A new method of solving SPWM switch point based on natural sampling

Contraposing the shortcomings of natural sampling method that has to solve complex transcendental equation and is difficult to achieve real-time control, this paper presents a method that using binary search to solve SPWM switching points based on natural sampling method. This improved algorithm is programmed using C language and simulated in MATLAB environment by C-MEX file. The result confirms its effectiveness and feasibility.