Stability Analysis of Pump Turbine Regulating System Based On Hopf Bifurcation Theory

[摘要] In order to study the stability of the pumped storage power station system, a model of the pump turbine regulating system under turbine operating conditions is established in this paper. Hopf bifurcation theory is applied to analyze the dynamic characteristics of pump turbine regulating system with different loads, and the results of theoretical analysis are verified by simulation calculation. The results show that the range of the regulator parameters increases significantly with the increase of the load disturbances of the regulating system, but the shape and direction of the bifurcation curves are basically the same. The change of the PID parameters will cause the change of the topology of the nonlinear system.

[发布机构] Fujian Shuikou Power Generation Group Co. Ltd, Fuzhou, China^1;Anhui Xiangshuijian Pumped Storage Co. Ltd, Anhui, China^2;Hebei Zhanghewan Pumped Storage Co. Ltd, Hebei, China^3;College of Energy and Electrical Engineering, Hohai University, Nanjing, China^4

[效力级别] 材料科学

[关键词] Bifurcation curves;Dynamic characteristics;Hopf bifurcation theory;Operating condition;Pumped storage power station;Regulating systems;Simulation calculation;Stability analysis