闭环调节在解决一洞双机机组功率波动中的应用--以雅砻江锦东电站引水发电系统为例

摘要

The water diversion and power generation system of Jindong Hydropower Station, with large capacity, high head and"two units-one surge chamber", is described, especially the importance of closed-up control of hydro-generators power is fo-cused on. The main disadvantages of closed-loop control mode of the power are analyzed by taking account of the power regula-tion mode of governor system and monitoring system. The analysis involves the units operation condition and surge chamber fluc-tuation in the case of load shutdown of single hydro generator as well as units operation cases analysis under two modes of closed-loop and open-loop control. Furthermore, the improved measures are put forward in view of the main disadvantages of closed-loop control of the hydro-generators power of Jindong Hydropower Station.%介绍了锦东电站大容量、高水头、“一洞双机”引水发电系统，强调了锦东水轮发电机组功率闭环调节的重要性；结合锦东电站调速器、监控系统功率调节模式，分析了锦东机组功率闭环调节模式存在的主要不足。分析内容涉及：水力单元单机甩负荷后甩负荷机组运行工况与调压室浪涌波动分析；在闭环调节和开环调节两种模式下运行机组工况分析，以及针对锦东机组功率闭环调节模式存在的主要不足所提出的改进措施和建议等。可为其他类似机组功率闭环调节模式的设计及改进提供参考。