中国电力 ›› 2016, Vol. 49 ›› Issue (3): 148-153.DOI: 10.11930/j.issn.1004-9649.2016.03.148.06

• 新能源 • 上一篇    下一篇

基于实际运行数据的风电场功率曲线优化方法

饶日晟1,叶林1,任成1,宋旭日2,郎燕生2,靳晶新3   

  1. 1. 中国农业大学 信息与电气工程学院,北京 100083;
    2. 中国电力科学研究院 电力自动化所,北京 100192;
    3. 内蒙古自治区水利水电勘测设计院,内蒙古 呼和浩特 010021
  • 收稿日期:2015-10-08 出版日期:2016-03-20 发布日期:2016-04-08
  • 作者简介:饶日晟(1992—),男,福建南平人,硕士研究生,从事电力系统运行与控制、新能源发电技术方面的研究。E-mail: rrs@cau.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51477174,51174290,51077126);教育部高等学校博士学科点专项科研资助基金(20110008110042);国家电网公司科技项目(DZB51201503568)

Wind Farm Power Curve Optimization Based on Actual Operating Data

RAO Risheng1, YE Lin1, REN Cheng1, SONG Xuri2, LANG Yansheng2, JIN Jingxin3   

  1. 1. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China;
    2. Power Automation Department, China Electric Power Research Institute, Beijing 100192, China;
    3. Inner Mongolia Water Resources and Hydropower Survey and Design Institute, Hohhot 010021, China
  • Received:2015-10-08 Online:2016-03-20 Published:2016-04-08
  • Supported by:
    This work is supported by National Natural Science Foundation of China (No. 51477174, 51174290, 51077126) and Specialized Research Fund for the Doctoral Program of Higher Education(SRFDP) of China(No. 20110008110042); Science and Technology Project of SGCC (No. DZB51201503568).

摘要: 根据风电场的实际运行数据分析风电场风速与风电场输出功率的统计规律,在传统风速区间划分的基础上提出一种风电场功率曲线的优化方法,通过对每个风速区间分配等量的历史观测数据,采用分段最小二乘线性回归方法对风速与输出有功功率之间的关系进行拟合,建立了风电场基于实际运行数据的优化功率曲线,并利用风电场实测数据对优化功率曲线进行验证分析。算例结果表明,风电场功率曲线优化方法精度较高,能够更准确反映风电场实际运行特性,可为风电场运行特性分析及并网研究提供参考。

关键词: 电力系统, 运行数据, 观测数据, 风电场, 风速-功率特性, 分段拟合, 最小二乘法, 线性回归, 优化功率曲线

Abstract: This paper analyzes the statistical relationship between wind farm’s wind speed and power output using actual operating data. It proposes a methodology to optimize the power output curve for a wind farm based on the traditional wind speed partitioning approach. Historical observation data is equally distributed into each wind speed interval. A piecewise least squares linear regression approach is used to determine the best fir between the wind speed and the power output, and to establish the optimal power output curve using actual operating data. The power output curve is further tested with observed data in real time. Case studies indicate that the power output curve optimization method has high accuracy and can better reflect the actual operating characteristic of a wind farm. The methodology contributes to the study of wind farm operational characteristics and wind power integration research.

Key words: power system, operating data, observed data, wind farm, wind speed vs. power characteristic, piecewise fitting, least square method, linear regression method, optimal power curve

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