Title:
可変速モータ装置
Document Type and Number:
Japanese Patent JP7174470
Kind Code:
B2
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.
More Like This:
Inventors:
Shoichi Tanaka
Application Number:
JP2019565651A
Publication Date:
November 17, 2022
Filing Date:
January 19, 2018
Export Citation:
Assignee:
Shoichi Tanaka
International Classes:
H02P27/08
Domestic Patent References:
| JP2015161433A | ||||
| JP2005160183A | ||||
| JP7308032A | ||||
| JP2014064416A | ||||
| JP63228901A | ||||
| JP2011030355A | ||||
| JP2017225323A | ||||
| JP2015164382A |