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Artykuły w czasopismach na temat "AC/DC Security; Stability"
Zhang, Qiufang, Zheng Shi, Ying Wang, Jinghan He, Yin Xu i Meng Li. "Security Assessment and Coordinated Emergency Control Strategy for Power Systems with Multi-Infeed HVDCs". Energies 13, nr 12 (19.06.2020): 3174. http://dx.doi.org/10.3390/en13123174.
Pełny tekst źródłaAn, Wenjing, Yuanchao Yang i Geyi Wu. "Research on optimal power flow of AC/DC hybrid system for civil more electric aircraft". Journal of Physics: Conference Series 2741, nr 1 (1.04.2024): 012017. http://dx.doi.org/10.1088/1742-6596/2741/1/012017.
Pełny tekst źródłaWang, Bao Hua, i Zhong Ke Shi. "Dynamic Adaptive Sliding Mode DC Power Modulation Controller in Parallel AC/DC Transmission System". Advanced Materials Research 433-440 (styczeń 2012): 6783–88. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.6783.
Pełny tekst źródłaPiao, Longjian, Laurens de Vries, Mathijs de Weerdt i Neil Yorke-Smith. "Electricity Markets for DC Distribution Systems: Design Options". Energies 12, nr 14 (10.07.2019): 2640. http://dx.doi.org/10.3390/en12142640.
Pełny tekst źródłaZhang, Ningyu, Shengjun Wu, Haiyun An i Xinyao Zhu. "Security-Constraint Unit Commitment for AC/DC Transmission Systems with Voltage Stability Constraint". Journal of Electrical Engineering & Technology 15, nr 6 (7.09.2020): 2459–69. http://dx.doi.org/10.1007/s42835-020-00521-7.
Pełny tekst źródłaZhang, Ningyu, Qian Zhou i Haoming Hu. "Minimum Frequency and Voltage Stability Constrained Unit Commitment for AC/DC Transmission Systems". Applied Sciences 9, nr 16 (19.08.2019): 3412. http://dx.doi.org/10.3390/app9163412.
Pełny tekst źródłaWeijie, Zheng, Xu Dechao, Chen Yong, Zhang Xing i Mu Qing. "Multi Step Transient Hybrid Simulation Framework Design and Practical Engineering Application for AC / DC Power Grid". E3S Web of Conferences 256 (2021): 01010. http://dx.doi.org/10.1051/e3sconf/202125601010.
Pełny tekst źródłaDhumal, S. D., i Dr P. V. Paratwar. "Estimating the Stability of an AC-DC Hybrid Micro Grid with Multilayer Power Flow While Using Interconnected Converter". International Journal for Research in Applied Science and Engineering Technology 11, nr 6 (30.06.2023): 1615–22. http://dx.doi.org/10.22214/ijraset.2023.52662.
Pełny tekst źródłaYan, Wei, Chong Ding, Zhouyang Ren i Wei-Jen Lee. "A Continuation Power Flow Model of Multi-Area AC/DC Interconnected Bulk Systems Incorporating Voltage Source Converter-Based Multi-Terminal DC Networks and Its Decoupling Algorithm". Energies 12, nr 4 (22.02.2019): 733. http://dx.doi.org/10.3390/en12040733.
Pełny tekst źródłaWang, Yanwen, Lingjie Wu i Shaoyang Chen. "Study on the Mode and Characteristics of SSOs in Hybrid AC–DC Transmission Systems via Multitype Power Supply". Sustainability 15, nr 8 (17.04.2023): 6763. http://dx.doi.org/10.3390/su15086763.
Pełny tekst źródłaRozprawy doktorskie na temat "AC/DC Security; Stability"
Bakhos, Gianni. "Gestion de la sécurité du réseau électrique AC & DC : évaluation et amélioration". Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALT014.
