发明名称 |
Control apparatus for a cycloconverter |
摘要 |
A control apparatus for a cycloconverter includes m sets of bridge converters connected between the input terminals of an m-phase load (m>/=3) and is applied for a cycloconverter of which the common connection point of the bridge converters is disconnected from a neutral point of the load. The output voltage of each bridge converter is controlled by a reference voltage signal during a 1/m period of one cycle of the load voltage. The center of the 1/m period is located at a positive or negative maximum amplitude point of the load voltage. The output voltage is also controlled during the remaining period of (1-1/m) by a phase control input signal corresponding to a difference between a reference current signal and the load current. The reference voltage signal and the phase control input signal are selected by switching signals from a logic circuit for detecting phase voltages of the load to alternately be applied to the phase control circuits.
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申请公布号 |
US4349867(A) |
申请公布日期 |
1982.09.14 |
申请号 |
US19810241100 |
申请日期 |
1981.03.06 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
OTSUKA, KENICHI;UCHINO, HIROSHI;NAKAJIMA, KIHEI |
分类号 |
H02M5/27;(IPC1-7):H02M5/25 |
主分类号 |
H02M5/27 |
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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