Topology Optimization and Control of Grid-connected Converter with Integrated Voltage Compensation and Reactive Power Support Capability

被引：0
|
作者：
Jia W. [1 ]
Guo Q. [1 ]
Tu C. [1 ]
Jiang F. [2 ]
Hou Y. [1 ]
Li Q. [3 ]
机构：
[1] National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha
[2] School of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha
[3] State Grid Anhui Electric Power Co. Ltd. Research Institute, Hefei
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2023年 / 47卷 / 01期
基金：
中国国家自然科学基金;
关键词：
current compensation; fault current limiting; function integration; grid-connected converter; reliability; topology optimization; voltage compensation;
D O I：
10.7500/AEPS20220422008
中图分类号：
学科分类号：
摘要：
Aiming at the low utilization rate and poor reliability of the traditional series-connected power quality control device, and the ability of the parallel-connected power quality control device to solve the voltage fluctuation problem needs to be further improved, a multi-function grid-connected converter (MF-GCC) with integrated voltage support and reactive power regulation capability is proposed. When the grid voltage fluctuates, the MF-GCC works in the series access mode to realize the voltage regulation function. When the grid voltage is normal, the MF-GCC works in the parallel access mode to achieve the unit power factor operation on the grid side. Compared with the traditional series-connected power quality control device, the MF-GCC only has one more switch and one more coupling capacitor, which can realize the effective integration of the functions of series-connected and parallel-connected power quality control device. In addition, when the system fails, the port voltage of the active part in the MF-GCC is clamped to zero and the fault current is limited. Thus the reliability of the MF-GCC itself and its connection to grid is fully improved. This paper analyzes the topology structure, working principle, control strategy and parameter design of MF-GCC in detail. Simulation and experimental results verify the effectiveness and feasibility of the proposed topology and control strategy. © 2023 Automation of Electric Power Systems Press. All rights reserved.
引用
收藏
页码：153 / 161
页数：8
相关论文
共 28 条
  • [1] LI Aowei, LIU Lu, CHENG Haozhong, Et al., Transmission expansion planning test system considering transmission and distribution coordination with integration of high proportion of renewable energy［J］, Automation of Electric Power Systems, 45, 11, pp. 19-27, (2021)
  • [2] ZHANG Tiance, WANG Jianxiao, LI Gengyin, Et al., Perception method of voltage spatial-temporal distribution of distribution network with high penetration of renewable energy ［J］, Automation of Electric Power Systems, 45, 2, pp. 37-45, (2021)
  • [3] ZHANG Ming, WANG Songfeng, Study on power quality control of mid-voltage distribution system ［J］, Electrical Engineering, 21, 9, pp. 103-107, (2020)
  • [4] XIAO Xianyong, TAN Xiumei, WANG Ying, Et al., Voltage sag economic losses assessment based on electrical characteristic-physical attribute-perceived loss［J］, Proceedings of the CSEE, 38, pp. 105-110, (2018)
  • [5] LI Tianchu, WU Zhipeng, FANG Ming, Et al., Load loss rate evaluation method of an industrial process under voltage sag based on Larsen reasoning［J］, Power System Protection and Control, 50, 4, pp. 145-153, (2022)
  • [6] TIAN Shuya, JIA Qingquan, LIN Lijuan, Et al., Collaborative allocation of voltage detection active power filter and static var generator for harmonic and voltage comprehensive mitigation［J］, Automation of Electric Power Systems, 45, 24, pp. 149-157, (2021)
  • [7] HUANG Xiaoming, FAN Zhihua, MIAO Shihong, Et al., Coordinated power control strategy of unified power quality conditioner with energy storage unit ［J］, High Voltage Engineering, 44, 10, pp. 3390-3398, (2018)
  • [8] LIU Yufeng, WU Xuezhi, LIU Jingdou, Et al., Voltage sag judgment method considering influence of phase angle on amplitude characteristics during sag ［J］, Electric Power Automation Equipment, 41, 3, pp. 122-128, (2021)
  • [9] MENG Linghui, SHU Zeliang, YAN Han, Et al., Control strategy for single-phase unified power quality conditioner of parallel converter based on specific order harmonics compensation ［J］, Transactions of China Electrotechnical Society, 35, 24, pp. 5125-5133, (2020)
  • [10] TU Chunming, HOU Yuchao, GUO Qi, Et al., Adaptive arc suppression control strategy for grounding fault considering influence of line impedance in distribution network ［J］, Automation of Electric Power Systems, 46, 8, pp. 163-171, (2022)
123