An Improved Hybrid PSO-TS Algorithm for Solving Nonlinear Equations of SHEPWM in Multilevel Inverters

Selective Harmonic Elimination Pulse Width Modulation (SHEWM) can eliminate selected low order harmonics by solving nonlinear transcendental equations to obtain the switching angles in advance and achieve precise control. However, when equations, convergence rate solution accuracy of existing intelligent algorithms for multilevel inverter SHEPWM will decrease with increase number angles. In this paper, an improved hybrid PSO-TS algorithm (IPSO-TS) is proposed angle selection PWM inverter. IPSO-TS algorithm, both PSO TS are respectively enhance their calculating multiple Also, these two combined IPSO-TS, which used provide global search capabilities, increases solutions. Simulations carried out using MATLAB/SIMULINK environment demonstrate better compared other methods. Moreover, simulation results further verified experimental results.