Title :
Model of smart solar PV charge controller
Author_Institution :
Dept. of Electr. Eng., Stony Brook Univ., Stony Brook, NY, USA
Abstract :
The development of smart solar grids will help to provide concentration of power within the grid and eliminate the power losses seen when panels are working insufficiently. It will also allow switching between panels to provide optimal battery charging. Each panel will be characterized by their open circuit voltage and short-circuit currents. This paper presents approaches to implementation of this idea and various uses which will help analyze the functionality of a smart solar grid in the residential market. In particular, implementation of such a system would allow users to program switching between two, and eventually more, independently controlled solar cells, allowing for optimal battery charging according to the panels´ electrical outputs. This platform therefore requires a large portion of programming to be integrated with the solar cells as well as the switching interface. Data will need to be stored and computations made to determine the optimal circuitry configuration. One constraint that is already a problem would be the number of cells which can be continually monitored by the program. More cells require either more time to compute data or a faster data processing center, either of which would cost money in the end. In the case of multiple solar cells producing similar output voltages, more than one switch may need to be turned on therefore allowing multiple solar cells, or panels, to take part in charging the battery. With a large portion of this design based solely on a software interface, it becomes hard to design hardware architecture that allows for faster processing. The limitations of the project are based on the limitations of the software developed. Overall performance increases in battery charging efficiency will help balance out any cost or time constraints that may occur during the implementation of such a project.
Keywords :
battery charge measurement; power engineering computing; solar cell arrays; battery charging efficiency; open circuit voltage; program switching; residential market; short circuit current; smart solar PV charge controller; smart solar grid; software interface; solar cell; switching interface; Batteries; Layout; Photovoltaic cells; Programming; Smart grids; Software; Testing; efficeincy; independently controlled; optimal charging;
Conference_Titel :
Systems, Applications and Technology Conference (LISAT), 2011 IEEE Long Island
Conference_Location :
Farmingdale, NY
Print_ISBN :
978-1-4244-9878-9
Electronic_ISBN :
978-1-4244-9877-2
DOI :
10.1109/LISAT.2011.5784245