• Karampoodi Vijayan
• Dr. K. Govinda Rajulu

solar power has many applications like street lighting, water heating, residence, industrial and agricultural uses. It is available plentiful in nature. Normally to collect the solar energy photo voltaic panels are used. Electrical parameters of solar panel are highly sensitive to dust accumulation and it will have an effect on performance of the solar panel thereby decrease its efficiency. One of the wonderful methods to enhance the efficiency of photovoltaic panel is by removing the dirt collected on its surface. Cleaning of solar panels is challenging task. Normally solar panels are washed manually with water but this way of cleaning is no longer economical and reliable. In view of this an automatic cleaning mechanism is designed and fabricated. The designed automatic cleaning mechanism consists of LDR in order to identify the dust accumulation on solar panel surface. If there is any dirt on the solar panel, light rays continuously falling on the panel reduces for this reason the output of LDR reduces and these signals are fed to AT89S52 microcontroller. By comparing these signals with preset records values the microcontroller will drives the driver circuit and rotate the motor to clean the panel. Efficiency is recorded by taking the number of voltage and current readings of solar panel with dust and without dust on it for various times in day. By calculating this recorded values efficiency is determined for particular solar panel. This designed automatic cleansing system is an effective and cheap technique for cleansing of solar panels. It will remove irregularities in the power production of a solar panel due to presence of dust. By experimental investigation it is proved average efficiency of solar panel increases up to 2.03% by regular cleaning.

LDR, driving circuit, Microcontroller

"AUTOMATIC DUST SENSING AND CLEANING OF SOLAR PANEL BY USING MICROCONTROLLER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.390-394, June 2019, Available :http://www.jetir.org/papers/JETIR1906K44.pdf

"AUTOMATIC DUST SENSING AND CLEANING OF SOLAR PANEL BY USING MICROCONTROLLER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp390-394, June 2019, Available at : http://www.jetir.org/papers/JETIR1906K44.pdf