Thematische Bibliographien / Voltage drop compensator / Zeitschriftenartikel
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Zeitschriftenartikel zum Thema „Voltage drop compensator“

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Veröffentlicht am 25. Mai 2024

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1

Karoui, Ridha, Abdelkarim Aouiti, Maha Zoghlami, and Faouzi Bacha. "Impact of static synchronous compensator on the stability of a wind farm: Case study of wind farm in Tunisia." Wind Engineering 40, no. 6 (2016): 555–68. http://dx.doi.org/10.1177/0309524x16671193.

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The static synchronous compensator is one of the FACTS (Flexible Alternating Current Transmission System) device capable of maintaining the stability of wind turbines during a sudden default. Among these faults, the voltage drops at the connection bus wind turbines. For this fault case, the static synchronous compensator intervenes by injection of the reactive power to compensate the voltage drop. In this article, as application case, we study the wind farm of Bizerte (north of Tunisia). This farm is composed of fixed speed aero-generators using squirrel cage induction generators. Our study be
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da Silva, Rui Jovita G. C., A. C. Zambroni de Souza, Rafael C. Leme, and Dabit Sonoda. "Decentralized secondary voltage control using voltage drop compensator among power plants." International Journal of Electrical Power & Energy Systems 47 (May 2013): 61–68. http://dx.doi.org/10.1016/j.ijepes.2012.10.009.

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3

Dandotia, Ashish, Mukesh Kumar Gupta, Malay Kumar Banerjee, et al. "Optimal Placement and Size of SVC with Cost-Effective Function Using Genetic Algorithm for Voltage Profile Improvement in Renewable Integrated Power Systems." Energies 16, no. 6 (2023): 2637. http://dx.doi.org/10.3390/en16062637.

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Given the concern for maintaining voltage stability in power systems integrated with renewable power systems due to a mismatch in generation and demand, there remains a need to invoke flexible alternating current transmission system (FACTS) devices in the distribution network. The present paper deals with identifying the locations of placement of a static var compensator in an experimental IEEE 14-bus system; the voltage drop in different buses in an IEEE 14-bus system is calculated by the standard formula. The total voltage drop in the network (TVDN) is also calculated as a reference. The ran
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4

Kallon, Mohamed Amidu, George Nyauma Nyakoe, and Christopher Maina Muriithi. "Development of DSTATCOM Optimal Sizing and Location Technique Based on IA-GA for Power Loss Reduction and Voltage Profile Enhancement in an RDN." International Journal of Electrical and Electronics Research 9, no. 4 (2021): 96–106. http://dx.doi.org/10.37391/ijeer.090402.

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The efficiency of electrical distribution systems is being more affected by the increase in voltage drops and power losses. These issues of voltage drop and power loss can be significantly minimized by the incorporation of a Distribution Static Compensator (DSTATCOM) in the distribution network. However, inappropriate positioning and sizing of DSTATCOM can undermine its efficiency. Despite the contributions of many researchers to the optimal placement of DSTATCOM and other compensators in distribution networks, the problems of voltage drop, power losses, and power quality persist, necessitatin
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Maciążek, M., D. Grabowski, and M. Pasko. "Active power filters – optimization of sizing and placement." Bulletin of the Polish Academy of Sciences: Technical Sciences 61, no. 4 (2013): 847–53. http://dx.doi.org/10.2478/bpasts-2013-0091.

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Abstract The significant problem of compensator placement and sizing in electrical networks has been analyzed in the paper. The compensation is usually realized by means of passive or active power filters. The former solution is widely used mainly because of the economical reasons, but the latter one becomes more and more popular as the number of nonlinear loads increases. Regardless of the compensator type the most important goal consists in voltage and current distortion drop below levels imposed by standards. Nevertheless, the desired effects should be achieved with the minimum cost. So far
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Kikusato, Hiroshi, Naoyuki Takahashi, Jun Yoshinaga, et al. "Method for Determining Line Drop Compensator Control Parameters of Low-Voltage Regulator Using Random Forest." Applied Mechanics and Materials 799-800 (October 2015): 1299–305. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.1299.

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Compensation of a voltage within the appropriate range becomes difficult when a large number of photovoltaic (PV) systems are installed. As a solution to this problem, the installation of a low-voltage regulator (LVR) has been studied. In this paper, we propose a method for instantly and accurately determining the line drop compensator (LDC) method parameters as a part of a voltage management scheme, which consists of prediction, operation, and control. In the proposed method, the solution candidates of the proper LDC parameters are narrowed by using a random forest that learns the relationshi
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Noman, M. A., and Fahad A. AL-Zahrani. "SELF GENERATED DC LINK – VOLTAGE SOURCE INVERTER AS VOLTAGE DROP COMPENSATOR FOR POWER TRANSMISSION LINES." JES. Journal of Engineering Sciences 36, no. 3 (2008): 711–20. http://dx.doi.org/10.21608/jesaun.2008.116161.

