CONVERTER

作品数:549被引量:635H指数:11
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Dynamic Interaction and Stability Analysis of Grid-following Converter Integrated Into Weak Grid
《CSEE Journal of Power and Energy Systems》2025年第2期552-566,共15页Shuang Li Haijiao Wang Yuehui Huang Guoqing He Chun Liu Weisheng Wang 
supported by Science and Technology Project of State Grid Corporation of China(4000-202317083A-1-1-ZN).
The grid-connected converter with grid-following control (GCC-GFL) for renewable energy sources has a risk of instability when integrated into the weak grid. This paper aims to investigate the dynamic interactions and...
关键词:Terms—Grid-connected converter grid-following control interaction mechanism stability region weak grid 
Overcurrent Mechanism and Suppression Control for MMC Arms in Hybrid Cascaded HVDC System
《CSEE Journal of Power and Energy Systems》2025年第1期306-317,共12页Nan Zhang Xiaodong Li Zheren Zhang Zheng Xu 
The hybrid cascaded HVDC system employs a line commutated converter(LCC)as the rectifier and an LCC in series with multiple paralleled modular multilevel converters(MMCs)as the inverter.MMC arms are susceptible to ove...
关键词:Hybrid cascaded HVDC system line commutated converter modular multilevel converter overcurrent suppression control 
Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity
《CSEE Journal of Power and Energy Systems》2025年第1期318-328,共11页Yang Li Zhikang Shuai Junbin Fang Xiangyang Wu 
supported in part by National Natural Science Foundation of China under Grant 52125705;in part by the China Postdoctoral Science Foundation under Grant 2021M701137.
This paper uses impedance sensitivity to identify the parameters that have dominant influences on the stability of multi-converter systems, which can then efficiently improve system stability. A modified 400 V IEEE 13...
关键词:CONVERTER impedance sensitivity small-signal model stability analysis stability improvement 
Transient Voltage Support Strategy of Grid-forming Medium Voltage Photovoltaic Converter in the LCC-HVDC System
《CSEE Journal of Power and Energy Systems》2024年第5期1849-1864,共16页Hong Lu Xianyong Xiao Guangfu Tang Zhiyuan He Zhiguang Lin Chong Gao Zixuan Zheng 
supported by the Science and Technology Project of State Grid Corporation of China(5500-202258115A-1-1-ZN).
The participation of photovoltaic(PV)plants in supporting the transient voltage caused by commutation failure in the line-commutated-converter-based high voltage direct current(LCC-HVDC)system is of great significance...
关键词:Commutation failure grid-forming(GFM) photovoltaic(PV)converter reactive power response transient voltage 
Coordinated Control of Parallel Three-phase Four-wire Converters in Autonomous AC Microgrids
《CSEE Journal of Power and Energy Systems》2024年第5期2065-2078,共14页Rui Liu Li Guo Xialin Li 
The coordinated control of parallel three-phase fourwire converters in autonomous AC microgrids is investigated in this paper.First,based on droop control,virtual impedance is inserted in positive-,negative-and zero-s...
关键词:AC microgrids sequence virtual impedance three-phase four-wire(3P4W)converter voltage imbalance compensation 
Advanced System-Level Model Reduction Method for Multi-Converter DC Power Systems
《CSEE Journal of Power and Energy Systems》2024年第4期1550-1562,共13页Lin Zhu Xueshen Zhao Xialin Li Li Guo Bo Zhao Zhanfeng Deng Hao Lu Chengshan Wang 
supported by the National Key Research and Development Program of China(2020YFB1506800);the China Postdoctoral Science Foundation(2021M692378);the National Natural Science Foundation of China(51977142).
For dynamic stability analysis and instability mechanism understanding of multi-converter medium voltage DC power systems with droop-based double-loop control,an advanced system-level model reduction method is propose...
关键词:Closed-loop reduced-order model instability mechanism open-loop reduced-order model stability analysis system-level model reduction method 
Model Predictive Current Control for Low-Cost Shunt Active Power Filter
《CSEE Journal of Power and Energy Systems》2024年第4期1589-1598,共10页Ali A.Abdel-Aziz Mohamed A.Elgenedy Barry W.Williams 
Performance of a three-phase shunt active power filter(SAPF)relies on the capability of the controller to track the reference current.Therefore,designing an accurate current controller is crucial to guarantee satisfac...
关键词:Four-switch converter harmonic distortion model predictive current control power quality shunt active power filter 
Convexification of Hybrid AC-DC Optimal Power Flow with Line-Commutated Converters
《CSEE Journal of Power and Energy Systems》2024年第2期617-628,共12页Hongyuan Liang Zhigang Li J.H.Zheng Q.H.Wu 
supported by the National Natural Science Foundation of China under Grant 52177086;the Fundamental Research Funds for the Central Universities under Grant 2023ZYGXZR063;the Science and Technology Program of Guizhou Power Grid Coorperation under Grant GZKJXM20222386.
Line-commutated converter (LCC)-based high-voltage DC (HVDC) systems have been integrated with bulk AC power grids for interregional transmission of renewable power. The nonlinear LCC model brings additional nonconvex...
关键词:AC-DC power system convex relaxation linecommutated converter optimal power flow second-order cone programming 
Composite Converter Combined APFC with Switched-capacitor Converter
《CSEE Journal of Power and Energy Systems》2024年第1期281-291,共11页Qing Fu Yishan Chen Yixing Su Yang Hang 
supported by National Natural Foundation of China(61871410).
To reduce switch numbers and voltage stress in semiconductor devices,this paper proposes a novel single-phase converter combined Active Power Factor Correction(APFC)with switched-capacitor converter.In addition,dynami...
关键词:AC-DC converter composite conveter power factor correction switched capacitor 
Impact of Frequency Anti-windup Limiter on Synchronization Stability of Grid Feeding Converter
《CSEE Journal of Power and Energy Systems》2023年第5期1676-1687,共12页Junru Chen Chenchen Ge Di Qiang Hua Geng Terence O'Donnell Federico Milano 
supported in part by the National Natural Science Foundation of China(U2166601,U2066602);the Science and Technology Department of Xinjiang under Grant No.2021D01C086;funded by Sustainable Energy Authority of Ireland(SEAI)by under project FRESLIPS,Grant No.RDD/00681.
Loss of synchronization is one of the main issues for a grid-feeding converter in a weak grid after being subjected to a large disturbance.The synchronous transient is highly nonlinear due to phase movement and freque...
关键词:Frequency Limiter(FL) grid-following converter Phase-Locked Loop(PLL) synchronization stability 
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