LAPSE:2023.7245
Published Article
LAPSE:2023.7245
Real-Time Validation of a Novel IAOA Technique-Based Offset Hysteresis Band Current Controller for Grid-Tied Photovoltaic System
Bhabasis Mohapatra, Binod Kumar Sahu, Swagat Pati, Mohit Bajaj, Vojtech Blazek, Lukas Prokop, Stanislav Misak, Mosleh Alharthi
February 24, 2023
Renewable energy sources have power quality and stability issues despite having vast benefits when integrated with the utility grid. High currents and voltages are introduced during the disconnection or injection from or into the power system. Due to excessive inverter switching frequencies, distorted voltage waveforms and high distortions in the output current may be observed. Hence, advancing intelligent and robust optimization techniques along with advanced controllers is the need of the hour. Therefore, this article presents an improved arithmetic optimization algorithm and an offset hysteresis band current controller. Conventional hysteresis band current controllers (CHCCs) offer substantial advantages such as fast dynamic response, over-current, and robustness in response to impedance variations, but they suffer from variable switching frequency. The offset hysteresis band current controller utilizes the zero-crossing time of the current error for calculating the lower/upper hysteresis bands after the measurement of half of the error current period. The duty cycle and hysteresis bands are considered as design variables and are optimally designed by minimizing the current error and the switching frequency. It is observed that the proposed controller yields a minimum average switching frequency of 2.33 kHz and minimum average switching losses of 9.07 W in comparison to other suggested controllers. Results are validated using MATLAB/Simulink environment followed by real-time simulator OPAL-RT 4510.
Keywords
arithmetic optimization algorithm (AOA), conventional hysteresis band current controller (CHCC), improved arithmetic optimization algorithm (IAOA), offset hysteresis band current controller (OFHCC), particle swarm optimization (PSO)
Suggested Citation
Mohapatra B, Sahu BK, Pati S, Bajaj M, Blazek V, Prokop L, Misak S, Alharthi M. Real-Time Validation of a Novel IAOA Technique-Based Offset Hysteresis Band Current Controller for Grid-Tied Photovoltaic System. (2023). LAPSE:2023.7245
Author Affiliations
Mohapatra B: Department of Electrical Engineering, ITER, Siksha ‘O’ Anusandhan (Deemed to be University), Odisha 751030, India [ORCID]
Sahu BK: Department of Electrical Engineering, ITER, Siksha ‘O’ Anusandhan (Deemed to be University), Odisha 751030, India [ORCID]
Pati S: Department of Electrical Engineering, ITER, Siksha ‘O’ Anusandhan (Deemed to be University), Odisha 751030, India
Bajaj M: Department of Electrical Engineering, Graphic Era (Deemed to be University), Dehradun 248002, India [ORCID]
Blazek V: ENET Centre, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech Republic [ORCID]
Prokop L: ENET Centre, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech Republic [ORCID]
Misak S: ENET Centre, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech Republic
Alharthi M: Department of Electrical Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Journal Name
Energies
Volume
15
Issue
23
First Page
8790
Year
2022
Publication Date
2022-11-22
Published Version
ISSN
1996-1073
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PII: en15238790, Publication Type: Journal Article
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LAPSE:2023.7245
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doi:10.3390/en15238790
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