发明授权
- 专利标题： Modular multilevel converter and charging circuit therefor
- 专利标题（中）： 模块化多电平转换器及充电电路
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申请号： US14597261申请日： 2015-01-15
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公开(公告)号： US09559541B2公开(公告)日： 2017-01-31
- 发明人: Zhongyuan Cheng , Bin Wu , Navid R. Zargari , Kai Tian , David Dewei Xu
- 申请人： Zhongyuan Cheng , Bin Wu , Navid R. Zargari , Kai Tian , David Dewei Xu
- 申请人地址： US OH Mayfield Heights
- 专利权人： Rockwell Automation Technologies, Inc.
- 当前专利权人： Rockwell Automation Technologies, Inc.
- 当前专利权人地址： US OH Mayfield Heights
- 代理机构： Fay Sharpe LLP
- 主分类号： H02M5/458
- IPC分类号： H02M5/458 ; H02M7/06 ; H02J7/00 ; H02M7/483
摘要：
Methods and charging apparatus are presented for charging cell capacitors of a multilevel power conversion system, in which an auxiliary charging source is selectively applied across DC bus terminals while one or more selected multilevel converter cells are alternately switched between a first state to bypass the selected cell or cells and a second state to charge the cell capacitor or capacitors of the selected cell via charging current from the auxiliary charging source.
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