基于一致性算法的独立微网分布式电压恢复控制方法

Distributed Voltage Restoration Control Method for Independent Microgrid Based on Consistency Algorithm

针对微网独立运行模式下,传统下垂控制带来的电压偏移问题,提出一种基于一致性算法的微网电压恢复控制方法,该方法将微网电压控制转化成一个一阶线性跟踪问题,通过实现电压的同步跟踪来消除由传统下垂控制带来的电压偏移,并且在控制器中加入修正因子,以提高追踪精度。该方法与集中分层控制相比,控制系统中没有中央控制器,并采用稀疏通信网络的形式可提高系统运行可靠性。通过在Matlab/Simulink仿真软件中搭建仿真验证了该方法的有效性。

Aiming at the voltage offset caused by traditional droop control in microgrid independent operation mode, a novel voltage recovery control method based on consistency algorithm is proposed. This method converts microgrid voltage control into a first-order linear tracking problem, and eliminates the voltage offset caused by traditional droop control by synchronous voltage tracking, and a correction factor is added to the controller to improve tracking accuracy. Compared with centralized hierarchical control, this method does not have a central controller in the control system, and the reliability of the system can be improved by using sparse communication network. The validity of the method is validated by building simulation software in Matlab/Simulink.