微电网二次频率/电压控制器的反馈线性化设计及分布式实现  

Design of secondary frequency/voltage controller with feedback linearization and distributed implemention in microgrids

作　　者：吴亮 刘庆楷 唐翀 刘明波[2] WU Liang;LIU Qingkai;TANG Chong;LIU Mingbo(Guangzhou Environmental Protection Investment Group Co., Ltd., Guangzhou 510330, China;School of Electric Power, South China University of Technology, Guangzhou 510640, China)

机构地区：[1]广州环保投资集团有限公司,广东广州510330 [2]华南理工大学电力学院,广东广州510640

出　　处：《电力系统保护与控制》2019年第14期79-86,共8页Power System Protection and Control

基　　金：国家重点基础研究发展计划(973计划)(2013CB228205)~~

摘　　要：针对以微型同步发电机组为二次控制主体的微电网,提出了一种在孤岛运行模式下的二次频率/电压分布式控制策略。首先,利用反馈线性化方法,设计了一种适用于微型同步发电机的二次频率/电压控制器,可消除由于微型同步发电机组一次控制导致的系统频率与电压偏差。其次,基于多代理系统理论,提出了一种分布式控制策略。所提出的频率/电压控制器只需要交换在通信有向图上的邻居节点频率/电压信息,不依赖中央控制器和复杂通信网络,提高了微电网的可靠性,同时可实现微型同步发电机有功出力按额定比分配。最后,在某一实际的微电网上验证了提出的二次控制策略的有效性。Aiming at the island microgird with micro-synchronous generator as the main sources of sencondary controls,a distributed secondary frequency/voltage control scheme is proposed.First,a feedback linearization method is used to design a frequency/voltage controller suitable for micro-synchronous generators,which can eliminate the frequency and voltage deviation caused by the primary control of micro-synchronous generators.Then,a distributed control scheme is proposed based on multi-agent system theory.The proposed frequency/voltage controller only needs to exchange the frequency/voltage and active power information with its neighbors,which is independent of the centralized controller and complex communication networks and improves the reliability of the microgrid.Meanwhile,the active power outputs of micro-synchronous generators can be allocated according to their rated ratios.Finally,the effectiveness of the proposed secondaty control scheme is verified on a real microgrid.

关 键 词：孤岛微电网 频率/电压二次控制 反馈线性化 分布式控制 

分 类 号：TM341[电气工程—电机]