctricas. Finalmente, combinamos el problema de la estimación de estado en sistemas de monitorización de redes eléctricas de área amplia con los retos de fiabilidad en la adquisición de la información. Utilizando el modelo analítico desarrollado, cuantificamos el impacto de la baja fiabilidad en las comunicaciones sobre la precisión de la estimación de estado. La segunda parte de la tesis se centra en el problema de scheduling y compartición de recursos en la RAN para el tráfico de SG y el tráfico de tipo humano. Presentamos un nuevo scheduler que proporciona baja latencia para el tráfico de automatización de la distribución eléctrica, mientras que la asignación de recursos se realiza de un modo que mantiene la degradación de los usuarios celulares en un nivel mínimo. Además, investigamos los beneficios del modo de transmisión Device-to-Device (D2D) en el intercambio de mensajes basados en eventos en escenarios de automatización de subestaciones eléctricas. Diseñamos un mecanismo conjunto de asignación de recursos y selección de modo que da como resultado tasas de datos más elevadas con respecto al modo de transmisión convencional a través de la estación base. Finalmente, se propone un esquema de partición de recursos ortogonales entre enlaces celulares y D2
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Schmithüsen, Bernhard. "Grid adaptation for the stationary two-dimensional drift-diffusion model in semiconductor device simulation /." Zürich : [s.n.], 2002. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14449.

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Xu, Chunchun. "High Accuracy Real-time GPS Synchronized Frequency Measurement Device for Wide-area Power Grid Monitoring." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/27007.

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Frequency dynamics is one of the most important signals of a power system, and it is an indicator of imbalance between generation and load in the system. The Internet-based real-time GPS-synchronized wide-area Frequency Monitoring Network (FNET) was proposed to provide imperative frequency dynamics information for a variety of system-wide monitoring, analysis and control applications. The implementation of FNET has for the first time made the synchronized observation of the entire U.S. power network possible with very little cost. The FNET is comprised of many Frequency Disturbance Recorders (FDR) geographically dispersed throughout the U.S. and an Information Management System (IMS), currently located at Virginia Tech. The FDR works as a sensor, which performs local measurements and transmits calculations of frequency, voltage magnitude and voltage angle to the remote servers via the Internet. Compared with its commercial counterpart Phasor Measurement Unit (PMU), FDR provides less expensive version for networked high-resolution real-time synchronized. The improved single phase algorithm in the FDRs made it possible to measure at 110V level which is much more challenging than PMUs due to the noise involved at this level. This research work presents the challenges and issues of both software and hardware design for the novel measurement device FDR, which is one of the devices with the highest dynamic precision for power system frequency measurement. The DFT-based Phasor Angle Analysis algorithm has been improved to make sure the high-resolution measuring FDRs are installed at residential voltage outlets, instead of substation high-voltage inputs. An embedded 12-channel timing GPS receiver has been integrated to provide an accurate timing synchronization signal, UTC time stamp, and unit location. This research work also addresses the harmonics, voltage swing and other noise components' impacts on the measurement results, and the optimized design of filters and a coherent sampling scheme to reduce or eliminate those impacts. The verification test results show that the frequency measurement accuracy of the FDR is within +/-0.0005Hz, and the time synchronization error is within +/-500ns with suitable GPS antenna installation. The preliminary research results show the measurement accuracy and real-time performance of the FDR are satisfactory for a variety of FNET applications, such as disturbance identification and event location triangulation.
Ph. D.
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9

Milette, Greg P. "Analogical matching using device-centric and environment-centric representations of function." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050406-145255/.

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Thesis (M.S.)--Worcester Polytechnic Institute.
Keywords: Analogy, Design, Functional Modeling, Functional Reasoning, Knowledge Representation, Repertory Grid, SME, Structure Mapping Engine, AI in design. Includes bibliographical references (p.106).
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Orebowale, Patience B. "Investigating the stability of geosynthetic landfill capping systems." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/7786.

