Title:
BALANCING UNIT, ENERGY STORE AND BALANCING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/147751
Kind Code:
A3
Abstract:
The invention relates to a balancing unit for a first and a second electric energy cell, comprising a dc-dc converter with an inductance, the dc-dc converter being designed to receive energy in a first switched state from the first energy cell to the inductance and to emit the received energy in a second switched state from the inductance to the second energy cell. The balancing unit also comprises a measuring unit for determining the voltages of the energy cells and an actuating unit for actuating the dc-dc converter in the two switched states in conjunction with the voltages that have been determined, the measuring device being designed to determine the voltages of the energy cells on the basis of a magnetic field of the inductance. An energy store comprises a plurality of energy cells that are interconnected in series and the aforementioned balancing unit. The invention also discloses a balancing method for balancing electric cells, which includes a computer program product.
Inventors:
MEINERT MICHAEL (DE)
PEPPEL TORSTEN (DE)
RECHENBERG KARSTEN (DE)
HARTMANN MATTHIAS (DE)
MUELLER FRANK (DE)
RASTOGI ARMIN (DE)
PEPPEL TORSTEN (DE)
RECHENBERG KARSTEN (DE)
HARTMANN MATTHIAS (DE)
MUELLER FRANK (DE)
RASTOGI ARMIN (DE)
Application Number:
PCT/EP2011/058266
Publication Date:
March 01, 2012
Filing Date:
May 20, 2011
Export Citation:
Assignee:
SIEMENS AG (DE)
MEINERT MICHAEL (DE)
PEPPEL TORSTEN (DE)
RECHENBERG KARSTEN (DE)
HARTMANN MATTHIAS (DE)
MUELLER FRANK (DE)
RASTOGI ARMIN (DE)
MEINERT MICHAEL (DE)
PEPPEL TORSTEN (DE)
RECHENBERG KARSTEN (DE)
HARTMANN MATTHIAS (DE)
MUELLER FRANK (DE)
RASTOGI ARMIN (DE)
International Classes:
H02J15/00; H02J7/00
Domestic Patent References:
| WO2009051415A2 | 2009-04-23 | |||
| WO2009051414A2 | 2009-04-23 |
Foreign References:
| US20050140336A1 | 2005-06-30 | |||
| US20090278489A1 | 2009-11-12 |
Other References:
KUTKUT N H ET AL: "Dynamic equalization techniques for series battery stacks", TELECOMMUNICATIONS ENERGY CONFERENCE, 1996. INTELEC '96., 18TH INTERNA TIONAL BOSTON, MA, USA 6-10 OCT. 1996, NEW YORK, NY, USA,IEEE, US, 6 October 1996 (1996-10-06), pages 514 - 521, XP010204362, ISBN: 978-0-7803-3507-3, DOI: 10.1109/INTLEC.1996.573384
Attorney, Agent or Firm:
SIEMENS AKTIENGESELLSCHAFT (München, DE)
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