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Alatshan, Mohammed Salheen, Ibrahim Alhamrouni, Tole Sutikno, and Awang Jusoh. "Improvement of the performance of STATCOM in terms of voltage profile using ANN controller." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 4 (2020): 1966. http://dx.doi.org/10.11591/ijpeds.v11.i4.pp1966-1978.

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The electronic equipments are extremely sensitive to variation in electric supply. The increasing of a nonlinear system with several interconnected unpredicted and non-linear loads are causing some problems to the power system. The major problem facing the power system is power quality, controlling of reactive power and voltage drop. A static synchronous compensator (STATCOM) is an important device commonly used for compensation purposes, it can provide reactive support to a bus to compensate voltage level. In this paper, the Artificial Neural Network (ANN) controlled STATCOM has been designed
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Mukhopadhyay, Bineeta, Rajib Kumar Mandal, and Girish Kumar Choudhary. "Voltage Compensation In Wind Power System Using STATCOM Controlled By Soft Computing Techniques." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 2 (2017): 667. http://dx.doi.org/10.11591/ijece.v7i2.pp667-680.

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<span lang="EN-US">When severe voltage sags occur in weak power systems associated with grid-connected wind farms employing doubly fed induction generators, voltage instability occurs which may lead to forced disconnection of wind turbine. Shunt flexible AC transmission system devices like static synchronous compensator (STATCOM) may be harnessed to provide voltage support by dynamic injection of reactive power. In this work, the STATCOM provided voltage compensation at the point of common coupling in five test cases, namely, simultaneous occurrence of step change (drop) in wind speed an
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Kawahara, Keiji, Yoshifumi Mochinaga, Yasuji Hisamizu, Takashi Inoue, and Toshiaki Matsuura. "Compensation of Voltage Drop using Static Var Compensator at Sectioning Post for Shinkansen Power Feeding System." IEEJ Transactions on Industry Applications 119, no. 4 (1999): 523–29. http://dx.doi.org/10.1541/ieejias.119.523.

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11

Benachour, Souheyla, and Omar Bendjeghaba. "Wind Farm Voltage Drop Stabilisation Using SVC Inverter Based on FACTS." Algerian Journal of Renewable Energy and Sustainable Development 2, no. 01 (2020): 9–16. http://dx.doi.org/10.46657/ajresd.2020.2.1.2.

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The study focus on maintain of voltage factor in the near-unity network (1pu) using a Static Variables Compensator (SVC). In order to determine the effectiveness of this device to improve the stability of a power system with distributed genetartion in presence of wind farm based on MADA, the power flow is calculated without the existence of the SVC at first, and then when the SVC is integrated. This operation is performed to make a comparison and evaluate the role of the device in the system. However, in order to improve voltage stability as well as minimize power losses for practical power sy
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Mukha, Andrii M., and Oleh I. Bondarr. "Reactive Power Compensation for Non-Traction Railway Consumers." Problemy Kolejnictwa - Railway Reports 64, no. 188 (2020): 129–35. http://dx.doi.org/10.36137/1884e.

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This paper deals with the problems of power supply efficiency for non-traction railway customers. Unlike public distribution networks, the non-traction power supply network is within the zone of influence of electromagnetic fields and the conductive influence of the distorted traction current. As a result, poor power quality and additional losses are typical for non-traction railway networks. Subsequently, conflicts due to the low quality of electricity may arise between the railway and its customers powered by the distribution networks of the railway. The influence of a reactive power compens
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Simões Louzeiro, Rennivan, Livia Da Silva Oliveira, David Barbosa de Alencar, and Roger Santos Koga. "Study and Simulation of Voltage Profile Recovery on a 200 km Transmission Line Using Shunt Static Var Compensator (SVC)." International Journal for Innovation Education and Research 7, no. 11 (2019): 1038–50. http://dx.doi.org/10.31686/ijier.vol7.iss11.1965.

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This article aims to clarify how Flexible Alternating Current Transmission Systems (FACTS) technology, for static operating devices, conditioned on application to long-distance transmission lines can solve problems related to voltage drop on paths known as “weak zones” of the power transmission system. Some technical aspects of the construction of the SVC Static Reactive Compensator in conjunction with thyristor switching devices such as TCR and TSC are described. The proposed scenario is similar to the Brazilian interconnected system, where much of the generator park is hundreds of miles from
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Bimali, Bibek, Sushil Uprety, and Ram Prasad Pandey. "VAR Compensation on Load Side using Thyristor Switched Capacitor and Thyristor Controlled Reactor." Journal of the Institute of Engineering 16, no. 1 (2021): 111–19. http://dx.doi.org/10.3126/jie.v16i1.36568.