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The use of geosynthetics in landfill construction introduces potential planes of weakness. As a result, there is a requirement to assess the stability along the soil/geosynthetic and geosynthetic/geosynthetic interfaces. Stability is governed by the shear strength along the weakest interface in the system. Repeatability interface shear strength testing of a geomembrane/geotextile interface at low normal stresses suitable for capping systems showed considerable variability of measured geosynthetic interface shear strengths, suggesting that minor factors can have a significant influence on the measured shear strength. This study demonstrates that more than one test per normal stress is necessary if a more accurate and reliable interface shear strength value is to be obtained. Carefully controlled inter-laboratory geosynthetic interface shear strength comparison tests undertaken on large direct shear devices that differ in the kinematic degrees of freedom of the top box, showed the fixed top box design to consistently over estimate the available interface shear strength compared to the vertically movable top box design. Results obtained from measurement of the normal stress on the interface during shear with use of load cells in the lower box of the fixed top box design, raise key questions on the accuracy, reliability and proper interpretation of the interface shear strength data used in landfill design calculations. Tests on the geocomposite/sand interface have shown the interface friction angle to vary with the orientation of the geocomposite's main core, in relation to the direction of shearing. Close attention needs to be paid to the onsite geocomposite placement in confined spaces and capping slope corners, as grid orientation on the slope becomes particularly important when sliding is initiated. Attempts to measure the pore water pressure during staged consolidation and shear along a clay/geomembrane interface in the large direct shear device suggest that this interface is a partial drainage path.
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Books on the topic "Device to grid"

1

Conti, Paolo. Grid generation for three-dimensional semiconductor device simulation. Konstanz: Hartung-Gorre, 1991.

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Bürgler, Josef F. Discretization and grid adaptation in semiconductor device modeling. Konstanz: Hartung-Gorre, 1990.

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Schmithüsen, Bernhard. Grid adaption for the stationary two-dimensional drift diffusion model in semiconductor device simulation. Konstanz: Hartung-Gorre, 2002.

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Hitschfeld, Nancy. Grid generation for three-dimensional non-rectangular semiconductor devices. Konstanz: Hartung-Gorre, 1993.

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1948-, Wu T. K., ed. Frequency selective surface and grid array. New York: Wiley, 1995.

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Howe, Malcolm. Death the grim reaper -: The Pilkington crest. [Manchester]: Greater Manchester Heraldry Society, 2004.

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Popadyuk, Tat'yana, Irina Smirnova, Nataliya Linder, Arkadiy Trachuk, Gayk Nalbandyan, Anastasiya Karikova, Aleksandra Pogosyan, et al. Modern electrical substations. ru: INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1861116.

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The textbook provides general information about the operating modes of electrical systems and substations, methods for calculating short-circuit currents and selecting electrical equipment for substations and power grids, classification of substations is given, designs of manual control transformers, high-voltage and low-voltage substations are considered, issues of their relay protection, requirements of electrical installation rules and technical operation rules for the device and operation of substations. It is intended for students of the training direction 13.03.02 "Electric power and electrical engineering", and can also be useful for students of secondary vocational education, masters and electrical engineers who improve their technical level on the job.
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Tomasz, Szepieniec, Wiatr Kazimierz, and SpringerLink (Online service), eds. Building a National Distributed e-Infrastructure–PL-Grid: Scientific and Technical Achievements. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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Semiconductor Equipment and Materials International., Components, Packaging & Manufacturing Technology Society., and Institute of Electrical and Electronics Engineers., eds. IEEE/CPMT/SEMI 28th International Electronics Manufacturing Technology Symposium: July 16-18, 2003 the Marriott Hotel, San Jose, CA, USA. Piscataway, N.J: IEEE, 2003.

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IEEE/CPMT International Electronics Manufacturing Technology Symposium (24th 1999 Austin, Tex.). Twenty Fourth IEEE/CPMT International Electronics Manufacturing Technology Symposium: Proceedings 1999 IEMT symposium : October 18-19, 1999, Austin, TX, USA. Piscataway, N.J: IEEE, 1999.

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Book chapters on the topic "Device to grid"

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Opu, Md Fazla Rabbi, Emon Biswas, Mansura Habiba, and Cheonshik Kim. "Architecture of a Context Aware Framework for Automated Mobile Device Configuration." In Grid and Pervasive Computing, 299–308. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38027-3_32.

