Research Multi Energy Complementary Optimal Scheduling And Algorithm Based On Microgrid

With the development of society and the progress of science and technology,people pay more and more attention to the problem of environmental pollution.Electric energy has become an indispensable part of people.Traditional power generation is mainly thermal power generation.Thermal power generation will emit a lot of polluting gases.Therefore,the research on environment-friendly new energy power generation is of great significance.In recent years,micro grid system based on new energy power generation has been proposed and developed rapidly.However,due to the micro grid system has not been improved,there are many problems,such as low utilization rate of wind turbine and photovoltaic power generation,excessive amount of wind and light abandonment,and high operation cost of micro grid.Aiming at a series of problems in the research process of microgrid system,this paper puts forward some improvement methods and optimization strategies to improve the existing problems of microgrid system.Firstly,this paper proposes the structure of multi energy complementary microgrid system,analyzes the distributed generation in microgrid system,and obtains the mathematical model of each distributed generation.This paper briefly introduces the energy management system of microgrid,which lays the foundation for the following research.Then,the cost analysis of each distributed unit is carried out,considering the economy and environmental protection.Finally,the objective function is the total cost of multi energy complementary micro grid system.Two kinds of intelligent algorithms are summarized respectively:genetic algorithm and simulated annealing algorithm.The hybrid algorithm is composed of two intelligent algorithms.The performance of the hybrid algorithm is compared with other algorithms after improvement,and the advantages of the improved algorithm are highlighted.The optimal scheduling strategy of islanding microgrid system is proposed.The improved algorithm is applied to the mathematical model.The simulation results are solved after optimal scheduling.The effectiveness of the algorithm is verified by the simulation example,and the optimal scheduling results of the islanding micro grid system are obtained.Finally,the optimal scheduling of grid connected microgrid system is analyzed.Considering the strategy of time of use electricity price,this paper puts forward four kinds of optimal scheduling under different operation strategies.Taking two kinds of different loads for simulation analysis,the optimal scheduling results under various strategies are obtained.The characteristics and advantages and disadvantages of the results under various strategies are compared,and the optimal scheduling research of grid connected microgrid system is completed.To sum up,this paper mainly analyzes the optimal scheduling of multi energy complementary microgrid in two operation modes of island and grid connection.At the same time,four strategies are proposed to optimize the scheduling of microgrid in grid connection operation,and the simulation results under various strategies are obtained,and the optimal scheduling results under various strategies are compared and analyzed.