Presenting a methodProvide an intelligent method to reduce the range of selected harmonics in voltage source inverters

Subject Areas : Optimization

javad safaee kouchaksaraee ¹ (دانشگاه آزاد اسلامی شهمیرزاد/سمنان/ایران)

Received: 2020-09-18 Accepted : 2021-02-13 Published : 2021-02-13

Keywords: Harmonic, Harmonic Distortion, Nonlinear loads, Voltage source inverters, New salp congestion algorithm (SSA),

Abstract :

Identifying the location, magnitude of nonlinear loads, and the effects of harmonics is one of the most important parts of maintenance planning, troubleshooting, and modification of power systems. Therefore to determine the keying pattern of selective deletion of harmonics, a new salp congestion algorithm has been used which has been applied to a 7-levels inverter and the results have been investigated in different cases. In the following, first, we discuss how to simulate the 7-levels inverter and the harmonic produced by it in MATLAB software, and then the results of the proposed design are reviewed. The results show that using the proposed design since the output line voltage of the 3phase inverter is used, the harmonic is reduced by more than 5% compared to the ground state. In this case, the overall harmonic value of the line voltage is approximately 14%, which has been reduced by 8.73% by normal implementation with offline calculations and by 8.43% by online calculations, which shows the accuracy and the performance of the proposed algorithm is to reduce the harmonic distortion at the output voltage…