Research On Control Method Of Economic And Environmental Optimal Operation Of Microgrid

The advantages of distributed power including: combining the renewable energy with new energy scientifically, the combination can be seen as a new theoretical support for the wide practical application of renewable energy and new energy connecting to the main grid. However, the advantages are just used by micro-grid. So micro-grid can achieve the rational utilization of different energy, but also can provide powerful support for the main grid. Above all, the stabilization of power supply can be realized and the quality of power supply is also improved. Distributed power and load can be integrated together effectively by micro-grid. In terms of main grid, micro-grid can be seen as a controllable system, it can supply reliable power for users. In order to achieve the result of the above, micro-grid and control system need to be scientific managed. The core of micro-grid and control system is the control center of micro-grid, it plays an immeasurable role in the study of the control system. At the same time, there are some hot spots and difficulties in the development of micro-grid. For example reasonable control of micro-grid system, so it is researched deeply by scholars.Economic operation of micro-grid and control strategy of micro-grid environmental protection optimization is studied in this paper. Firstly, the research status of micro-grid is described. At the same time, composition and control method of the micro-grid and strategies are expounded in this paper. Finally, the economic operation of micro-grid and control strategy of micro-grid environmental optimization is achieved. The principle of distributed power and function expression in the system is also detail instructed in this paper. On the other hand, several aspects including the fuel consumption, the cost of operation maintenance, depreciation cost, the cost of environmental protection and the system loss of micro-grid are analyzed, comprehensive function of micro-grid economic operation and environmental protection operation is obviously set up. Then improved particle swarm optimization algorithm based on membrane computing is applied on the operation of distributed power. Though the theoretical analysis, theoretical support is obtained for further research on micro-grid energy management. At the same time, combining membrane computing with particle swarm optimization algorithm(PSO) which weights can be adjusted automatically, a particle swarm optimization algorithm based on membrane computing with characteristics of adaptive mutation is achieved. Team working of controllable distributed power in system is scientific implemented by the algorithm, so the good economy and environment protection of micro-grid is highlighted. At last, through the combination of reliability and compensability, the different output of distributed power under different strategies is analyzed. Above all, the control strategies of micro-grid interconnection operation or island operation are concluded.