Solar based Air Conditioner with BLDC Motor and Battery Backup

This paper proposes the designing of an air conditioner utilizing solar energy obtained from photovoltaic (PV) panels. In this proposed system maximum power is obtained from PV panel by the help of perturb & Observe (P&O) tracking algorithm. Duty cycle of buck-boost converter, which maintains the voltage at the output of the inverter to control the brushless DC (BLDC) motor to drive the compressor and blower is controlled by perturb and observe technique. Battery is connected to the system through a charge controller to increase the trustworthiness of the system. The proposed air conditioner is designed to obtain satisfactory system performance even under dynamic conditions. The performance and effectiveness of the system is evaluated and verified using simulation.