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Generally, AC loads are the inductive loads which are reactive in nature. These loads, thus, demand and draw reactive power from the supply source. If these loads draw large lagging current from the source, this will cause excessive voltage drop in the line, which can even cause the voltage collapsing in the line itself if the drop in the line is excessively high. VAR compensation means efficient management of reactive power locally to improve the performance of AC power systems. In this paper, Static VAR Compensator, using TSC (Thyristor Switched Capacitor) and TCR (Thyristor Controlled React
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15

Ma, Junjie, Xudong Wang, Siyan Zhang, and Hanying Gao. "Distributed Finite-Time Secondary Frequency and Voltage Restoration Control Scheme of an Islanded AC Microgrid." Energies 14, no. 19 (2021): 6266. http://dx.doi.org/10.3390/en14196266.

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To solve the problems of frequency and voltage deviation caused by the droop control while meeting the requirements of rapid response, a distributed finite-time secondary control scheme is presented. Unlike the traditional cooperative controllers, this scheme is fully distributed; each unit only needs to communicate with its immediate neighbors. A control protocol for frequency restoration and active power sharing is proposed to synchronize the frequency of each unit to the reference value, and achieve accurate active power distribution in a finite-time manner as well. The mismatch of the line
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Chervonenko, A. P., and D. A. Kotin. "Voltage Dips Compensator with Energy Storage and Load Soft Switching Function." LETI Transactions on Electrical Engineering & Computer Science 15, no. 10 (2022): 87–96. http://dx.doi.org/10.32603/2071-8985-2022-15-10-87-96.

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This work is devoted to the development of a simulation model of a voltage drop compensation device containing an electric energy storage device. The proposed control algorithm makes it possible to minimize the shock moment and the current surge of the motor when transferring the load in the event of an emergency. The control system considered in the work implements an algorithm for automatic phase matching of the EMF of the motor and the voltage of the inverter, which allows soft switching function transferring the load from one power source to another. In this case, the electric voltage angl
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Kikusato, Hiroshi, Naoyuki Takahashi, Jun Yoshinaga, et al. "Method for Rapidly Determining Line Drop Compensator Parameters of Low-Voltage Regulator using Classifiers." IEEJ Transactions on Power and Energy 135, no. 7 (2015): 446–53. http://dx.doi.org/10.1541/ieejpes.135.446.

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18

Yoon, Kwang-Hoon, Joong-Woo Shin, Tea-Yang Nam, Jae-Chul Kim, and Won-Sik Moon. "Operation Method of On-Load Tap Changer on Main Transformer Considering Reverse Power Flow in Distribution System Connected with High Penetration on Photovoltaic System." Energies 15, no. 17 (2022): 6473. http://dx.doi.org/10.3390/en15176473.

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The increasing use of photovoltaics (PVs) in distribution systems owing to the low-carbon policy has given rise to the need for various technological changes. In particular, the operation of on-load tap changers (OLTCs) has attracted attention. In traditional distribution systems, the OLTC operates via a line-drop compensator (LDC), which focuses on the load to solve the low-voltage problem; however, the problem of over-voltage caused by PVs persists. Currently, a method for operating an OLTC using the measured voltage is being researched; however, solving the voltage problem for several feede
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Sato, Eduardo Kazuhide, and Atsuo Kawamura. "Lateral Current Reduction by Voltage Drop Compensator for Multiple Autonomously Controlled UPS Connected in Parallel." IEEJ Transactions on Industry Applications 125, no. 10 (2005): 934–39. http://dx.doi.org/10.1541/ieejias.125.934.

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20

Shahnia, Farhad. "Operation of the System of Coupled Low-Voltage Feeders during Short-Circuit Faults." Energies 16, no. 16 (2023): 6009. http://dx.doi.org/10.3390/en16166009.

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As a technique to control the voltage drop at network peak periods and voltage rise at middays when a high number of rooftop photovoltaic systems exist in a low-voltage feeder (LVF), two or more neighboring LVFs can be coupled. To add voltage controllability to the coupling point, a distribution static compensator (DSTATCOM) can be installed. An important issue for such a system is its operation under short-circuit conditions in one of the LVFs and relevant protection aspects. This paper investigates the performance of such a system under fault conditions and presents a protection scheme that
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Schinas, Nick. "Vector Analysis and Optimal Control for the Voltage Regulation of a Weak Power System with Wind Energy and Power Electronics." Applied Physics Research 10, no. 6 (2018): 1. http://dx.doi.org/10.5539/apr.v10n6p1.

