Sliding Mode Control of Hybrid Renewable Energy System Operating in Grid Connected and Stand-Alone Mode

• Autorzy: Benadli Ridha , Bjaoui Marwen , Khiari Brahim , Sellami Anis

Identyfikatory

DOI

10.2478/pead-2021-0009

• Języki publikacji: EN

Abstrakty

EN

This paper studies innovative application of sliding mode control (SMC) for a Hybrid Renewable Energy System (HRES) in grid-connected and autonomous modes of operation. The considered HRES includes a photovoltaic (PV), wind turbine (WT) based on a Permanent Magnet Synchronous Generator (PMSG). The PV generator is coupled to the common DC bus via a DC/DC converter. The latter is controlled by an MPPT algorithm based on the Adaptive Perturbation and Observation Algorithm Method (APOAM) to search the optimum working of this source. A SMC is utilized to manage the PV voltage to achieve the Maximum Power Point (MPP) by altering the obligation duty cycle. The battery interfaced by a bidirectional buck-boost DC/DC converter can be charged or discharged depending on the production situation. On the one hand, the wind turbine conversion chain is equipped with a PMSG and a rectifier controlled to regulate the operating point of the wind turbine to its optimum value. During a Stand-Alone Mode (SAM) operation, the Voltage Source Converter (VSC) was used for controlling the output voltage in terms of amplitude and frequency delivered to the AC load. However, in Grid-Connected Mode (GCM) operation, the VSC was adapted to control the electrical parameters of the grid. To better appreciate the advantages of the proposed SMC approach, we have proposed a series of comparative tests with the conventional PI control in the operating modes GC and SA and under different scenarios. The proposed control strategy has undeniable advantages in terms of control performance and very low total harmonic distortion THD value compared with the conventional PI control. Finally, It is concluded that the proposed approach improves the quality and provides a stable operation of the HRES.

Słowa kluczowe

EN

sliding mode control; grid-connected mode; stand-alone mode; hybrid renewable energy system; wind turbine; photovoltaic; battery energy storage system; maximum power point tracking

• Wydawca: De Gruyter
• Czasopismo: Power Electronics and Drives
• Rocznik: 2021
• Tom: Vol. 6 (41)
• Strony: 144--166
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Benadli Ridha

• LANSER Laboratory/CRTEn B.P.95 Hammam-Lif 2050, Tunis-Tunisia

• https://orcid.org/0000-0002-4073-2412

autor

Bjaoui Marwen

• LANSER Laboratory/CRTEn B.P.95 Hammam-Lif 2050, Tunis-Tunisia

autor

Khiari Brahim

• LANSER Laboratory/CRTEn B.P.95 Hammam-Lif 2050, Tunis-Tunisia

autor

Sellami Anis

• Research unit: LISIER, National Higher Engineering School of Tunis, Tunis-Tunisia

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