Unlock instant, AI-driven research and patent intelligence for your innovation.

Management device and power storage system

一种管理装置、蓄电块的技术，应用在蓄电系统领域，能够解决起火等问题，达到简单构成的效果

Active Publication Date: 2018-04-17
PANASONIC INTPROP MANAGEMENT CO LTD
View PDF13 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Deterioration occurs with the passage of time, but battery abnormalities (such as micro-short circuits) may occur for a short period of time even if the period of use is short, and in the fastest case, it may cause fire

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Management device and power storage system
  • Management device and power storage system
  • Management device and power storage system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 It is a figure for demonstrating the power storage system 1 which concerns on embodiment of this invention. The power storage system 1 includes a power storage module 20 and a battery management device 10 . The power storage module 20 is connected to the load 2 . For example, in the case of vehicle use, the load 2 is a motor. In this case, an inverter circuit (not shown) is connected between the power storage module 20 and the load 2 . During power running, the DC power discharged from the power storage module 20 is converted into AC power by the inverter circuit and supplied to the motor. During regeneration, the AC power generated by the motor is converted into DC power by the inverter circuit and charged to the power storage module 20 . In addition, it may be configured to allow charging from an external charger through a plug-in.

[0029] In addition, in the case of the static peak cancellation / standby use power storage module 20, the load 2 is a syste...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A management device for managing a power storage module (20) in which n (where n is an integer of 2 or more) power storage blocks, each having m (where m is an integer of 1 or more) power storage cells connected in parallel, are connected in series, wherein a voltage detection unit (11) detects the voltage of each of the n power storage blocks, a storage unit (14) stores each of the detected powerstorage block voltages in a time series, a voltage drop rate calculation unit (13a) calculates the voltage drop rate of each power storage block on the basis of the voltage time series data for eachpower storage block, and when the difference between the voltage drop rate of one of the n power storage blocks and the average or median value of the voltage drop rates of the remaining power storageblocks is greater than or equal to a first prescribed value, an abnormality determination unit (13b) determines that the one power storage block is a power storage block including an abnormal power storage cell.

Description

technical field [0001] The present invention relates to a management device for managing an electric storage module, and an electric storage system including the electric storage module and the management device. Background technique [0002] It is known that a battery in which an abnormality has occurred has a larger voltage drop than a normal battery or a battery that ages over time (for example, capacity deterioration, internal resistance deterioration). Deterioration occurs with the passage of time, but battery abnormalities (for example, micro-short circuits) may occur in a short period of time even if the usage period is short, and in the fastest case, it may cause fire. Therefore, it is important to quickly detect signs of battery abnormalities and detect battery abnormalities. [0003] As one of methods for detecting an abnormality of a power storage device, a method is proposed in which an equalization process for equalizing voltage variations of a plurality of pow...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36H02J7/00H01M10/42H01M10/48B60L3/00
CPCB60L3/00G01R31/36H01M10/42H01M10/48H02J7/00G01R31/396G01R31/3835Y02E60/10H01M10/482G01R31/3828B60L3/0046G01R19/16542H01M10/425H01M2010/4271
Inventor 大野尚史一色康正
Owner PANASONIC INTPROP MANAGEMENT CO LTD