Quasi -Proportional-Resonant Control of Induction Motor Based on Rotor Flux Orientated

A new control method of induction motor oriented according to the rotor flux linkage, the current feedforward compensation model of proportional resonant controller is proposed, and it is applied in the control of induction motor. Based on the mathematical model of induction motor, combined with the characteristics of proportional resonance controller, the proportional resonance control feedforward current compensation is proposed. It makes full use of the advantages of quasi-proportional resonance control, which can control the static coordinate system without static difference, suppresses the current high-order harmonics, improves the stator current waveform, and realizes the suppression of the harmonic torque ripple caused by the high-order harmonics of the stator current. Simulations show the correctness and effectiveness of the proposed method.