Improved Linear Active Disturbance Rejection Control for Microgrid Frequency Regulation

The frequency regulation has become one of the major subjects in microgrid power system due to the complexity structure of microgrid. In order to solve this problem, this paper proposes an improved linear active disturbance rejection control algorithm (ILADRC) that can significantly improve system p...

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Main Authors: Xiao Qi, Yan Bai
Format: Article
Language:English
Published: MDPI AG 2017-07-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/10/7/1047
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author Xiao Qi
Yan Bai
author_facet Xiao Qi
Yan Bai
author_sort Xiao Qi
collection DOAJ
description The frequency regulation has become one of the major subjects in microgrid power system due to the complexity structure of microgrid. In order to solve this problem, this paper proposes an improved linear active disturbance rejection control algorithm (ILADRC) that can significantly improve system performances through changing feedback control law to reduce the disturbance estimation error of extended state observer. Then, the proposed algorithm is employed in microgrid power system frequency regulation problem, which demonstrates its effectiveness. The parameters of controllers are optimized by particle swarm optimization (PSO) algorithm improved by genetic algorithm (GA). Simulations with different disturbances including sudden and stochastic change of load demand and wind turbine generation are carried out in comparison with previous studies. And robustness testing based on Monte-Carlo approach also shows better performance. So frequency stability of microgrid power system can be well guaranteed by proposed control algorithm.
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spelling doaj.art-8b22b62a3b3940e3afaee79a566c72f12022-12-22T04:25:18ZengMDPI AGEnergies1996-10732017-07-01107104710.3390/en10071047en10071047Improved Linear Active Disturbance Rejection Control for Microgrid Frequency RegulationXiao Qi0Yan Bai1School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, ChinaSchool of Control and Computer Engineering, North China Electric Power University, Beijing 102206, ChinaThe frequency regulation has become one of the major subjects in microgrid power system due to the complexity structure of microgrid. In order to solve this problem, this paper proposes an improved linear active disturbance rejection control algorithm (ILADRC) that can significantly improve system performances through changing feedback control law to reduce the disturbance estimation error of extended state observer. Then, the proposed algorithm is employed in microgrid power system frequency regulation problem, which demonstrates its effectiveness. The parameters of controllers are optimized by particle swarm optimization (PSO) algorithm improved by genetic algorithm (GA). Simulations with different disturbances including sudden and stochastic change of load demand and wind turbine generation are carried out in comparison with previous studies. And robustness testing based on Monte-Carlo approach also shows better performance. So frequency stability of microgrid power system can be well guaranteed by proposed control algorithm.https://www.mdpi.com/1996-1073/10/7/1047microgridlinear active disturbance rejection controlfrequency regulation
spellingShingle Xiao Qi
Yan Bai
Improved Linear Active Disturbance Rejection Control for Microgrid Frequency Regulation
Energies
microgrid
linear active disturbance rejection control
frequency regulation
title Improved Linear Active Disturbance Rejection Control for Microgrid Frequency Regulation
title_full Improved Linear Active Disturbance Rejection Control for Microgrid Frequency Regulation
title_fullStr Improved Linear Active Disturbance Rejection Control for Microgrid Frequency Regulation
title_full_unstemmed Improved Linear Active Disturbance Rejection Control for Microgrid Frequency Regulation
title_short Improved Linear Active Disturbance Rejection Control for Microgrid Frequency Regulation
title_sort improved linear active disturbance rejection control for microgrid frequency regulation
topic microgrid
linear active disturbance rejection control
frequency regulation
url https://www.mdpi.com/1996-1073/10/7/1047
work_keys_str_mv AT xiaoqi improvedlinearactivedisturbancerejectioncontrolformicrogridfrequencyregulation
AT yanbai improvedlinearactivedisturbancerejectioncontrolformicrogridfrequencyregulation