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This paper deals with the voltage regulation in a weak system which contains large inductive loads and wind turbines using Doubly Fed Induction Generators (FDIGs). The DFIGs demand large amounts of reactive power from the grid and as a result, there is a voltage drop in the system which may be extra deteriorated if large inductive loads and motors are also present in the same line.  The problem of the voltage regulation in these cases is treated with the installation of a Static Var Compensator (SVC) besides the capability of the DFIGs to partially regulate the voltage themselves. In
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Agustini, Ni Putu, I. Made Wartana, and Abraham Lomi. "Improvement of Static Voltage Stability of 16-Bus Bali System by Optimal Placement of SVC." International Journal of Smart Grid and Sustainable Energy Technologies 4, no. 1 (2021): 140–44. http://dx.doi.org/10.36040/ijsgset.v4i1.3902.

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In a power system, the reactive power imbalance is related to the stability of the static voltage because the injection of reactive power that the bus receives from the system determines the bus's capability in the system. Rapid increases in real and reactive power losses occur as the system approaches the voltage drop point or the maximum load point. It is necessary to support local and adequate reactive power to avoid system leading to be voltage collapse. This study analyzes the improvement of the margin of static voltage stability using one type of modern control equipment of shunt flexibl
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Ethmane, I. A., A. K. Mahmoud, M. Maaroufi, and A. Yahfdhou. "Transient stability enhancement of statcom integration in power grid." Indonesian Journal of Electrical Engineering and Computer Science 16, no. 2 (2019): 553. http://dx.doi.org/10.11591/ijeecs.v16.i2.pp553-561.

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T<span>o solve load growth of a hybrid existing electrical system, we at first build generation stations (wind, solar or thermical). And secondly in 2025 year, when the system is so meshed, some buses will be very far from production energy, the transits power will be lower than the transmission capacity, and the voltage drop out margin limit of stability. Therefore it is proposed to install Flexible AC Transmission System (FACTS) devices to enhance the transient power stability and quality in the power system. The power flow analysis of Newton Raphson method is performed on a seven (7)
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Rikan, Behnam S., David Kim, Kyung-Duk Choi, et al. "A Low-Band Multi-Gain LNA Design for Diversity Receive Module with 1.2 dB NF." Sensors 21, no. 24 (2021): 8340. http://dx.doi.org/10.3390/s21248340.

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This paper presents and discusses a Low-Band (LB) Low Noise Amplifier (LNA) design for a diversity receive module where the application is for multi-mode cellular handsets. The LB LNA covers the frequency range between 617 MHz to 960 MHz in 5 different frequency bands and a 5 Pole Single Throw (5PST) switch selects the different frequency bands where two of them are for the main and three for the auxiliary bands. The presented structure covers the gain modes from −12 to 18 dB with 6 dB gain steps where each gain mode has a different current consumption. In order to achieve the Noise Figure (NF
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Kastawan, I. Made Wiwit, Achmad Mudawari, Jakariya, and Yusuf Hanafi. "Power factor correction of three-phase electrical power supply by using of thyristor controlled reactor VAR compensator." E3S Web of Conferences 479 (2024): 01004. http://dx.doi.org/10.1051/e3sconf/202447901004.

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Low power factor (abbreviated as pf), particularly lagging pf, brings a lot of negative effects to electrical power supply system. Lagging pf is caused by inductive load. Inductive load with low pf draws higher current for the same active power demand. Higher current results in larger kVA rating and size of all electrical equipment connected to the electrical power system, larger conductor size used to deliver electrical power to the load, higher loss hence poorer power distribution efficiency and higher voltage drop hence poorer electrical power system voltage regulation. Considering all thes
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Song, Guangyu, Xinghua Liu, Jiaqiang Tian, and Peng Wang. "An Improved Fuzzy Voltage Compensation Control Strategy for Parallel Inverter." International Transactions on Electrical Energy Systems 2022 (February 10, 2022): 1–20. http://dx.doi.org/10.1155/2022/5185028.

