发明名称 |
Power converter for converting DC voltage into AC phase voltage having three levels of positive, zero and negative voltage. |
摘要 |
In an apparatus for a three-level DC/AC converter, the width of output pulses having the same polarity as the fundamental wave of the converter output phase voltage is adjusted depending upon the DC component of a differential voltage between two DC voltages in a dipolar modulation system of the converter. An imbalance of DC components between the two DC voltages is thereby easily and effectively suppressed. <IMAGE>
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申请公布号 |
EP0571755(A2) |
申请公布日期 |
1993.12.01 |
申请号 |
EP19930106382 |
申请日期 |
1993.04.20 |
申请人 |
HITACHI, LTD. |
发明人 |
TANAMACHI, TOKUNOSUKE;NAKATA, KIYOSHI;NAKAMURA, KIYOSHI |
分类号 |
B60L9/22;H02M7/48;H02M7/487;H02P27/14;(IPC1-7):H02M7/48 |
主分类号 |
B60L9/22 |
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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