Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID Compensation

This paper presents an active disturbance rejection control (ADRC) technique for load frequency control of a wind integrated power system when communication delays are considered. To improve the stability of frequency control, equivalent input disturbances (EID) compensation is used to eliminate the...

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Main Authors: Fang Liu, Kailiang Zhang, Runmin Zou
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/17/3223
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author Fang Liu
Kailiang Zhang
Runmin Zou
author_facet Fang Liu
Kailiang Zhang
Runmin Zou
author_sort Fang Liu
collection DOAJ
description This paper presents an active disturbance rejection control (ADRC) technique for load frequency control of a wind integrated power system when communication delays are considered. To improve the stability of frequency control, equivalent input disturbances (EID) compensation is used to eliminate the influence of the load variation. In wind integrated power systems, two area controllers are designed to guarantee the stability of the overall closed-loop system. First, a simplified frequency response model of the wind integrated time-delay power system was established. Then the state-space model of the closed-loop system was built by employing state observers. The system stability conditions and controller parameters can be solved by some linear matrix inequalities (LMIs) forms. Finally, the case studies were tested using MATLAB/SIMULINK software and the simulation results show its robustness and effectiveness to maintain power-system stability.
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spelling doaj.art-5c48f9d9880e481593d4badb118f04792022-12-22T04:28:29ZengMDPI AGEnergies1996-10732019-08-011217322310.3390/en12173223en12173223Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID CompensationFang Liu0Kailiang Zhang1Runmin Zou2School of Automation, Central South University, Changsha 410083, ChinaSchool of Automation, Central South University, Changsha 410083, ChinaSchool of Automation, Central South University, Changsha 410083, ChinaThis paper presents an active disturbance rejection control (ADRC) technique for load frequency control of a wind integrated power system when communication delays are considered. To improve the stability of frequency control, equivalent input disturbances (EID) compensation is used to eliminate the influence of the load variation. In wind integrated power systems, two area controllers are designed to guarantee the stability of the overall closed-loop system. First, a simplified frequency response model of the wind integrated time-delay power system was established. Then the state-space model of the closed-loop system was built by employing state observers. The system stability conditions and controller parameters can be solved by some linear matrix inequalities (LMIs) forms. Finally, the case studies were tested using MATLAB/SIMULINK software and the simulation results show its robustness and effectiveness to maintain power-system stability.https://www.mdpi.com/1996-1073/12/17/3223load frequency control (LFC)equivalent input disturbance (EID)active disturbance rejection control (ADRC)windlinear matrix inequalities (LMI)
spellingShingle Fang Liu
Kailiang Zhang
Runmin Zou
Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID Compensation
Energies
load frequency control (LFC)
equivalent input disturbance (EID)
active disturbance rejection control (ADRC)
wind
linear matrix inequalities (LMI)
title Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID Compensation
title_full Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID Compensation
title_fullStr Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID Compensation
title_full_unstemmed Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID Compensation
title_short Robust LFC Strategy for Wind Integrated Time-Delay Power System Using EID Compensation
title_sort robust lfc strategy for wind integrated time delay power system using eid compensation
topic load frequency control (LFC)
equivalent input disturbance (EID)
active disturbance rejection control (ADRC)
wind
linear matrix inequalities (LMI)
url https://www.mdpi.com/1996-1073/12/17/3223
work_keys_str_mv AT fangliu robustlfcstrategyforwindintegratedtimedelaypowersystemusingeidcompensation
AT kailiangzhang robustlfcstrategyforwindintegratedtimedelaypowersystemusingeidcompensation
AT runminzou robustlfcstrategyforwindintegratedtimedelaypowersystemusingeidcompensation