电力系统保护与控制2015，Vol.43Issue(14)：131-136,6.
三相电流源型STATCOM的无锁相环控制策略
A control strategy of three-phase current source converter based STATCOM without PLL
王烨 1牟宪民 1齐琛1
作者信息
- 1. 大连理工大学电气工程学院,辽宁 大连 116023
- 折叠
摘要
Abstract
In order to deal with the problem of the traditional phase-locked loop (PLL), such as it can only get the frequency and does not consider the phase of grid voltage, the PLL control is inaccurate, leading to poor control performance of the whole system and so on. This paper proposes a control strategy without PLL which is applicable to CSC-STATCOM, transforms the coordinates in three-phase grid voltage, and gets the synchronous rotation angle according to the relationship of the coordinate systems. This control strategy can get the precise frequency and phase of grid voltage in time. The control strategy of this system is introduced in detail, and a model of the system is built in Matlab/Simulink. The effectiveness of this control strategy is verified by simulations performed in Simulink, and the simulation results indicate that this control strategy can improve detection accuracy of the system, and can speed up the dynamic response of the system.关键词
电流源型STATCOM/无锁相环/坐标变换/动态响应/SimulinkKey words
current source converter based STATCOM (CSC-STATCOM)/no phase-locked loop (PLL)/coordinate transformation/dynamic response/Simulink分类
信息技术与安全科学引用本文复制引用
王烨,牟宪民,齐琛..三相电流源型STATCOM的无锁相环控制策略[J].电力系统保护与控制,2015,43(14):131-136,6.
