High Efficient Solar Grid System
Keywords:
Relay, MPPT, Microcontroller, BatteryAbstract
Generally solar panels are used to generate electricity by receiving light energy from the sun. In a conventional solar power system, parallel connections are made between two panels. In a parallel connection, current gets summed up and the voltage remains the same. During day time, the light intensity will be very less which is not sufficient to charge the battery because of the low voltage. At this time if series connections are made between the solar panels, the voltage gets summed up which is sufficient to charge the battery. Whenever the sun light falls on the solar panel, the electrical energy is produced. When the light intensity is less, there will be less voltage at the output of the panel which is not sufficient to charge the battery. If the output voltage is below the threshold value, the control unit sends a signal to the connection switching module to change the connection from parallel to series. Our project is to design a module which automatically switches the series and parallel connections of the solar panels based on the light intensity.
References
- Morgan Baziliana; et al. (17 May 2012). Re-considering the economics of photovoltaic power. UN-Energy (Report) (United Nations). Retrieved 20 November 2012.
- KING, R.R., et al., Appl. Phys. Letters 90 (2007) 183516.
- "SunPower e20 Module".
- "HIT® Photovoltaic Module". Sanyo / Panasonic. Retrieved 24 December 2012.
- "Improving the efficiency of solar panels". The Hindu. 24 October 2013. Retrieved 24 October 2013
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