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System and method for transferring power between master control unit and local control unit coupled to energy storage string

An energy storage system and main control unit technology, applied in the field of energy storage strings, can solve problems such as poor transmission reliability, inability to transmit power, and low signal-to-noise ratio

Pending Publication Date: 2021-10-15
VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK NV VITO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the problems with this technique is that it is difficult to obtain a measurable voltage change at the terminals, resulting in low signal-to-noise ratio and poor transmission reliability, especially when the power line is noisy
Also, with this technology, only data can be transferred, not power

Method used

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  • System and method for transferring power between master control unit and local control unit coupled to energy storage string
  • System and method for transferring power between master control unit and local control unit coupled to energy storage string
  • System and method for transferring power between master control unit and local control unit coupled to energy storage string

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Embodiment Construction

[0068] The present invention will be described in terms of specific examples, which are illustrative of the invention and should not be construed as limiting. Those skilled in the art will appreciate that the present invention is not limited by what has been specifically shown and / or described above and that alternative or modified embodiments can be developed based on the general teachings of the present disclosure. The drawings described are only schematic and non-limiting.

[0069] Use of the verb "to comprise" and the corresponding verb conjugations do not exclude the presence of elements other than those stated. Use of the articles "a", "an" or "the" preceding an element does not exclude the presence of a plurality of such elements.

[0070]Furthermore, the terms first, second, etc. in the description and in the claims are used to distinguish between similar elements and not necessarily to describe an order temporally, spatially, in ranking or in any other way. It is to...

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PUM

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Abstract

An energy storage system (100) comprises an energy storage string formed by rechargeable cells (2a...f) connected in series and an energy management device comprising a master control unit (4) and at least a first local control unit (3a...f) associated to a first rechargeable cell. A storage string connecting circuit (SCC) couples a positive string terminal with a negative string terminal and a cell connecting circuit (CCC) couples a positive and a negative cell terminal of the first rechargeable cell. The SCC comprises a first capacitor device (C1) forming with the energy storage string a first closed-loop LC-circuit, and the CCC comprises a second capacitor device (C2) forming with the first rechargeable cell a second closed-loop LC-circuit. A master AC signal generator and a local signal generator are configured for generating a first and a second AC pulses in the SCC and the CCC, respectively.

Description

technical field [0001] The invention generally relates to the field of energy storage systems comprising rechargeable battery cells for storing electrical energy, and wherein an energy management device controls the rechargeable battery cells. More specifically, the present invention relates to energy storage strings formed by connecting a plurality of rechargeable battery cells in series via electrical connectors. Background technique [0002] Rechargeable battery cells connected in series to form energy storage strings are used in various applications requiring energy supply. Examples of rechargeable batteries are rechargeable battery cells or supercapacitors. Supercapacitors are also known as ultracapacitors or electric double layer capacitors (EDLC). By connecting several rechargeable cells in series, an energy storage string is obtained that can operate at a higher voltage than a single cell. [0003] Battery strings formed of battery cells placed in series are used,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0016H02J2207/10Y02T10/70H02J7/00032H02J7/0047H02J7/345
Inventor B·克诺伦
Owner VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK NV VITO
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