Discrete-time Model Following Control of Inverter with Rectifier Load

Abstract

Electronic apparatus, such as a computer, are a capacitor input type rectifier load for a power supply. The rectifier load causes the fact that a power source voltage waveform is distorted.
This paper describes the output voltage characteristic of the single phase PWM inverter applied a discrete-time model following control to the rectifier load. First the rectifier load model of a discrete time system is considered. Next, the discrete- time model following control system used for this load is described. Then, a simulation result and an experimental result are examined. The simulation results is shown that this method has robustness to the load change. The experimental system consists of an inverter controlled by a digital signal processor (DSP) and the rectifier load. The validity of a simulation result is shown by the experiment.