航空串联式有源电力滤波器的仿真研究

摘要

提高航空交流电网供电品质,对于确保飞机安全具有重要意义.有源电力滤波器(APF)因其谐波补偿动态性能好,成为治理谐波污染的一种有效装置.分析了串联式有源电力滤波器(SAPF)谐波补偿的基本原理,着重介绍了基于瞬时无功功率理论的谐波电压检测方法.在Matlab/Simulik环境下,基于瞬时无功功率理论的ip-iq谐波检测方法,采用直流电压、补偿电流的双闭环控制结构,建立了SAPF系统仿真模型,包括三相400 Hz飞机电源、非线性电压负载、谐波检测以及补偿跟踪电路等模型.实验结果表明SAPF实现了对负载谐波的显著抑制,证明了SAPF应用于航空电网谐波治理是可行的.%It is very significant for aircraft safety that enhancing the quality of aviation alternating power.With an excellent harmonic compensation property,active power filter(APF) is an equipment that can control pollution and improve power quality.Harmonic compensation principle of series active power filter(SAPF) is analyzed and testing method of the harmonics voltage based on the instantaneous reactive power is introduced emphatically.Under Matlab/Simulik environment,the system simulation model of SAPF is established based on the ip-iq harmonic testing method of the instantaneous reactive power,by adopting the control structure of dual closed feedbacks of direct voltage and compensational current,including simulation models such as 400 Hz aircraft power,nonlinear voltage load,harmonic testing and compensation tracking circuit and so on.The experiment result proves that it is quite effective that harmonics from nonlinear load is supressed and harmonic of aircraft power system is governed by SAPF.