Title:
SYSTEM WITH A FIRST ELECTRIC MOTOR AND A SECOND ELECTRIC MOTOR FOR DRIVING A LINE SECTION
Document Type and Number:
WIPO Patent Application WO/2014/072409
Kind Code:
A3
Abstract:
The invention relates to a system with a first electric motor (12) and a second electric motor (14) which are mechanically coupled to each other via a common line section (17) of the system. The line section (17) exhibits a natural torsional vibration in response to a natural frequency. A first oscillating torque and a second oscillating torque act on the line section (17) by means of the first electric motor (12) and the second electric motor (14), respectively. According to the invention, the second electric motor (14) is arranged relative to the first electric motor (12) such that the influence of the second oscillating torque on the line section (17) leads to a damping of the excitation of the natural vibration due to the first oscillating torque.
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Inventors:
PIEDER JOERG (CH)
BELLI PAOLO (IT)
BELLI PAOLO (IT)
Application Number:
PCT/EP2013/073276
Publication Date:
July 31, 2014
Filing Date:
November 07, 2013
Export Citation:
Assignee:
ABB TECHNOLOGY AG (CH)
International Classes:
H02P29/00; F04B49/00; H02P5/747
Foreign References:
| EP2099124A2 | 2009-09-09 |
Other References:
SIEMENS AG: "Siemens liefert vier seiner leistungsstärksten Stromrichter-Giessharztransformatoren für das Hamburger Steinkohlekraftwerk Moorburg", 25 June 2010 (2010-06-25), XP007921874, Retrieved from the Internet [retrieved on 20130510]
VOLKER HÜTTEN ET AL: "TORSIONAL INTERHARMONIC INTERACTION STUDY OF 75 MW DIRECT-DRIVEN VSDS MOTOR COMPRESSOR TRAINS FOR LNG DUTY", PROCEEDINGS OF THE THIRTY-SEVENTH TURBO MACHINERY SYPOSIUM 2008,, 1 January 2008 (2008-01-01), pages 57 - 66, XP007920625
SCHRAMM S ET AL: "Damping torsional interharmonic effects of large drives", IEEE 6TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, 2009 : IPEMC '09 ; WUHAN, CHINA, 17 - 20 MAY 2009, IEEE, PISCATAWAY, NJ, USA, 17 May 2009 (2009-05-17), pages 484 - 490, XP031535158, ISBN: 978-1-4244-3556-2
VOLKER HÜTTEN ET AL: "TORSIONAL INTERHARMONIC INTERACTION STUDY OF 75 MW DIRECT-DRIVEN VSDS MOTOR COMPRESSOR TRAINS FOR LNG DUTY", PROCEEDINGS OF THE THIRTY-SEVENTH TURBO MACHINERY SYPOSIUM 2008,, 1 January 2008 (2008-01-01), pages 57 - 66, XP007920625
SCHRAMM S ET AL: "Damping torsional interharmonic effects of large drives", IEEE 6TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, 2009 : IPEMC '09 ; WUHAN, CHINA, 17 - 20 MAY 2009, IEEE, PISCATAWAY, NJ, USA, 17 May 2009 (2009-05-17), pages 484 - 490, XP031535158, ISBN: 978-1-4244-3556-2
Attorney, Agent or Firm:
ABB PATENT ATTORNEYS (Intellectual Property CH-IPBrown Boveri Strasse 6, Baden, CH)
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