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Direct-current power supply cabin

A technology of DC power supply and DC voltage, applied in the field of DC power supply cabin, can solve problems such as long-term power failure, unfavorable projects, user interference, etc., to reduce the scale of transformation and promote local consumption.

Inactive Publication Date: 2021-06-25
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional technology for direct current transformation of existing buildings requires the transformation of the original power supply system, mainly in the user's power distribution room, which often requires a long period of power outage, causing great interference to users and is not conducive to the implementation of the project

Method used

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  • Direct-current power supply cabin
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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] refer to figure 1 , figure 1 It is a simple structural diagram of a DC power supply cabin provided by an embodiment of the present invention, including: AC / DC converter cabinet 02A, DC / DC converter cabinet 04A, optical storage integrated converter cabinet 01A, and the first DC feeder cabinet 03A, second DC feeder cabinet 05A, DC backup power supply cabinet 08A, public measurement and control panel 09A, computer monitoring panel 06A and energy management pan...

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Abstract

The invention discloses a direct-current power supply cabin which is arranged outside a building to be transformed and comprises an AC / DC converter cabinet, a DC / DC converter cabinet, an optical storage integrated converter cabinet, a first DC feeder cabinet and a second DC feeder cabinet. The AC / DC converter cabinet is connected with an AC distribution line of a building to be transformed. The AC / DC converter cabinet, the optical storage integrated converter cabinet and the first DC feeder cabinet are connected in series through a first DC bus. The optical storage integrated converter cabinet is used for realizing photovoltaic absorption. The first DC feeder cabinet is connected with a first distribution box of a building to be transformed so as to provide a first DC voltage for the building to be transformed. The first DC feeder cabinet is connected with the DC / DC converter cabinet, and the DC / DC converter cabinet is connected with the second DC feeder cabinet through a second DC bus. The second DC feeder cabinet is connected with a second distribution box of the building to be transformed so as to provide a second DC voltage for the building to be transformed. By adopting the embodiment of the invention, the transformation scale of the original power supply system of the building can be reduced while the local consumption of photovoltaic power generation is promoted.

Description

technical field [0001] The invention relates to the technical field of direct current in buildings, in particular to a direct current power supply cabin. Background technique [0002] The load of buildings is the main electricity load of urban distribution network. Deploying distributed energy on the user side, making full use of building schedulable load resources, thereby reducing building peak loads, is of great significance to improving the power supply capacity and asset utilization efficiency of the stock distribution network, and delaying the expansion time of the distribution network. With the continuous reduction of the cost of distributed photovoltaic and battery energy storage systems, the use of idle building space to build a large number of distributed photovoltaic systems has broad market prospects, and it is also the main technical means to reduce building peak loads. [0003] However, a high proportion of distributed photovoltaic power generation connected t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/10H02J7/34H02J7/35
CPCH02J1/10H02J7/34H02J7/35Y02B10/10Y02E10/56
Inventor 李志铿李华健孙浩张磊黄泽杰陈吕鹏
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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