发明名称 |
SERIES COMPENSATOR INSERTING REAL AND REACTIVE IMPEDANCE INTO ELECTRIC POWER SYSTEM FOR DAMPING POWER OSCILLATIONS |
摘要 |
A series compensator (11) for damping power oscillations in an electric power transmission system (1) includes a switching power converter (13) which injects a voltage into the transmission line (5) 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 (13) 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 (27) connected to its dc terminals (29). Where the power exchange device (27') is a resistor (37), the switching power converter (13) is capable of absorbing real power during surges in power on the line (5). Alternatively, the power exchange device (27) is a storage device (31) such as a battery bank or a super conducting magnet, in which case the switching power converter (13) can provide both virtual positive and negative real impedance. |
申请公布号 |
CA2209225(A1) |
申请公布日期 |
1996.06.20 |
申请号 |
CA19952209225 |
申请日期 |
1995.12.14 |
申请人 |
WESTINGHOUSE ELECTRIC CORPORATION |
发明人 |
SCHAUDER, COLIN D.;GYUGYI, LASZLO |
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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