水电机组积分电量比率计算建模与分析OA

In power grids with a high proportion of new energy,the research on the primary frequency regulation capability of hydroelectric units has become a hot topic.In view of the deficiencies in the quantitative analysis of the primary frequency regulation capability of hydroelectric units,this paper,based on the assessment requirements of the"Two Rules"of China Southern Power Grid,constructs a simulation calculation model of the primary frequency regulation integral power ratio and incorporates it into the whole machine operation simulation system of hydroelectric generating units to establish the connection between the governor control unit and the integral power ratio.Taking a certain hydroelectric generating unit as an example,the influence of the structure and parameters of the governor control unit on active power and frequency regulation is analyzed,and the influence of the main parameters on the integral power ratio is simulated and analyzed.The results show that the frequency dead zone,power dead zone and droop coefficient Bp of the governor has no clear correlation with the integral power ratio,while the controller parameters Kp and Ki have a significant impact on the integral ratio.Therefore,the integral power ratio of the hydroelectric units can be effectively improved by optimizing governor control parameters,thereby enhancing its primary frequency regulation capability.