WO2015096749A1 - Dispositif d'alimentation électrique à courant continu haute tension distribué - Google Patents

Dispositif d'alimentation électrique à courant continu haute tension distribué Download PDF

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Publication number
WO2015096749A1
WO2015096749A1 PCT/CN2014/094869 CN2014094869W WO2015096749A1 WO 2015096749 A1 WO2015096749 A1 WO 2015096749A1 CN 2014094869 W CN2014094869 W CN 2014094869W WO 2015096749 A1 WO2015096749 A1 WO 2015096749A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
battery
load
grid
rectifier
Prior art date
Application number
PCT/CN2014/094869
Other languages
English (en)
Chinese (zh)
Inventor
李治
曾旭东
王志强
Original Assignee
联方云天科技(北京)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 联方云天科技(北京)有限公司 filed Critical 联方云天科技(北京)有限公司
Publication of WO2015096749A1 publication Critical patent/WO2015096749A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

Definitions

  • the invention belongs to the technical field of power supply and power management of a computer room, and particularly relates to a distributed high voltage direct current power supply device.
  • the traditional IT equipment room is powered by an AC UPS system, which converts AC power to DC power and then converts it to AC power for IT.
  • the device is powered and requires 2 conversions. If the number of conversions can be reduced, the power loss can be reduced and the power supply efficiency can be improved. Therefore, the use of only AC power to convert to DC power and then directly use the converted high voltage DC for IT
  • the way the equipment is powered is called a high-voltage DC power supply system or a high-voltage DC UPS system. Due to the centralized power supply mode, if UPS A failure occurs, which is likely to cause a full power supply accident, and the entire data center room is powered off. And traditional exchange UPS The power supply system needs to occupy a large space, which not only reduces the space utilization efficiency of the equipment room, but also is not conducive to the expansion and relocation of the equipment room equipment.
  • the technical problem to be solved by the present invention is to provide a distributed high voltage DC power supply device in view of the deficiencies of the prior art.
  • a distributed high-voltage DC power supply device comprising an AC power supply, characterized by further comprising a rectifier, a battery, a battery management module, a monitoring module, a DC power grid interface and a load interface, wherein the rectifier is connected to the AC power source, and the setting device is The rectifier is connected to the monitoring module; the monitoring module is further connected to the DC grid interface and the load interface, and is further connected to the battery through the battery management module; the battery management module is responsible for controlling the battery charging and discharging, The load interface is used to connect a load, the DC grid interface is used to connect to a DC grid, the rectifier is used to convert AC power into DC power; the monitoring module is configured to monitor and manage the rectifier and the battery management module, and according to the advance The set power mode is automatically adjusted.
  • the monitoring module is also configured to monitor battery status and load power usage and DC grid power supply conditions.
  • the monitoring module can set the DC output from the rectifier to supply power only to one of the battery, the load, and the DC grid, or simultaneously supply power to the battery and the load, or simultaneously supply power to the battery and the DC grid, or simultaneously supply power to the load and the DC grid.
  • the DC output from the rectifier to supply power to the battery and the load, and input DC power from the DC grid to supply power to the battery or to supply power to the load or both; It can also be set to stop the rectifier output DC power, input DC power from the DC grid, supply power to the load or supply power to the battery or supply power to both the battery and the load; it can also be set to supply power only to the load; or can be set by the battery and
  • the rectifier output DC power is supplied to the load or the DC grid or to the load and the DC grid at the same time; the DC power input from the battery and the DC grid can also be set to supply power to the load;
  • the monitoring module can be in the foregoing various power supply modes according to preset conditions. Automatically change between.
  • the monitoring module has dual functions of monitoring and control, and can not only monitor the state of equipment components such as a rectifier, a battery, a battery management module, but also monitor data such as changes in battery power, load power consumption, and DC grid power, and can Preset conditions control and adjust the transformation of the power mode.
  • An electronic switch is disposed between the AC power source and the rectifier, and the electronic switch can be used to cut off the AC power when the power supply of the device is abnormal, or can be used to cut off the AC power to detect or repair the device.
  • the monitoring module is further provided with a management communication interface for communicating with a higher level management control system.
  • the distributed high-voltage DC power supply device of the present invention can separately supply power to a group of devices, and each of the equipment rooms can be equipped with a plurality of distributed high-voltage DC power supply devices according to the number of devices, and all distributed high-voltage DC power supply devices can be connected in parallel through the DC power grid. Form a micro grid.
  • Each distributed high voltage DC power supply can operate independently or with each other.
  • the invention has the advantages of small volume, flexible power supply means, high efficiency and energy saving, and can be expanded according to the number of loads, thereby greatly reducing the investment cost in the initial stage of power supply deployment, and is not limited by the area of the equipment room, and the use efficiency is high.
  • Figure 1 shows the structure of a distributed high-voltage DC power supply unit.
  • FIG. 1 shows a preferred embodiment of the present invention, a distributed high voltage DC power supply device, including an AC power source 1, a rectifier 2, and a battery 3. , battery management module 4, monitoring module 5, DC grid interface 6 and load interface 7, management communication interface 8, rectifier 2 through electronic switch 9 and AC power supply 1 Connected.
  • the solid arrow in the figure is the current direction, and the dotted arrow is the direction of the monitoring signal.
  • the rectifier 2 converts the alternating current into a direct current output.
  • the monitoring module 5 and the DC grid interface 6 and the load interface 7 Connected to and connected to the battery 3 through the battery management module 4; the battery management module 4 is responsible for controlling the charge and discharge of the battery 3, the load interface 7 is for connecting a load, the DC grid interface 6 Used to connect to a DC grid.
  • the monitoring module 5 has dual functions of monitoring and control, and the monitoring module 5 is provided with a pair of rectifiers 2 and a battery management module. Monitoring and management, as well as monitoring the status of the battery 3 and the power usage of the load connected to the load interface 7 and the supply of the DC grid connected to the DC grid interface 6. Simultaneous monitoring module 5 According to the monitored battery 3 power change, load power change, DC grid power change and other data, and according to preset conditions to control and adjust the power mode change.
  • the power supply mode set by the monitoring module 5 may be outputted by the rectifier 2 to the battery 3 only, the load interface 7 One of the connected load, DC grid interface 6 connected to the DC grid is powered, or both of them are powered at the same time. It is also possible to set the direct current output from the rectifier 2 to the battery 3 And the load is powered, and the DC power is input from the DC grid to supply power to the battery 3 or to the load or to both; or the rectifier can be set to stop 2 DC power is output while DC power is input from the DC grid, power is supplied to the load or power is supplied to the battery 3 or both to the battery 3 and the load; it can also be set to supply power only to the load from the battery 3, or by the battery 3 And the output of the rectifier 2 is supplied to the load either simultaneously to the DC grid or both, or the DC input from the battery 3 and the DC grid is supplied to the load. And the monitoring module 5 It can be automatically changed between the aforementioned various power supply modes according to preset conditions.
  • the monitoring module 5 is also provided with a management communication interface 8 for communicating with a higher level management control system.
  • the DC grid can connect several distributed high-voltage DC power supply devices in parallel to form a micro grid.
  • Each distributed high-voltage DC power supply device can work independently or can transfer power between each other.
  • the electronic switch 9 It can be used to cut off the AC power when the power supply of the device is abnormal, or it can be used to cut off the AC power to detect or repair the device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne un dispositif d'alimentation électrique à courant continu haute tension distribué, qui comprend une source d'alimentation (1) à courant alternatif, un redresseur (2), une batterie (3), un module (4) de gestion de batterie, un module (5) de surveillance, un orifice (6) de réseau électrique à courant continu et un orifice (7) de charge. Le redresseur est relié à la source d'alimentation à courant alternatif et au module de surveillance. Le module de surveillance est relié à l'orifice de réseau électrique à courant continu et à l'orifice de charge et il est également relié à la batterie par le biais du module de gestion de batterie. Le module de gestion de batterie est chargé de commander la charge et la décharge de la batterie. L'orifice de charge est utilisé pour une connexion à une charge. L'orifice de réseau électrique à courant continu est utilisé pour une connexion à un réseau électrique à courant continu. Le redresseur est utilisé pour convertir le courant alternatif en courant continu. Le module de surveillance est utilisé pour surveiller et gérer le redresseur et le module de gestion de batterie et peut être automatiquement réglé en fonction d'un mode d'alimentation électrique prédéfini. Le dispositif d'alimentation électrique est flexible au point de vue de l'alimentation électrique, il est efficace et économe en énergie, présente des coûts de déploiement considérablement réduits pour l'alimentation électrique et n'est pas limité par l'espace d'une machine dans une pièce.
PCT/CN2014/094869 2013-12-25 2014-12-25 Dispositif d'alimentation électrique à courant continu haute tension distribué WO2015096749A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310724486.9 2013-12-25
CN201310724486.9A CN103701111A (zh) 2013-12-25 2013-12-25 一种分布式高压直流供电装置

