Research On Source-load Coordinated Strategy Of Reducing Grid Loss With Large-scale Wind Power Integration

With the wind power integration of China’s grid increasing,power of the grid transmission channel becomes heavier,the increasing trendency of system loss is more and more obvious,the traditional method of reducing loss is difficult to reach the ideal effect.The research shows that the main problem of increasing loss when large scale wind power is accessed to the grid is the fluctuation characteristic of large scale wind power and long distance transportation.Beca use the high load possess good adjustable characteristics and interruption characteristics,load-source coordinated control with high load participating can consume wind power locally,reduce transmission power and amplitude of large-scale wind power fluctuations to reduce grid loss.Therefore,it is of great theoretical and practical significance to study the load-source coordinated control strategy when large scale wind power is accessed to the gird.On the basis of the above,the paper then studies the load-source coordinated control optimal method at day scale and hour scale.Based on the above research,the paper puts forward the load-source coordinated control optimal mode at day scale and hour scale.Combined with the load-source coordinated control optimal method at day scale and hour scale,the load-source coordinated control strategy at day scale and hour scale are respectively formed.Finally,Gansu hexi grid is taken as an example to prove the feasibility and effectiveness of the proposed load-source coordinated control strategy.