Title :
Large-signal modeling and stability analysis of two-cascaded boost converters connected to a PV panel under SMC with MPPT
Author :
Haroun, Reham ; El Aroudi, Abdelali ; Cid-Pastor, Angel ; Garcia, Gaetan ; Martinez-Salamero, Luis
Author_Institution :
Univ. Rovira i Virgili, Tarragona, Spain
Abstract :
In this paper, a system consisting of two cascaded dc-dc boost converters under sliding-mode control, working as loss free resistors, connected to a PV panel is studied. The modeling, simulation and design of the system are addressed. First, an ideal reduced-order sliding-mode dynamics model is derived from the full-order switched model taking into account the sliding constraints and stability analysis is carried out. It is shown that the cascade connection of boost-based loss free resistors can be a good solution for the impedance matching in PV systems with the standard 380 V dc bus voltage.
Keywords :
DC-DC power convertors; impedance matching; maximum power point trackers; photovoltaic power systems; power generation control; power system stability; reduced order systems; resistors; variable structure systems; MPPT; PV panel; PV systems; SMC; boost-based loss free resistors; full-order switched model; ideal reduced-order sliding-mode dynamics model; impedance matching; large-signal modeling; sliding constraints; sliding-mode control; stability analysis; system design; system modeling; system simulation; two cascaded dc-dc boost converters; voltage 380 V; Analytical models; Generators; Impedance matching; Mathematical model; Numerical models; Stability analysis; Switches; Boost converter; Loss-Free Resistor (LFR); MPPT; POPI; Photovoltaic (PV); Sliding Mode Control (SMC);
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6699261
