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Open AccessArticle

Real-Time Implementation of Robust Control Strategies Based on Sliding Mode Control for Standalone Microgrids Supplying Non-Linear Loads

École de Technologie Supérieure, University of Quebec, Montreal, QC H3C 1K3, Canada
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Energies 2018, 11(10), 2590; https://doi.org/10.3390/en11102590
Received: 31 July 2018 / Revised: 17 September 2018 / Accepted: 24 September 2018 / Published: 28 September 2018
(This article belongs to the Special Issue Power Quality in Microgrids Based on Distributed Generators)
In this paper enhanced control strategies for standalone microgrids based on solar photovoltaic systems (SVPAs) and diesel engine driven fixed speed synchronous generators, are presented. Single-phase d-q theory-based sliding mode controller for voltage source converter voltage source converter (VSC) is employed to mitigate harmonics, balance diesel generator (DG) current, and to inject the generated power by SVPA into local grid. To achieve fast dynamic response with zero steady-state error during transition, sliding mode controller for inner control loop is employed. To achieve maximum power point tracking (MPPT) from SVPA without using any MPPT method, a DC-DC buck boost converter supported by battery storage system is controlled using a new control strategy based on sliding mode control with boundary layer. In addition, modeling and detailed stability analysis are performed. The performance of the developed control strategies, are validate by simulation using MATLAB/Simulink and in real-time using hardware prototype. View Full-Text
Keywords: standalone microgrid; sliding mode control; solar photovoltaic system; diesel generator; power quality improvement; stability analysis standalone microgrid; sliding mode control; solar photovoltaic system; diesel generator; power quality improvement; stability analysis
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Benhalima, S.; Miloud, R.; Chandra, A. Real-Time Implementation of Robust Control Strategies Based on Sliding Mode Control for Standalone Microgrids Supplying Non-Linear Loads. Energies 2018, 11, 2590.

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