Pełny tekst źródłaToday, the integration of renewable energies poses problems of congestion and uncertainty on the electricity network, given the intermittency and unpredictability of this type of energy. What's more, for reasons of profitability and efficiency, the power generated from renewables is transmitted in the form of High Voltage Direct Current (HVDC). A new concept has therefore emerged, that of merging HVDC interconnections into an existing meshed network, which will bring greater flexibility to the operation of the overall system. The result is a hybrid electricity transmission system with significant mutual interactions between the existing AC system and the integrated DC system. While the stability problems of the AC network have now been identified, those of the hybrid system still need to be studied, since the integration of rapidly controllable power converters could modify the behaviour of the entire system. As a result, this thesis project seeks to establish an innovative study encompassing the entire AC/DC hybrid system. This will focus on a security assessment that takes into account operational constraints and the ability of the system to reach a new equilibrium. In addition, this thesis will address the stabilisation challenges of the overall hybrid system. To this end, the assignments will consist of a preliminary study of the state of the art: what is the physical nature of the instability problems of the AC system? What types and ranges of disturbances should be considered for stability assessment? Finally, what modelling and control of the HVDC system? All of this will enable the development of an inclusive security assessment tool that takes into account different system control methods. An analysis will also be carried out to understand the influence of the parameters and control methods adopted. This will help us to implement a systematic means of control to improve network security and optimise power distribution across a Multi-Terminal DC network
Salehi, Pour Mehr Vahid. "Development and Verification of Control and Protection Strategies in Hybrid AC/DC Power Systems for Smart Grid Applications". FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/804.
Pełny tekst źródłaEriksson, Robert. "Security-centered Coordinated Control in AC/DC Transmission Systems". Licentiate thesis, Stockholm : Royal Institute of Technology, 2008. http://kth.diva-portal.org/smash/record.jsf?searchId=4&pid=diva2:101.
Pełny tekst źródłaGonzalez-Torres, Juan Carlos. "Transient stability of high voltage AC-DC electric transmission systems". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS041.
Pełny tekst źródłaThe new policy frameworks adopted by national authorities has encouraged the large scale-integration of Renewable Energy Systems (RES) into bulk power systems. The large-scale integration of RES will have consequences on the electricity transmission system as it is conceived today, since the transmission of bulk power over long distances could lead the existing transmission systems to work close to their limits, thus decreasing their dynamic security margins. Therefore more complex transmissions systems are needed.Under this scenario, HVDC transmission systems raise as the most attractive solution for the reinforcement and improvement of existing AC networks, not only using point-to-point configurations, but also in a Multi-Terminal configuration. The introduction of HVDC transmission systems will eventually result in a hybrid high voltage AC/DC power system, which requires to be analyzed as a unique system in order to understand the interactions between the AC network and the DC grid.This thesis addresses the transient stability analysis of hybrid AC/DC electric transmission systems. More in particular, two questions sought to be investigated: What is the impact of a DC contingency on AC transient stability? How can we take advantage of the of DC transmission systems as control inputs in order to enhance AC transient stability?In the first part of this work, the mathematical models of the hybrid AC/DC grid are described as well as the necessary tools for the analysis of the system taking into account its nonlinear nature. Then, a thorough analysis of transient stability of the power system in the particular case of a DC fault and the execution of the corresponding protection strategies is done. As a complement, stability indicators and tools for sizing future MTDC grids in order to respect the constraints of existing protection strategies are proposed.The second part of the thesis addresses the control proposals for the modulation of power references of the HVDC transmission systems with the purpose of transient stability enhancement of the surrounding AC system. Firstly, we focus our study in the nonlinear control of point-to-point HVDC links in hybrid corridors. Fast power compensation, injection of damping power and injection of synchronizing power are identified as the mechanisms through which HVDC systems can improve stability margins.Finally, a control strategy for transient stability enhancement via active power injections of an MTDC grid is proposed. Using communication between the stations, the proposed decentralized control injects damping and synchronizing power between each pair of converters using only measurements at the converters level. The proposed implementation allows to fully use the available headroom of the converters by dealing with power limits in a decentralized way
Obradovic, Danilo. "Coordinated Frequency Control Between Interconnected AC/DC Systems". Licentiate thesis, KTH, Elkraftteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280156.
Pełny tekst źródłaQC 20200907
multiDC - Advanced Control and Optimization Methods for AC and HVDC Grids
Wang, Hualei. "The protection of transmission networks containing AC and DC circuits". Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655718.
Pełny tekst źródłaMartínez, Sanz Inmaculada. "Control of AC/DC systems for improved transient stability and frequency support provision". Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/25956.
Pełny tekst źródłaFernandopulle, Nilkamal Alden Robert T. H. Findlay Raymond D. Tang Chi-keung. "Improved dynamic security assessment for AC/DC power systems using transient energy functions". *McMaster only, 2005.
Znajdź pełny tekst źródłaSarker, Partha Sarathi. "DYNAMIC MODELING, STABILITY ANALYSIS AND CONTROL OF AC/DC INTERCONNECTED MICROGRID USING DQ-TRANSFORMATION". Master's thesis, Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/518146.
Pełny tekst źródłaM.S.E.E.
