Battery system

A battery system and battery technology, applied in secondary batteries, battery pack components, battery circuit devices, etc., can solve problems such as increasing the number of components

Inactive Publication Date: 2013-10-23
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to this structure, the number of parts will increase in a large-scale battery system

Method used

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no. 1 approach

[0033] Embodiments of the present invention will be described below using the drawings. first use figure 1 The power generation system according to the present invention will be described. The power generation system 101 has: a power generation device 103 ; an electric power system 102 ; an electric line 105 connecting the electric power system 102 and the power generation device 103 ; and a battery system 201 connected to the electric line 105 via an inverter 104 . The power generation device 103 is, for example, wind power generation, hydropower generation, solar power generation or other power generation equipment.

[0034] The battery system 201 realizes the stable supply of electric power by charging the excess generated power when the power generating device 103 generates excess power compared with the power required in the power system 102, and conversely when the power generating device 103 and the power system 102 Discharge is performed when the requested power is l...

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Abstract

The present invention aims to provide a battery system which caused no communication delay when the component number of terminal resistors is reduced. The battery system includes battery modules each having a plurality of batteries and a battery module control unit for controlling the plurality of batteries; and battery pack control units for controlling a plurality of the battery module control units. The battery system is characterized in that the plurality of the battery module control units are connected in serial by wires between modules; and each battery module control unit includes a first input / output terminal for inputting or outputting information to or from a battery module control unit of one adjacent battery module and a second input / output terminal for inputting or outputting information to or from a battery module control unit of another adjacent battery module, and an input impedance of the first input / output terminal is smaller than an input impedance of the second input / output terminal.

Description

technical field [0001] The present invention relates to a battery system equipped with a control regulator. Background technique [0002] The battery system that has been developed in recent years can be used in various applications, and the scale of the battery system varies depending on the purpose of use. In particular, the battery system used for the suppression of load fluctuations such as server centers, power outage countermeasures, and the stabilization of large-scale systems such as railway regenerative power absorption systems, renewable energy systems, and nuclear power plants is a large-scale battery system . [0003] In the case of having a plurality of battery modules, in order to perform communication / control with the battery module group, it is conceivable to perform one-to-one comparison of the upper and lower potentials by daisy-chaining the battery module control devices installed in each battery module. communication, by bus connection in the parallel d...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H02J7/00H01M50/204H01M50/512H02J7/02
CPCY02E60/12H01M10/4257H01M2/1077H01M10/4207H01M2010/4271G01R31/396G01R31/371Y02E60/10H01M50/204H01M50/512
Inventor高桥俊树坂部启
OwnerHITACHI LTD