[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.1007/s43236-021-00331-8

Three-phase and single-phase motor drive system with single three-phase two-level inverter for independent speed control

Park, Da-Hye (Department of Electrical Engineering, Chungnam National University)
Kim, Min (Department of Electrical Engineering, Chungnam National University)
Lee, Wook-Jin (Department of Electrical Engineering, Chungnam National University)

Publication Information

Journal of Power Electronics / v.22, no.1, 2022 , pp. 40-49 More about this Journal

Abstract

This paper presents a dual-motor drive system with a three-phase two-level inverter for independent speed control of a three-phase motor and a single-phase motor. The single-phase motor is connected in series between the neutral point of the three-phase motor and the midpoint of two split DC-link capacitors. As the single-phase motor current is a zero-sequence component flowing in the three-phase motor, it does not affect the operation of the three-phase motor. The proposed drive system can reduce the number of power switches compared with the conventional drive system that uses a single-phase and a three-phase inverter. Thus, the proposed system can reduce the cost of the drive system. Simulations and experiments are presented to verify the proposed drive system.

Keywords

Variable frequency drive; Three-phase two-level inverter; Two-leg inverter; Multiple-motor drive system; Offset voltage; Pulsewidth modulation;

Citations & Related Records

Reference

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