摘  要：該文基于串聯多電平技術，完成一套鏈式靜止同步補償器控制系統的研究與設計。根據反饋解耦控制算法和單級倍頻載波相移正弦脈寬調制方法，采用串聯多電平技術，以TMS320F28335為核心處理器，采用軟件算法實現補償器直流側電壓均衡控制。設計鏈式結構的三相電壓源逆變器，構成鏈式靜止同步補償器系統，實現系統無功補償控制。經過試驗測試，結果表明：該系統的無功補償效果與理論一致，設計可行、可靠。

關鍵詞：無功補償；反饋解耦控制算法；串聯多電平；鏈式靜止同步補償器

文獻標志碼：A       文章編號：1674-5124（2015）12-0100-06

Research and design of control system for cascade static synchronous compensators

WEI Lijun1，2， XIE Yongchao2

（1. School of Geosciences and Info-Physics，Central South University，Changsha 410083，China；

2. Hu’nan Railway Professional Technology College，Zhuzhou 412001，China）

Abstract: A control system for cascade static synchronous compensators has been developed on the basis of cascaded multilevel technology. In combination with feedback decoupling control algorithm and sinusoidal pulse width modulation for single-level frequency doubling carrier phase shifting， using cascaded multilevel technology， TMS320F28335 as core processor and software algorithm were employed to realize compensator DC-side voltage balancing control. A chain-linked three-phase voltage source inverter was designed accordingly to constitute a cascade static synchronous compensator system， thus achieving the goal of reactive power compensation control. Tests prove that the system is feasible and reliable.

Keywords: reactive power compensation； feedback decoupling control algorithm； cascaded multilevel；cascade static synchronous compensator