（1 Jiangsu Acrel Microgrid Research Institute Co., Ltd, Jiangyin 214432, China;
Abstract: The optimal dispatch of microgrid is an indispensable part of smart grid optimization, which is of great significance to reduce electricity costs of enterprises, energy consumption and environmental pollution. In this paper, the distributed power supply covering photovoltaic,wind power, energy storage, gas turbine and diesel generator is studied. In the case of grid-connected operation of microgrid, in order to coordinate the output of various micro power sources in the system, the photovoltaic power generation, wind power generation and electricity load power are predicted, and the objective function with the lowest operating cost and pollution control cost is established. The Improved Aquila Optimizer (IAO) algorithm is used to solve the problem to obtain the output of different distributed generators and large power grids. The simulation results show that the model can effectively reduce the electricity cost and pollutant emission of enterprise users to a certain extent under the condition of ensuring continuous power supply for users, and provide guidance for the power allocation of microgrid in actual operation.
Key words: microgrid; multi-objective; improved aquila optimizer algorithm; optimal dispatch
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