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Method for charging batteries for an aircraft and system for storing electrical energy

An electric energy storage system, battery charging technology, applied in the direction of secondary battery charging/discharging, battery circuit device, auxiliary power equipment, etc. , inability to charge the battery to the highest level, etc., to save time and reduce costs

Pending Publication Date: 2020-04-10
SAFRAN ELECTRICAL & POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the charging of the batteries is not individually and independently controlled
Therefore, when charging the battery pack is interrupted after the individual cells of the rechargeable battery are fully charged, it may not be possible to charge the battery to its full capacity.
[0008] Conversely, charging can continue, resulting in overcharging of one or more of the highest battery cells
This leads to eventual degradation of the cell and safety issues

Method used

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  • Method for charging batteries for an aircraft and system for storing electrical energy
  • Method for charging batteries for an aircraft and system for storing electrical energy
  • Method for charging batteries for an aircraft and system for storing electrical energy

Examples

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Embodiment Construction

[0039] The electrical energy storage system of the present invention makes it possible to store electrical energy to power loads in an aircraft.

[0040] As shown, the system 1 of the invention comprises a battery pack 3 connected in parallel, wherein each battery 5 is associated with a specific switch 7 via which a charger 9 and for ensuring the connection between the battery 5 and the charger 9 A communication element of communication is connected to each battery 5 comprising one or more cells charged by a charging method according to the invention, which is described in detail in the following description.

[0041] This battery pack 3 may advantageously comprise batteries 5 with identical or different cells, ie cells of the same or different nature, and / or same or different numbers of cells.

[0042] The charger 9 may be a standard CHAdeMO protocol charger. The protocol includes analog (system) and CAN communication as well as a dedicated sequence of operations.

[0043] ...

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PUM

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Abstract

The invention relates to a method (101) for charging batteries for an aircraft comprising a plurality of steps and also to a system for storing electrical energy comprising a set of batteries chargedby the charging method (101) of the invention.

Description

technical field [0001] The invention relates to a battery charging method for an aircraft, and an electrical energy storage system for an aircraft including a battery pack. Background technique [0002] Batteries are generally formed from one or more cells capable of storing and delivering electrical energy. [0003] It is known practice to charge multiple batteries in series. However, this type of configuration is usually a battery for which, between the highest and lowest capacity cells belonging to a battery, the open circuit voltage of that battery requires equalization among all cells, including those in other cells. on the single battery. [0004] Furthermore, depending on the number of series-connected cells to be charged and the required open circuit voltage, it is sometimes necessary to have a dedicated charger for each desired open circuit voltage level. This significantly increases development costs. [0005] Another configuration has been proposed in which th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44B64D41/00
CPCB64D41/00H01M10/441H02J7/0013H02J7/0019H02J2310/44Y02E60/10Y02T50/40H02J7/00036H01M2220/20H02J7/0014
Inventor 安东尼·克里姆纪尧姆·切尔诺贝利
Owner SAFRAN ELECTRICAL & POWER
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