孤岛运行模式下的微网经济负荷分配

摘要

This paper studies the economical dispatch of the microgrid in the isolated mode; that is, how to optimize the generation of micro-powers under the system constraints so as to minimize the total target costs of the microgird. Firstly, an economical dispatch of the microgrid model is proposed. Then, the model is intensively studied with the improved particle swarm optimization (PSO) method. Finally, the economical dispatch of a small microgrid example is optimized with the proposed method, and the simulation results show the method is correct and effective.%研究了微网孤岛运行模式下的经济负荷分配问题,即在满足系统约束条件下如何优化微网中各微电源的出力,使微网的目标成本最小.建立了微网孤岛运行模式的经济负荷分配数学模型,然后采用改进粒子群优化算法对微网的经济负荷分配进行了研究.最后通过算例验证了数学模型与优化算法的正确性与自效性.