• 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 ›› 2018, Vol. 39 ›› Issue (4): 15-.doi: 10.3969/j.issn.1000-7229.2018.04.003

• 储能技术 • 上一篇    下一篇

 基于Laguerre-NAR双谱估计的储能系统工况识别方法

 刘舒1,张宇1,薛花2,王育飞2,何阳2,李杨3

 
  

  1.  (1.国网上海市电力公司电力科学研究院,上海市 200437分号2.上海电力学院电气工程学院,上海市 200090分号3.国网江苏省电力公司泗阳县供电公司,江苏省宿迁市 223700)
     
  • 出版日期:2018-04-01
  • 作者简介:刘舒(1987),女,硕士,高级工程师,主要研究方向为微网、储能、新能源并网分号 张宇(1970),男,高级工程师,主要研究方向为先进储能技术分号 薛花(1979),女,博士,副教授,主要研究方向为非线性控制理论与储能技术应用分号 王育飞(1974),男,博士,副教授,主要研究方向为新能源并网、电力储能技术分号 何阳(1993),男,硕士研究生,主要研究方向为储能电站规划设计与性能监测分号 李杨(1992),男,硕士,工程师,主要研究方向为大功率储能系统设计。
  • 基金资助:
     基金项目:国家重点研发计划项目(2016YFB0101800);国家电网公司总部科技项目(52094016000F)

 Regime Recognition for Energy Storage System Based on Laguerre-NAR Bispectrum Estimation

 LIU Shu1, ZHANG Yu1, XUE Hua2, WANG Yufei2, HE Yang2, LI Yang3

 
  

  1.  (1.Electric Power Research Institute of State Grid Shanghai Electric Power Company,Shanghai 200437,China分号2.College of Electrical Engineering,Shanghai University of Electric Power,Shanghai 200090,China分号3. Siyang Electric Power Supply Company,State Grid Jiangsu Electric Power Company,Suqian 223700,Jiangsu Province,China)
     
  • Online:2018-04-01
  • Supported by:
     Project supported by the National Key Research and Development Program of China(2016YFB0101800)
     

摘要:  摘要:储能系统因具有平滑可再生能源发电并网功率的作用而应用日益广泛,但储能系统的非线性、非高斯、快速动态变化特性,使得其典型工况的实时监测和准确识别成为保障系统稳定运行的关键和难点所在。针对传统非线性自回归(nonlinear autoregressive,NAR)模型中估计参量较多的问题,提出采用Laguerre扩展分析方法提高双谱估计的准确度,设计新型的基于Laguerre-NAR双谱估计的储能系统典型工况识别方法,在较小数据信息情形下,准确提取信号相位信息,并实现高频率分辨率的快速识别。针对储能系统用于风电并网功率平滑的实测数据进行仿真分析,仿真结果验证了所提出的Laguerre-NAR双谱估计方法的有效性和可行性。

 

关键词:  , 关键词:Laguerre扩展, 双谱估计, 储能系统, 工况识别

Abstract:  ABSTRACT: The energy storage system is widely used because of the role of power smoothing of renewable energy generation. But the nonlinear, non Gauss and fast dynamic characteristics of energy storage system make the real-time monitoring and accurate identification of typical working conditions become the key and difficulty of ensuring the stable operation of the system. In view of the large number of estimation parameters in the traditional nonlinear autoregressive (NAR) model, this paper proposes the Laguerre expansion analysis method to improve the accuracy of bispectrum estimation, and designs a new identification method for typical operating conditions of energy storage system based on Laguerre-NAR bispectrum estimation, which can extracts the signal phase information accurately and realizes the fast recognition of high frequency resolution. Simulation analysis is carried out on the measured data of energy storage system for wind power integration power smoothing. The simulation results verify the effectiveness and feasibility of the proposed Laguerre-NAR bispectrum estimation method.

 

Key words:  KEYWORDS:  , Laguerre expansion, bispectrum estimation, energy storage system, regime recognition

中图分类号: