中国电力 ›› 2012, Vol. 45 ›› Issue (3): 38-42.DOI: 10.11930/j.issn.1004-9649.2012.3.38.4

• 电网 • 上一篇    下一篇

微网中电能质量问题及其治理措施研究

刘金鑫1, 李鹏1, 2, 崔红芬3, 习朋1   

  1. 1.华北电力大学 电力系统保护与动态安全监控教育部重点实验室,河北 保定 071003;
    2.华北电力大学 苏州研究院,江苏 苏州 215000;
    3.国网电力科学研究院,江苏 南京 210003
  • 收稿日期:2011-07-14 修回日期:2012-01-13 出版日期:2012-03-18 发布日期:2016-02-29
  • 作者简介:刘金鑫(1985-),男,吉林长春人,硕士研究生,从事微网技术与新能源并网发电、电能质量分析与控制研究。
  • 基金资助:
    国家自然科学基金资助项目(50977029); 华北电力大学新能源研究基金资助项目(200914002)

Research on microgrid power quality and control measures

LIU Jin-xin1, LI Peng1,2, CUI Hong-fen3, XI Peng1   

  1. 1. Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education, North China Electric Power University, Baoding 071003, China;
    2. Suzhou Institute of North China Electric Power University, Suzhou 215000, China;
    3. State Grid Electric Power Research Institute, Nanjing 210003, China
  • Received:2011-07-14 Revised:2012-01-13 Online:2012-03-18 Published:2016-02-29

摘要: 微网技术具有诸多优点,但是微网中分布式电源的自身特性不平稳使微网及其运行控制困难,对微网的电能质量产生不利影响。在分析微网结构和特点的基础之上,通过与传统配电网电能质量问题的对比,对微网电能质量问题进行分析。对并联型有源滤波器(SAPF)模型进行改进,在检测环节用形态滤波器代替低通滤波器,并对形态滤波器的结构元素选择进行分析。在Matlab/Simulink软件平台上进行仿真分析,仿真结果证明改进的SAPF模型能满足微网对电能质量调节装置实时性的要求。

关键词: 微网, 电能质量, 数学形态滤波器, 并联型有源滤波器, 治理措施

Abstract: The microgrid technologies have many outstanding advantages. However, the inherent characteristics of distributed generators (DGs), the special network topology and the operation performances of microgrids bring unfavorable impacts on microgrid power quality. The structure and performances of microgrids were discussed. Based on the discussion, the microgrid power quality was analyzed and compared with traditional distribution grids. By replacing lowpass filter with mathematical morphological filter in detection unit, shunt active power filter (SAPF) model was improved. The selection of filter structure elements was also well analyzed. Simulation study was done with Matlab/Simulink software. The simulation results prove that the improved SAPF model can meet the real-time requirements of microgrids for power quality regulating devices.

Key words: microgrid, power quality, mathematical morphological filter, shunt active power filter, control measure

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