华南理工大学学报(自然科学版) ›› 2012, Vol. 40 ›› Issue (2): 118-123.

• 动力与电气工程 • 上一篇    下一篇

地区主网节能潜力评估方法以及应用

蒋金良 刘瀚林 张勇军   

  1. 华南理工大学 电力学院//广东省绿色能源技术重点实验室,广东 广州 510640
  • 收稿日期:2011-05-18 修回日期:2011-09-21 出版日期:2012-02-25 发布日期:2012-01-04
  • 通信作者: 蒋金良(1953-) ,男,副研究员,主要从事电力市场风险、电力节能规划研究. E-mail:jljiang@ scut.edu.cn
  • 作者简介:蒋金良(1953-) ,男,副研究员,主要从事电力市场风险、电力节能规划研究.
  • 基金资助:

    国家自然科学基金资助项目( 51147006)

Method to Evaluate Energy-Saving Potential of Regional Main Power Grid and Its Application

Jiang Jin-liang  Liu Han-lin  Zhang Yong-jun   

  1. School of Electric Power//Guangdong Key Laboratory of Clean Energy Technology,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-05-18 Revised:2011-09-21 Online:2012-02-25 Published:2012-01-04
  • Contact: 蒋金良(1953-) ,男,副研究员,主要从事电力市场风险、电力节能规划研究. E-mail:jljiang@ scut.edu.cn
  • About author:蒋金良(1953-) ,男,副研究员,主要从事电力市场风险、电力节能规划研究.
  • Supported by:

    国家自然科学基金资助项目( 51147006)

摘要: 提出了降低地区主网有功损耗的有效手段及主网节能潜力评估方法,主要涉及重载线路导线优化更换、主变压器经济运行、负荷分布优化、电厂优化调度和无功优化配置5 个方面,并给出了制订地区主网节能规划的思路。结合某市实际电网,进行了一系列的潮流计算与无功优化计算,评估了各种节能手段的潜力,据此制订了相应的节能规划,算例表明所提方法具有较好的主网节能降耗效果.

关键词: 电力系统, 主网, 节能, 潜力评估, 无功优化

Abstract:

In this paper,several effective means of reducing the active power loss and a method to evaluate the energy-saving potential are proposed for regional main power grid. The investigation mainly involves the optimal replacement of heavy transmission lines,the economic operation of the main transformer,the load distribution optimization,the optimal dispatching of power plants and the reactive power optimization. Then,a general idea of energysaving planning is presented,and a case study is performed on an actual regional main power grid to evaluate the energy-saving potential according to a series of flow and reactive power optimization calculation. Finally,a relevant energy-saving planning is worked out and its energy-saving effectiveness is verified.

Key words: power system, main power grid, energy saving, potential evaluation, reactive power optimization