| |
Photovoltaic System MPPTracker Investigation and Implementation using DSP Engine and Buck-Boost DC-DC Converter
| [View]
[Download]
|
| Author(s) |
Dimosthenis Peftitsis, Panagiotis Bakas and Anastasios Balouktsis |
| Abstract |
In this paper, solar radiation simulation using clearness index kt, hour of day ωs and day of year n is studied. Daily distributions of solar radiation are presented for various clearness indexes kt. Additionally, taking into account the studies about solar radiation, a photovoltaic array system and a DC/DC buck - boost converter are studied. Simulation of the whole system is presented focusing on DC/DC converter's control strategy so that the system operates in maximum power point (MPP) and converter's output voltage remains constant. Incremental conductance algorithm is used for maximum power point tracker (MPPT) implementation. A simplest method for controlling duty cycle D and photovoltaic array's voltage by using a new variable d = D1/1-D is proposed. Simulation results are shown and analyzed. For the implementation of this system, the dsPIC30F2010 Microchip's microcontroller was programmed to provide pulses to the semiconductor element of the DC-DC converter in order to track the Maximum Power Point (MPP) of the photovoltaic array. |
| Download |
| Filename: | 302.pdf |
| Filesize: | 410.4 KB |
|
| Type |
Members Only |
| Date |
Last modified 2008-12-07 by System |
| |
 |