Using Bat Algorithm to Reduce Total Harmonic Distortion in Multi-Level Inverter

In this paper, a new optimization method is proposed that is inspired by bounce motion algorithm based on sound reflection to find the angles of fire in multi-level inverters of the voltage source to reduce the total harmonic distortion (THD). In the proposed method, the angles must be calculated so that the amplitude of the required main frequency voltage is generated and at the same time the output of the THD is low. This method can be used for multi-level inverters with any number of levels. In this paper, the 7-level inverter and optimum switching angles will be calculated as the plane and finally the results will be presented