High Pass Design in Active Filter Damping
Conference: PCIM Europe 2022 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2022 - 05/12/2022 at Nürnberg, Germany
doi:10.30420/565822177
Proceedings: PCIM Europe 2022
Pages: 9Language: englishTyp: PDF
Authors:
Ulmer, Sabrina; Schullerus, Gernot; Soenmez, Ertugrul (Reutlingen University, Germany)
Abstract:
The current paper proposes a design method for an active damping approach for LC output filters in a power stage for motor control with continuous output voltage. The power stage uses GaN-HEMTs and operates at switching frequencies in a range between 500 kHz and 1MHz. The active damping of the output filter is achieved here by a feedback of the filter inductor current using a high-pass structure. The paper discusses the impact of this feedback on the system behavior and proposes a design method.