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With the rapid development of microgrids, voltage drop has become one of the focuses on the research of microgrid stability and grid-connected operation. In this article, an improved fuzzy voltage compensation control strategy (FVCC) is proposed to solve the bus voltage drop problem. This method takes the influence of feeder impedance into account, and there is no need to accurately measure the feeder impedance value. Since droop control and feeder impedance can lead to voltage drop and bus voltage instability, fuzzy control is applied to compensate bus voltage. Specifically, aiming at the vol
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Sharma, Adeesh, and Himmat Singh. "MATLAB SIMULATION OF D-STATCOM USING SVPWM." International Journal of Engineering Technologies and Management Research 5, no. 5 (2020): 184–95. http://dx.doi.org/10.29121/ijetmr.v5.i5.2018.240.

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In this paper, A Distribution Static Synchronous Compensator (D-STATCOM) is used for improving the power factor, power quality and to control power flow control in the distribution line. It used to give reactive and active power compensation in the distribution line. The power depends on the power factor of the loads connected to the transmission line. In this paper we have used a new DSTATCOM using modified SVPWM technique. The previous DSTATCOM are basically controlled by PWM, or SPWM technique which produce high harmonics distortion but using SVPWM technique distortion reduces to maximum po
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Afzal, Muhammad Moin, Muhammad Adil Khan, Muhammad Arshad Shehzad Hassan, et al. "A Comparative Study of Supercapacitor-Based STATCOM in a Grid-Connected Photovoltaic System for Regulating Power Quality Issues." Sustainability 12, no. 17 (2020): 6781. http://dx.doi.org/10.3390/su12176781.

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Renewable energy resources (RERs) play a vital role in reducing greenhouse gases, as well as balancing the power generation demand in daily life. Due to the high penetration of RERs and non-linear loads into utility power systems, various power quality issues arise, i.e., voltage drop, harmonic distortion, reactive power demand, etc. In order to handle these power quality issues, there is a need for smart flexible alternating current transmission system (FACTS) devices. In this paper, a super capacitor energy storage system (SCESS)-based static synchronous compensator (STATCOM) is designed in
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Geddada, Nagesh, and Mahesh Kumar Mishra. "LCL Filter with Active Damping using PI and SSI Regulators in Synchronous Rotating Reference Frame Current Controller for DSTATCOM." International Journal of Emerging Electric Power Systems 14, no. 4 (2013): 309–26. http://dx.doi.org/10.1515/ijeeps-2013-0057.

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Abstract This article proposes a distribution static compensator (DSTATCOM) with interface LCL (inductor-capacitor-inductor) filter for load compensation in three-phase four-wire distribution system. DSTATCOM, consisting of voltage source inverter (VSI), is connected in parallel to the load and injects currents corresponding to load reactive, harmonic powers. But this injected current consists of unnecessary high-frequency switching ripple generated by VSI. This LCL filter has superior switching ripple attenuation capability compared to L filter. Moreover, this can be achieved with small value
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Lu, Kai-Hung, and Qianlin Rao. "Enhancing the Dynamic Stability of Integrated Offshore Wind Farms and Photovoltaic Farms Using STATCOM with Intelligent Damping Controllers." Sustainability 15, no. 18 (2023): 13962. http://dx.doi.org/10.3390/su151813962.

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To build a large-scale renewable energy integrated system in the power system, power fluctuation mitigation and damping measures must be implemented during grid connection. PID damping controllers and traditional intelligent controllers with pole configuration are usually used for improving damping. Integration of large wind power plants and photovoltaic power plants into the power system faces transient power oscillation and fault ride-through (FRT) capability under fault conditions. Therefore, this paper proposes a static synchronous compensator (STATCOM) damper based on a recurrent Petri fu
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Sakib, Munif Nazmus, Sahar Pirooz Azad, and Mehrdad Kazerani. "Fast DC Fault Current Suppression and Fault Ride-Through in Full-Bridge MMCs via Reverse SM Capacitor Discharge." Energies 15, no. 13 (2022): 4595. http://dx.doi.org/10.3390/en15134595.

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In the event of a DC side fault in modular multilevel converters (MMCs), the fault current contributions are initially made by submodule (SM) capacitor discharge, which occurs before the fault is detected, followed by the AC side contribution to the DC side fault. While the AC side currents can be regulated using fault blocking SMs, the initial discharge of the SM capacitors results in high DC fault currents, which can take several milliseconds to be brought under control. This paper presents a method to actively control the rate of rise of the DC fault current by regulating the discharge of S
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Sultanov, M. M., A. V. Strizhichenko, I. A. Boldyrev, O. I. Zhelyaskova, E. A. Voloshin, and E. I. Rogozinnikov. "On the issue of improving the efficiency of power systems and substantiation of reactive power compensation in electric networks." Safety and Reliability of Power Industry 13, no. 4 (2021): 267–72. http://dx.doi.org/10.24223/1999-5555-2020-13-4-267-272.

