Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System

Automatic voltage regulator (AVR) is installed on the synchronous generators in the power system and plays a very important role in maintaining the generator output voltage besides changes in load demand, parametric uncertainties, and operating temperature. As the load is continuously varying in the...

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Main Authors: Ravi Gandhi, S. B. Masikana, Gulshan Sharma, Emre Çelik
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:International Transactions on Electrical Energy Systems
Online Access:http://dx.doi.org/10.1155/2023/1869840
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author Ravi Gandhi
S. B. Masikana
Gulshan Sharma
Emre Çelik
author_facet Ravi Gandhi
S. B. Masikana
Gulshan Sharma
Emre Çelik
author_sort Ravi Gandhi
collection DOAJ
description Automatic voltage regulator (AVR) is installed on the synchronous generators in the power system and plays a very important role in maintaining the generator output voltage besides changes in load demand, parametric uncertainties, and operating temperature. As the load is continuously varying in the system, the AVR needs controllers to track and regulate the voltage of the synchronous generator much faster. This paper shows an initial attempt to design a robust multiple extended state observer (MESO) to estimate the variation in lump disturbances (i.e., load demand and parametric uncertainties) from all the components of the AVR. MESO-based controller (MESOBC) can track such matching and mismatching of both types of irregularities and regulate the terminal voltage of the generator accordingly. MESOBC performance is matched with strong published AVR designs for a standard condition, ±30% load voltage variation and for simultaneous changes in AVR parameters with ±30% load voltage variations. Integrated square error (ISE) is chosen as an objective function to compare the output of MESOBC with other published AVR designs in view of graphical AVR responses and by calculating various numerical values for AVR responses. At last, the robustness of MESOBC is also checked through sensitivity analysis, and it is seen that MESOBC guaranteed robust performance for the AVR of the power system under diverse operating conditions.
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spelling doaj-art-01798fd7a86d453ab0df5a83c78947042025-02-03T06:47:15ZengWileyInternational Transactions on Electrical Energy Systems2050-70382023-01-01202310.1155/2023/1869840Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power SystemRavi Gandhi0S. B. Masikana1Gulshan Sharma2Emre Çelik3School of EngineeringDepartment of Electrical EngineeringDepartment of Electrical Engineering TechnologyDepartment of Electrical and Electronics EngineeringAutomatic voltage regulator (AVR) is installed on the synchronous generators in the power system and plays a very important role in maintaining the generator output voltage besides changes in load demand, parametric uncertainties, and operating temperature. As the load is continuously varying in the system, the AVR needs controllers to track and regulate the voltage of the synchronous generator much faster. This paper shows an initial attempt to design a robust multiple extended state observer (MESO) to estimate the variation in lump disturbances (i.e., load demand and parametric uncertainties) from all the components of the AVR. MESO-based controller (MESOBC) can track such matching and mismatching of both types of irregularities and regulate the terminal voltage of the generator accordingly. MESOBC performance is matched with strong published AVR designs for a standard condition, ±30% load voltage variation and for simultaneous changes in AVR parameters with ±30% load voltage variations. Integrated square error (ISE) is chosen as an objective function to compare the output of MESOBC with other published AVR designs in view of graphical AVR responses and by calculating various numerical values for AVR responses. At last, the robustness of MESOBC is also checked through sensitivity analysis, and it is seen that MESOBC guaranteed robust performance for the AVR of the power system under diverse operating conditions.http://dx.doi.org/10.1155/2023/1869840
spellingShingle Ravi Gandhi
S. B. Masikana
Gulshan Sharma
Emre Çelik
Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System
International Transactions on Electrical Energy Systems
title Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System
title_full Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System
title_fullStr Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System
title_full_unstemmed Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System
title_short Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System
title_sort design and robustness analysis of multiple extended state observer based controller mesobc for avr of the power system
url http://dx.doi.org/10.1155/2023/1869840
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AT gulshansharma designandrobustnessanalysisofmultipleextendedstateobserverbasedcontrollermesobcforavrofthepowersystem
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