发明名称 |
Circuit arrangement for attenuation of power oscillations in networks |
摘要 |
A circuit arrangement, for deriving, from sensed power variations in a network, a signal for supplying the exciter of at least one synchronous machine coupled to the network, includes first and second vector identifiers, each providing a direct and phase-shifted output with each of the outputs coupled through an impedance matching amplifier to a summing junction. The direct signal from the first vector identifier and phase-shifted signal from the second vector identifier are conducted to one summing junction and the phase-shifted output of the first vector identifier and direct output of the second vector identifier to a second summing junction, with the outputs of the two summing junctions summed at a further summing junction after being coupled through additional impedance matching amplifiers to result in a total signal at the output of the third summing junction which varies in a mathematically positive sense with increasing oscillation frequency.
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申请公布号 |
US4292580(A) |
申请公布日期 |
1981.09.29 |
申请号 |
US19790098896 |
申请日期 |
1979.11.30 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
OTT, GUENTHER;KAUFHOLD, WOLFGANG |
分类号 |
H02J3/24;H02P9/10;H02P9/14;(IPC1-7):G05F5/00 |
主分类号 |
H02J3/24 |
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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