Research On Microgrid Scheduling Model And Optimization Operation Strategy Based On Particle Swarm Optimization

In recent years,with the global environmental pollution problems and the energy crisis becoming increasingly prominent,people’s awareness of environmental protection and energy conservation have been continuously improved,making microgrids a hot topic in the field of power systems.Compared with the traditional large-scale power grid,the micro-grid has its own characteristics and advantages.The power generation process produces less pollutants,high power generation efficiency,low fossil fuel energy usage,and negligible power transmission losses.In the micro-grid engineering application,optimizing the micro-grid scheduling model has very important practical significance.The micro-grid operating cost is ultimately due to the use and maintenance of mechanical equipment.The long operating life of each mechanical equipment will reduce the cost accordingly.The optimization scheduling model can optimize the operation status of the user-side mechanical equipment while optimizing the use status of the distributed power supply equipment of the microgrid.The operational status of machinery and equipment is the inherent nature of economic costs.This paper studies the micro-grid considering the demand-side response and comprehensively considers the demand-side response,economic costs,and environmental costs to obtain the optimal micro-grid day-to-day dispatch model,making the supply side The demand side mechanical equipment operation status reaches the optimal state.In the smart grid,the power user is not only used as a power terminal,but also can participate in the optimal dispatching of the power grid.This paper establishes a demand-side response model to make full use of the power user’s initiative to change the user-side mechanical equipment usage.The distributed power supply in the microgrid is the energy support equipment of the whole system,which plays a decisive role.Based on the current domestic and foreign scholars’ research,this paper establishes the output model and cost model of each distributed power supply equipment,and comprehensively considers each equipment in the In the actual production process,various conditions are established to analyze the power generation principle and mechanical characteristics of each device.In the actual operation of the microgrid,there are two models of grid-connected operation and islanding operation.The power generation characteristics and priority selection of these two modes are not the same.Therefore,this paper considers the microgrid in grid-connected operation and isolated island operation mode respectively.Scheduling strategy.Particle swarm optimization algorithm is a heuristic intelligent algorithm.It has few control parameters,fast convergence rate,and strong search ability.However,it is easy to fall into local optimum.This paper optimizes and improves the particle swarm optimization algorithm to make it escape the local optimal trap and reach the global level.Optimal.Finally,the load of an area in our country was selected as an example to optimize the scheduling.Simulation results show that the optimization scheduling and strategy established in this paper are rational and scientific.