In recent years, there have been significant changes in power systems due to the integration of renewables, distributed generation, switched power loads, and energy storage systems, etc. Locally these AC/DC microgrids include both DC generation (such as solar PV) and AC generation (such as wind generation), various DC and AC loads, converters and inverters, and energy storage systems, such as storage batteries and supercapacitors. DC systems are often characterized as low inertia systems whereas AC generation and systems are usually high inertia and high time constant systems. As such, various components of the microgrid will have different temporal characteristics in case of disturbances, such as short circuit, load switchings, etc. which may lead to instability of the microgrid. This research develops the first principle model for coupling the AC and the DC subsystem of an integrated AC/DC microgrid utilizing the dq-framework. The developed model is highly nonlinear and captures the dynamic interaction between the AC and DC subsystems of the microgrid. Lyapunov stability is used to evaluate the stability of the complete system. Simulation results show that the AC and DC subsystems are tightly dynamically coupled so that any disturbance in one subsystem induces transients in the other subsystem. Induced transients due to pulse loads on the AC and DC subsystems clearly show that generator damper winding alone may not be enough to mitigate transients in the microgrid. Addition of prime mover and excitation system controllers for the generator improves the transients primarily on the AC subsystem. Thus, a battery storage with a charge/discharge controller was also added to the DC subsystem. Simulations of the AC/DC microgrid with all three controllers validate the smooth operation of the system for all types of disturbances. The proposed method can be extended in modeling microgrid with multiple generators and various types of loads.
Temple University--Theses
Yu, Chang. "An investigation of subsynchronous oscillation of AC/DC power systems modeling and analysis /". Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37151885.
Pełny tekst źródłaKsiążki na temat "AC/DC Security; Stability"
Meegahapola, Lasantha, Siqi Bu i Mingchen Gu. Hybrid AC/DC Power Grids: Stability and Control Aspects. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06384-8.
Pełny tekst źródłaRio, Javier Arturo Del. Analysis of the electric arc stability in AC and DC arc furnaces by using a basis transformed state space approach. Ottawa: National Library of Canada, 1990.
Znajdź pełny tekst źródłaHofheinz, Wolfgang. Fault current monitoring in electrical installations: Foundations, applications and methods of measuring residual current in AC and DC systems with residual current monitors (RCMs) according to IEC 62020 and other international standards. Berlin: VDE Verlag GMBH, 2004.
Znajdź pełny tekst źródłaMeegahapola, Lasantha, Mingchen Gu i Siqi Bu. Hybrid AC/DC Power Grids: Stability and Control Aspects. Springer International Publishing AG, 2022.
Znajdź pełny tekst źródłaCzęści książek na temat "AC/DC Security; Stability"
Ma, Qinfeng, Xiaotong Xu, Mingshun Liu, Feng Wu, Guosong Wang, Xiancheng Ren i Yong Zhang. "An Online Pre-decision Method for Security and Stability of Frequency and Voltage Emergency Regulation in AC/DC Power System". W Proceedings of 2020 International Top-Level Forum on Engineering Science and Technology Development Strategy and The 5th PURPLE MOUNTAIN FORUM (PMF2020), 374–87. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9746-6_30.
Pełny tekst źródłaBraitor, Andrei-Constantin. "Stability Analysis of Parallel-Operated Bidirectional AC/DC and DC/DC Converters". W Advanced Hierarchical Control and Stability Analysis of DC Microgrids, 91–122. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95415-4_6.
Pełny tekst źródłaWang, Gaolin, Nannan Zhao, Guoqiang Zhang i Dianguo Xu. "Impedance Model Based Stability Control". W Reduced DC-link Capacitance AC Motor Drives, 85–101. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8566-1_4.
Pełny tekst źródłaMeegahapola, Lasantha, Siqi Bu i Mingchen Gu. "Rotor Angle Stability of Hybrid AC/DC Power Grids". W Power Systems, 89–129. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06384-8_4.
Pełny tekst źródłaKarpaga Priya, R., S. Kavitha, M. Malathi, P. Sinthia i K. Suresh Kumar. "Single-Phase Bi-Directional AC/DC Converters for Fast DC Bus Voltage Controller". W Emerging Trends in Expert Applications and Security, 33–44. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1946-8_4.
Pełny tekst źródłaMeegahapola, Lasantha, Siqi Bu i Mingchen Gu. "Frequency Stability and Control of Hybrid AC/DC Power Grids". W Power Systems, 161–88. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06384-8_6.
