Optimal Coordinated Control Of Microgrid Based On Hydrogen Storage

With the current energy pattern,renewable energy is developing rapidly,and energy deficiencies are also very obvious.At the same time as the capacity of wind turbines and solar assembly machines increase,the abandonment of wind and light and the impact on the stability of the power grid are concentrated.According to the prediction of the International Association,hydrogen energy will increase 10 times in 20 years,wind energy is still growing steadily and countries have adopted hydrogen energy as a strategic energy source.Chinese National Strategic Fourteenth Five-Year Plan states that the installed capacity of wind power will quadruple within 10 years.As hydrogen energy is a new type of fuel with zero emissions and pollution,the government also pointed out that "promoting the construction of charging and hydrogenation equipment." Combining development trends and energy complementarity,establish a micro-grid structure for wind turbines,solar cells,proton exchange membrane fuel cells,hydrogen production by hydrolysis,and hydrogen storage under gaseous pressure.Through the principle summary and modeling analysis of each component of the microgrid system,the effectiveness of the system in terms of energy composition and operation strategy is verified.For the grid energy requirements,combined with the operating characteristics of the microgrid unit and the system stability requirements,7 types of operation mode on-grid and 3 types of off-grid operation mode are proposed.The short-term predictive power regulation of wind power based on wind speed,the control strategy of microgrid control parameter optimization based on generalized prediction and optimization of hyd rogen energy revenue are given,and the effectiveness and reliability of the control strategy are verified by simulation.Based on the actual data of each part,the corresponding corresponding MATLAB model is established,and simulations are performed for various power conditions and different operating modes,which verify the adaptability and eff ectiveness of the controller’s parameters,and prove that the stability of the power grid can be improved under complex working conditions.And wind energy photovoltaics increase the utilization rate,meet the requirements for systems afety,and verify that the established microgrid control system energy management and control methods have theoretical research significance and engineering practical value.