摘要
简要分析了并联有源电力滤波器的工作原理,选取含有裂相电容的三桥臂电压源型逆变器作为系统主电路,输出电流采用动态滞环控制。针对三相四线系统,且考虑到电网电压畸变和不对称的情况,给出了一种基于瞬时功率理论实现无功功率和谐波全补偿的控制策略,并使用Matlab对系统进行了仿真。
This paper analyses the operating principle of the shunt active power filter. The main circuit of the shunt active power filter selects a three-leg voltage-source inverter with split dc link capacitors, and a dynamic hysteresis-band current control is used. A control strategy based on the instantaneous power theory is given in consideration of the source voltage becoming distorted and unbalanced, which can compensate the reactive power and harmonics completely for three-phase four-wire systems, The system is simulated with Matlab, and the simulation results show that the strategy is correct.
出处
《电子器件》
EI
CAS
2006年第4期1139-1142,1146,共5页
Chinese Journal of Electron Devices
关键词
并联有源滤波器
瞬时功率
全补偿
动态滞环控制
shunt active power filter
instantaneous power
fully-compensated
dynamic hysteresis-band control
