Rastreio do ponto de máxima potência em um sistema fotovoltaico e compensador série integrados a um inversor de nove chaves

Abstract

This work includes a Maximum Power Point Tracking (MPPT) algorithm in a system that works with two devices integrated into a nine-switch inverter (NSI - Nine Switches Inverter). This inverter is powered by a photovoltaic generation, which is connected to its DC link, through a boost converter. The two functionalities of this system are the insertion of active power into the grid and the dynamic restoration of the load. The use of an NSI reduces the cost of building the inverter, as a single device has the function of an inverter and a Dynamic Voltage Restorer (DVR - Dynamic Voltage Restorer), reducing the number of keys in the assembly of the system from 12 to 9 and consequently reducing costs. The control, operation and modulation simulations were performed with the help of the Simulink/MATLAB® platform. The entire operating scheme of the integrated system will be presented in the remaining chapters of this text. Furthermore, the entire simulated system was also tested in the OPAL-RT® real-time simulator.