• 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 ›› 2016, Vol. 37 ›› Issue (2): 57-62.doi: 10.3969/j.issn.1000-7229.2016.02.008

• 理论研究 • 上一篇    下一篇

电力系统多时间尺度灵活性指标研究

王鹏1,李宏仲1,吕风磊2,孙伟卿3,邱文平4,吴俊玲5   

  1. 1.上海电力学院电气工程学院,上海市 200090;2.国网山东省电力公司东营供电公司,山东省东营市 257091; 3.上海理工大学光电信息与计算机工程学院,上海市 200093; 4.国网福建省电力有限公司南平供电公司,福建省南平市 353000;5. 中国电力科学研究院,北京市 100192
  • 出版日期:2016-02-01
  • 作者简介:王鹏(1985),男,硕士研究生,研究方向为电力系统规划; 李宏仲(1977),男,博士,副教授,研究方向为电力系统规划; 吕风磊(1987),男,工程师,研究方向为电力系统安全与稳定; 孙伟卿(1985),男,博士,研究方向为电力系统经济运行; 邱文平(1987),男,工程师,研究方向为电力系统可靠性; 吴俊玲(1978),女,工程师,研究方向为电力系统稳定性。
  • 基金资助:

    国家电网公司科技项目(XT71-13-032),国家自然科学基金项目(51407117),上海市青年科技英才“扬帆计划”项目(14YF1410100)

Multi-Time Scale Flexible Indices of Power System

WANG Peng1, LI Hongzhong1, LYU Fenglei2, SUN Weiqing3, QIU Wenping4, WU Junling5   

  1. 1. College of Electrical Engineering,Shanghai University of Electric Power, Shanghai 200090, China;2. Dongying Power Supply Company, State Grid Shandong Electric Power Corporation, Dongying 257091, Shandong Province, China;3. School of Optical-Electrical and Computer Engineering, University of Shanghai for Science & Technology, Shanghai 200093, China;4. Nanping Power Supply Bureau of State Grid Fujian Power Company, Nanping 353000, Fujian Province, China;5. China Electric Power Research Institute, Beijing 100192, China
  • Online:2016-02-01
  • Supported by:

    Project supported by the National Natural Science Foundation of China (51407117)

摘要:

为了更好地解决间歇性电源接入电网的问题,应对风电的不确定性,考虑负荷的变化,提出了电力系统多时间尺度的灵活性评价模型。首先对风电的不确定性进行了介绍,阐述了灵活性的概念和特点,从应对电网中风电场出力变化能力的角度,针对负荷的变化,列举了3类不同的时间尺度,提出了基于不同时间尺度下系统响应电网中风电场出力变化最大速率的灵活性评价模型;对具体的灵活性评价数学模型进行阐述,并利用内点法实现了模型的求解。最后,以甘肃电网为例,对文中提出的灵活性指标进行了具体的算例说明。

关键词: 电力系统灵活性, 风电不确定性, 多时间尺度, 评价指标

Abstract:

To solve the problem of intermittent power connected to grid, this paper proposes the flexibility evaluation model of multi-time scale power system with considering wind power uncertainty and load fluctuation. This paper firstly introduces the wind power uncertainty, and describes the concept and characteristic of flexibility. From the view of the output change capacity of the wind farm in power grid, according to the change of load, we enumerate three kinds of time scales, and propose the flexibility evaluation model for the system response to the maximum change rate of wind farm output in power grid based on different time scales. Then, we explain the mathematical model of specific flexibility evaluation, and use interior point method to solve the model. Finally, taking Gansu power system as an example, the proposed flexibility indices is illustrated by a specific example.

Key words: power system flexibility, wind power uncertainty, multi-time scale, evaluation index

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