华南理工大学学报(自然科学版) ›› 2016, Vol. 44 ›› Issue (8): 68-73.doi: 10.3969/j.issn.1000-565X.2016.08.011

• 动力与电气工程 • 上一篇    下一篇

变压器中性点电容型隔直装置的优化配置

夏成军1 谢应耿1 李猛1 孙闻2   

  1. 1. 华南理工大学 电力学院,广东 广州 510640; 2. 广东电网有限责任公司 电力科学研究院,广东 广州 510080
  • 收稿日期:2015-10-13 修回日期:2015-12-14 出版日期:2016-08-25 发布日期:2016-07-04
  • 通信作者: 夏成军( 1974-) ,男,博士,副教授,主要从事电力系统分析运行与控制、HVDC 与FACTS 研究. E-mail:cjxia@scut.edu.cn
  • 作者简介:夏成军( 1974-) ,男,博士,副教授,主要从事电力系统分析运行与控制、HVDC 与FACTS 研究.
  • 基金资助:
    国家高技术研究发展计划( 863 计划) 项目( 2012AA050209 )

Optimal Configuration of Capacitor-Type Blocking Device at Neutral Point of Transformer

XIA Cheng-jun1 XIE Ying-geng1 LI Meng1 SUN Wen2   

  1. 1.School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.,Guangzhou 510080,Guangdong,China
  • Received:2015-10-13 Revised:2015-12-14 Online:2016-08-25 Published:2016-07-04
  • Contact: 夏成军( 1974-) ,男,博士,副教授,主要从事电力系统分析运行与控制、HVDC 与FACTS 研究. E-mail:cjxia@scut.edu.cn
  • About author:夏成军( 1974-) ,男,博士,副教授,主要从事电力系统分析运行与控制、HVDC 与FACTS 研究.
  • Supported by:
    Supported by the National Hige-tech R&D Program of China( 863 program) ( ( 2012AA050209)

摘要: 对一个区域内的变压器配置中性点电容隔直装置,可以作为一个优化问题来研 究. 文中设计了包含隔直装置的电网计算模型,并考虑电容器的特点,以装置台数少和中 性点电流的总和小为优化目标建立了组合配置的数学模型,结合粒子群优化算法,在不影 响隔直效果的同时尽可能减少装置投入成本,实现以最少的隔直装置台数达到最好的隔 直效果. 最后讨论了优化计算模型的求解方法,提出了一种改进的粒子群优化算法,并通 过算例验证了该算法的有效性.

关键词: 变压器中性点直流, 直流偏磁, 隔直装置, 粒子群优化

Abstract: To configure the capacitor-type blocking devices at the neutral point of a transformer can be taken as an optimization problem.In this paper,a computing model of the power grid with blocking devices is designed.Then,based on the characteristics of capacitors,a mathematic model for optimal configuration is constructed by taking small device number and small sum of neutral point currents as the objectives.In the mathematical model,the particle swarm optimization algorithm is combined to cut off as much device cost as possible without affecting the blocking efficiency,thus achieving the best blocking effect at the cost of the least blocking devices.Finally,the method to solve the computing model is discussed,and an improved optimization algorithm is proposed and then proved to be effective by an example.

Key words: neutral point current of transformer, DC magnetic bias, blocking device, particle swarm optimization