发明名称 |
Frequency converters |
摘要 |
In a frequency converter of the type including a polyphase inverter which produces polyphase alternating current inherently containing higher harmonic components, a plurality of polyphase inverters are operated with a predetermined phase difference and the outputs thereof are sythesized by polyphase transformer means so as to eliminate higher harmonic components of relatively low orders, particularly the fifth and seventh higher harmonics.
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申请公布号 |
US4225914(A) |
申请公布日期 |
1980.09.30 |
申请号 |
US19780940317 |
申请日期 |
1978.09.07 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
HIRATA, AKIO;SAITO, SUZUO |
分类号 |
H02M5/44;(IPC1-7):H02M5/25 |
主分类号 |
H02M5/44 |
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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