基于一致性算法的直流微网多储能SoC均衡策略

针对含有多个储能单元的孤岛型光储直流微电网，提出一种基于一致性算法的多储能荷电状态均衡策略。在改进下垂控制中采用了一种事件触发控制下的平均一致性算法，各分布式储能单元只需在满足事件触发条件时与相邻单元通信，即可实现储能单元间的荷电状态均衡。通过该策略可提高系统不同容量储能单元间的电流分配精度；实现荷电状态均衡和维持母线电压的稳定，在保证控制性能的同时有效减少通信次数。在Matlab/Simulink中搭建仿真模型，仿真结果验证了所提策略的有效性。

State of Charge Equalization Strategy of Multi-energy Storage in DC Microgrid Based on Consensus Algorithm

A state of charge （SoC） equalization strategy of multi-energy storage system based on consensus algorithm is proposed for independently operating islanded optical storage DC microgrids containing multiple energy storage units.The average consistency algorithm of event-triggered control is used in improved droop control，each distributed energy storage unit （DESU） only needs to communicate with adjacent DESUs when the event-triggered mechanism is met to achieve SoC equalization. The system can improve the current distribution accuracy of different capacity storage units through this strategy，achieve SoC equalization and maintain the bus voltage stability，reduce the communication demand effectively while ensuring the control performance. The simulation model is set up in Matlab/Simulink，the simulation results verify the effectiveness of the the proposed strategy.