CN206077059U - A kind of terminal lightning protection HVDC no-break power unit - Google Patents

Abstract

This utility model is related to a kind of terminal lightning protection HVDC no-break power unit, and its monitoring information processes and B/I level lightning protection devices are provided between transmitter unit and monitoring information receiving unit, and the Direct Current Distribution Unit is provided with C/II level siganl thunder-proof devices with load electrical equipment；Alternating current power supply input accesses the ac input end of hot plug connector, and DC supply input access is the direct-flow input end of hot plug connector, and is exported from DC output end；The alternating current power supply output connection Alternating Current Unit of power supply output module, then connects AC rectification module, then connects the modular converter of DC decompression module, then access Direct Current Distribution Unit；The voltage reduction module of the DC source output connection DC decompression module of power supply output module, then access Direct Current Distribution Unit；This utility model circuit ingenious, power supplying efficiency of design improves, it is to avoid environmental factorss are to each power supply end and the adverse effect of Surveillance center so that equipment using safety and reliability obtain significantly effectively improving.

Description

A kind of terminal lightning protection HVDC no-break power unit

Technical field

This utility model is related to a kind of power electrical equipment, more particularly to a kind of terminal lightning protection HVDC uninterrupted power source Equipment.

Background technology

At present, traditional ac uninterrupted power supply has moved towards the dead end, the release of DC UPS gradually.Direct current is not Uninterruptible power can be greatly enhanced the reliability of automatic control system electricity consumption, reduce the economic loss and peace caused because of power failure Full accident.Meanwhile, it is DC UPS simple structure, low cost, easy to maintenance.Ac uninterrupted power supply with it is DC uninterrupted Power supply is compared, and increased an inversion link.It is equally known that the circuit structure of inverter than the complicated several times of commutator with On.Relative to exchange ups system, DC UPS has the advantages that parallel redundancy, reliability height, safety and efficiency The advantages of significantly improving.Battery can be directly output to electrical equipment with DC power supplier parallel connection, and accumulator can be born The electric discharge of decades of times rated current, so DC UPS has powerful overload capacity.Ac uninterrupted power supply is then received To the restriction of itself capacity, output current no more than rated value, and high energy consumption, reliability are again low.On the other hand, due to opening The development of powered-down source technology, at present the Switching Power Supply of various electrical equipments is all Width funtion, and AC/DC universal.Thus hand over Stream uninterrupted power source will be replaced by DC UPS.And existing direct current supply is as the industries such as electric power, communication are to straight There is constantly complication, equipment accumulation, structure in the continuous improvement of stream electric power system availability requirement, traditional DC power-supply system The environmental factorss such as defect, the particularly thunders and lightnings such as too fat to move, cost is risen rapidly, inefficiency are for electrical power equipment outlet terminal The phenomenon that interference is produced with Surveillance center terminal is present always so that equipment using safety and reliability be difficult to effectively improve Defect it is especially prominent.

Utility model content

The technical problems to be solved in the utility model is the drawbacks described above for how overcoming prior art, there is provided a kind of to terminal Lightning protection HVDC no-break power unit.

To solve above-mentioned technical problem, this terminal lightning protection HVDC no-break power unit includes that two alternating current power supplys are defeated Enter, DC supply input, a power supply export module, Alternating Current Unit, AC rectification module, DC decompression module, direct current Power supply unit, accumulator battery, monitoring information process transmitter unit, monitoring information receiving unit；Transmission at the monitoring information B/I level lightning protection devices are provided between unit and monitoring information receiving unit, the Direct Current Distribution Unit is provided with load electrical equipment C/II level siganl thunder-proof devices；The power input module includes hot plug connector, and which can be automatically right in the range of ± 2.54mm In, the alternating current power supply input accesses the ac input end of the hot plug connector, and exports from ac output end, described straight Stream power input access is the direct-flow input end of the hot plug connector, and is exported from DC output end；The AC rectification Module includes at least two rectification modules, and the DC decompression module includes modular converter and voltage reduction module；The power supply output The alternating current power supply output connection Alternating Current Unit of module, then connects AC rectification module, reconnects DC decompression module Modular converter, then enters Direct Current Distribution Unit；The DC source output connection DC decompression module of the power supply output module Voltage reduction module, then access Direct Current Distribution Unit；In the AC rectification module, a set of rectification module connects at the monitoring information Transmission unit, remaining rectification module output connect the modular converter of DC decompression module, the Direct Current Distribution Unit after collecting Output directly supply electricity to load electrical equipment.

Used as optimization, two alternating current power supplys input is voltage 380V, and the modular converter of Jing DC decompression modules turns The DC voltage exported after changing be 240V, the DC supply input voltage be 670V, the voltage reduction module of Jing DC decompression modules The low voltage voltage exported after blood pressure lowering is 240V.

A kind of terminal lightning protection HVDC no-break power unit of this utility model relative to existing DC power system, its Simple structure, with low cost, circuit design ingenious, power supplying efficiency and improve, and complete equipment is by outlet terminal and Surveillance center Terminal arranges two the first lightning protection devices, it is to avoid environmental factorss are for Surveillance center's interference phenomenon so that the peace that equipment is used Full property and reliability obtain significantly effectively improving.

