Consideration of Oscillation Dilemma from Dual 3.3 kV and 6.5 kV High Voltage Common Package
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:
Arai, Taiga; Wada, Takashi; Ohara, Masashi; Sasaki, Koji; Kawase, Daisuke. (Hitachi Power Semiconductor Devices Ltd, Japan)
Mima, Akira; Furukawa, Tomoyasu (Hitachi Ltd, Japan)
Abstract:
Considerations of Self Excited Oscillation (SE-Osc) and Plasma Extraction Transit Time Oscillation (PETT-Osc) and influences between the upper and lower arms of an industrial standard 100x140mm dual package are presented. To suppress SE-Osc, the combination of inductances shared between a pair of internal devices, which have an amplitude ratio suggesting an unstable solution derived through simulation, were surveyed. Although the resonant loop inductance ranges to suppress PETT-Osc conflict between 3.3 kV and 6.5 kV modules, countermeasures to suppress SE-Osc and PETT-Osc together are indicated by an optimum relation of the internal inductances for each module.