论文部分内容阅读
阐述了基于瞬时无功功率理论的ip-iq谐波电流检测法并对此进行了演化分析。基波有功电流的精准检测决定了谐波指令电流的精度。为实现基波有功电流无延时、无误差的检测,在SPWM控制策略下运用了无谐波检测环节的谐波指令电流检测方法,利用MATLAB/Simulink仿真工具对ip-iq检测法和无谐波检测法进行仿真对比,通过改变系统参数电感量来验证无谐波检测方法的补偿性能。仿真结果验证了无谐波检测的优越性,为改善滤波器的滤波效果和推进优化控制策略提供了良好的途径。
The ip-iq harmonic current detection method based on instantaneous reactive power theory is expounded and its evolution analyzed. The accurate detection of the fundamental active current determines the accuracy of the harmonic command current. In order to realize no delay and error-free detection of fundamental active current, the harmonic command current detection method without harmonic detection is applied under SPWM control strategy. By using MATLAB / Simulink simulation tool, Wave test method to simulate the comparison, by changing the inductance of the system parameters to verify the non-harmonic detection method of compensation performance. The simulation results verify the superiority of non-harmonic detection, which provides a good way to improve the filter effect and promote the optimization of control strategy.