Single-phase Asynchronous Motor Amplitude Compensation Control Implementation

Single-phase induction motor has simple structure, low manufacturing cost, andsingle-phase electricity is widely used in many fields especially in householdappliances. Numbers of traditional control method such as adjusting the terminalvoltage and the change of pole-pairs has far cannot satisfy the production and life.Asthe worldwide energy tension, energy saving, environmental protection put forwardhigher requirements on the performance of the single-phase introduction motor.Although the three-phase motor introduction variable frequency speed regulationtechnology has matured and, however, single-phase introduction motor variablefrequency speed regulation technology is also faced with some problems.What the paper studied is in order to solve the motor speed ripple problemswhich result from the inverter power supply used in Single-phase induction motor:(1) Single-phase introduction motor power supply converter selection: based onPWM rectifier and two phase inverter three bridge arms as a single-phaseasynchronous motor power supply converter.(2) Universal, the single-phase induction motor studied here is asymmetry.Based on the mathematical model of the single-phase induction motor, voltage oncoils should be directly proportional to the number of turns of coils, build amplitudecompensation control theory.(3) This paper adopts TMS320F2812of TI Company to control single-phaseintroduction motor.