发明名称 |
POWER CONVERTING APPARATUS |
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. |
申请公布号 |
US2012014139(A1) |
申请公布日期 |
2012.01.19 |
申请号 |
US200913258055 |
申请日期 |
2009.04.01 |
申请人 |
YAMADA MASAKI;URAKABE TAKAHIRO;IWATA AKIHIKO;ITO NORIKAZU;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
YAMADA MASAKI;URAKABE TAKAHIRO;IWATA AKIHIKO;ITO NORIKAZU |
分类号 |
H02M3/335 |
主分类号 |
H02M3/335 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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