Title :
PV Solar Energy Electronics Processing System Operating at the MPP for Commercial Refrigerator Supply Applications
Author :
Martins, D.C. ; Silva, D. P da ; de Andrade, A.S. ; Bottion, A.J.B. ; de Souza, K.C.A.
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Santa Catarina, Florianopolis
Abstract :
The analysis of a PV solar energy electronics processing system, operating at the maximum power point (MPP) for commercial refrigerator supply applications is presented in this paper. The refrigerator is fed from a battery bench using two electronics processing stages. The first one is a step-up push-pull converter that is responsible for the dynamic of the refrigerator and the DC bus voltage control, and the second stage is a full-bridge voltage source inverter with three levels PWM modulation. A closed-loop voltage is used to control the step-up stage, and a closed-loop current to control the compressor starting current. The main features of this system are: simple control strategy, robustness, low harmonic distortion of the load voltage, and natural isolation. The principle of operation, design procedure and experimental results are presented
Keywords :
PWM invertors; closed loop systems; electric current control; harmonic distortion; photovoltaic cells; power convertors; refrigerators; robust control; solar power; DC bus voltage control; MPP; PV solar energy electronics processing system; battery bench; closed-loop current; closed-loop voltage; commercial refrigerator supply; compressor starting current control; full-bridge voltage source inverter; low harmonic distortion; maximum power point; natural isolation; step-up push-pull converter; three levels PWM modulation; Batteries; Control systems; Hydroelectric power generation; Photovoltaic systems; Pulse width modulation converters; Pulse width modulation inverters; Refrigeration; Solar energy; Solar power generation; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th
Conference_Location :
Recife
Print_ISBN :
0-7803-9033-4
DOI :
10.1109/PESC.2005.1581627
