上海交通大学学报(自然版) ›› 2011, Vol. 45 ›› Issue (08): 1240-1245.

• 电工技术 • 上一篇    下一篇

微网中电能质量调节器的稳定性及其容量分析

李俊1,2,刘小宁2,张广明1   

  1. (1. 南京工业大学 自动化与电气工程学院, 南京 210009; 2. 中国科学院 强磁场科学中心,合肥 230031)
  • 收稿日期:2011-03-25 出版日期:2011-08-30 发布日期:2011-08-30
  • 基金资助:

    国家自然科学基金资助项目(50977086),江苏省科技支撑计划项目(BE2009166)

Stability and Capacity Analysis of Power Quality Conditioner in Microgrid

 LI  Jun-1, 2 , LIU  Xiao-Ning-2, ZHANG  Guang-Ming-1   

  1. (1. School of Automation & Electrical Engineering, Nanjing University of Technology,Nanjing 210009, China; 2. Science Center of High Magnetic Field,
    Chinese Academy of Sciences, Hefei 230031, China)
  • Received:2011-03-25 Online:2011-08-30 Published:2011-08-30

摘要: 针对新能源分布式发电构成的微网电能质量问题,介绍了一种综合型电能质量调节方案.通过调节器串联部分抑制分布式新能源发电间歇性等因素带来的电压质量问题,利用调节器的串联侧消除非线性负载向微网注入的谐波电流.在此基础上,分析了系统的稳定性及其容量与相关参数之间的关系,并进行了仿真.结果表明,并联侧等效电阻是影响系统稳定的一个重要因素,电压波动率是影响串、并联侧容量的关键参数,并给出了串、并联侧的容量最小条件.这为实际装置的设计和相关参数选择提供了指导,对进一步深入系统的研究具有一定的理论意义与实用价值.

关键词: 微网, 电能质量调节器, 稳定性, 容量分析

Abstract:  According to the power quality problem of microgrid based on new energy distributed generation, this paper introduced a kind of comprehensive power quality conditioner scheme. In the scheme the conditioner series part is used to suppress distributed new energy generation intermittence, and the series side is used to eliminate the harmonic current brought by nonlinear load into the microgrid. On this basis, the paper analyzed the stability of the system and the relationship between  the conditioner capacity and related parameters, and  simulations were performed. The results show that the equivalent parallel resistance is an important factor on the system stability; the voltage volatility is a key factor to affect seriesparallel side conditioner capacity. At the same time, the paper provide the condition of minimum capacity. The results provide guidance for the actual device design and related parameter selection and have  certain theoretical significance and practical value for further study.

Key words:  , microgrid; power quality conditioner; stability; capacity analysis

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