发明名称 |
ASSESSMENT OF POWER SYSTEMS |
摘要 |
The present invention relates to a method for assessment of a power system and an early warning system for a power system, the method being based on aperiodic small signal instabilities. The power system has a plurality of generators comprising one or more synchronous machines and is represented by a plurality of nodes of power injection, injecting power into a network having a plurality of nodes and branches. The method for assessment of the power system comprises determining a present state of the power system, calculating system Thevenin impedances from each node of power injection in the power system on the basis of the determined present state of the power system, calculating injection impedances from each node of power injection in the power system on the basis of the determined present state of the power system, determining a stability boundary for each generator based on the calculated system Thevenin impedances and the calculated injection impedances. Also a method of early warning for a power system is disclosed. |
申请公布号 |
US2014343881(A1) |
申请公布日期 |
2014.11.20 |
申请号 |
US201214123135 |
申请日期 |
2012.05.30 |
申请人 |
Jóhannsson Hjörtur |
发明人 |
Jóhannsson Hjörtur |
分类号 |
G01R21/06;G01R21/133 |
主分类号 |
G01R21/06 |
代理机构 |
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代理人 |
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主权项 |
1. A method for assessment of a power system generator, the power system having a plurality of generators injecting power into a network having a plurality of nodes and a plurality of branches, the plurality of generators comprising one or more synchronous machines and being represented in the network by a plurality of nodes of power injection, the method comprising:
determining a present state of the power system, calculating system Thevenin impedances from each node of power injection in the power system on the basis of the determined present state of the power system, calculating injection impedances from each node of power injection in the power system on the basis of the determined present state of the power system, determining a stability boundary for each generator based on the calculated system Thevenin impedances and the calculated injection impedances. |
地址 |
Reykjavik IS |