级联H桥STATCOM的电流检测和控制技术仿真研究  

Simulation Study of Current Detection and Control Technology for Cascaded H-bridge STATCOM

作　　者：杨彦磊 YANG Yanlei(School of Electric Power,North China University of Water Resources and Electric Power,Zhengzhou 450000,China)

机构地区：[1]华北水利水电大学电力学院,河南郑州450000

出　　处：《电工技术》2023年第1期24-28,共5页Electric Engineering

摘　　要：针对传统电流检测方法在非理想条件下精度不足的问题,在瞬时无功功率理论的基础上提出了级联H桥STATCOM的电流检测方法和相关控制技术,最后进行了实验仿真。仿真结果表明,改进后的检测方法可高效、准确地检测系统的无功电流,可及时调整无功功率,补偿实际电力需求,进一步抑制系统电压波动,提高系统性能。The current detection method and related control techniques of cascaded H-bridge STATCOM are proposed on the basis of instantaneous reactive power theory for the problem of insufficient accuracy of the conventional current detection method under non-ideal conditions.Then,experimental simulations are performed.The simulation results show that the improved detection method can efficiently and accurately detect the reactive current of the system,adjust the reactive power in time,compensate the actual power demand,further suppress the system voltage fluctuation,and improve the system performance.

关 键 词：静止同步补偿器 瞬时无功功率理论 无功补偿 电流检测 锁相环 

分 类 号：TM761[电气工程—电力系统及自动化]