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1. (WO2013118318) MOTOR DRIVING SYSTEM AND MOTOR DRIVING METHOD

Pub. No.:    WO/2013/118318    International Application No.:    PCT/JP2012/064695
Publication Date: Fri Aug 16 01:59:59 CEST 2013 International Filing Date: Fri Jun 08 01:59:59 CEST 2012
IPC: H02P 6/08
H02P 21/00
H02P 27/04
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
KOJIMA, Tetsuya
小島 鉄也
MORI, Tatsuya
森 辰也
TAKIGUCHI, Ryuichi
瀧口 隆一
HIROTANI, Yu
廣谷 迪
Inventors: KOJIMA, Tetsuya
小島 鉄也
MORI, Tatsuya
森 辰也
TAKIGUCHI, Ryuichi
瀧口 隆一
HIROTANI, Yu
廣谷 迪
Title: MOTOR DRIVING SYSTEM AND MOTOR DRIVING METHOD
Abstract:
The purpose of the present invention is to obtain a motor driving system and a motor driving method capable of improving motor output taking into consideration a voltage waveform of a voltage application unit that drives the motor. The motor driving system is equipped with: a motor; a current detection unit for detecting a motor current of the motor; a magnetic pole position detection unit for detecting a magnetic pole position of the motor; a control unit for generating a voltage command on the basis of the motor current, the magnetic pole position, and an externally supplied operating condition; and a voltage application unit for applying a drive voltage to the motor on the basis of the voltage command. The motor is configured such that a harmonic component is superimposed on the fundamental wave component of an induced voltage of the motor so that the waveform of the motor drive voltage takes the form of a trapezoid wave that is expanded from a sine wave.