基于通信网络的直流微网分布式协同控制  

Distributed Cooperative Control of DC Micro Grids Based on Communication Networks

作　　者：杨燕华 曼苏乐[1] Yang Yanhua;Muhammad Mansoor Khan(Department of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电气工程系,上海200240

出　　处：《电气自动化》2018年第5期34-36,共3页Electrical Automation

摘　　要：电压调节和功率平衡是直流微网的两个主要控制目标。为了实现这两个控制目标,对传统的下垂控制方案进行提高,提出一种基于通信网络的分布式协同控制方案。本地控制器由一个电流内环控制和一个电压外环控制组成。根据系统中各节点的平均电压以及电流差,协同控制器产生一个电压修正量以调节本地控制器的参考电压值。方案简化了本地控制器,降低了通信延时的影响并提高了系统的可拓展性。最后,通过MATLAB/Simulink仿真试验验证了方案的性能。There are two main control objectives for the DC microgrid： voltage regulation and power balance. In order to realize these two objectives,a distributed cooperative control scheme based on communication network was proposed to improve the conventional droop control method. The local controller consisted of a current inner loop and a voltage outer loop. According to the average voltage/current difference among system nodes,the cooperative controller generated a voltage increment to adjust the reference voltage of the local controller. This scheme simplified the local controller,reduced the influence of communication delay and improvedsystem expansibility. Finally,MATLAB/Simulink simulation verified the performance of the proposed scheme.

关 键 词：直流微网 电压调节 功率平衡 通信 分布式协同控制 

分 类 号：TM712[电气工程—电力系统及自动化]