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New inverter-driven design and control method for two-phase induction motor drives

New inverter-driven design and control method for two-phase induction motor drives

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A simple inverter circuit is proposed for driving symmetrical and unsymmetrical two-phase induction motors. The inverter provides two-phase independently controlled variable-frequency variable voltages to the primary and auxiliary windings of an induction motor. The dynamic model of the two-phase induction motor driven by the inverter is established. An experimental prototype, which consists of a single-chip microprocessor-based controller, the inverter, and the motor and load, is constructed. Both computer simulation and experimental results show the effectiveness of the proposed inverter-driven motor in achieving higher performance, such as less torque and speed pulsation and reduced vibration and noise, than the conventional motors.

Inspec keywords: invertors; controllers; power engineering computing; induction motor drives; microcomputer applications; machine control

Other keywords: auxiliary windings; primary windings; inverter design; two-phase induction motor drives; symmetrical two-phase induction motors; vibration reduction; noise reduction; unsymmetrical two-phase induction motors; control method; variable-frequency variable voltages; single-chip microprocessor-based controller; computer simulation; dynamic model

Subjects: Controllers; Asynchronous machines; Control of electric power systems; Control engineering computing; Power convertors and power supplies to apparatus; Power engineering computing; Drives

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