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Power storage system and method for controlling power storage module

A technology of a power storage module and a control method, which is applied to systems for storing electrical energy, battery circuit devices, and battery charging management, etc., can solve problems such as incommensurate changes in load power, and achieve the effect of easy and unified control.

Inactive Publication Date: 2013-11-27
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the load power required by the load may fluctuate, and the change in load power may not be commensurate with a system that supplies stable power.

Method used

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  • Power storage system and method for controlling power storage module
  • Power storage system and method for controlling power storage module
  • Power storage system and method for controlling power storage module

Examples

Experimental program
Comparison scheme
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no. 1 approach ）

[0052] [Explanation of the electricity storage system]

[0053] figure 2 It is a figure which schematically shows the whole system structure concerning the structure example which is 1st Embodiment of the electric power storage system which concerns on this invention.

[0054] Such as figure 2 As shown, as an example, the power storage system of the first embodiment includes a control device 202 installed in a building 201 of the power storage system, a power conversion device 203, an electric storage unit 206 as an electric storage body capable of storing predetermined electric power, The power storage module 207 also serves as a power storage body. In addition, illustrations and descriptions of equipment generally required in electric power-related equipment, such as extra-high voltage circuit breakers, are omitted.

[0055] In the power storage system according to the present embodiment, the storage cells 206 are configured, for example, by fastening a large number of ...

no. 2 approach ）

[0103] Next, as a second embodiment of the power storage system of the present invention, a case where the power storage body in the power storage system is a plurality of types of power storage modules including different types of power storage elements will be described. In addition, a control method for correcting variations in terminal voltage and remaining capacity of a battery pack serving as an energy storage element between energy storage modules including different types of energy storage elements will be described.

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Abstract

A power accumulation system according to the present invention includes a plurality of storage bodies (206, 207) each being capable of storing predetermined electric power; a power conversion device (203) inputting and outputting electric power with respect to the storage bodies; and a control device (202) controlling motion of the power conversion device. At least part of the storage bodies is a storage module that includes storage elements capable of storing electric power and an input / output characteristic adjustment part for controlling input / output characteristics of electric power of the storage elements. In the power accumulation system of the present invention, it is possible to easily control the entire power accumulation system even after replacement of the storage bodies.

Description

technical field [0001] The present invention relates to an electric power storage system including a plurality of electric storage bodies for storing electric power, and a method of controlling an electric storage module as an electric storage body used in the electric power storage system. Background technique [0002] The power storage system has a function of storing a large amount of electric power, cooperates with a power supply system or a power load system, stores power when there is a surplus in power supply, and supplies the stored power when a request for power supply is received. [0003] The power storage system can be used in various ways, and the scale of the power storage system varies depending on the purpose of use. Examples include power storage systems for suppressing load fluctuations in residential equipment and server centers, power storage systems used as power outage countermeasures, regenerative power absorption systems for electric railways, and ren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J15/00H02J7/00
CPCH01M10/00H02J7/0022H02J3/32H01M10/4207H01M10/425H01M10/441Y02E60/10H02J7/0013H02J7/007182
Inventor 内田丈
Owner HITACHI LTD