• 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 (8): 134-.doi: 10.3969/j.issn.1000-7229.2016.08.021

• 优化设计与控制 • 上一篇    下一篇

基于模糊经验模态分解的电池储能系统平滑风电出力控制策略

杨锡运1,曹超2,李相俊3,任杰1,高峰1,吴子晗1   

  1. 1.华北电力大学控制与计算机工程学院,北京市 102206; 2.上海电气集团股份有限公司中央研究院,上海市 200070;3.中国电力科学研究院,北京市 100192
  • 出版日期:2016-08-01
  • 作者简介:杨锡运(1973),女,博士,教授,主要研究方向为新能源发电技术; 曹超(1990),男,硕士研究生,主要研究方向为新能源发电控制技术和储能技术; 李相俊(1979),男,博士,教授级高级工程师,主要研究方向为大规模储能技术、新能源与分布式发电及电力系统分析; 任杰(1992),男,硕士研究生,主要研究方向为新能源发电控制技术和储能技术; 高峰(1976),男,博士,讲师,主要研究方向为新能源发电技术; 吴子晗(1990),男,硕士研究生,主要研究方向为新能源发电技术。
  • 基金资助:
    中央高校基本科研业务费专项资金资助项目(2015MS32);北京市自然科学基金项目(4132061);北京市科技新星计划项目(Z141101001814094);国家电网公司科技项目(DG71-14-046)

Control Strategy of Smoothing Wind Power Output Using Battery Energy Storage System Based on Fuzzy Empirical Mode Decomposition

YANG Xiyun1, CAO Chao2, LI Xiangjun3, REN Jie1, GAO Feng1, WU Zihan1   

  1. 1.School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China; 2.Central Research Institute of Shanghai Electric Group Co. Ltd, Shanghai 200070, China; 3.China Electrical Power Research Institute, Beijing 100192, China
  • Online:2016-08-01
  • Supported by:
    Project supported by Fundamental Research Funds for the Central Universities(2015MS32); Beijing Natural Science Foundation (4132061); Beijing New-star Plan of Science and Technology (Z141101001814094); Science and Technology Project of SGCC(DG71-14-046)

摘要: 为减少风电波动率,提高并网可靠性,提出一种基于模糊经验模态分解(empirical mode decomposition,EMD)的储能系统平滑风电功率波动的控制策略。采用经验模态分解对风电功率进行滤波,低频分量并网,高频分量并入电池储能系统(battery energy storage system,BESS)。使用平滑后风电波动率和储能电池荷电状态(state of charge,SOC)作为约束条件,利用模糊控制算法,自适应在线调整EMD滤波阶数,通过模糊自适应控制器,能够更好地平滑风电波动。对比其他平抑风电功率储能控制策略,仿真实例表明,该方法可以有效地平抑风电功率波动,避免储能电池过充过放,稳定储能荷电状态。

关键词: 经验模态分解(EMD), 功率平滑, 模糊控制, 波动率, 荷电状态(SOC)

Abstract: To reduce the fluctuation rate of wind power and improve the reliability of grid, this paper proposes a control method of smoothing wind power output with battery energy storage system based on fuzzy empirical mode decomposition (EMD). Wind power is decomposed by EMD into two parts, the low-frequency part is used as wind power grid-connected value and the high-frequency part is stored by battery energy storage system (BESS). Taking the fluctuation rate of wind power output after smoothing and the state of charge (SOC) as constraints, the orders of EMD filter can be adaptively adjusted on-line based on fuzzy control method, which can smooth wind power fluctuation better through fuzzy adaptive controller. Compared with another energy storage system control strategies for smoothing wind power, the simulation results show that the proposed method can effectively smooth the fluctuation of winds power output and avoid the over-charging and over-discharging of energy storage system so as to keep SOC stable.

Key words: empirical mode decomposition (EMD), power smoothing, fuzzy control method, fluctuation rate, state of charge (SOC)

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