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Square wave operation for a single-phase PFC three-phase motor drive system without a reactor

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2 Author(s)
Itoh, J.-I. ; Electr. & Electron. Eng., Nagaoka Univ. of Technol., Nagaoka, Japan ; Ohtani, N.

This paper proposes a square wave control strategy for a new boost-up converter which uses the leakage inductance of a motor instead of a boost up reactor. Since the power supply is connected to the neutral point of the motor, the current distortion in the power supply occurs when the inverter outputs square waveforms. First, this paper describes the characteristic of the proposed circuit and the problems in the square wave operation. Next, a current control method for the square waveform is proposed to suppress the current distortion. Finally, the validity of the proposed converter and its control strategy are demonstrated by experimental results.

Published in:
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on

Date of Conference: 15-18 Nov. 2009

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