不平衡非线性工况下STATCOM的控制

Control of STATCOM under Condition of Unbalance and Nonlinearity

针对传统STATCOM不能对不平衡非线性负荷系统补偿的现象,提出了一种新型STATCOM控制方法,该方法融合了传统STATCOM能补偿无功电流、不平衡电流和APF可以补偿谐波电流的特点.本文给出了新型STATCOM控制方法的总体结构,分别介绍了结构中三种模块的结构和原理,最后在PSIM仿真软件中搭建了仿真平台,仿真结果验证了所提方法的正确性.

Considering that the traditional STATCOM could not compensate for the unbalance nonlinearity load system; a new STATCOM control method is proposed. Compared with traditional one, the STATCOM can com-pensate for reactive current and unbalance current characteristics and APF can compensate for harmonic current characteristics. Firstly, the overall structure of the new STATCOM control method is given, and then the struc-ture and principles of three modules are introduced. Finally, a simulation module is built in PSIM software. The simulation results verify the correctness of the proposed method.