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Zhuge, Hai. "Soft-Device Inheritance in the Knowledge Grid." In Lecture Notes in Computer Science, 62–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11492870_6.

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Bi, Jia, Yanyan Li, Yunpeng Xing, Xiang Li, and Xue Chen. "A Proxy-Based Dynamic Inheritance of Soft-Device." In Grid and Cooperative Computing - GCC 2005, 208–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11590354_30.

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You, Yuanxia, Dan Meng, Gang Xue, and Jie Ma. "Evaluation of the Device Driver Availability in Dawning4000A." In Advances in Grid and Pervasive Computing, 308–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11745693_31.

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Conradi, P., and D. Schröder. "Concepts for a Dimension Independent Application of Multigrid Algorithms to Semiconductor Device Simulation." In Robust Multi-Grid Methods, 48–57. Wiesbaden: Vieweg+Teubner Verlag, 1989. http://dx.doi.org/10.1007/978-3-322-86200-6_4.

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Garretón, G., L. Villablanca, N. Strecker, and W. Fichtner. "Unified Grid Generation and Adaptation for Device Simulation." In Simulation of Semiconductor Devices and Processes, 468–71. Vienna: Springer Vienna, 1995. http://dx.doi.org/10.1007/978-3-7091-6619-2_113.

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Li, Min, Xiaobo Wu, Menglian Zhao, Hui Wang, and Xiaolang Yan. "Heterogeneous Grid Computing for Energy Constrained Mobile Device." In Embedded and Ubiquitous Computing, 356–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30121-9_34.

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Arantsson, Bardur, and Brian Vinter. "The Grid Block Device: Performance in LAN and WAN Environments." In Advances in Grid Computing - EGC 2005, 702–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11508380_71.

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Yeom, Jeong-Cheol, Qing Zhou, In-A. Song, Young-Seok Lee, and In-ho Ra. "Authentication Mechanism for IoT Device in Micro Grid Environments." In Communications in Computer and Information Science, 281–91. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6473-0_25.

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Berruti, L., F. Davoli, S. Vignola, and S. Zappatore. "Performance Analysis of a Grid-Based Instrumentation Device Farm." In Remote Instrumentation and Virtual Laboratories, 23–32. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-5597-5_3.

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Conference papers on the topic "Device to grid"

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Fey, Simon, Pascal Benoit, Gregor Rohbogner, Andreas H. Christ, and Christof Wittwer. "Device-to-device communication for Smart Grid devices." In 2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe). IEEE, 2012. http://dx.doi.org/10.1109/isgteurope.2012.6465751.

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Famili, Azadeh, Chirath Pathiravasam, Yingjie Lao, and G. Kumar Venayagamoorthy. "Device-Specific Signature Generation Technique for Smart Grid Device." In 2020 Clemson University Power Systems Conference (PSC). IEEE, 2020. http://dx.doi.org/10.1109/psc50246.2020.9131260.

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Akbarfam, Asma Jodeiri, and Khashayar Khodadad Motarjemi. "Proposing a new protocol for using device-to-device communications in narrowband IoT-based systems." In 2021 11th Smart Grid Conference (SGC). IEEE, 2021. http://dx.doi.org/10.1109/sgc54087.2021.9664195.

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Jurič, Ivana, Dragoljub Novaković, Nemanja Kašiković, and Sandra Dedijer. "Influence of digitization input device on calculation of print (non)uniformity value of prints using ISO 13660 method." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p11.

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This paper examines the influence of the digitization input device on the print nonuniformity value when using the ISO 13660 method. This method belongs to the group of techniques called Image Analysis Method (IAM), so the basis for calculating the quality attributes is a digitized print. We selected six different devices: three flatbed scanners and three mobile phones. All settings were constant, such as the scan resolution (600 spi) and light source (D50). To have controlled prints, they were simulated using the MATLAB code - Macro Uniformity Toolbox and printed using the Epson Stylus PRO 7800 InkJet machine. We simulated random print nonuniformity know as small-scaled (graininess) and large-scaled (mottle). The calculated values differ drastically by changing the digitization device, while the values within the same group of devices are strongly correlated. The obtained results indicate the need to expand the standard and define more precise settings for input devices.
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West, Andrew, and Garcia Z. Santitos. "Cloud-Based Grid Automation Device Management." In 2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America). IEEE, 2021. http://dx.doi.org/10.1109/isgtlatinamerica52371.2021.9543003.

