摘要
笔者研究了将级联多电平拓扑应用于有源电力滤波器(APF)的方法。在调制方法上采用载波移相的调制技术,在控制上采用简单的PI控制方法。仿真结果表明,这种基于级联多电平拓扑的有源电力滤波器能很好地跟踪补偿电网谐波,具有很好的动态响应和较高的检测精度,并且快速准确地实现各个变流器单元直流侧电容的均压控制,这对拓展有源电力滤波器在高压领域的应用有积极意义。
The method of applying cascaded multilevel topology to active power filter is studied.Carrier phase shifting PWM is adopted,and the simple PI controller is used to control the output current of APF.Simulation result demonstrated that APF based on cascaded multilevel topology could trace and compensate the grid harmonics acc-urately,and good dynamic response and high detection accuracy are approached.Furthermore,DC capacitors voltage of each link could be balanced fast and accurately.The application of APF in high voltage field is expanded.
出处
《高压电器》
CAS
CSCD
北大核心
2011年第4期28-32,36,共6页
High Voltage Apparatus
基金
台达2010电力电子科教发展计划项目(DREG2010009)~~
