Abstract: Economic optimal operation of micro-grid is a significant direction of micro-grid research. In order to realize the comprehensive optimization of distributed generation-grid-loads of micro-grid, the resources including power supply side and demand side are fully considered with combination of the transferable load model under demand response and the economic optimal operation model of micro-grid in this paper, the chaotic firework algorithm (C-FWA) is used to optimize the load of demand side and the active power output of the power supply side synthetically, and the validity and feasibility of C-FWA for solving this type of problem are verified. The simulation results show that the economy of the micro-grid system is improved when the resources of power supply side and the demand side are fully taken into account, and the roles of peak clipping and valley filling are played in grid-connected operation mode. 

Key words: Micro-grid, optimal economic operation, demand response, transferable load, chaotic firework algorithm 

摘要： 微电网经济优化运行是微电网研究的重要方向。本文为了实现微电网源-网-荷的综合优化，充分地考虑了微电网中的电源侧资源和需求侧资源，结合需求响应中的可转移负荷模型与微电网经济优化运行模型，采用混沌烟花算法(C-FWA)对微电网中需求侧负荷与电源侧有功出力进行综合优化，验证了该算法求解此类问题的可行性和精确性。仿真结果表明，当充分考虑电源侧资源与需求侧资源时，微电网系统运行的经济性有所提高，并且在并网运行方式下充分发挥了“削峰填谷”的作用。

关键词: 微电网, 经济优化运行, 需求响应, 可转移负荷, 混沌烟花算法