Wind Farm Economic Operation

At present,the wind power is involved in the operation of grid dispatching and the low efficiency is becoming more and more serious with the introduction of parity policy in order to ensure smooth operation to meet the requirements of the power grid,reducing the operating cost of wind farms is an important development direction of wind farm operation technology in the future to improve the efficiency of Reducing the loss of wind field becomes the key technology to realize the economic performance of wind farm.In this paper,a series of researches focusing on the precise analysis of the basic operation of the wind farm and the economic target active reactive power control are carried out to focus on the two research work.The details are as follows:(1)Studied the research results and future research directions of domestic and foreign experts and scholars in the direction of the economic operation of wind farms,the contents and specific principles of active control and reactive power control of wind farm are elaborated.(2)In view of the problems appearing in the current analysis of wind farm electric field,this paper analyzes the relevant indexes of field electricity from the point of view of procedure and Standard,and then finds the wind by statistic analysis.Two characteristics of electric field power consumption.Finally,according to these characteristics,an improved field electric Power Index is proposed to solve the problem of power supply fluctuation.(3)Based on the field data,a calculation model is established to obtain the important basic data of active loss and reactive loss of the whole field when the wind farm is in normal operation.Through data analysis,the reactive region balance strategy of wind farm with different power margin is proposed to effectively reduce the cost of reactive power control in wind farm.(4)Wind farms in the process of dispatching the wind power grid,low efficiency of the situation is becoming increasingly serious.The key to realize the economic operation of the wind farm is to increase the wind farm power generation efficiency and reduce the loss of the wind farm with the dispatching instruction.In this paper,a novel active power optimization strategy is proposed,which is based on the economy of wind farm.Firstly,the wind turbines are dynamically classified according to the unit status information collected by the wind farm monitoring system.Then,the unit control strategy should be planned,under the consideration of the feed-in tariff and power loss.The subjective and objective weighting method and Particle Swarm Optimization(PSO)are used to weight and rank the priority of the control strategies,and carry on the power control.The simulation results show that the proposed control strategy can effectively increase the economic efficiency of wind farm and reduce the power loss.