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Article

Dynamical Operation Based Robust Nonlinear Control of DC Microgrid Considering Renewable Energy Integration

1
Department of Electrical Engineering, Jouf University, Sakaka 72388, Saudi Arabia
2
School of Electrical Engineering and Computer Science (SEECS), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
3
School of Electrical Engineering, Shandong University, Jinan 250061, China
4
School of Electrical Engineering, The University of Faisalabad (TUF), Faisalabad 38000, Pakistan
*
Author to whom correspondence should be addressed.
Academic Editors: Sonia Leva, Emanuele Ogliari and Alessandro Niccolai
Energies 2021, 14(13), 3988; https://doi.org/10.3390/en14133988
Received: 24 May 2021 / Revised: 26 June 2021 / Accepted: 27 June 2021 / Published: 2 July 2021
(This article belongs to the Special Issue Solar and Wind Power and Energy Forecasting Ⅱ)
The importance of microgrids has been acknowledged with the increasing amount of research in direct current (DC) microgrids. The main reason for this is the straightforward structure and efficient performance. In this research article, double integral sliding mode controllers (DISMCs) have been proposed for energy harvesting and DC microgrid management involving renewable sources and a hybrid energy storage system (HESS). DISMC offers a better dynamic response and reduced amount of chattering than the traditional sliding mode controllers. In the first stage, the state differential model for the grid was derived. Then, the nonlinear control laws were proposed for the PV system and hybrid energy storage system to achieve the main objective of voltage regulation at the DC link. In the later part, the system’s asymptotic stability was proven using Lyapunov stability criteria. Finally, an energy management algorithm was provided to ensure the DC microgrid’s smooth operation within the safe operating limit. The proposed system’s effectiveness was validated by implementing on MATLAB/Simulink software and comparing against sliding mode control and Lyapunov redesign. Moreover, to ensure the proposed controller’s practical viability for this scheme, it has been tested on real-time hardware-in-the-loop test bench. View Full-Text
Keywords: DC Microgrid; hybrid energy storage system; renewable energy; double integral SMC; DC–DC converters DC Microgrid; hybrid energy storage system; renewable energy; double integral SMC; DC–DC converters
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MDPI and ACS Style

Armghan, A.; Azeem, M.K.; Armghan, H.; Yang, M.; Alenezi, F.; Hassan, M. Dynamical Operation Based Robust Nonlinear Control of DC Microgrid Considering Renewable Energy Integration. Energies 2021, 14, 3988. https://doi.org/10.3390/en14133988

AMA Style

Armghan A, Azeem MK, Armghan H, Yang M, Alenezi F, Hassan M. Dynamical Operation Based Robust Nonlinear Control of DC Microgrid Considering Renewable Energy Integration. Energies. 2021; 14(13):3988. https://doi.org/10.3390/en14133988

Chicago/Turabian Style

Armghan, Ammar, Muhammad K. Azeem, Hammad Armghan, Ming Yang, Fayadh Alenezi, and Mudasser Hassan. 2021. "Dynamical Operation Based Robust Nonlinear Control of DC Microgrid Considering Renewable Energy Integration" Energies 14, no. 13: 3988. https://doi.org/10.3390/en14133988

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