Research on self-excited oscillation happened in a complex pipe system of a pumped storage power station
Research on self-excited oscillation happened in a complex pipe system of a pumped storage power station
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发表时间：
2007
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通讯作者：
Ye Fumeng
中科院分区：
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作者：
Ye Fumeng
某抽水蓄能电站发生振荡事故，为了分析事故原因，进行了地球仪阀密封开启和启闭试验，采用阻抗法和特征线法对试验进行了数值模拟，模拟结果与实测数据吻合较好，验证了数值模型的正确性，分析了振动事故的原因，为研究和分析该阀的启闭和启闭特性提供了依据防止或消除抽水蓄能电站多机输水系统的自激振荡。
Oscillation accident has happened in a pumped storage power station.In order to analyze the cause of the accident,an experiment of opening and gating the globe valve seal is carried out.Impedance method and characteristics method is adapted to simulate this experiment.The numerical simulation result is close to the measured data.The validity of the numerical model and the cause of the oscillation accident is proved.This study provides the foundation to prevent or eliminate the self-excited oscillation in multi-machine conduit system of pumped storage power stations.