368 / 2018-03-29 11:14:44

Three-phase Four-switch APF Model Predictive Control Based on Harmonic Free Detection

全体主题 > Device characterization and modeling

This paper presents a predictive control three-phase four switch without harmonic detection technology based on APF model, model predictive control to replace the traditional four switch inverter SVPWM modulation algorithm, without sector judgment and voltage vector calculation time, avoid the bus midpoint potential offset caused by sector misjudgment and synthesis of zero voltage vector error. The compensation effect of the traditional SVPWM modulation algorithm and model predictive control on the system is analyzed. It is concluded that the predictive signal with two sampling periods is better compensated in the prediction error range. The new control scheme omits the harmonic detection correlation operation, simplifies the modulation algorithm, and the control is simple and effective. Simulation results show the effectiveness and practicability of the proposed method.