Publications (1)

Publication Number Publication Date
WO2015096749A1 true WO2015096749A1 (fr) 2015-07-02

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Country Status (2)

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CN (1) CN103701111A (fr)
WO (1) WO2015096749A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201839059U (zh) * 2010-11-03 2011-05-18 成都市雨田骏科技发展有限公司 负48伏通信电源自动并机装置
CN103051042A (zh) * 2012-07-13 2013-04-17 山大鲁能信息科技有限公司 一种直流不间断电源
CN203722327U (zh) * 2013-12-26 2014-07-16 联方云天科技(北京)有限公司 一种高压直流供电装置用桥接结构
CN203933008U (zh) * 2013-12-25 2014-11-05 联方云天科技(北京)有限公司 一种分布式高压直流供电装置
CN203933133U (zh) * 2013-12-25 2014-11-05 联方云天科技(北京)有限公司 一种网络化的分布式高压直流供电系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101222151A (zh) * 2007-10-23 2008-07-16 成都飞机工业（集团）有限责任公司 相互独立互为冗余的车载配电网
FR2985392B1 (fr) * 2011-12-30 2014-01-31 Thales Sa Systeme d'alimentation electrique a entree multiple heterogene
CN102710005A (zh) * 2012-06-04 2012-10-03 国电南瑞科技股份有限公司 并离网两用风光互补发电系统供电方法
CN103441562B (zh) * 2013-08-28 2016-03-16 北京百度网讯科技有限公司 高压直流供电系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201839059U (zh) * 2010-11-03 2011-05-18 成都市雨田骏科技发展有限公司 负48伏通信电源自动并机装置
CN103051042A (zh) * 2012-07-13 2013-04-17 山大鲁能信息科技有限公司 一种直流不间断电源
CN203933008U (zh) * 2013-12-25 2014-11-05 联方云天科技(北京)有限公司 一种分布式高压直流供电装置
CN203933133U (zh) * 2013-12-25 2014-11-05 联方云天科技(北京)有限公司 一种网络化的分布式高压直流供电系统
CN203722327U (zh) * 2013-12-26 2014-07-16 联方云天科技(北京)有限公司 一种高压直流供电装置用桥接结构

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