Investigation of the Suitability of an Electrical Machine Emulation for EMC Component Tests of Drive Inverters

Conference: PCIM Europe digital days 2021 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/03/2021 - 05/07/2021 at Online

Proceedings: PCIM Europe digital days 2021

Pages: 7Language: englishTyp: PDF

Authors:
Gruber, Michaela; Beltle, Michael; Tenbohlen, Stefan (University of Stuttgart, Institute of Power Transmission and High Voltage Technology, Germany)
Fischer, Manuel (University of Stuttgart, Institute for Power Electronics and Electrical Drives, Germany)

Abstract:
To ensure the electromagnetic compatibility (EMC) of drive inverters, EMC tests are supposed to be performed under realistic load conditions. Traditional approaches, as the use of an additional load machine or passive impedance network, are either expensive or provide only a fixed impedance. This paper introduces a new, simple, and affordable approach. The aim is to replace costly and bulky setups with a small-sized, adaptable active load, an electrical machine emulation. To prove the suitability as realistic equivalent load in EMC tests, the emissions and high frequency coupling paths of an existing machine emulation prototype, which is able to provide functional behavior, are investigated. The results provide a promising emulation of the common mode coupling path, but high emissions which require further treatment.