摘要
在微电网与大电网相互补充、共同发展的趋势下,电压暂降、瞬时停电等电能质量问题对于只含有若干发电机的微电网来说显得非常严重,因此储能系统在微电网中的应用是非常必要的。比较当前各种储能技术,超级电容器储能系统(SCES)具有快速反应、高功率输出、高效率等优点。分析了SCES的基本原理,建立了SCES模型,并在PSCAD仿真软件中搭建了适于分析的微电网模型,针对不同情况进行了详细的仿真试验。仿真结果表明,SCES不仅可以补偿电压暂降,也可以应对冲击负荷与瞬时停电,有效解决微电网的电能质量问题。
With the trend of complementing each other and common development of micro-grid and large power grids,power quality problems,such as voltage sags,temporary outage,will all he more critical in micro-grid with few generators.In a micro-grid,energy storage is essential.Super capacitor energy storage（SCES） has the advantages of quick response,high power output and high efficiency.This paper introduces the basic principle of SCES,built a mathematical model,and carries out the simulation experiments in different applications.Simulation results demonstrate that SCES can not only compensate the voltage sag,but also cope with impact load and temporary outage,improve the power quality of the micro-grid effectively.
出处
《陕西电力》
2010年第8期12-16,共5页
Shanxi Electric Power
基金
国家高技术研究发展计划(863计划)(2007AA05Z249)
关键词
储能技术
微电网
分布式发电
超级电容器
电能质量
energy storage
micro-grid
distributed generation
super capacitor
power quality
