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通过分析南椰2水电站进相运行的原因,并提出水轮发电机进相运行能力的计算方法,以及建立发电机组接入电力系统的等值模型及简化电路,推导出发电机机端电压、发电机功角的理论计算表达式;采用解联立方程计算出发电机在各种典型出力下的理论允许进相功角。此方法计算结果在现场进相试验中得到验证。
Based on the analysis of the reasons for the phase-in operation of Nanye-2 hydropower station and the method for calculating the phase-in capacity of hydro-generator, the equivalent model of generating unit connected to the power system and the simplified circuit are established. The generator terminal voltage, The theoretical calculation expression of machine power angle is used to calculate the theoretical allowable phase angle of the generator under various typical outputs by using the simultaneous equations. The calculation results of this method are verified in the field phase experiment.