CN203707869U - Reserve-type redundancy low-voltage distribution system for nuclear power station - Google Patents

Reserve-type redundancy low-voltage distribution system for nuclear power station Download PDF

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Publication number
CN203707869U
CN203707869U CN201320838433.5U CN201320838433U CN203707869U CN 203707869 U CN203707869 U CN 203707869U CN 201320838433 U CN201320838433 U CN 201320838433U CN 203707869 U CN203707869 U CN 203707869U
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CN
China
Prior art keywords
power supply
direct current
switch
voltage distribution
module
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Expired - Lifetime
Application number
CN201320838433.5U
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Chinese (zh)
Inventor
曹新民
秦裕强
邱韶阳
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State Nuclear Power Automation System Engineering Co Ltd
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State Nuclear Power Automation System Engineering Co Ltd
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Priority to CN201320838433.5U priority Critical patent/CN203707869U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems

Abstract

The utility model belongs to the technical field of low-voltage distribution and relates to a reserve-type redundancy low-voltage distribution system for a nuclear power station. The system is characterized in that a first alternating current, a first breaker switch, a first switch power supply, a power-supply alternative module and a direct current UPS controller are electrically and successively connected to each other; and a second alternating current, a second breaker switch, a second switch power supply, the power-supply alternative module and the direct current UPS controller are electrically and successively connected to each other. The direct current UPS controller is electrically connected to a direct current UPS power supply. Both the first switch power supply and the second switch power supply are AC-to-DC power supply modules. Besides, a monitoring apparatus is employed and is used for monitoring operation status of each module of the system in real time. With arrangements of a redundancy device and a reserve-type battery, reliability, continuity and security of the system are improved; and meanwhile, the whole system is flexible in configuration, small in occupied space, simple in structure and is convenient to maintain and monitor.

