储能科学与技术 ›› 2015, Vol. 4 ›› Issue (2): 176-182.doi: 10.3969/j.issn.2095-4239.2015.02.008

• 研究与进展 • 上一篇    下一篇

超导限流-储能系统风电场应用分析

郭文勇   

  1. 中国科学院电工研究所应用超导重点实验室,北京 100190
  • 收稿日期:2014-10-25 出版日期:2015-04-19 发布日期:2015-04-19
  • 作者简介:郭文勇(1979—),博士,副研究员,主要研究方向为故障限流器、电力储能和风力发电,E-mail:wyguo@mail.iee.ac.cn。
  • 基金资助:
    国家自然科学基金项目(50907070,51361135705),国家“863”计划项目(2013AA050803)

Application analysis of a superconducting fault current limiter-magnetic energy storage system for the wind farm

GUO Wenyong   

  1. Key Laboratory of Applied Superconductivity,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China
  • Received:2014-10-25 Online:2015-04-19 Published:2015-04-19

摘要: 风力发电所面临的两大重要问题是低电压穿越能力弱和功率输出不稳定。为了同时解决这两个问题,我们提出了超导限流-储能系统,并进行了单机系统的仿真研究,证实了该方案的有效性。然而对于风电场的应用,目前尚无研究。本文将超导限流-储能系统的应用扩展到风电场,分析了其提高低电压穿越能力和稳定有功功率输出的机理,并进行了仿真研究。从仿真结果来看,超导限流-储能系统能够同时提高风电场所有风机的低电压穿越能力,并能有效地平滑整个风电场的有功输出功率。考虑不同风机的互补效应,将该系统应用于风力发电场与直接应用于单台风机相比,其储能量和功率输出的要求可以大大降低,从而可以有效地减少系统总成本,因而具有更好的应用前景。

关键词: 超导储能系统, 低电压穿越, 超导限流器, 风力发电, 双馈感应电机

Abstract: Two major challenges in wind power generation are weak low voltage ride through (LVRT) capability and unstable power output. A superconducting fault current limiter-magnetic energy storage system (SFCL-MES) has been proposed to address the two challenges. Simulations on the proposed system have been carried out using a single wind power generator, and validated the system performance. This paper extends the concept of SFCL-MES to a wind farms. Simulations are carried out on the extended systems and the effect of the use of the SFCL-MES on the LVRT capability and power output of the wind farms are analyzed. Great enhancement of the LVRT capability of wind power generator is observed. The use of the SFCL-MES has also been shown to smooth the active output power of the wind farm. Considering complementary effect of generators in wind farms, power capacity requirements for the SFCL-MES for a whole wind farm is expected to be considerably lower than the summation of the requirements of individual wind power generator. The total cost is therefore expected to be reduced.

Key words: superconducting magnetic energy storage system (SMES), low voltage ride through (LVRT), superconducting fault current limiter (SFCL), wind power generation, doubly fed induction generator (DFIG)

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