基于MATLAB的单相电路谐波检测方法的对比分析

Based on Comparative Analysis of The Single-phase Circuit MATLAB Harmonic Detection Method

为了满足有源电力滤波器对谐波及无功电流检测的实时性和准确性的要求,本文建立了两种单相电路谐波检测方法的MATLAB仿真模型,利用仿真结果对两种方法的检测性能特别是它们在实际应用时的检测性能进行了比较。比较结果表明:在理想情况下,基于瞬时无功功率理论检测方法和基于有功电流分离法的检测方法的检测精度无明显差别,而基于有功电流分离法的检测方法的动态性能优于基于瞬时无功功率理论检测方法。

In order to meet the active power filter harmonic and reactive current real-time detection and accuracy requirements,this paper set up two single-phase circuit harmonic detection method MATLAB simulation model,the simulation results of the two methodsthe detection properties,especially their use in practical applications of the detection performance compared.The results of the comparison: In the ideal case,based on instantaneous reactive power theory detection methods and no significant difference,based on the detection accuracy of the active current separation detection method based on the dynamic performance of the active current separation detection method is superior based on instantaneousreactive Power Theory detection methods.