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Reactive power in the power system negatively affects the operating mode of the electric network, additionally loading high-voltage lines and transformers, which leads to an increase in power losses, as well as to an increase in voltage drops. The influence of active and reactive power components of voltage in the network nodes is different and is overwhelmingly determined by the ratio of active and reactive components of the resistance elements of the electric system. In high-voltage networks, the reactive component of the resistance significantly exceeds the active component, and therefore t
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Rao, Junfeng, Yibo Huang, Xiuzhi Wang, Longyu Zhuang, Jie Zhuang, and Zhenyu Ji. "Multi-stage voltage droop compensation based on resonant circuit for unipolar solid-state Marx Generators." Review of Scientific Instruments 93, no. 11 (2022): 114704. http://dx.doi.org/10.1063/5.0122198.

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The low-voltage droop of high-voltage pulses is required to provide stable pulsed electric fields in many applications. Increasing the capacitance of energy storage capacitors increases both the size and the cost of the system. In this paper, four compensation stages based on the resonant circuit have been inserted into a 16-stage solid-state Marx generator to compensate for the voltage droop in different conditions. The nearly linear part of the sinusoidal voltage is precisely added to the load during discharging as compensation, and the rectangular pulsed voltage with little droop can be rea
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Martiningsih, Wahyuni, Untung Yudho Prakoso, and Herudin. "Power quality improvement using dynamic voltage restorer in distribution system PT. DSS Power Plant." MATEC Web of Conferences 218 (2018): 01003. http://dx.doi.org/10.1051/matecconf/201821801003.

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In the power plant power system, voltage drops often occur and one of the contributing factors is a short circuit that affects the performance of motor drivers on the mills in the generator. In this research proposed the use of compensation dynamic voltage restorer (DVR) to damped voltage sag. The DVR using a three-phase voltage source inverter (VSI) with voltage loop control (PI). To detect the voltage drop system using park transform and apply it in the voltage regulator as a control system function that detects the voltage amplitude at the sensitive load continuously. The result of simulati
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Li, Shengqing, Xinyun Tang, Jian Zheng, and Chenyang Wang. "Power Sharing Control Strategy of High-Frequency Chain Matrix Converter Parallel System Based on Adaptive Virtual Impedance." Journal of Physics: Conference Series 2136, no. 1 (2021): 012022. http://dx.doi.org/10.1088/1742-6596/2136/1/012022.

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Abstract In the high frequency link matrix converter parallel system, the impedance parameters on each line are unequal so that the output power of each converter is not equal. To solve this problem, the reason why the power cannot be divided equally under the droop control strategy is analyzed, and a power sharing strategy based on adaptive virtual impedance is proposed. This strategy introduces virtual impedance in a voltage-current dual-loop system with droop control, and uses the converter’s power information and output power factor to adaptively adjust the amplitude and phase of the virtu
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Zhang, Hua. "A Voltage Compensation Circuit for Flash Memory." Advanced Materials Research 986-987 (July 2014): 1738–41. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1738.

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In order to get a stable source line voltage, a novel source line voltage compensation circuit has been designed to compensate the IR drop on the source line decoding path. The circuit is verified in 0.18um flash memory technology.
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37

Lee, Kyo-Beum, and Frede Blaabjerg. "Disturbance Observer-Based Simple Nonlinearity Compensation for Matrix Converter Drives." Research Letters in Electronics 2009 (2009): 1–4. http://dx.doi.org/10.1155/2009/215782.

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This paper presents a new method to compensate the nonlinearity for matrix converter drives using disturbance observer. The nonlinearity of matrix converter drives such as commutation delay, turn-on and turn-off time of switching device, and on-state switching device voltage drop is modeled by disturbance observer and compensated. The proposed method does not need any additional hardware and offline experimental measurements. The proposed compensation method is applied for high-performance induction motor drives using a 3 kW matrix converter system without a speed sensor. Simulation and experi
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38

Zimann, Felipe J., Eduardo V. Stangler, Francisco A. S. Neves, Alessandro L. Batschauer, and Marcello Mezaroba. "Coordinated Control of Active and Reactive Power Compensation for Voltage Regulation with Enhanced Disturbance Rejection Using Repetitive Vector-Control." Energies 13, no. 11 (2020): 2812. http://dx.doi.org/10.3390/en13112812.

