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How to improve the certainty of voltage stability of a transmission system
How to improve the certainty of voltage stability of a transmission system
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机译:如何提高输电系统电压稳定性的确定性
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摘要
A method of locating enhancements for improving voltage stability security of an electric power transmission system having a plurality of buses and a plurality of sources of reactive reserves coupled thereto. The plurality of buses are grouped into a plurality of voltage control areas such that each of the buses within each voltage control area has a similar corresponding reactive power versus voltage relationship. A first voltage control area is determined for locating a first enhancement, wherein the first voltage control area exhibits therein a difference in internal reactive loss that exceeds a loss threshold. A second voltage control area is determined for locating a second enhancement, wherein the second voltage control area exhibits therein a difference in reactive reserves that exceeds a reactive reserve threshold. The first and second enhancements may include switchable shunt capacitors, synchronous voltage condensers, static var compensators, or a combination thereof. A third enhancement, which includes series capacitors, parallel lines, or a combination thereof, is located at interfaces between two neighboring voltage control areas determined to exhibit thereacross a difference in either reactive power flow or reactive power loss that exceeds a predetermined threshold.
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