基于时间尺度自适应小波包的风电波动平抑策略

王健; 汪茹康; 徐钢; 邓振宇; 张真

doi:10.19805/j.cnki.jcspe.2025.240446

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基于时间尺度自适应小波包的风电波动平抑策略

新能源与储能 | 更新时间：2026-10-10

- 基于时间尺度自适应小波包的风电波动平抑策略
- Wind Power Fluctuation Smoothing Strategy Based on Time-scale Adaptive Wavelet Packet
- 动力工程学报 2025年45卷第9期页码：1412-1421
- 作者机构：
  
  1. 华北电力大学能源动力与机械工程学院,北京,102206
  2. 国网青海省电力公司电力调度控制中心,青海,西宁,810001
- 作者简介：
  
  王健(2000—),男,江苏盐城人,硕士研究生,研究方向为新型电力系统下的储能建模及优化调度,E-mail:wangjian102800@163.com
- 基金信息：
  
  国家自然科学基金资助项目(52090064)
- DOI：10.19805/j.cnki.jcspe.2025.240446
  中图分类号：
- 网络首发：2025-09-16，
  
  纸质出版：2025
- 稿件说明：
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王健,汪茹康,徐钢,邓振宇,张真. 基于时间尺度自适应小波包的风电波动平抑策略动力工程学报, 2025, 45(9): 1412-1421 https://doi.

org/10.19805/j.cnki.jcspe.2025.240446
王健,汪茹康,徐钢,邓振宇,张真. 基于时间尺度自适应小波包的风电波动平抑策略动力工程学报, 2025, 45(9): 1412-1421 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240446.

org/10.19805/j.cnki.jcspe.2025.240446 DOI：

摘要

由于风电出力的波动性和不确定性会极大地影响电力系统的稳定、电网频率和电能质量

提出了一种基于时间尺度自适应小波包的风电波动平抑策略。首先

选取合适的时间尺度来划分时间域

进行自适应小波包分解

并在相邻时间域利用算数平均方法对波动越限的数据进行平抑。其次

综合混合储能特性

利用能量熵差对风电波动功率进行分析

合理地分配波动功率。最后

考虑到储能设备的荷电状态(SOC)及循环使用寿命

采用两阶段模糊控制优化飞轮储能和磷酸铁锂电池的功率输出指令。结果表明:所提出的策略能有效平抑功率波动

更准确地分配混合储能分量

同时能有效降低SOC越限情况

提升电能质量。

Abstract

Due to the volatility and uncertainty of wind power output

which significantly impact the stability of the power system

grid frequency and power quality

a wind power fluctuation smoothing strategy based on time-scale adaptive wavelet packet was proposed. Firstly

an appropriate time scale was selected to divide the time domain

adaptive wavelet packet decomposition was performed

and arithmetic averaging was applied to smooth fluctuations that exceed the limits at the boundaries of adjacent time domains. Secondly

a comprehensive analysis of hybrid energy storage characteristics was conducted

and the energy entropy difference was used to analyze the wind power fluctuation power

reasonably distributing the fluctuation power. Finally

considering the state of charge (SOC) and cycle life of energy storage devices

a two-stage fuzzy control was applied to optimize the power output instructions of the flywheel energy storage and lithium iron phosphate batteries. Results show that the proposed strategy can effectively mitigate power fluctuations

more accurately allocate hybrid energy storage components

effectively reduce SOC violations

and improve power quality.

关键词

Keywords

references

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