Power-supply system

A technology of power supply system and power system, applied in the direction of emergency power supply arrangements, electrical components, circuit devices, etc., can solve the problems of secondary battery exchange and installation difficulties, obstacles to effective use of buildings, short service life, etc., to achieve effective Easy to use and install, good decorative effect

Inactive Publication Date: 2005-05-04
HITACHI LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the second prior art, the replacement and installation of the secondary battery becomes extremely difficult because the battery is placed in the elevator tunnel
Secondary batteries will age after repeated charging and discharging. Some secondary batteries with a short service life need to be replaced every few years.
Since equipment such as active filters and passive filters also requires installation space, it becomes an obstacle to the effective use of buildings

Method used

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Embodiment Construction

[0035] Embodiments of the power supply system of the present invention will be described below with reference to the drawings.

[0036] figure 1 Shows the composition of the power supply system in the first embodiment of the present invention, which consists of power supply 1, building load 2, elevator landing door 3, elevator door frame 4, power supply device 5, elevator door frame door leaf 6, power detector 7, power supply circuit breaker 8. The administrator's room is composed of a monitor 91 and a remote monitor 92. Furthermore, the power supply device 5 is composed of a charging and discharging device 51 and a secondary battery 52 .

[0037] The power source 1 is a commercial power source, and supplies power to the load 2 of the building. Generally speaking, the electricity cost of a commercial power supply depends on the contract power supply in addition to the electricity consumption. The so-called contract power supply refers to the maximum power consumption capaci...

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PUM

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Abstract

A power supply system comprising a power supply having a secondary cell and a charging/discharging controller for controlling the charging/discharging of the secondary cell, characterized in that the power supply is connected to a power system of a building in series or parallel, and the power supply or a part of it is installed inside an entrance frame of a landing of an elevator. Since the power supply or a part of it is installed inside an entrance frame of a landing of an elevator, effective use of the building is achieved. Further, since the power supply or a part of it is installed inside the entrance frame of the elevator landing, the maintenance work is facilitated. The lead-in cable of the power supply installed inside of the elevator landing is only the power supply line and the signal line of a power sensor, thereby facilitating the installation work.

Description

technical field [0001] The present invention relates to a power supply system aimed at preventing power outages (momentary blackouts), saving energy, reducing the peak value of received power (power leveling), suppressing high-order harmonics, and improving power factor in factories and buildings. Background technique [0002] As the first prior art, there is JP-A-2001-258158. This gazette describes: a power storage system in which, in a building or the like, a plurality of power storage units divided into individual power systems are connected in parallel, and a general-purpose electric power control control device controls the power storage units. The units are operated synchronously to perform the power compensation action of reducing the peak value and staggering the peak value of the power system. [0003] In addition, as the second prior art, there is JP-A-2001-240324. This gazette describes an example in which a secondary battery consisting of a plurality of single ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/34B66B5/02B66B11/00B66B13/30H02J9/00H02J9/06
CPCB66B13/30B66B5/027H02J9/06B66B13/306
Inventor 绫野秀树长濑博稻叶博美名仓宽和吉川敏文大和育男
Owner HITACHI LTD
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