微电网孤岛运行下垂控制分析及仿真  

Analysis and simulation for droop control in islanded operation of micro-grid

作　　者：李冶[1] 

机构地区：[1]贵州电网公司,贵州贵阳550002

出　　处：《贵州电力技术》2014年第3期8-9,共2页Guizhou Electric Power Technology

摘　　要：微电网一般有并网和孤岛运行,并网运行一般采用功率解耦控制,其网络电压和频率由大电网决定,而孤岛运行时,网内电源决定微电网的电压和频率。由于一次能源波动和负载波动,为了维持微电网电压和频率稳定,采用电压频率下垂控制,分析了下垂控制的基本理论,给出应用下垂控制的微电网仿真波形。The micro-grid had two operation modes： islanded operation and grid-connected. The power decouple control had been adopted in grid-connected. The voltage and frequency were determined by power grid. When the operation status was islanded, the voltage and frequency were determined by the power source. Due to the fluctuation of energy resource and load, to maintain the voltage and frequency stability, the voltage frequency droop control had been used. The paper had analyzed the basic theory of droop control and given the simu- lation wave of droop control for micro-grid.

关 键 词：孤岛运行 下垂控制 微电网 分布电源 

分 类 号：TM74[电气工程—电力系统及自动化]