Title :
A PIC controller for grid connected PV system using a FPGA based inverter
Author :
Lima, J.C. ; Corleta, J.M. ; Medeiros, A. ; Canalli, V.M. ; Antunes, F. ; íbano, F. B LF ; Dos Reis, F.S.
Author_Institution :
Pontificia Univ. Catolica do Rio de Janeiro, Brazil
Abstract :
The propose of this work is to describe the implementation of a controller for tracking the point of maximum power transfer based on neural networks, using a microcontroller of the PIC family, on energy systems that use photovoltaic panels. A neural network is used to determine, at each instant, the output voltage in a DC-DC boost converter connected to the solar panels, in way to obtain the maximum power transfer of these panels. This implementation releases the use of a great performance computer, once the neural network was already trained and this way, it can be implemented in a dedicated system. The maximum power transfer of the system is obtained adjusting the duty cycle of the DC-DC boost converter. One three-phase inverter was implemented with a new control circuit to generate the PWM signal
Keywords :
DC-AC power convertors; DC-DC power convertors; field programmable gate arrays; invertors; microcontrollers; photovoltaic power systems; power system control; solar cell arrays; DC-DC boost converter; FPGA based inverter; PIC microcontroller; PWM signal generation; duty cycle; grid-connected PV power system; maximum power transfer point tracking; neural networks; photovoltaic panels; solar panels; Computer networks; Control systems; DC-DC power converters; Field programmable gate arrays; Microcontrollers; Neural networks; Photovoltaic systems; Pulse width modulation inverters; Solar power generation; Voltage;
Conference_Titel :
Industrial Electronics, 2000. ISIE 2000. Proceedings of the 2000 IEEE International Symposium on
Conference_Location :
Cholula, Puebla
Print_ISBN :
0-7803-6606-9
DOI :
10.1109/ISIE.2000.930506