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对交直流混合微电网中电源进行优化配置能够减少换流损耗,降低系统成本。针对独立交直流混合微电网特有的结构和能量流动方式,考虑能量传输效率,提出了改进的能量管理策略。优化配置模型以经济性最优为目标,综合考虑环保性和供电可靠性,采用改进的人工蜂群算法对模型进行求解,得到独立交直流混合微电网的分布式电源优化配置结果。最后,通过算例进行仿真验证,结果表明,交直流混合微电网相对于纯粹交流微电网和直流微电网能够降低系统运行成本,使用改进后的能量管理策略能得到经济性更优的微电网电源配置方案。
Optimizing the power supply in the AC / DC hybrid microgrid can reduce the commutation loss and reduce the system cost. Aiming at the peculiar structure and energy flow of independent AC-DC hybrid microgrid, an energy management strategy is proposed considering energy transfer efficiency. Optimal allocation model aims at the optimal economy. Considering the environmental protection and reliability of power supply, the improved artificial bee colony algorithm is used to solve the model, and the optimal configuration of distributed generation for independent AC / DC hybrid microgrid is obtained. Finally, an example is used to verify the simulation results. The results show that the AC / DC hybrid microgrid can reduce the system operating cost compared with the pure AC microgrid and the DC microgrid, and the improved energy management strategy can obtain a more economical microgrid power supply Configuration.