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West, Andrew, and Garcia Z. Santitos. "Cloud-Based Grid Automation Device Management." In 2021 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America). IEEE, 2021. http://dx.doi.org/10.1109/isgtlatinamerica52371.2021.9543003.

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Asuhaimi, Fauzun A., Joao P. B. Nadas, and Muhammad A. Imran. "Delay-optimal mode selection in device-to-device communications for smart grid." In 2017 IEEE International Conference on Smart Grid Communications (SmartGridComm). IEEE, 2017. http://dx.doi.org/10.1109/smartgridcomm.2017.8340710.

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Geng, Baolei, and Rongquan Wang. "Performance Analysis for Grid Plate Wave Absorbing Device." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54221.

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With the fluid assumed incompressible and inviscid, and the flow irrotational, the fluid motion can be described by a potential ϕ which satisfies the Laplace equation within the whole domain Ω. The seabed and wall are impermeable and grid plate is transversely permeable only. Then the relationship between horizontal velocity and pressure difference could be deduced without considering the vertical component of the fluid in the grid plate. Reflection coefficient, transmission coefficient and energy-loss coefficient could be calculated when regular waves travel across one grid plate or multi-grid plates, by matching velocity potential and boundary conditions at each grid plate. For the given case, if 0.8 < Gr < 4.6 and Gi < 1.6, the wave absorptivity is more than 90% for four grid plates wave absorbing device.
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Oliveira, Joao Paolo C. M., Antonio Wendell De O. Rodrigues, Rejane Cavalcante Sa, Paulo Araujo, and Andre Luiz C. de Araujo. "Smart Middleware Device for Smart Grid integration." In 2015 IEEE 24th International Symposium on Industrial Electronics (ISIE). IEEE, 2015. http://dx.doi.org/10.1109/isie.2015.7281567.

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Ledinger, Stephan, David Reihs, Daniel Stahleder, and Felix Lehfuss. "Test Device for Electric Vehicle Grid Integration." In 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). IEEE, 2018. http://dx.doi.org/10.1109/eeeic.2018.8493902.

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Reports on the topic "Device to grid"

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Lu, Ning, Donald J. Hammerstrom, and Stasha N. Patrick. Grid FriendlyTM Device Model Development and Simulation. Office of Scientific and Technical Information (OSTI), December 2009. http://dx.doi.org/10.2172/974988.

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Winter, L. SIM Grid Star Observations: Astrometry With a New High Dynamic Range Imaging Device. Fort Belvoir, VA: Defense Technical Information Center, March 2000. http://dx.doi.org/10.21236/ada435793.

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Kuznetsov, Victor, Vladislav Litvinenko, Egor Bykov, and Vadim Lukin. A program for determining the area of the object entering the IR sensor grid, as well as determining the dynamic characteristics. Science and Innovation Center Publishing House, April 2021. http://dx.doi.org/10.12731/bykov.0415.15042021.

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Currently, to evaluate the dynamic characteristics of objects, quite a large number of devices are used in the form of chronographs, which consist of various optical, thermal and laser sensors. Among the problems of these devices, the following can be distinguished: the lack of recording of the received data; the inaccessibility of taking into account the trajectory of the object flying in the sensor area, as well as taking into consideration the trajectory of the object during the approach to the device frame. The signal received from the infrared sensors is recorded in a separate document in txt format, in the form of a table. When you turn to the document, data is read from the current position of the input data stream in the specified list by an argument in accordance with the given condition. As a result of reading the data, it forms an array that includes N number of columns. The array is constructed in a such way that the first column includes time values, and columns 2...N- the value of voltage . The algorithm uses cycles that perform the function of deleting array rows where there is a fact of exceeding the threshold value in more than two columns, as well as rows where the threshold level was not exceeded. The modified array is converted into two new arrays, each of which includes data from different sensor frames. An array with the coordinates of the centers of the sensor operation zones was created to apply the Pythagorean theorem in three-dimensional space, which is necessary for calculating the exact distance between the zones. The time is determined by the difference in the response of the first and second sensor frames. Knowing the path and time, we are able to calculate the exact speed of the object. For visualization, the oscillograms of each sensor channel were displayed, and a chronograph model was created. The chronograph model highlights in purple the area where the threshold has been exceeded.
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Grubbs, Daniel. gridPULSE: Catalog of National Laboratory Testing Resources for Grid Devices. Office of Scientific and Technical Information (OSTI), March 2018. http://dx.doi.org/10.2172/1528814.

