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针对四川电网关于并网电厂辅助服务考核细则,分析了二滩电厂机组参与辅助服务后所受的影响,主要从设备运行健康水平与直接经济损益两方面进行。指出二滩机组参与辅助服务应以更务实的态度对待,而不要单为辅助服务补偿而不顾机组健康运行水平带来的间接经济损失,更不能只为旋转备用补偿而浪费水能,造成得不偿失的后果。一方面以二滩机组参与辅助服务后按AGC运行给机组带来的损失与不参与而按计划负荷运行对比得出参与辅助服务带来的不利影响,另一方面以机组耗水测试数据得出机组耗水特性曲线,在此机组上进行几个典型时期的计算,得出各自损益分界点,进而得出大部分时间由于旋转备用的存在而对经济运行带来的不利影响。结论可以用于二滩机组实际运行方式的指导,具有一定的实践意义。
Aiming at the assessment rules of auxiliary service for grid-connected power plants in Sichuan Power Grid, the impact of participation of auxiliary units in Ertan Power Plant is analyzed, mainly from the aspects of equipment health and direct economic profit and loss. It is pointed out that Ertan units should take a more pragmatic approach in participating in ancillary services instead of subsidizing for service alone and neglecting the indirect economic losses caused by the healthy operation level of the units and not only wasting water energy for rotating standby compensation, as a result of. On the one hand, Ertan crew participation in auxiliary services by AGC run to the crew losses and non-participation according to the planned load operation compared to draw the participation of ancillary services adverse effects, on the other hand to the unit water consumption test data Unit water consumption characteristic curve, in this unit for several typical periods of calculation, draw their respective points of profit and loss, and then come to most of the time due to the existence of spin-reserve adverse economic operation. The conclusion can be used to guide the actual operation mode of Ertan unit, and has certain practical significance.