Real-time HIL simulation of a complete PMSM drive at 10 /spl mu/s time step

Abstract

This paper presents the fastest-ever-reported, real-time (RT) simulation of an AC drive on PC-cluster. The RT simulator is used to simulate a complete PMSM drive circuit in a hardware-in-the-loop (HIL) application. It consists of a PMSM fed by a 3-phase IGBT inverter, a DC link capacitor and a 3-phase diode bridge. This drive model runs in RT and is connected to an external controller by analog and digital inputs and outputs for closed loop operation. The main innovation in this work is that the real-time simulation cycle is as low as 10 mus, which constitutes to our knowledge the shortest RT simulation time step ever reported for electric drives with this level of details in modeling the drive circuit