Operation Optimization Of Industrial Microgrid Considering Thermal Load

With the energy crisis and the environmental pollution is increasingly serious,all kinds of renewable energy has gradually stepped into the sight of people.In order to make better use of renewable energy and improve the efficiency of energy utilization,the concept of microgrid is put forward.The load of industrial microgrid is large and the characteristics of power consumption are more obvious.Therefore,it is significant to study the operation optimization of industrial microgrid to improve the economic performance of the system.The existing optimal operation strategy is considered to adjust the output of the generator to meet the load demand of the factory,while ignoring the influence of the load on the operation optimization.And in this paper,we consider not only the renewable energy power generation in the industrial microgrid,but also the load adjustment of the microgrid into the optimization process,so that the load can participate in the operation optimization of the industrial microgrid.There are two kinds of load in the industrial microgrid:the electric load and the thermal load.In order to study the influence of the thermal load on the industrial microgrid operation optimization,the thermal load is divided into the production thrmal load and envirnmental thermal load,which is influenced by the environment.According to the classification of the electric load,the thermal load is properly divided.According to whether the load can be controlled during the operation,it can be divided into three categories:uncontrollable,semi controllable and fully controllable,and the corresponding mathematical model is established.In order to make the industrial microgrid operation in the economic optimum,the minimum cost of operation is taken as the goal.On the basis of conventional constraints,the electrical and thermal load related constraints are added in order to consider the effect of load in the process of operation optimization.Take the improved 18 node system as an example,and solve it using particle swarm algorithm.The simulation results show that taking the thermal load into consideration of the industrial microgrid operation optimization can further reduce the operation cost,and it will provide a reference for the operation of the industrial microgrid.