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1. BATTERY ENERGY STORAGE FOR ENABLING
INTEGRATION OF DISTRIBUTED SOLAR POWER
GENERATION
Abstract:
The integration of significant amounts of photovoltaic (PV) solar power generation to the
electric grid poses a unique set of challenges to utilities and system operators. Power from gridconnected solar PV units is generated in quantities from a few kilowatts to several MW, and is
then pushed out to power grids at the distribution level, where the systems were often designed
for 1-way power flow from the substation to the customer. In climates with plentiful sunshine,
the widespread adoption of solar PV means distributed generation on a scale. In this paper, the
solar power is efficiently used to run a load.
Existing system:
In the existing system the load is made to run by directly applying the solar power. The
disadvantage here is that the solar output varies constantly which may lead to the damage of
loads.
Proposed system:
In the proposed system, a boost converter is used with the solar panel to enhance the DC
output of the panel. The boosted output is monitored and if it is sufficient to run the load it is
directly applied to the load. If not the power is used to charge the battery and power from the
battery is used to run the load. Since battery is used the power supplied is regulated. This
prevents damaging of loads.

2. Block Diagram:
Power
Supply
PIC
LCD
Boost
Converter
Solar
Panel
DPDT
Switch
DC
Motor
16F877A
Micro
Controller
Battery
Hardware requirements:
 PIC16F877A Microcontroller with Power Supply
 6V Solar Panel
 Boost Converter
 LCD
 DPDT switch
 9V Battery
 DC Motor
Software requirements
 Embedded c
 MPLab Compiler or CCS Compiler
Advantages
 Damage due to higher current rating is prevented.