Wind Power And Pumped Storage Interconnect System Coordinated Control

In numerous new clean energy sources, wind energy as a kind of renewable energy which has a very substantial amount and wide application prospect will occupy a pivotal position in the future energy structure. Pumped storage has advantages such as a quick response to load changes, flexible adjustment, peak shaving, valley fill and emergency reserve running performance. So a coordinated operation of the wind power and pumped storage power station can indirectly connects wind power to the grid. Excess wind power is converted into water energy and storage, improving the utilization of wind energy while reducing the impact of large proportion of wind power on the grid stability. Wind energy resources get maximized development and utilization. This paper focuses on the following areas aiming to coordinately control wind power and pumped storage interconnected system.(1) Briefly described the research background, significance and basic concepts of wind power and pumped storage interconnection system. And made a detailed presentation of the current status of research scholars on the wind power and pumped storage interconnected system(2) Mathematical model for wind power and pumped storage interconnect systems was introduced. Mathematical models include wind turbine, shaft, variable pitch control and asynchronous generator.Pumped storage systems were on the mathematical model of synchronous generator turbine model and the model introduced.(3) Single wind power infinite system of pitch angle control used TS fuzzy static error tracking control and the TS fuzzy robust H∞control, and then a different number of fuzzy local sub-models were compared. Control effectiveness of the single wind turbine pitch infinite system was supported separately by a combination of TS fuzzy control with no-steady-state error tracking control and robust H∞pitch control.(4) Studied the coordinated control hydro water gate opening control and water gate opening and the excitation using linear optimal control combined with ideological TS fuzzy control to achieve water gate opening control, and coordination control of water gate opening and the excitation, and the traditional linear optimal control of a small perturbation and large disturbance comparative simulation study was supported by a combination of TS fuzzy control to control the effect of linear optimal control in the static stability and transient stability should be significantly better than the traditional linear most excellent control.(5) Studied wind power and pumped storage interconnected systems multivariable coordinated control. After linear processing in the interconnected nonlinear system, respectively using the TS fuzzy static error tracking control and TS fuzzy robust control.Respectively under different scenarios of wind small perturbations and large disturbances were compared.Simulation study showed that the effect of TS fuzzy robust H∞control was significantly better than the TS fuzzy no-steady-state error tracking control on the static stability and transient stability.