Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy

Abstract In order to solve the problems of power quality reduction and power fluctuation caused by large‐scale wind power grid‐connected, an advanced control strategy to smooth the power fluctuation and allocation of hybrid energy storage system is proposed. Based on theoretical researches, the math...

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Main Authors: Zheng Xidong, Jiang Xiubo
Format: Article
Language:English
Published: Wiley 2021-02-01
Series:IET Generation, Transmission & Distribution
Subjects:
Online Access:https://doi.org/10.1049/gtd2.12041
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author Zheng Xidong
Jiang Xiubo
author_facet Zheng Xidong
Jiang Xiubo
author_sort Zheng Xidong
collection DOAJ
description Abstract In order to solve the problems of power quality reduction and power fluctuation caused by large‐scale wind power grid‐connected, an advanced control strategy to smooth the power fluctuation and allocation of hybrid energy storage system is proposed. Based on theoretical researches, the mathematical model of hybrid energy storage system is adopted to well analyse the fluctuation and smoothing strategy of wind power. Compared with the traditional filtering algorithms, the study proposes a method combined optimal exponential smoothing with complete ensemble empirical mode decomposition with adaptive noise and normalized energy entropy to improve the accuracy of grid‐connected output power and power allocation. Furthermore, the fuzzy control theory is used to improve the reliability of the algorithm after obtaining the smoothed power output and initial power allocation instructions. To prove the validity of the algorithm, case studies are constructed to demonstrate the performance in this paper. Experiments and example simulations show that the proposed method can effectively realize adaptive power allocation and improve the accuracy of identification. After effectively improving the efficiency and service life of the energy storage system, it provides a basis for large‐scale grid operation.
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spelling doaj.art-3704b27ad7a1448cb0df460340a183d92022-12-22T03:13:08ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952021-02-0115353354510.1049/gtd2.12041Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropyZheng Xidong0Jiang Xiubo1College of Electrical Engineering and automation in Fuzhou University Fuzhou ChinaCollege of Electrical Engineering and automation in Fuzhou University Fuzhou ChinaAbstract In order to solve the problems of power quality reduction and power fluctuation caused by large‐scale wind power grid‐connected, an advanced control strategy to smooth the power fluctuation and allocation of hybrid energy storage system is proposed. Based on theoretical researches, the mathematical model of hybrid energy storage system is adopted to well analyse the fluctuation and smoothing strategy of wind power. Compared with the traditional filtering algorithms, the study proposes a method combined optimal exponential smoothing with complete ensemble empirical mode decomposition with adaptive noise and normalized energy entropy to improve the accuracy of grid‐connected output power and power allocation. Furthermore, the fuzzy control theory is used to improve the reliability of the algorithm after obtaining the smoothed power output and initial power allocation instructions. To prove the validity of the algorithm, case studies are constructed to demonstrate the performance in this paper. Experiments and example simulations show that the proposed method can effectively realize adaptive power allocation and improve the accuracy of identification. After effectively improving the efficiency and service life of the energy storage system, it provides a basis for large‐scale grid operation.https://doi.org/10.1049/gtd2.12041Wind power plantsOptimisation techniquesPower and energy controlControl of electric power systemsOther topics in statisticsOptimisation techniques
spellingShingle Zheng Xidong
Jiang Xiubo
Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy
IET Generation, Transmission & Distribution
Wind power plants
Optimisation techniques
Power and energy control
Control of electric power systems
Other topics in statistics
Optimisation techniques
title Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy
title_full Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy
title_fullStr Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy
title_full_unstemmed Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy
title_short Power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy
title_sort power fluctuation and allocation of hybrid energy storage system based on optimal exponential smoothing method and energy entropy
topic Wind power plants
Optimisation techniques
Power and energy control
Control of electric power systems
Other topics in statistics
Optimisation techniques
url https://doi.org/10.1049/gtd2.12041
work_keys_str_mv AT zhengxidong powerfluctuationandallocationofhybridenergystoragesystembasedonoptimalexponentialsmoothingmethodandenergyentropy
AT jiangxiubo powerfluctuationandallocationofhybridenergystoragesystembasedonoptimalexponentialsmoothingmethodandenergyentropy