发明名称 |
SERIES COMPENSATOR INTRODUCING ACTIVE AND NO-LOAD IMPEDANCES IN AN ELECTRIC POWER SYSTEM IN ORDER TO ATTENUATE POWER OSCILLATIONS |
摘要 |
A series compensator for damping power oscillations in an electric power transmission system includes a switching power converter which injects a voltage into the transmission line having a phase angle relative to transmission line current which is controlled to provide reactive compensation and to inject virtual real impedance into the line. The switching power converter is a dc to ac converter which is capable of injecting virtual real impedance into the transmission line by virtue of the fact that it has a power exchange device connected to its dc terminals. Where the power exchange device is a resistor, the switching power converter is capable of absorbing real power during surges in power on the line. Alternatively, the power exchange device is a storage device such as a battery bank or a super conducting magnet, in which case the switching power converter can provide both virtual positive and negative real impedance. |
申请公布号 |
CZ9702057(A3) |
申请公布日期 |
1997.11.12 |
申请号 |
CZ19970002057 |
申请日期 |
1995.12.14 |
申请人 |
WESTINGHOUSE ELECTRIC CORPORATION |
发明人 |
GYUGYI LASZLO;SCHAUDER COLIN D. |
分类号 |
H02J3/18;G05F1/70;H02J3/24;(IPC1-7):H02J3/24 |
主分类号 |
H02J3/18 |
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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