Design and Implementation of an IDA-PBC for a Grid Connected Inverter used in a Photovoltaic System. Issue 1 (2018)

• Record Type: Journal Article
• Authors: Barman, Saumitra; Samanta, Soumya; Mishra, Jyoti Prakash; Roy, Prasanta; Roy, Binoy Krishna
• Is Part Of: IFAC-PapersOnLine. Volume 51:Issue 1(2018)
• Page Start: 680
• Page End: 685
• Publication Date: 2018
• Subjects: Passivity based control -- Port control Hamiltonian -- Interconnection -- damping assignment -- Grid connected inverter -- Photovoltaic energy conversion system; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2018.05.114
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: The paper presents an interconnection damping assignment - passivity based control (IDA-PBC) strategy applied to a grid-connected inverter interfaced Photovoltaic (PV) system. The PV power plant is integrated to the grid using a pulse-width-modulated converter. This is done to extract maximum energy from the renewable resource and feed it to the grid. The main contribution of this paper is to design a nonlinear control law based on IDA-PBC with a desired energy function along with an integral action. In the design of IDA-PBC, the Hamiltonian function is considered as a Lyapunov function candidate for analysing the stability criteria. In this paper, a step by step design procedure of the IDA-PBC is presented and the performance of the controller is compared with a conventional PI-based controller. A simulation study of the system is carried out in Matlab/Simulink environment. Finally, the simulation results show that the IDA-PBC with an integral action performs better during both transient and steady state conditions as compared with the PI-based controller.