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Hupp, William, Danish Saleem, Jordan Peterson, and Kenneth Boyce. Cybersecurity Certification Recommendations for Interconnected Grid Edge Devices and Inverter Based Resources. Office of Scientific and Technical Information (OSTI), November 2021. http://dx.doi.org/10.2172/1832209.

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Frolov, Vladimir, Scott Backhaust, and Michael Chertkov. Efficient Algorithm for Locating and Sizing Series Compensation Devices in Large Transmission Grids: Model Implementation. Office of Scientific and Technical Information (OSTI), February 2015. http://dx.doi.org/10.2172/1170269.

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Frolov, Vladimir, Scott Backhaust, and Michael Chertkov. Efficient Algorithm for Locating and Sizing Series Compensation Devices in Large Transmission Grids: Solutions and Applications. Office of Scientific and Technical Information (OSTI), February 2015. http://dx.doi.org/10.2172/1170268.

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Frolov, Vladimir, Scott N. Backhaus, and Michael Chertkov. Efficient Algorithm for Locating and Sizing Series Compensation Devices in Large Transmission Grids: Model Implementation (PART 1). Office of Scientific and Technical Information (OSTI), January 2014. http://dx.doi.org/10.2172/1114412.

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Frolov, Vladimir, Scott N. Backhaus, and Michael Chertkov. Efficient Algorithm for Locating and Sizing Series Compensation Devices in Large Transmission Grids: Solutions and Applications (PART II). Office of Scientific and Technical Information (OSTI), January 2014. http://dx.doi.org/10.2172/1114413.

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Villamil, Julie, Caique Lara, Anthony Abrahao, Aparna Arvelli, Guilherme Daldegan, Sharif Sarker, and Dwayne McDaniel. Development of a Pipe Crawler Inspection Tool for Fossil Energy Power Plants. Florida International University, October 2021. http://dx.doi.org/10.25148/mmeurs.009772.

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Fossil fuel power plants are complex systems containing multiple components that create extreme environments for the purpose of extracting usable energy. Failures in the system can lead to increased down time for the plant, reduction of power and significant cost for repairs. In the past, inspections and maintenance of the plant's superheater tubes has been predominantly manual, laborious, and extremely time consuming. This is due to the pipe's small diameter size (between 1.3 and 7.6 cm) and the coiled structure of the tubing. In addition, the tubes are often stacked close to each other, limiting access for external inspection. Detection of pipe degradation, such as increased levels of corrosion, creep, and the formation of micro-cracks is possible using standard non-destructive evaluation (NDE) methods, including ultrasonic, radiography and electromagnetic methods. However, when the access to the sub-systems is limited or the configuration of the structure is prohibitive, alternative methods are needed for deploying the NDE tools. This research effort considers a novel robotic inspection system for the evaluation of small pipes found in typical boiler superheaters that have limited access. The pipe crawler system is an internal inspection device that can potentially navigate through the entire pipe length using linear actuators to grip the walls and inch along the pipe. The modular nature of the system allows it to traverse through straight sections and multiple 90-degree and 180-degree bends. The crawler is also capable of providing visual inspections, ultrasonic thickness measurements, and generating inner diameter surface maps using LiDAR (light detection and ranging). Ultimately, the development of this robotic inspection tool can provide information regarding the structural integrity of key pipeline components in fossil fuel power plants that are not easily accessible
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