Simulation of a solar powered air compressor

In this paper we discuss the simulation of a solar powered air compressor comprising a cylinder and a compressor coupled to a vector controlled induction motor which is fed from a photovoltaic array with maximum power point tracking (MPPT). The induction motor speed is controlled to maintain a constant pressure in the cylinder. In the model, the effect of temperature difference between the inside and outside of the cylinder on compressor efficiency is taken into account. The model is used to investigate the operation of the system and provide an insight into the effect of temperature, load and output flow rate on system efficiency. The model will help with design of the control system.