基于改进一致性算法的独立光储直流微电网电压稳定能量协调策略

An Energy Coordination Strategy for Island DC Microgrid With Photovoltaic and Storage System Based on Improved Consensus Algorithm

针对直流微电网的母线电压稳定,在多智能体一致性算法中加入了电压稳定函数,以运行成本最低为目标函数,结合功率平衡约束,提出一种小型光伏直流微电网的分布式能量管理策略。该策略具有较好的收敛性能,有效维持直流微电网的稳定。通过搭建直流微电网仿真模型,对仿真结果进行分析,验证了策略的有效性。

For bus voltage stability in DC microgrids,a voltage stability function for DC bus voltage is added to the multi-agent consensus algorithm.At the same time,taking the minimum operation cost of the controllable units as the objective function,combing with the conditions of power balance,a distributed energy management strategy for small photovoltaic DC microgrid is proposed to realize the optimal output of power.The distributed strategy has good convergence performance,which can effectively maintain the stability of DC microgrid.The simulation model of DC microgrid is built and the simulation results are analyzed to verify the effectiveness of the strategy.