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Article Dans Une Revue Revue Roumaine des Sciences Techniques. Serie Électrotechnique et Énergétique Année : 2023

Experimental analysis of hybrid energy storage system based on nonlinear control strategy

Résumé

In this paper, a nonlinear integral sliding mode control for a hybrid energy storage system (HESS) based stand-alone dc microgrid has been proposed and applied experimentally. This hybrid system comprises a PV, super-capacitor, and battery. A classical PI-based linear control strategy has been designed to control battery and super-capacitor systems based on decoupling the high and low-frequency components to estimate reference current. Since the frequent discharge during operation, supercapacitor power can reach the lowest value, affecting controller performance and making the system unstable. From the experimental result, a nonlinear Integral sliding mode control ISMC is performed as an inner loop controller to regulate battery and super-capacitor power. Also, the PI controller is implemented as an outer loop controller to regulate the dc-link. The proposed control approach is compared with the linear PI controller to improve life extension and minimize stress on the battery. As a result, the proposed control strategy has achieved high dynamic system performance.
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Dates et versions

hal-04102168 , version 1 (22-05-2023)

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Paternité

Identifiants

  • HAL Id : hal-04102168 , version 1

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Youcef Oubbati, Brahim Khalil Oubbati, Abdelhamid Rabhi, Salem Arif. Experimental analysis of hybrid energy storage system based on nonlinear control strategy. Revue Roumaine des Sciences Techniques. Serie Électrotechnique et Énergétique, 2023, 68 (1), pp.96-101. ⟨hal-04102168⟩
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