Design And Implementation Of Operation Monitoring And Energy Management System In Microgrid

Present,large-scale distributed generation access to distribution network has brought new challenges to the operation control,protection and management of scheduling.The concept of microgrid proposed provides a new model for the using the distributed energy.It has flexible operation mode and schedulable performance,and can realize self control,protection and energy management.Above all,this paper firstly studied microgrid operation mode,characteristics and its relationship with the large grid.Then analyzed the structural composition and operation control theory of microgrid,and summarized the advantages and disadvantages of control structure at different application areas.On this Basies,the Ethernet technology and modbus bus technology has been used to build the communications network.Network structure and hierarchical information interaction system of microgrid were designed.According to the structure and operational control characteristics of microgrid,Front Communication Module was developed for providing a information bridge between the monitoring layer and the device layer.It can solve the problem of intelligent device is difficult to communicate with each other between different protocols,implementing plug and play in microgrid.Shared memory and ADO technology are used to design and develop the real-time data service module and historical data service module.It can provide data support for microgrid monitoring applications,and realize the general information storage and micro grid interaction.Take maximizing microgrid operating earning as the objective,established an microgrid energy management optimization model,using genetic algorithm to solve the model.By analysising the example,the effectiveness of the proposed model and method was validated.