风光蓄交流微电网的控制与仿真  

Control and Simulation of Wind-PV-Battery AC Microgrid

作　　者：韩肖清[1] 曹增杰[1] 杨俊虎[1] 韩雄[1] 

机构地区：[1]太原理工大学电气与动力工程学院,太原030024

出　　处：《电力系统及其自动化学报》2013年第3期50-55,共6页Proceedings of the CSU-EPSA

基　　金：国家国际科技交流与合作专项(2010DFB63200)

摘　　要：为了对微电网控制策略以及DG输出功率变化对微电网运行的影响进行深入研究,利用Matlab/Simulink仿真软件建立了风、光、蓄交流微电网仿真系统,在该系统中,蓄电池储能装置采用V/f控制策略,以维持微电网孤岛运行时的电压和频率的稳定;风力发电单元和光伏发电单元采用PQ控制策略,以获取可再生能源的最大利用率。仿真结果表明,在孤岛和联网两种模式下,采用该控制策略的微电网能向用户不间断的供应电力,并且模式切换过程稳定可靠。To research the control strategy of the microgrid and the impacts of the DG power change on the operation of the microgrid, a wind-PV-battery AC microgrid system is established by the Matlab/Simulink software. Different control strategies are designed for the different DGs. For battery energy storage device, V/f control strategy is used to ensure the stability of the voltage and frequency of the microgrid. For wind power generation unit and PV power generation unit, PQ control strategy is used to obtain the maximum utilization of the renewable energy. Simulation results show that the microgrid which uses these control strategies can supply power to users uninterruptedly both in islanded mode and grid-connected mode, and the switchover process is stable and reliable.

关 键 词：微电网 孤岛模式 联网模式 PQ控制 V/F控制 

分 类 号：TM76[电气工程—电力系统及自动化]