01-05-2012, 05:29 PM
Design of FPGA Based Solar Power Inverter
[attachment=21019]
INTRODUCTION
In the present study, a solar (PV) power system
has been proposed with simple technology which
can work as a standalone device or as a primary
source of hybrid power supply system (i.e.
integrating PV system with Grid / DG set). [1]
Solar Photovoltaic module
A solar photovoltaic module is the basic
element of each photovoltaic system. It converts
solar energy into DC electricity when sunlight falls
on its surface. This DC signal is converted to AC
by inverter to meet AC load requirement of houses.
B. Solar inverter cum charge controller with
Intelligent logic control
Solar Inverter converts DC power from
battery, charged from PV source, to AC power
compatible with the utility and AC loads. This unit
consists of solar inverter cum charge controller
with intelligent logic which controls the charging
of battery from solar or mains or both with solar as
priority in sharing mode. This system monitors the
battery charging status and accordingly decides to
charge the battery either from solar or from mains
or both in sharing mode.
C. Battery
A device that converts the chemical energy
contains in its active material directly into electrical
energy by means of an electrochemical reaction.
Low maintenance tubular type batteries are
provided with the system. Battery deep discharge,
over charge protections are incorporated inside the
solar converter.
CONCLUSION
The performance of the proposed system is
better and its software controlled features offer
more flexibility as compared to other PV converter
system.
The use of FPGA technology to generate
PWM pulses for solar inverter using Verilog HDL
programming language has successfully been
implemented in the present study. The software
controlled programme can alter the inverter
parameter(s) and can easily be outputted through
FPGA board
[attachment=21019]
INTRODUCTION
In the present study, a solar (PV) power system
has been proposed with simple technology which
can work as a standalone device or as a primary
source of hybrid power supply system (i.e.
integrating PV system with Grid / DG set). [1]
Solar Photovoltaic module
A solar photovoltaic module is the basic
element of each photovoltaic system. It converts
solar energy into DC electricity when sunlight falls
on its surface. This DC signal is converted to AC
by inverter to meet AC load requirement of houses.
B. Solar inverter cum charge controller with
Intelligent logic control
Solar Inverter converts DC power from
battery, charged from PV source, to AC power
compatible with the utility and AC loads. This unit
consists of solar inverter cum charge controller
with intelligent logic which controls the charging
of battery from solar or mains or both with solar as
priority in sharing mode. This system monitors the
battery charging status and accordingly decides to
charge the battery either from solar or from mains
or both in sharing mode.
C. Battery
A device that converts the chemical energy
contains in its active material directly into electrical
energy by means of an electrochemical reaction.
Low maintenance tubular type batteries are
provided with the system. Battery deep discharge,
over charge protections are incorporated inside the
solar converter.
CONCLUSION
The performance of the proposed system is
better and its software controlled features offer
more flexibility as compared to other PV converter
system.
The use of FPGA technology to generate
PWM pulses for solar inverter using Verilog HDL
programming language has successfully been
implemented in the present study. The software
controlled programme can alter the inverter
parameter(s) and can easily be outputted through
FPGA board