Low inductance power converter with compact commutation cell

US11745599B1 · kind B1 · utility

Assignee

• ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

• Uwe Waltrich · Forchheim, DE
• Stanley Buchert · Herzogenaurach, DE

Key dates

• Filing date: Dec 14, 2022
• Grant date: Sep 5, 2023
• Expiry date: Dec 14, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60L2240/525
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A power electronics converter may include a converter commutation cell having a power circuit and a gate driver circuit. The power circuit includes at least one power semiconductor switching element and at least one capacitor. Each power semiconductor switching element is included in a power semiconductor prepackage, each prepackage including one or more power semiconductor switching elements embedded in a solid insulating material, each power semiconductor switching element having at least three terminals including a gate terminal. The gate driver circuit is electrically connected to and configured to provide switching signals to the gate terminal of each of the at least one power semiconductor switching element. A peak rated power output of the power electronics converter is greater than 25 kW and a value of a converter parameter α is less than or equal to 5 pHm3.