Description of the drawings

Below in conjunction with the accompanying drawings a kind of terminal lightning protection HVDC no-break power unit of this utility model is made furtherly It is bright：

Fig. 1 is the wire frame structure schematic diagram of this terminal lightning protection HVDC no-break power unit；

Fig. 2 be this terminal lightning protection HVDC no-break power unit power supply output module in hot plug connector connect Line chart.

In figure：The input of 1- alternating current power supplys, mono- DC supply input of 2-, 3- power supplys output module, 301- ac input ends, 302- ac output ends, 303- direct-flow input ends, 304- DC output ends, 4- Alternating Current Units, 5- AC rectification modules, 501- rectification modules, 6- DC decompression modules, 601- modular converters, 602- voltage reduction modules, 7- Direct Current Distribution Unit, 8- accumulator Group, 9- monitoring informations process transmitter unit, 10- monitoring information receiving units, 11- load electrical equipments, 12-B/I level lightning protection devices, 13-C/II level lightning protection devices.

Specific embodiment

As shown in Figure 1, 2, this terminal lightning protection HVDC no-break power unit includes two alternating current power supply inputs 1, Bar DC supply input 2, power supply output module 3, Alternating Current Unit 4, AC rectification module 5, DC decompression module 6, direct current Power supply unit 7, accumulator battery 8, monitoring information process transmitter unit 9, monitoring information receiving unit 10；At its described monitoring information Be provided with B/I levels siganl thunder-proof device 12 between transmission unit 9 and monitoring information receiving unit 10, the Direct Current Distribution Unit with it is negative Lotus electrical equipment 11 is provided with C/II levels siganl thunder-proof device 13；The power input module 3 includes hot plug connector, its can ± Automatic centering in the range of 2.54mm, the alternating current power supply input 1 access the ac input end 301 of the hot plug connector, and Export from ac output end 302, the access of the DC supply input 2 is the direct-flow input end 303 of the hot plug connector, and Export from DC output end 304；The AC rectification module 5 includes at least two rectification modules 501, the DC decompression module 6 include modular converter 601 and voltage reduction module 602；The alternating current power supply output connection Alternating Current Unit of the power supply output module 3 4, then connect AC rectification module 5, then connect the modular converter 601 of DC decompression module 6, then access DC distribution list Unit 7；The voltage reduction module 602 of the DC source output connection DC decompression module 6 of the power supply output module 3, then access direct current Power supply unit 7；In the AC rectification module 5, a set of rectification module 501 connects the monitoring information process transmitter unit 9, remains The output of remaining rectification module 501 connects the modular converter 601 of DC decompression module 6, the output of the Direct Current Distribution Unit 7 after collecting Load electrical equipment 11 is supplied electricity to directly.Two alternating current power supplys input 1 is voltage 380V, Jing DC decompressions module 6 The DC voltage that modular converter 601 is exported after changing into 240V, 2 voltage of the DC supply input be 670V, Jing DC decompressions The low voltage voltage exported after 602 blood pressure lowering of voltage reduction module of module 6 is 240V.

This utility model includes but is not limited to above-mentioned embodiment, any to meet the product that the claims are described, Fall within protection domain of the present utility model.

Claims (2)

1. a kind of terminal lightning protection HVDC no-break power unit, is characterized in that：Including two alternating current power supplys input (1), one Bar DC supply input (2), power supply output module (3), Alternating Current Unit (4), AC rectification module (5), DC decompression mould Group (6), Direct Current Distribution Unit (7), accumulator battery (8), monitoring information process transmitter unit (9), monitoring information receiving unit (10)；The monitoring information to be processed and be provided with B/I level lightning protection devices between transmitter unit (9) and monitoring information receiving unit (10) (12), the Direct Current Distribution Unit is provided with C/II level siganl thunder-proof devices (13) with load electrical equipment (11)；The power input Including hot plug connector, which can access module (3) in automatic centering in the range of ± 2.54mm, alternating current power supply input (1) The ac input end (301) of the hot plug connector, and export from ac output end (302), the DC supply input (2) Access is the direct-flow input end (303) of the hot plug connector, and is exported from DC output end (304)；The AC rectification Module (5) includes at least two rectification modules (501), and the DC decompression module (6) is including modular converter (601) and blood pressure lowering mould Block (602)；Alternating current power supply output connection Alternating Current Unit (4) of power supply output module (3), then connects AC rectification Module (5), then connects the modular converter (601) of DC decompression module (6), then accesses Direct Current Distribution Unit (7)；The electricity The voltage reduction module (602) of DC source output connection DC decompression module (6) in source output module (3), then access DC distribution Unit (7)；In the AC rectification module (5), a set of rectification module (501) connects the monitoring information process transmitter unit (9), remaining rectification module (501) output connects the modular converter (601) of DC decompression module (6) after collecting, the direct current is matched somebody with somebody The output of electric unit (7) directly supplies electricity to load electrical equipment (11).

2. terminal lightning protection HVDC no-break power unit according to claim 1, is characterized in that：Two exchanges Power input (1) is voltage 380V, the DC voltage exported Jing after modular converter (601) conversion of DC decompression module (6) For 240V, DC supply input (2) voltage is 670V, defeated Jing after voltage reduction module (602) blood pressure lowering of DC decompression module (6) The low voltage voltage for going out is 240V.