Description

A kind of used in nuclear power station backup type redundancy low-voltage distribution system
Technical field
The utility model belongs to low-voltage distribution technical field, is specifically related to a kind of backup type redundancy low-voltage distribution systems higher to reliability requirement such as nuclear power station that are applicable to.
Background technology
In the terminal low-voltage distribution system of industrial low-voltage distribution field, especially nuclear power station, usually need reliable and stable direct current to export for field apparatus.At present, most low-voltage distribution system can promote the reliability and stability of whole distribution system by equipment multi-level by arranging, many redundancies, and some system is also guaranteed also can continue to power after alternating current loses by double power supply converting switch, interchange UPS controller and battery are set.But, often volume and weight is very huge for double power supply converting switch, interchange UPS controller and battery, the equipment of nuclear power station is often had relatively high expectations to anti-seismic performance, and so many heavy weight equipment certainly will more difficultly make whole system still can reliablely and stablely move under earthquake operating mode.In addition, this set also cannot carry out according to the rated power of multiple power consumption equipments the configuration of efficient, flexible, can cause unavoidably the unnecessary configuration of ups power power and battery, in addition the setting of multi-level many redundance units, system space and volume are taken greatly, increase system cost expenditure, expended unnecessary resource.Meanwhile, once the double power supply converting switch in system breaks down, can cause the paralysis of whole distribution system.
Summary of the invention
The technical problems to be solved in the utility model is to provide that a kind of volume is little, cost is low, can in the application such as nuclear power station, effectively ensure again the backup type redundancy low-voltage distribution system of the reliable and stable operation of whole low-voltage distribution system.
For achieving the above object, the technical solution adopted in the utility model is: a kind of used in nuclear power station backup type redundancy low-voltage distribution system, comprise the first alternating current, the second alternating current, the first killer switch, the second killer switch, the first Switching Power Supply, second switch power supply, power supply alternative module, direct current UPS controller and direct current ups power, it is characterized in that: described the first alternating current, the first killer switch, the first Switching Power Supply and power supply alternative module, direct current UPS controller is electrically connected successively, described the second alternating current, the second killer switch, second switch power supply and power supply alternative module, direct current UPS controller is electrically connected successively, described direct current UPS controller and the electrical connection of direct current ups power, described the first Switching Power Supply and second switch power supply are AC/DC power module.
Above-mentioned used in nuclear power station backup type redundancy low-voltage distribution system also comprises supervising device, and described the first killer switch, the second killer switch, the first Switching Power Supply, second switch power supply, power supply alternative module, direct current UPS controller are connected with supervising device respectively with direct current ups power.
The above power supply alternative module is power supply diode (led) module or double power supply converting switch.
Good effect of the present utility model is: the alternating current of two-way redundancy is inputted after two Switching Power Supplies by killer switch respectively, carries out after alternative selection through power supply alternative module, and input direct-current UPS controller is until output direct current supply; Use direct current UPS controller and direct current UPS battery to provide backup power to power supply circuits, once after the alternating current of two-way redundancy all loses, direct current UPS controller can switch the direct current UPS battery of enabling carry fast provides direct current output; System is also provided with supervising device, the operating state of the each module of energy real-time monitoring system.The utility model has improved reliability, continuity and the fail safe of system by the configuration of redundance unit and backup type battery, simultaneously whole system also have flexible configuration, space hold few, simple in structure, maintain easily and the advantage such as monitoring.
Brief description of the drawings
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described in further detail.
Fig. 1 is the system architecture schematic diagram of the utility model embodiment.
Embodiment
As shown in Figure 1, a kind of used in nuclear power station backup type redundancy low-voltage distribution system, comprise 220V alternating current (i.e. the first alternating current) 101, 220V redundancy alternating current (i.e. the second alternating current) 102, the first killer switch 103, the second killer switch 104, the first Switching Power Supply 105, second switch power supply 106, power supply alternative module 107, direct current UPS controller 108 and direct current ups power 109, it is characterized in that: described the first alternating current 101, the first killer switch 103, the first Switching Power Supply 105 and power supply alternative module 107, direct current UPS controller 108 is electrically connected successively, described the second alternating current 102, the second killer switch 104, second switch power supply 106 and power supply alternative module 107, direct current UPS controller 108 is electrically connected successively, described direct current UPS controller 108 and direct current ups power 109 are electrically connected, described the first Switching Power Supply 105 and second switch power supply 106 are AC/DC power module.
Above-mentioned used in nuclear power station backup type redundancy low-voltage distribution system also comprises supervising device, and described the first killer switch 103, the second killer switch 104, the first Switching Power Supply 105, second switch power supply 106, power supply alternative module 107, direct current UPS controller 108 are connected with supervising device 110 respectively with direct current ups power 109.
The above power supply alternative module 107 is power supply diode (led) module or double power supply converting switch.
As shown in Figure 1, system receives the 102 two-way alternating currents inputs of 220V alternating current 101 and 220V redundancy alternating current, and object is that while guaranteeing that wherein a road 220V alternating current breaks down, system still can provide AC power by another road alternating current; The first killer switch 103 and the second killer switch 104 connect respectively two-way alternating current; object is to provide current-limiting protection to circuit; exceed the rated current of killer switch once branch current, this killer switch can disconnect the safety with protective circuit and equipment in time.
As shown in Figure 1, the first Switching Power Supply 105 and second switch power supply 106 turn direct current module for alternating current, the 220V alternating current of input can be carried out to rectification, filtering, voltage stabilizing until the direct current of stable output, the direct current of common output has 48VDC, 24VDC and 12VDC.The effect of power supply alternative module 107 is in the time that one road input power breaks down, this power supply alternative module 107 can switch to rapidly the electric normal power supply output that continues the system that maintains of another road input, and common power supply alternative module 107 has power supply diode (led) module and double power supply converting switch.
As shown in Figure 1, the effect of direct current UPS controller 108 is to export will input electrofiltration ripple in the time that input dc power is normal after, is that direct current UPS battery 109 is charged by its built-in charging circuit simultaneously; When switching to direct current UPS battery 109,108 of this direct current UPS controllers of having no progeny in input dc power export direct current.Meanwhile, relevant indicator light also can be set on direct current UPS controller 108 panels and indicate its operating state, comprise normal operating conditions and battery charging state, contained electric weight in the battery of institute's carry that in addition showing rod's real-time prompting can be set.
As shown in Figure 1, direct current UPS battery 109 is online rechargeable battery, includes lead-acid battery, lithium ion battery, Ni-MH battery etc.In direct current UPS battery 109, be provided with protective circuit, comprise overcharge protection, overcurrent/short-circuit protection and over, to guarantee to overcharge and safety when discharge condition, and prevent the deterioration in characteristics of battery.In the time that needs provide the more discharge period, can be by multiple direct current UPS battery 109 carry in parallel on direct current UPS controller 108.
As shown in Figure 1, supervising device 110 can be a contact signal receiving and displaying device, can be also an integrated engineer station for communication interaction function.As shown in fig. 1, the first killer switch 103, the second killer switch 104, the first Switching Power Supply 105, second switch power supply 106, power supply alternative module 107, direct current UPS controller 108, direct current UPS battery 109 can be delivered to supervising device 110 by output services state contact signal, can on supervising device 110, monitor like this their operating state in real time.In addition, can also real-time monitored on supervising device 110 to information such as information about power, charging and discharging state and the discharge periods of direct current UPS battery 109.The operating state that the each module of energy real-time monitoring system is set of supervising device 110, facilitates staff to monitor and safeguards.
As shown in Figure 1, except the equipment being connected with supervising device 110 connects by connection (in figure shown in dotted line), the connection between all the other equipment is all directly to connect by wire (in figure shown in solid line).Equipment all in Fig. 1 can be arranged on distribution electric plates by the mounting bracket unification of standard, can guarantee that so whole low-voltage distribution system still can be moved normally under earthquake conditions.
As shown in Figure 1, described a kind of nuclear power station backup type redundancy low-voltage distribution system, will be finally for load provides needed direct current output.In actual application, according to rated power, rated voltage and the electric energy of load hold time capacity and the quantity of the direct current UPS battery in option and installment system flexibly.In addition, this low-voltage distribution system is exported the direct current of 24VDC conventionally, if load end need to, such as the direct current of 48VDC or 12VDC etc., can turn DC power module at the corresponding DC of output adjunction.
In sum, the utility model had both been guaranteed the high reliability to low-voltage distribution system such as nuclear power station and the requirement of high security, had also effectively reached the advantages such as space hold is few, simple in structure, easy operating simultaneously.The introducing of two-way redundancy alternating current and Redundanter schalter power supply has reduced the system failure rate being caused by single equipment fault effectively, has increased the availability of system.The introducing of supervising device can the each module of real-time monitoring system operating state, the especially real-time tracking to battery information, greatly facilitate real-time monitoring and the maintenance of staff to whole system.Being used in conjunction with of direct current UPS controller and direct current UPS battery, makes whole system have advantages of flexible configuration, has reduced to take up room, and has also possessed good economic and social benefit in guaranteeing safety and quality.

