摘要
风电场因风速变化的不规律性将导致并网系统电压失稳。统一潮流控制器(UPFC)是柔性交流输电系统(FACTS)中功能最为全面的器件,能够维持风电场电压及并网系统的稳定运行。根据异步风力发电机的数学模型,以及UPFC的工作原理和控制策略,在DIgSILENT/PowerFactory中搭建了安装UPFC的风电并网系统模型,通过仿真风速突变时风电场的电压和功率情况。仿真结果表明,UPFC能够控制线路潮流,并能维持风电机组和系统的稳定。
The randomness of wind speed in wind farm may results in voltage instability of the grid system.As the most comprehensive device in FACTS,UPFC can maintain stable voltage of the wind farm and steady operation of the grid system.Based on the mathematical models of asynchronous wind generator and the operation principle and control strategies of UPFC,a model of UPFC wind generator grid system is built DIgSILENT/PowerFactory,to show the voltage and power condition of wind farm by means of simulating sudden change of wind speed.The simulation results indicate that UPFC can control power flow of transmission lines,and keep stability of wind-turbine generators and power system.
出处
《电气自动化》
2013年第3期74-76,共3页
Electrical Automation
基金
国家自然科学基金:51267017自治区高技术项目(201132116)
教育部重点项目(210244)
