分布式发电并联接入微网的控制技术研究综述

智能电网很重要的特点之一就是大规模接入清洁能源分布式发电,因此,加快发展这项技术很有必要.首先通过介绍智能电网,引出了其关键技术之一的微网技术,然后简要分析了系统结构及其控制策略,并对各种控制方法进行了比较,着重对主流控制方法进行了讨论,包括主从控制、电流/功率均分控制以及频率/电压下垂控制.最后,总结对比了各种方案的优劣并提出展望,逆变器控制技术的研究对智能电网的构建具有重要意义.

Review of Control Methods for Distributed Generation in Connection with Microgrid

One of the important features of smart grid is its large-scale access to distributed generation of clean energy. This paper, first of all, gives a brief introduction to smart grid and to the microgrid technology involved. It then briefly analyzes the system architecture and the control strategies by comparing various control methods. This paper presents an discussion on the main stream control methods, ranging from master/slave, current/power sharing control and frequency/voltage droop control. Finally, based on a summary of the advantages and disadvantages of different options, this paper concludes that the inverter control strategies are of great significance to construction of smart grid.