A Novel Cost Effective and Highly Dynamic Power Hardware in the Loop (PHIL) System for Automotive Traction Inverter Testing

Abstract

This paper presents a novel low-cost and highperformance Power Hardware in the Loop (PHIL) test system for electric motor emulation and automotive traction inverter testing. The proposed PHIL test setup utilizes a simple back-toback configuration with a shared DC link, eliminating the need for a full-power voltage source or additional DC/DC converter. Furthermore, no multiphase multilevel converter or increased switching frequency is required. Thus, it greatly reduces the overall system cost and space consumption. The primary innovation lies in a new control methodology that ensures stability, accuracy, and high dynamic response. It guarantees high performance despite the low-cost setup. With a real-time motor model running at 5 MHz on an FPGA, the PHIL test bench can emulate an arbitrary PMSM with nonlinear characteristics including saturation and cross saturation. Full-power tests for both stationary and transient operation states have been conducted. Experimental results prove the feasibility as well as the outstanding performance of the proposed PHIL test system.

Authors 3

1. Michael Schubert
   Affiliation as printed

   Leadrive Technology Germany GmbH,Aachen,Germany

2. Marcel Reisner
   Affiliation as printed

   Leadrive Technology Germany GmbH,Aachen,Germany

3. Rik W. De Doncker Aachen Institute for Power Electronics and Electrical Drives (ISEA)

   RWTH Aachen University

   Affiliation as printed

   Institute for Power Electronics and Electrical Drives (ISEA), RWTH Aachen University,Aachen,Germany