By analyzing the basic principle of voltage space vector PWM (SVPWM) and the AC electronic load which consists of voltage source PWM rectifier, a novel current control method is proposed. The control strategy combining the SVPWM and hysteresis current control technology is adopted. The vector of current error or the vector of differential of current error is used to select the most suitable voltage space vector, and control the current error in the limit of hysteresis band. The result shows that with the new scheme, the fast current response is gained and the current harmonic is eliminated, so that the dynamic performance of current tracking and the system stability are improved.
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