基于GTO的48脉波±100Mvar STATCOM研究

Research of ± 100 Mvar 48-pulse STATCOM Based on GTO

本文分析了基于GTO的48脉波+100Mvar STATCOM的数学模型,工作机理及基于直接相角控制的控制策略,给出了主电路。并以500k V超高压环行骨干输电线路为工程背景,搭建了±100Mvar STATCOM的Matlab仿真模型。仿真结果表明:STATCOM能够快速平滑地向电网节点注入或吸收无功功率从而在一个周波时间维持节点电压稳定,改善电能质量。

This paper analyzes the mathematical model,working mechanism and the direct phase angle control strategy of the 48-pulse ＋100 Mvar GTO STATCOM,gives its main circuit,and sets up Matlab simulation model on the 500KV EHV backbone transmission line engineering background. Simulation results show that STATCOM can smoothly and quickly inject or absorb reactive power to maintain the node voltage stability and improve power quality in one cycle time .