PORTABLE ROBOT SYSTEM FOR CLEANING SOLAR PANEL

PRESENTED BYRAVI S BIRADAR

CONTENTS Introduction Environmental factors affecting efficiency of PV panels Methods used to clean PV panels Before & After

Cleaning Construction and working of robot Robot operation and controller sub system Applications Advantages and Disadvantages Future scope

INTRODUCTION Accumulation of dust from the outdoor environment on the

panels of solar photovoltaic(PV) system is natural.

It was found from the study that the accumulated dust on the surface of photovoltaic solar panel can reduce the surface of photovoltaic solar panel can reduce the system’s efficiency by up to 50%

It is very important to remove dust from the solar cells. With the help of robot on the bases of object able sensor we can remove dust from dust from solar panels and increase the efficiency of solar cells.

ENVIRONMENTAL FACTORS AFFECTING EFFICIENCY OF PV

PANELS

Shadow Snow Externally high temperature Dust, dirt, bird droppings, pollen and sea salt

Methods used to clean PV panels

Heliotex technology

The PV cleaner V1 robot

The Sun Brush robot

Cleaning Vacuum i7 Robot

CONSTRUCTION AND WORKING OF ROBOT

The robot mainly consists of: two brushes on the extreme ends, four wheels, four motors, sensors and controller subsystem

Two motors are installed on each side of the robot frame. On motor is used to drive two wheels and the other motor is used to drive one brush.

The connecting rods and brushes can be modified with the same driving system.

CONTINUE

(1. brush, 2. wheels, 3. motors, 4. connecting rods, 5.side panels, 6. wheel driving system, 7. brush driving system)

ROBOT OPERATION AND FLOW CHART

The flow diagram of robot cleaning subsystem operation steps. Initially, the robot stationed at the panel end waits the user start command

Once the command is received the brushes start working and then the robot starts moving in one direction while cleaning the panel.

During the operation, the robot keeps moving at constant speed until the sensors signal reaching the panel edge at which point the robot slows down and stops.

CONTROLLER SUB SYSTEM

To ensure autonomous movement of the robot, a control system is implemented . On-off control scheme was adopted based on Arduino microcontroller.

motor controller and infrared sensors

were used to provide the robot with the necessary feedback about the PV panel boundaries.

The mode filter was used for processing of the collected signals from the infrared sensors.

MOVEMENT OF THE ROBOT ON PANEL

CONTINUE... The robot transfer from one panel to another, the system consists of two main parts; the first is the cleaning robot and the second is the automated carrier cart (see figurer1). The carrier 1part is a cart that moves on a rail platform. The cart transfers the robot from one panel to the next. sequence of the system is shown in Figure 2. That is, the carrier cart aligns itself with the solar panel at which point the robot leaves the cart to clean the panel through forward and backward sweeps (Figure 2-1) and returns to the cart which transports the robot to the next panel (Figure 2-2). Then, the robot performs the cleaning sweeps as before (see Figure 2-3).

BEFORE & AFTER CLEANING

Show in figure divide in to two parts of the solar panel First part the before dust cleaning of solar panel. And 2nd part after dust cleaning of the solar panel.

APPLICATIONSSolar park

Solar water plants

Solar house

ADVANTAGES Increases the efficiency of solar plate.

Sometimes dust or other particles long time placed on solar cells so it damages the aluminium strip of solar plate. so we avoid this damage by this system .

By this system we make the life of this of this plate longer then other plates.

DISADVANTAGES

Cost of this system is more then other system.

FUTURE SCOPE In the future, the robot’s software can be developed to be smarter,

such as that when it cleans any PV panel surface, it will save the information about ledges, size and its location.

It is proposed that future work should concentrate on replacing the automated cart system by a flying mechanism such as quadrotor.

A quadrotor can be mounted onto the robot cleaning subsystem so that it can fly from one solar panel to another.

This system can then be controlled remotely or fully programmed for outdoor environment,

CONCLUSION Dust accumulation on PV panels can significantly

reduce their power output. While the GCC region is solar-energy rich, the desert conditions are quite dusty threatening the PV systems power generation potential. The robotic system proposed in this paper is a simple way to tackle this challenge effectively.

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THANK YOU…