Title:
電動機システム及びその制御方法
Document Type and Number:
Japanese Patent JP7027195
Kind Code:
B2
Abstract:
The purpose of the present invention is to, in an electric motor system which is connected to a rotary shaft of a supercharger, reduce the size of an electric motor without excessively enhancing the voltage-resistant performance of a power conversion device. An electric motor system (1) is provided with: an electric motor (30) that is connected to a rotary shaft of a supercharger (10); a power conversion device that supplies power to the electric motor (30); a contactor (50) that performs switching between connection and disconnection of the electric motor (30) and the power conversion device; and a control device (40) that controls the contactor (50). The control device (40) is provided with a first control unit that determines whether or not the rotation speed of the electric motor (30) is equal to or higher than a first threshold, and a second control unit that determines whether or not the rotation speed of the electric motor is equal to or higher than a second threshold which is set to a value greater than the first threshold. When the rotation speed of the electric motor is determined to be equal to or higher than the first threshold or the second threshold, the contactor (50) is set to the open state so as to disconnect the connection between the electric motor (30) and the power conversion device.
Inventors:
Tsuji Tsuyoshi
Yoshihisa Ono
Yamashita Yukio
Musashi Sakamoto
Yoshihisa Ono
Yamashita Yukio
Musashi Sakamoto
Application Number:
JP2018032776A
Publication Date:
March 01, 2022
Filing Date:
February 27, 2018
Export Citation:
Assignee:
Mitsubishi Heavy Industries Marine Machinery Co., Ltd.
International Classes:
H02P29/024; B60L3/00; B63H21/14; F02B37/10
Domestic Patent References:
| JP2006037876A | ||||
| JP2009250080A |
Attorney, Agent or Firm:
Fujiharu
Takaori Mitoma
Miki Kawakami
Daisuke Nagata
Takaori Mitoma
Miki Kawakami
Daisuke Nagata