高压大功率非线性电流型STATCOM在输电网中的应用研究

doi:10.11985/2017.08.006

电气工程学报 ›› 2017, Vol. 12 ›› Issue (8): 34-41.doi: 10.11985/2017.08.006

高压大功率非线性电流型STATCOM在输电网中的应用研究

赵建阳^1,²,张福民²,刘福贵²,刘永和³

^1. 中国能源建设集团天津电力设计院有限公司天津 300400
^2. 河北工业大学电磁场与电器可靠性省部共建重点实验室天津 300130
^3. 内蒙古工业大学电力学院呼和浩特 010080

收稿日期:2016-11-22 出版日期:2017-08-25 发布日期:2019-12-11
作者简介:赵建阳男 1985年生,博士,研究方向为电力系统及其自动化。|张福民男 1965年生,博士,副教授,研究方向为电力电子与电气传动、柔性交流输电和高压直流输电。

Research on High-Voltage High-Power Nonlinear Current-Source STATCOM Applied in Power Transmission System

Zhao Jianyang^1,²,Zhang Fumin²,Liu Fugui²,Liu Yonghe³

^1. China Energy Engineering Group Tianjin Electric Power Design Institute Co.,Ltd. Tianjin 300400 China
^2. Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability Hebei University of Technology Tianjin 300130 China
^3. Faculty of Electric Power Inner Mongolia University of Technology Hohhot 010080 China

Received:2016-11-22 Online:2017-08-25 Published:2019-12-11

摘要/Abstract

摘要：

大功率STATCOM可以为电网电力传输提供大量无功功率,然而其控制系统具有很强的非线性。为了实现STATCOM无功功率输出的线性控制,本文提出了一种基于多电平电流重注入式电流型换流器（MLCR-CSC）的电流型STATCOM,阐述了MLCR-CSC的拓扑结构和新型STATCOM的工作原理,设计了直接电流控制系统。仿真结果表明,MLCR-CSC的谐波含量低于4%,基波周期内有6个零电流时刻实现大电流过零关断。电流直接控制方式不但满足输电网对无功功率的需求,而且对不对称故障响应迅速。

关键词: 电流型STATCOM MLCR-CSC, 非线性控制模型, 直接电流控制, 零电流关断

Abstract:

High power STATCOM can provide a large amount of reactive power for power transmission, however, its control system is highly nonlinear. In order to realize linear control reactive power of STATCOM, a new type is proposed based on MLCR-CSC. The STATCOM working principle is introduced, and the direct current control strategy is designed with double closed loop control system. The simulation results show that MLCR-CSC harmonic content is lower than 4%, and six zero current pulse realized large zero current switching. STATCOM satisfied the demand of reactive power in power grid and gave a quick responds during asymmetric fault.

Key words: Current-source STATCOM, MLCR-CSC, nonlinear control model, direct current control strategy, zero current switching

中图分类号:

TM315

赵建阳,张福民,刘福贵,刘永和. 高压大功率非线性电流型STATCOM在输电网中的应用研究[J]. 电气工程学报, 2017, 12(8): 34-41.

Zhao Jianyang,Zhang Fumin,Liu Fugui,Liu Yonghe. Research on High-Voltage High-Power Nonlinear Current-Source STATCOM Applied in Power Transmission System[J]. Journal of Electrical Engineering, 2017, 12(8): 34-41.

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高压大功率非线性电流型STATCOM在输电网中的应用研究

Research on High-Voltage High-Power Nonlinear Current-Source STATCOM Applied in Power Transmission System

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