Simulation of SVPWM control strategy for dual three-phase asynchronous motor

Abstract

This paper proposed an improved SVPWM (voltage space vector PWM) control strategy for the problem of rotor loss and low power quality in traditional dual three-phase asynchronous motor control strategy. The switch status of VSC (voltage source converter) is grouped into vectors to identify 64 available switch states. Each stator phase voltage can be obtained from this vector and dc bus voltage. Decoupling Clarke [1] transformation matrix is mapped to two orthogonal stable sub spaces. SVPWM control can greatly reduce current harmonics to improve the quality of the power.