A new approach to power supplies for robots

Author

Esser, Albert ; Skudelny, Hans-Christoph

Author_Institution

Inst. for Power Electron. & Electr. Drives, RWTH Aachen Univ. of Technol., Germany

Volume

27

Issue

5

fYear

1991

Firstpage

872

Lastpage

875

Abstract

A cableless power supply system for multiaxis robots is proposed. As key components, it contains rotatable transformers placed in the joints of the robot. It consists of two halves of a ferrite pot core containing the primary and secondary windings, respectively. The energy is transferred to the movable parts of the robot through this transformer at a frequency of 25 kHz. This frequency allows a compact design of the transformer. A schematic representation of the new system is offered. Investigations of the steady-state and the transient behavior were carried out. Experimental results were obtained from an experimental setup with a 20 kVA, 650 V IGBT converter

Keywords

power supplies to apparatus; robots; transformers; 25 kHz; cableless power supply system; ferrite pot core; multiaxis robots; primary windings; rotatable transformers; secondary windings; steady-state behaviour; transient behavior; AC generators; Cables; Energy exchange; Frequency; Industry Applications Society; Insulated gate bipolar transistors; Power supplies; Robots; Steady-state; Switches;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.90341

Filename

90341