An improved second‐order sliding mode control for the distributed generation system in stand‐alone and grid‐connected modes. (15th October 2017)

• Record Type: Journal Article
• Authors: Elnady, A.; Sinan, S.
• Is Part Of: International transactions on electrical energy systems. Volume 27:Number 11(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-10-15
• Subjects: distributed generation system -- first older SMC -- grid‐connected mode -- improved super‐twisting technique -- second‐order SMC -- stand‐alone mode; Electric power -- Periodicals; Electric power systems -- Periodicals; Electrical engineering -- Periodicals; 621.3
• DOI: 10.1002/etep.2419
• Languages: English
• ISSNs: 2050-7038

Abstract

Summary: The paper presents an innovative application of an improved second‐order sliding mode control, (super‐twisting technique) on the distributed generation system. The meritorious performance of the presented super‐twisting technique is validated by comparing its performance to several versions of the SMC (regular super‐twisting, conventional first‐order SMC and proposed version of the first‐order SMC). The presented super‐twisting technique is used to develop a novel control scheme in order to enable the distributed generation system to work in a grid‐connected mode and a stand‐alone mode, and to seamlessly transfer from a specific mode to another. The core of the adopted distributed generation system is a distributed generation unit, which is the multilevel, 5‐level, diode clamped inverter so as to minimize the injected switching harmonics. Eventually, the simulation results are depicted to show the merits of the presented super‐twisting technique and how the proposed control scheme operates the distributed generation system such that its output power/voltage can be efficiently controlled in different modes of operation.