Design and Robustness Analysis of Multiple Extended State Observer Based Controller (MESOBC) for AVR of the Power System
Yükleniyor...
Dosyalar
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Hindawi Limited
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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. © 2023 Ravi Gandhi et al.
Açıklama
Anahtar Kelimeler
Controllers, Electric power system control, Power quality, Sensitivity analysis, State estimation, Synchronous generators, Uncertainty analysis, Design Analysis, Extended state observer, Load demand, Load voltages, Observer-based controllers, Parametric uncertainties, Power, Robustness analysis, Voltage regulator's, Voltage variation, Voltage regulators
Kaynak
International Transactions on Electrical Energy Systems
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
2023