Pełny tekst źródłaLi, Yong, Mingmin Zhang i Yijia Cao. "Voltage Regulation Strategy of DC Distribution Network Based on Distributed Energy Storage in AC/DC Microgrid". W Stability Analysis, Flexible Control and Optimal Operation of Microgrid, 41–63. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0753-3_3.
Pełny tekst źródłaLi, Yong, Mingmin Zhang i Yijia Cao. "Inertial Support Control of AC/DC Microgrid Based on Distributed Generations". W Stability Analysis, Flexible Control and Optimal Operation of Microgrid, 117–40. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0753-3_6.
Pełny tekst źródłaMeegahapola, Lasantha, Siqi Bu i Mingchen Gu. "Voltage Stability and Control Aspects of Hybrid AC/DC Power Grids". W Power Systems, 131–59. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06384-8_5.
Pełny tekst źródłaDinavahi, Venkata, i Ning Lin. "Parallel-in-Time EMT and Transient Stability Simulation of AC-DC Grids". W Parallel Dynamic and Transient Simulation of Large-Scale Power Systems, 313–57. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86782-9_7.
Pełny tekst źródłaStreszczenia konferencji na temat "AC/DC Security; Stability"
Cui, Yong, Nan Feng, Yuyao Feng, Yinghui Yu i Weihong Wang. "Evaluation of security and stability risk of AC/DC grid under extreme contingencies". W 2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2016. http://dx.doi.org/10.1109/appeec.2016.7779701.
Pełny tekst źródłaHui, C., X. Sixuan, H. Xingning, Z. Wenjia i Q. Wanchun. "Study on the evaluation index strategy for the security and stability of receiving power grids integrated with multi-terminal flexible direct-current transmission systems". W 18th International Conference on AC and DC Power Transmission (ACDC 2022). Institution of Engineering and Technology, 2022. http://dx.doi.org/10.1049/icp.2022.1273.
Pełny tekst źródłaMinglan Lin, Anurag K. Srivastava i Noel N. Schulz. "Voltage stability assessment of AC/DC systems". W IEEE PES T&D 2010. IEEE, 2010. http://dx.doi.org/10.1109/tdc.2010.5484329.
Pełny tekst źródłaEriksson, Robert. "Security analysis of interconnected AC/DC systems". W 2015 Australasian Universities Power Engineering Conference (AUPEC). IEEE, 2015. http://dx.doi.org/10.1109/aupec.2015.7324794.
Pełny tekst źródłaFolly, K. A., i J. K. Mukusuka. "Voltage Stability of AC-DC Interconnections As Affected by AC Line Length". W 2007 IEEE Power Tech. IEEE, 2007. http://dx.doi.org/10.1109/pct.2007.4538313.
Pełny tekst źródłaPáez, J. D., K. Shinoda, D. A. Gómez Acero i F. Morel. "Increasing DC system stability thanks to energy control in MMC based DC-DC converters". W 19th International Conference on AC and DC Power Transmission (ACDC 2023). Institution of Engineering and Technology, 2023. http://dx.doi.org/10.1049/icp.2023.1330.
Pełny tekst źródłaGao, Jing, Ming-Li Zhang, Yi-He Wang, Wen-Ying Shang, Kun Song, Zhen-Tao Han, Lu Qin i Xiaofei Ruan. "Frequency Stability Analysis and Control of AC/DC System". W 2019 16th International Computer Conference on Wavelet Active Media Technology and Information Processing (ICCWAMTIP). IEEE, 2019. http://dx.doi.org/10.1109/iccwamtip47768.2019.9067566.
Pełny tekst źródłaShen, L., J. V. Milanović, W. Wang i M. Barnes. "Integrated AC/DC model for power system stability studies". W 11th IET International Conference on AC and DC Power Transmission. Institution of Engineering and Technology, 2015. http://dx.doi.org/10.1049/cp.2015.0097.
Pełny tekst źródłaCzumbil, Levente, Denisa Stet, Andrei Ceclan, Laura Darabant, Mihaela Cretu i Dan Micu. "Numerical Stability Studies for AC and DC Electrical Circuits". W 2018 53rd International Universities Power Engineering Conference (UPEC). IEEE, 2018. http://dx.doi.org/10.1109/upec.2018.8541993.
Pełny tekst źródłaAbedrabbo, M., M. Wang, P. Tielens, F. Z. Dejene, W. Leterme, J. Beerten i D. Van Hertem. "Impact of DC grid contingencies on AC system stability". W 13th IET International Conference on AC and DC Power Transmission (ACDC 2017). Institution of Engineering and Technology, 2017. http://dx.doi.org/10.1049/cp.2017.0025.
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