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Patent Searching and Data


Title:
VARIABLE SPEED MOTOR DEVICE AND CONTROLLER FOR SAME
Document Type and Number:
WIPO Patent Application WO/2019/142316
Kind Code:
A1
Abstract:
Provided is a variable speed motor device with which it is possible to reduce power loss and weight. A PWM inverter has one or three stop legs capable of cutting off power supply current supplied from a first DC power supply. When the free-wheeling current of a stator coil charges a low-voltage battery via a rectifier and a charging switch, the inverter has one or three stop legs. During one stop-leg spatial vector PWM, six sub-vectors each including one stop leg are used. During another stop-leg spatial vector PWM, six sub-vectors each including one stop leg and six main vectors each having no stop leg are used. The connection of a plurality of batteries is switched by a connection switching circuit.

Inventors:
TANAKA Shouichi (2-601, Oumorihachiryuu Moriyama-k, Nagoya-shi Aichi 28, 〒4630028, JP)
Application Number:
JP2018/001582
Publication Date:
July 25, 2019
Filing Date:
January 19, 2018
Export Citation:
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Assignee:
TANAKA Shouichi (2-601, Oumorihachiryuu Moriyama-k, Nagoya-shi Aichi 28, 〒4630028, JP)
International Classes:
H02P27/08
Foreign References:
JP2005160183A2005-06-16
JP2015164385A2015-09-10
JPS63228901A1988-09-22
JP2011030355A2011-02-10
JP2017225323A2017-12-21
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