Method and Device for Operating Power System, and Rechargeable-Battery Management Device

a technology of management device and power system, which is applied in the direction of power network operation system integration, transportation and packaging, dc source parallel operation, etc., can solve the problems of inconvenient operation of power system, inability to sell electric power stored in storage batteries to the power system, and difficulty in adjusting between demand and supply of electric power, so as to reduce the cost of operation and labor costs concerning electric power generation, the effect of reducing co2 and reducing labor costs and investment in plant and equipmen

Active Publication Date: 2016-01-21
HITACHI LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invent relates to an improved system that uses stored energy efficiently while also minimizing operating expenses or managing green house gas emissions during peak hours. This results in lower operational cost and less effort on site workers when generating electrical power. Additionally, this technology allows users to use excessive amounts of generated power without requiring individual monitoring and controller devices at all times. Overall, these technical improvements improve efficiency and reduce costs associated with storing large quantities of renewables used for producing clean energy.

Problems solved by technology

This technical problem addressed in this patents relates to improving efficient management of power systems through reserve battery usage. Specifically, the objective sought is finding ways to allocate excessive amounts of renewables into smaller grinds called micro grid instead of larger ones like fossil fuel combustion type generator stations. Additionally, reducing peak loads caused by high levels of solar radiation also helps prevent overloading existing power networks without increasing their own costs.

Method used

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  • Method and Device for Operating Power System, and Rechargeable-Battery Management Device
  • Method and Device for Operating Power System, and Rechargeable-Battery Management Device
  • Method and Device for Operating Power System, and Rechargeable-Battery Management Device

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embodiment 1

[0062]FIG. 1 schematically illustrates a power system and a control system thereof to which the present invention is applied. Here, the power system includes electric generators such as thermal electric generator G1, hydraulic electric generator G2 and atomic electric generator G3, transmission and transformer apparatuses such as bus lines B, transformers Tr and transmission lines Li and loads Ld. The power system further includes storage battery devices 6 being increased in recent years in consumers or on the side of system. In the present invention, attention is paid to the storage battery devices 6.

[0063]In the operation of such a power system, a power company performs the demand and supply operation of electric power for maintaining the balance between demand and supply of electric power. The demand and supply control is to control the power generation amount to make equal to the load varied every moment and includes economic load distribution control for controlling long-period po

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Abstract

The purpose of the present invention is to provide a method and device for operating a power system, and a rechargeable-battery management device, that extract maximum performance from rechargeable batteries and use said batteries evenly while taking into consideration cost and the operation of the batteries. In order to solve said problem, in this method for operating a power system provided with a plurality of rechargeable-battery devices and a plurality of electric generators, the amount of power that a rechargeable battery available during a scheduled time period on a scheduled date will be able to supply is determined, an economic-dispatch calculation including the determined amount of power that the aforementioned rechargeable battery will be able to supply is performed for the power system, and said rechargeable battery is used to supply power during the scheduled time period on the scheduled date.

Description

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Claims

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Application Information

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Owner HITACHI LTD
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