发明授权
- 专利标题： Method and arrangement in connection with electric device system
- 专利标题（中）： 与电气设备系统相关的方法和布置
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申请号： US13086971申请日： 2011-04-14
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公开(公告)号： US08841872B2公开(公告)日： 2014-09-23
- 发明人: Osmo Pasuri , Reijo Kalevi Virtanen , Jorma Keronen
- 申请人： Osmo Pasuri , Reijo Kalevi Virtanen , Jorma Keronen
- 申请人地址： FI Helsinki
- 专利权人： ABB Oy
- 当前专利权人： ABB Oy
- 当前专利权人地址： FI Helsinki
- 代理机构： Buchanan Ingersoll & Rooney PC
- 优先权： FI20105396 20100415
- 主分类号： H02P1/00
- IPC分类号： H02P1/00 ; H02P25/22 ; H02J3/00
摘要：
A method and arrangement in connection with an electric drive system are provided. The electric drive system includes an intermediate circuit with two or more supply units and two or more inverter units connected thereto, and an electric machine having two or more three-phase windings galvanically separated from each other. Two or more inverter units are connected to the three-phase windings. The arrangement also includes first main circuit switches to galvanically separate each supply unit from a supply, second main circuit switches to galvanically separate each supply unit from the intermediate circuit, first intermediate circuit switches to galvanically separate each inverter unit from the intermediate circuit, and second intermediate circuit switches to galvanically separate each inverter unit from the electric machine.
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