Method to Increase WPTS Robustness to Frequency Splitting and Bifurcation Phenomena
Konferenz: PCIM Europe 2022 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
10.05.2022 - 12.05.2022 in Nürnberg, Germany
doi:10.30420/565822108
Tagungsband: PCIM Europe 2022
Seiten: 9Sprache: EnglischTyp: PDF
Autoren:
Lemaitre, Damien (EDF R&D, France & Univ. Grenoble Alpes, CNRS, Grenoble INP, France)
Sarrazin, Benoît; Derbey, Alexis; Lembeye, Yves (Univ. Grenoble Alpes, CNRS, Grenoble INP, France)
Wanderoild, Yohan; Brincourt, Thierry (EDF R&D, France)
Inhalt:
Wireless Power Transfer System (WPTS) for electrical vehicle (EV) charging presents many advantages, but the classical values of coupling and load resistance can lead to frequency splitting phenomenon (FSP) and bifurcation phenomenon (BP). The latter affect the system performances due to a potential lower power factor, loss of the zero-voltage switching (ZVS), high sensitivity to over coupling. The present paper provides a method for selecting capacitor values to avoid/reduce these phenomena, specifically allowing to preserve ZVS until an over coupling 67 % higher than classical case.