摘要
为了提高含风力机-微型燃气轮机混合系统HS(Hybrid System)的微网稳定运行能力,文中在典型微网结构下,通过分析HS电源特点、控制方式和运行特性,归类划分不同运行区域下微网的运行特性和适用控制方式,并结合微网存在的联网与孤岛运行状态,制定了HS系统中不同电源的控制策略,最后进行了仿真分析。结果表明:微网控制策略受HS运行状态、控制方式以及负荷水平影响,正确分类判断微网运行方式,合理安排HS系统控制策略,能够实现联网及孤岛状态下微网系统的稳定运行,保障重要用户正常供电。
To improve the stability of micro-grid,the structure of hybrid system with wind turbine and micro-turibne is adopted in this paper.The characteristics,control strategies and operation modes of the hybrid system are analyzed with typical micro-grid sturcture.The application of the micro-grid under different areas is summarized for grid-connected and islanded mode,and control strategies respectively for different DGs are given.Simulation results of the micro-grids show that the control strategies for the micro-grid are influenced by the operation modes of the hybrid system and the load level.Micro-grid can operate stabily by sorting and judging the operation modes of the micro-grid correctly.Reasonable control strategies can improve the reliability for critical loads.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2010年第6期104-108,共5页
Proceedings of the CSU-EPSA
关键词
混合系统
微网
控制策略
联网
孤岛
hybrid system（HS）
Micro-Grid
control strategy
grid-connected
Islanding
