Abstract:
This paper presents the real time simulation of electric machine control and drive by
using hardware-in-the-loop (HIL) simulation technology. In our research
implementations, two simulation loops for the control and drive of the same machine
are built. One simulation loop is formed using the actual machine. Another simulation
loop is formed using a physics-based phase variable model of the same machine. The
physics-based phase variable model of the machine is developed from the solutions of
nonlinear transient Finite Element (FE) computations covering a complete ac cycle. The
developed physics-based base model includes both the time and space harmonics
representing the effects of rotor position, slotting, and nonlinear magnetization of the
core, etc. The hardware-in-the-loop simulation of the machine drives provides an
experimental environment for examining the machine model and studying the control
algorithm. A 2-hp 6-pole PM synchronous machine is used to present the physics-based
phase variable modeling; a 10-pole PM machine is used to demonstrate the hardware-inthe-
loop simulation with the actual machine and its physics-based model.