• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2017, Vol. 38 ›› Issue (10): 93-.doi: 10.3969/j.issn.1000-7229.2017.10.013

• 智能电网 • 上一篇    下一篇

含大规模风电场的电力系统线性化最优潮流计算

 张清松1,卫志农1,徐基光2,孙国强1,臧海祥1,何天雨3

 
  

  1.  (1.河海大学能源与电气学院,南京市211100分号2.国网芜湖供电公司,安徽省芜湖市241000分号.
    3.国网江苏省电力公司检修分公司,南京市  211102)
     
  • 出版日期:2017-10-01
  • 作者简介:张清松(1993),男,硕士研究生,本文通信作者,主要研究方向为电力系统优化运行分号 卫志农(1962),男,博士,教授,博士生导师,主要研究方向为电力系统运行分析与控制、输配电系统自动化分号 徐基光(1963),男,高级工程师,主要研究方向为电力生产与管理分号 孙国强(1978),男,博士,副教授,硕士生导师,主要研究方向为电力系统运行分析与控制、可再生能源发电系统分号 臧海祥(1986),男,博士,讲师,主要研究方向为电力系统规划与运行、新能源发电技术分号 何天雨(1992),男,硕士,工程师,主要研究方向为电力系统优化运行。
  • 基金资助:
     国家自然科学基金项目(51277052)

 Linearized Optimal Power Flow Calculation of Power Systems with Large Scale Wind Farm

 ZHANG Qingsong1, WEI Zhinong1, XU Jiguang2, SUN Guoqiang1, ZANG Haixiang1, HE Tianyu3

 
  

  1.  (1.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China分号.
    2. State Grid Wuhu Power Supply Company, Wuhu 241000, Anhui Province, China分号.
    3. State Grid Jiangsu Electric Power Maintenance Branch Company, Nanjing 211102, China)
     
  • Online:2017-10-01
  • Supported by:
     Project supported by National Natural Science Foundation of China(51277052)
     

摘要:  摘要:考虑随机因素的最优潮流(optimal power flow,OPF)计算属于非线性计算,随着系统规模增大,计算难度大大增加,计算效率低,难以满足电力系统在线计算分析要求。针对含大规模风电场的电力系统,首先利用近似简化方法对传统考虑风电不确定性的最优潮流模型进行线性化处理,同时利用拉丁超立方采样进行风电场景生成,基于场景削减技术获得概率测度较大的少数风电场景;然后建立一种新的考虑风电不确定性的线性化最优潮流模型;最后利用简化内点法进行求解。IEEE 300节点、Polish 2 736节点系统的计算结果表明,考虑风电不确定性的线性化最优潮流精度高、计算时间短、适用性强。

 

关键词:  , 风电不确定性, 场景削减, 最优潮流(OPF), 线性化

Abstract:  ABSTRACT:   Optimal power flow (OPF) calculation considering stochastic factors belongs to nonlinear computation, with the increase of the system scale, the difficulty of calculation greatly increases, and the computational efficiency is very low, which is difficult to meet the requirements of power system on-line calculation and analysis. For the power systems with large scale wind farm, this paper firstly linearizes the traditional optimal power flow calculation model considering wind power uncertainty by approximate simplification method, and uses Latin hypercube sampling to create wind power scenarios, in order to get few wind power scenarios whose probability measure is high, based on scene reduction technology. Then, this paper establishes a new linearized optimal power flow model considering wind power uncertainty. Finally, this paper uses the simplified interior point method to solve the problem. The calculation results of the IEEE 300 and Polish 2 736 bus systems show that the linear optimal power flow considering wind power uncertainty has high precision, short calculation time and strong applicability.

 

Key words:  wind power uncertainty, scene reduction, optimal power flow (OPF), linearization.

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