摘要：The main idea of this paper is to study a photovoltaic energy conversion chain for the production of electrical energy on isolated sectors with control, faults diagnostic and reconfiguration of the used Three-level boost converter. A method for the control of Three-level boost converter was proposed to achieve three goals: to track the PV maximum power point (MPPT), to ensure the voltage balance and to regulate the DC link voltage. Further, in order to maintain the operation of the PV chain, detection, localization and reconfiguration methodology of open circuit fault, which might occur due to a failure of one power switch of the Three-level boost converter, is proposed. Finally, simulation investigations under Matlab/Simulink environment were performed to check the effectiveness, feasibility and reliability of the proposed fault tolerant strategy.