Claims (3)

1. a used in nuclear power station backup type redundancy low-voltage distribution system, comprise the first alternating current, the second alternating current, the first killer switch, the second killer switch, the first Switching Power Supply, second switch power supply, power supply alternative module, direct current UPS controller and direct current ups power, it is characterized in that: described the first alternating current, the first killer switch, the first Switching Power Supply and power supply alternative module, direct current UPS controller is electrically connected successively, described the second alternating current, the second killer switch, second switch power supply and power supply alternative module, direct current UPS controller is electrically connected successively, described direct current UPS controller and the electrical connection of direct current ups power, described the first Switching Power Supply and second switch power supply are AC/DC power module.
2. used in nuclear power station backup type redundancy low-voltage distribution system according to claim 1, it is characterized in that: also comprise supervising device, described the first killer switch, the second killer switch, the first Switching Power Supply, second switch power supply, power supply alternative module, direct current UPS controller are connected with supervising device respectively with direct current ups power.
3. used in nuclear power station backup type redundancy low-voltage distribution system according to claim 1 and 2, is characterized in that: described power supply alternative module is power supply diode (led) module or double power supply converting switch.
CN201320838433.5U 2013-12-19 2013-12-19 Reserve-type redundancy low-voltage distribution system for nuclear power station Expired - Lifetime CN203707869U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320838433.5U CN203707869U (en) 2013-12-19 2013-12-19 Reserve-type redundancy low-voltage distribution system for nuclear power station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715757A (en) * 2013-12-19 2014-04-09 国核自仪系统工程有限公司 Back-up type redundant low-voltage power distribution system used for nuclear power station
CN111162599A (en) * 2018-11-07 2020-05-15 纬颖科技服务股份有限公司 Power supply device and power supply method
CN113054616A (en) * 2021-03-25 2021-06-29 中海石油(中国)有限公司 Electric power unit of underwater control system with insulation monitoring function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715757A (en) * 2013-12-19 2014-04-09 国核自仪系统工程有限公司 Back-up type redundant low-voltage power distribution system used for nuclear power station
CN111162599A (en) * 2018-11-07 2020-05-15 纬颖科技服务股份有限公司 Power supply device and power supply method
CN111162599B (en) * 2018-11-07 2022-04-29 纬颖科技服务股份有限公司 Power supply device and power supply method
CN113054616A (en) * 2021-03-25 2021-06-29 中海石油(中国)有限公司 Electric power unit of underwater control system with insulation monitoring function

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GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 200241 No. 428 East Jiangchuan Road, Shanghai, Minhang District

Patentee after: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.

Address before: 200241. A2036, building B, building 555, Dongchuan Road, Minhang District, Shanghai

Patentee before: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140709