发明名称 |
Control system for an electric locomotive having AC to DC converters |
摘要 |
An electric locomotive has two AC-DC converters which are connected in cascade, and a power factor controller is connected to one of the converters. Two automatic pulse phase shifters are provided for the two converters and controlled by a signal responding to a difference signal between a current flowing in the converters and a reference signal. One of the input signals of the automatic pulse phase shifter is regulated by a bias signal. The output from each of the automatic pulse phase shifters to each of the converters is switched when the measured speed of the locomotive exceeds a predetermined reference speed signal.
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申请公布号 |
US4700283(A) |
申请公布日期 |
1987.10.13 |
申请号 |
US19860853552 |
申请日期 |
1986.04.18 |
申请人 |
HITACHI, LTD. |
发明人 |
TSUTSUI, YOSHIO;NAKAMURA, KIYOSHI;KIMURA, AKIRA;IMAI, HAYATO;TAMURA, KAORU;MIURA, SHOZUCHI |
分类号 |
B60L9/12;G05F1/70;H02M1/00;H02M1/42;H02M7/162;H02M7/757;(IPC1-7):H02M7/155 |
主分类号 |
B60L9/12 |
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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