INTELLIGENT POWER SAVER USING SUPERCAPACITOR

Sathish.P, Ponmanisundar.S

Abstract: Electricity bill has become the highest house hold expense every month. Due to frequent power cuts we are forced to use Uninterrupted Power Supply which also increases the power consumption because of the bad efficiency of the batteries. Though we have good efficiency batteries of Lithium ion categories it won’t be suitable for middle class houses due to the high cost of the battery. Our mind thinks about the utilization of free energy from the sun, but the cost of solar panels to utilize the energy is the question mark now. So our idea is to use supercapacitors to reduce solar panel rating and make a solar house possible even for middle class houses. A simple RC circuit in which C is a supercapacitor will be a solution for this problem. The parallel RC circuit is generally used because the output voltage is equal to the input voltage. The current rating is thus increased since the capacitor output has higher power density. Thus the panel required to charge a UPS battery can be reduced to 1/5th of the generally required size. It can be used in solar powered or electrically operated battery vehicles. Though solar or electrical vehicles have lot of advantages than the fuel ones, it is not being used in great extent because it cannot provide the initial torque as a normal vehicle does. Supercapacitors can be a solution for those kinds of problems so that the vehicle can match all the features such as speed, torque like a normal vehicle. This circuit consists of a 48V lithium ion battery, controller, high Farad supercapacitor, sensor and the brushless dc motor acts as the load. Thus the sensor senses the places where high power is required and sends to the controller. The controller uses the supercapacitor to deliver high power to the load. As the speed picks up the sensor again sends the information to the controller and the controller uses the battery to deliver power to the load. Thus supercapacitor is used in two major applications. They are: To reduce the panel rating so that the panel cost will not be a problem to charge ups batteries and thus the electricity bill is drastically reduced and also Solar or electrically operated vehicles is made functionally similar to that of a normal fuel operated vehicles

Keywords: Supercapacitor, Li-ion Battery, Solar Panel, Hybrid Vehicles

DOI: https://doi.org/10.15623/ijret.2016.0515001