论文部分内容阅读
在考虑流道系统弹性水击、水轮机非线性特性的前提下,建立了水电站功率调节模式下过渡过程数学模型.进行了功率调节、开度调节下机组增全负荷过渡过程对比计算与分析,并探讨了调速器参数、开环放大系数对过渡过程的影响.结果表明:不设调压室水电站的机组增负荷,分别采用上述2种调节模式,过渡过程结果差别甚微;而设调压室的水电站,采用功率调节模式计算结果偏于危险;调速器参数对功率调节品质无明显影响,开环环节放大系数K值对功率调节动态过程影响较大.
Taking into account the elastic water hammer of runner system and the nonlinear characteristics of hydraulic turbine, a mathematic model of transient process in power regulation mode of hydropower station is established. Comparing and analyzing the process of full load transition of power plant under power regulation and opening regulation, The effects of governor parameters and open-loop amplification factor on the transition process are discussed.The results show that the above two kinds of regulation modes are adopted respectively without any increase of generating units in the hydropower station of the surge chamber, and the results of the transition process are slightly different. In the hydropower station, the calculation result of power regulation mode is more dangerous than that of power regulation mode. The governor parameters have no obvious influence on the quality of power regulation. The amplification coefficient K of open loop has a great influence on the dynamic regulation of power regulation.