MATLAB Simulation Research on Harmonic Elimination Algorithm of Active Power Filter Based on Cascaded Multilevel Inverter Technology

MATLAB simulation research on the Harmonic elimination algorithm of active power filter based on cascaded multilevel inverter technology is conducted in the paper. After obtaining the signal in the two-phase stationary coordinate system through coordinate transformation, sector judgment is then carried out to synthesize three basic vectors of the reference voltage vector. Then perform time calculation to determine the action time of the three basic vectors, that is, the duty cycle. In the actual measurement of non-sinusoidal periodic signals, it is generally used in a continuous period of time to then make the voltage signal undergo analog-to-digital conversion to obtain a discrete time signal represented by a finite word length, and intercept a period from it to calculate the harmonics of each order with the amplitude of the wave. Through the MATLAB, the proposed model is simulated. The designed model is proven to be efficient.