Research On Design And Operation Control Of Microgrid System Based On Wind Generation

The rapid development of human society and economy has consumed a large number of non renewable energy such as ore fuel.As a result,more and more applications have been made for wind and solar energy distribution.The microgrid can solve the influence of distributed generation to the power grid,improve the reliability and security of the system power supply,and have a broad application prospect.The microgrid system built in this paper integrates wind power generation unit and energy storage unit,and ensures the stable operation of microgrid through the corresponding control strategy.It can connect to the grid and run off the network,providing continuous power supply for the system load.In this paper,a micro grid system based on hydraulic power generation and battery energy storage is taken as the research object.The operation control method of microgrid system is studied,and the operation stability of microgrid system is improved.The main contents are as follows:First of all,from the perspective of the structure and operation mode of microgrid system,according to the current development needs,a distributed wind storage microgrid system is constructed,and the power supply system structure,wind power generation unit and energy storage unit are designed.Secondly,the operation control mode of micro grid and the control strategy of distributed micro source are analyzed,and the operation control method under each mode is proposed for the constructed microgrid system.The topology and bidirectional inverter function of energy storage bi-directional inverter are studied.The modeling and analysis are carried out.The P/Q and V/F control in the system are modeled and simulated.The correctness of the control method is verified by simulation.Finally,in order to solve the stability of microgrid system in operation,a comprehensive operation control strategy based on load balance optimization is put forward.Based on MATLAB/Simulink,a micro grid system model based on wind power generation is built,and the simulation of different operation modes of microgrid is carried out.The results confirm the effectiveness and correctness of the control strategy of the system in the different circumstances of the microgrid based on the wind power generation,so as to ensure the stability and reliability of the operation of the wind storage microgrid system,and improve the power quality.