Comparison of switching power losses of fixed-frequency PWM, Hysteresis Control and Δ-Σ PWM

Konferenz: PCIM Europe digital days 2020 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
07.07.2020 - 08.07.2020 in Deutschland

Tagungsband: PCIM Europe digital days 2020

Seiten: 8Sprache: EnglischTyp: PDF

Autoren:
Ramm, Hannes; Homann, Michael; Schulze, Torben A.; Turki, Faical; Rabba, Heiko (IAV GmbH, Germany)

Inhalt:
The electric range of an electric vehicle depends amongst others on the efficiency of electric components. This paper focuses on the efficiency of the inverter in one-phase and three-phase operation. A comparison of three different PWM patterns is presented concerning their efforts to minimize the switching losses of the inverter. For one-phase systems, we show that an appropiate switching strategy will decrease the switching losses by up to 33%. For three-phase systems, we find a lower efficiency gain, but argue how our methods might be combined with predictive control strategies.