Stability and Accuracy Analysis of Power Hardware-in-the-loop Simulation of Inductor Coupled Systems

Abstract

This paper focuses on the stability issue of power hardware-in-the-loop (PHIL) simulation of inductor coupled systems. Main factors which influence the stability of this type system are analyzed and verified through experiments. A method to resolve the instability problem of the PHIL simulation without decreasing the simulation accuracy is also proposed. Moreover, a PHIL simulation of a gas engine cogeneration system with a matrix converter is introduced and the application of proposed method to improve stability is demonstrated.