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Voltage profile is one of many aspects that affect power quality in low-voltage distribution feeders. Weak grids have a typically high line impedance which results in remarkable voltage drops. Distribution grids generally have a high R/X ratio, which makes voltage regulation with reactive power compensation less effective than in high-voltage grids. Moreover, these networks are more susceptible to unbalance and harmonic voltage disturbances. This paper proposes an enhanced coordinated control of active and reactive power injected in a distribution grid for voltage regulation. Voltage drop miti
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39

Feng, Fan, and Jingyang Fang. "Weak Grid-Induced Stability Problems and Solutions of Distributed Static Compensators with Voltage Droop Support." Electronics 11, no. 9 (2022): 1385. http://dx.doi.org/10.3390/electronics11091385.

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Distributed static compensators (DSTATCOMs) are grid-connected power electronic equipment dedicated to compensating reactive power as well as improving voltage regulation in distribution networks. They eclipse conventional compensation approaches, such as capacitor banks, in terms of flexibility and effectiveness. Despite their identified advantages, STATCOMs with voltage droop are subject to weak grid-induced stability problems, as first revealed by this paper. Specifically, the voltage droop controller that couples the amplitude of point of common coupling (PCC) voltages to the reactive curr
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40

Feng, Fan, and Jingyang Fang. "Weak Grid-Induced Stability Problems and Solutions of Distributed Static Compensators with Voltage Droop Support." Electronics 11, no. 9 (2022): 1385. http://dx.doi.org/10.3390/electronics11091385.

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Distributed static compensators (DSTATCOMs) are grid-connected power electronic equipment dedicated to compensating reactive power as well as improving voltage regulation in distribution networks. They eclipse conventional compensation approaches, such as capacitor banks, in terms of flexibility and effectiveness. Despite their identified advantages, STATCOMs with voltage droop are subject to weak grid-induced stability problems, as first revealed by this paper. Specifically, the voltage droop controller that couples the amplitude of point of common coupling (PCC) voltages to the reactive curr
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41

Mungkin, Moranain, Habib Satria, Dina Maizana, Muzamir Isa, Syafii Syafii, and Muhammad Yonggi Puriza. "Analysis of the feasibility of adding a grid-connected hybrid photovoltaic system to reduce electrical load." International Journal of Power Electronics and Drive Systems (IJPEDS) 14, no. 2 (2023): 1160. http://dx.doi.org/10.11591/ijpeds.v14.i2.pp1160-1171.

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The power generation system with hybrid system grid connected (HSGC) technology is an energy-saving technology that is able to compensate for electricity loads in an energy-efficient manner in today's technological advances. Electrical transient analyzer power (ETAP) simulation software is implemented so that the modeling will have an impact on the development of hybrid systems. Testing the reliability of the system is simulated at the load of school buildings, laboratories, mosques, and kindergarten schools. parameters obtained by evaluating the ratio of the voltage drop before and after the
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42

Olmos, Alfredo, Fabricio Ferreira, Fernando Paixão Cortes, Fernando Chavez, and Marcelo Soares Lubaszewski. "A 2-Transistor Sub-1V Low Power Temperature Compensated CMOS Voltage Reference: Design and Application." Journal of Integrated Circuits and Systems 10, no. 2 (2015): 74–80. http://dx.doi.org/10.29292/jics.v10i2.408.

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This paper presents the design and application of a CMOS sub-1V voltage reference using a 2-transistor Self-Cascode MOSFET (SCM) structure able to get low power consumption, temperature compensation, and small area. An efficient design procedure applied to this simple topology relying on NMOS transistors with different threshold voltages allows attaining large immunity against bias current and supply voltage variations. The two transistors can operate in weak, moderate, or strong inversion making the design flexible in terms of area and power consumption. Implemented in a > 0.18mm standard
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Fan, Ching-Lin, Hui-Lung Lai, and Yan-Wei Liu. "An AMOLED AC-Biased Pixel Design Compensating the Threshold Voltage andI-RDrop." International Journal of Photoenergy 2011 (2011): 1–6. http://dx.doi.org/10.1155/2011/543273.

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We propose a novel pixel design and an AC bias driving method for active-matrix organic light-emitting diode (AM-OLED) displays using low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs). The proposed threshold voltage andI-Rdrop compensation circuit, which comprised three transistors and one capacitor, have been verified to supply uniform output current by simulation work using the Automatic Integrated Circuit Modeling Simulation Program with Integrated Circuit Emphasis (AIM-SPICE) simulator. The simulated results demonstrate excellent properties such as low error rate of
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44

Eom, Tae-Ho, Jin-Wook Kang, Jintae Kim, Min-Ho Shin, Jung-Hyo Lee, and Chung-Yuen Won. "Improved Voltage Drop Compensation Method for Hybrid Fuel Cell Battery System." Electronics 7, no. 11 (2018): 331. http://dx.doi.org/10.3390/electronics7110331.

