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发电耗水率是衡量水电站经济运行情况的重要指标,主要影响因素有水头、机组出力、振动区等。在理论上分析耗水率的影响因素,结合二滩历史运行数据对比分析1、2号尾调室水位,以不同水位下总过机流量最小为目标函数,从有效提高利用发电水头的角度,研究3、4、5台机的经济运行组合方式,为机组经济运行有效降低机组耗水率提供参考依据,提高机组经济运行水平。
Power generation water consumption is a measure of the economic operation of hydropower stations an important indicator of the main influencing factors are head, unit output, vibration and so on. In theory, the influencing factors of water consumption rate are analyzed. Combining with the historical data of Ertan, the paper analyzes the water level of Tailrace Room No.1 and No.2, and takes the minimum total flow rate under different water level as the objective function. From the perspective of effectively increasing the power head, Studying the combination of economic operation of 3, 4, 5 sets of machines, provide a reference basis for unit economic operation to effectively reduce unit water consumption, and improve unit economic operation level.