Performance Robustness of PID Controller in Buck Converter For Cooling System

When driving in the long journey to store the beverages required cooling system that can keep drinks stay fresh and the quality is maintained when it is about to be consumed. However, many cooling systems are now made using compressor and freon systems which use chemicals that are not environmentally friendly, and consume a lot of energy from car batteries. So that the need for other sources of energy that its use will never run out, that is by the use of solar energy with solar cells. However, the output voltage generated by solar cells is always changing based on the intensity of light and weather conditions. Need a control that can adjust the output voltage of solar cells to be stable, if there is any change of output voltage then the controller will be active and quickly restore the voltage in a stable state. Therefore, this paper presents a cooling system that uses solar cells as an energy source which later output voltage will be derived using a DC-DC Buck Converter. Then the output voltage of this buck converter is controlled by the PID control which will be fed back by the voltage sensor for battery charging process. This battery will be an energized source for Peltier as a cooling device in the cooling beverage system. It is hoped that from this paper can be designed and implemented environmentally friendly cooling system and utilize renewable energy and save energy on car battery.