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In this paper, a voltage drop compensation method for hybrid hydrogen fuel cell battery system, with a hydrogen recirculation powering a forklift, is studied. During recirculating hydrogen fuel to recycle hydrogen that has not reacted enough at the system, impurities can be mixed with the hydrogen fuel. This leads to low hydrogen concentration and a drop in the output voltage of the fuel cell system. In excessive voltage drop, the fuel cell system can be shutdown. This paper proposes a voltage drop compensation method using an electrical control algorithm to prevent system shutdown by reducing
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45

Li, Baojuan, Fangbin Shang, Renzheng Wang, Xiaojie Wu, and Di Fan. "Flexible Adaptive Integrated Compensation Strategy for Voltage Sag." Journal of Physics: Conference Series 2661, no. 1 (2023): 012004. http://dx.doi.org/10.1088/1742-6596/2661/1/012004.

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Abstract A dynamic voltage restorer (DVR) is often used for voltage compensation to reduce or eliminate the harm of voltage sag. The existing combined compensation strategy does not consider the specific process of voltage sag, so it cannot adapt to the change according to the drop depth and eliminate the phase abrupt change. In this paper, a flexible, adaptive combination compensation strategy is proposed, which adopts the appropriate compensation strategy according to the actual voltage change process, sets the transition period to avoid phase jump, and adopts the full voltage compensation s
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46

Ren, Biying, Xiangdong Sun, Shasha Chen, and Huan Liu. "A Compensation Control Scheme of Voltage Unbalance Using a Combined Three-Phase Inverter in an Islanded Microgrid." Energies 11, no. 9 (2018): 2486. http://dx.doi.org/10.3390/en11092486.

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A large number of single-phase loads in an islanded microgrid have a bad influence on the alternating current (AC) bus voltage symmetry, which will further impact the power supply for the other loads. In this paper, the combined three-phase inverter is adopted as the distributed generation (DG) interface circuit for its independent control of each bridge. However, the combined three-phase inverter will generate an asymmetrical voltage with the traditional droop control. Moreover, the system impedance also effects the voltage symmetry. Therefore, the improved droop control method based on the s
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47

Stork, Milan, and Daniel Mayer. "Reactive power in circuits with sampled resistive load." Journal of Electrical Engineering 68, no. 5 (2017): 357–63. http://dx.doi.org/10.1515/jee-2017-0067.

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Abstract The process of power transmission lines, from source to load is a well-known, if the voltages and currents vary harmonically. With the lines is transmitted active power that is dissipated in load (this power exits from the system) and reactive power (this power oscillates between the source and the load). Note that it would be more appropriate designation the external power and the internal power. Such systems are known as cyclo-dissipative. The active power is dissipated in the load and the reactive power oscillates between the source and the load. Physically, reactive power is deliv
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48

Zein, Hermagsantos, Sri Utami, Siti Saodah, and Conny Kurniawan Wachjoe. "Compensation to Fulfill Voltage Drop Security in Medium Voltage Feeders." Jurnal Ilmiah Teknik Elektro Komputer dan Informatika 8, no. 4 (2022): 509. http://dx.doi.org/10.26555/jiteki.v8i4.24743.

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49

Abderahmane, Amari, and Kherfane Samir. "Contribution of STATCOM To Improving The Behavior Of High Voltage AC Networks." All Sciences Abstracts 1, no. 3 (2023): 1. http://dx.doi.org/10.59287/as-abstracts.922.

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This work proposes the application of a STATCOM for reactive energy compensation; its dynamic behavior will be verified by simulations under the MATLAB/SIMULINK environment. The circulation of reactive energy in an electrical network causes voltage drops between two ends, therefore the active power transported decreases, and to deal with this problem several classic solutions have beenadopted. The STATCOM "static synchronous compensator" is a type of FACTS placed as a shunt, which can remedy the problem of the circulation of reactive energy, and the regulation of the voltage.
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50

Guo, Qiang, Zhiping Dong, Heping Liu, and Xiaoyao You. "Nonlinear Characteristics Compensation of Inverter for Low-Voltage Delta-Connected Induction Motor." Energies 13, no. 3 (2020): 590. http://dx.doi.org/10.3390/en13030590.

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This paper proposes a scheme that can compensate for the nonlinear characteristics of voltage source inverters (VSIs) for low-voltage delta-connected induction motors (IMs). Due to the nonlinearity introduced by the dead-time, the on/off delay, and the voltage drop across the power device, the output voltage of VSIs is seriously distorted, causing distortion in the phase current of the IM, which will lead to output torque ripple. However, the existing compensation methods for three-phase VSIs are derived from star-connected loads, or ignore the conducting properties of power devices. Moreover,
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