发明申请
- 专利标题: POWER CONVERTING APPARATUS
- 专利标题(中): 电源转换装置
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申请号: US13258055申请日: 2009-04-01
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公开(公告)号: US20120014139A1公开(公告)日: 2012-01-19
- 发明人: Masaki Yamada , Takahiro Urakabe , Akihiko Iwata , Norikazu Ito
- 申请人: Masaki Yamada , Takahiro Urakabe , Akihiko Iwata , Norikazu Ito
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Electric Corporation
- 当前专利权人: Mitsubishi Electric Corporation
- 当前专利权人地址: JP Tokyo
- 国际申请: PCT/JP09/01521 WO 20090401
- 主分类号: H02M3/335
- IPC分类号: H02M3/335
摘要:
In a power converting apparatus which converts AC power into DC power, an inverter circuit including at least one series-connected single-phase inverter is connected in a downstream of a stage in which an AC input is rectified in series therewith. In the downstream stage of the inverter circuit, there are provided a smoothing capacitor connected via a rectifier diode and a short-circuiting switch for bypassing the smoothing capacitor. The short-circuiting switch is set to an ON state only in each of short-circuiting phase ranges of which midpoint matches each of zero-crossing phases and an output of the inverter circuit is controlled by using a current command so that a DC voltage of the smoothing capacitor follows a target voltage and an input power factor is improved.
公开/授权文献
- US09197126B2 Power converting apparatus 公开/授权日:2015-11-24