Converter with distributed brake resistances

US8610384B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Mike Dommaschk · Guteborn, DE
• Ingo Euler · Erlangen, DE
• Herbert Gambach · Uttenreuth, DE
• Joerg Lang · Stadtsteinach, DE
• Quoc-Buu Tu · Roßtal, DE
• Carsten Wittstock · Koblenzer Straße, DE
• Klaus Würflinger · Koblenzer Straße, DE
• Andreas Zenkner · Herzogenaurach, DE

Key dates

• Filing date: Aug 17, 2009
• Grant date: Dec 17, 2013
• Expiry date: Oct 5, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02M1/325
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A device converts electrical energy into heat in the field of drive voltage technology and/or high voltage technology. The device contains a brake resistance and at least one controllable brake power semiconductor for controlling the conversion, enabling a rapid and economical transformation of effective power into heat as required. To this end, the brake resistance contains a plurality of individual brake resistances that are each part of a bipolar submodule. The submodules are connected in series, form a submodule series connection, and at least partially contain an energy accumulator respectively connected in parallel to an associated individual brake resistance and a controllable brake power semiconductor, which allows the current flow over the respectively associated individual brake resistance in a brake position, and interrupts the current flow over the brake resistance in a normal operating position.