CN204992750U - Incessant friendship direct current system of communication terminal of transformer substation - Google Patents

Incessant friendship direct current system of communication terminal of transformer substation Download PDF

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Publication number
CN204992750U
CN204992750U CN201520439334.9U CN201520439334U CN204992750U CN 204992750 U CN204992750 U CN 204992750U CN 201520439334 U CN201520439334 U CN 201520439334U CN 204992750 U CN204992750 U CN 204992750U
Authority
CN
China
Prior art keywords
power
direct current
communication terminal
transformer substation
converter
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201520439334.9U
Other languages
Chinese (zh)
Inventor
车军岩
王小康
杨阳
胡磊
梁小雨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Yantai Power Supply Co of State Grid Shandong Electric Power Co
Original Assignee
State Grid Corp of China SGCC
Yantai Power Supply Co of State Grid Shandong Electric Power Co
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 State Grid Corp of China SGCC, Yantai Power Supply Co of State Grid Shandong Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN201520439334.9U priority Critical patent/CN204992750U/en
Application granted granted Critical
Publication of CN204992750U publication Critical patent/CN204992750U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an incessant friendship direct current system of communication terminal of transformer substation, its characterized in that: it includes municipality's electrical socket (1), and rectifier module (5) is connected in municipality's electrical socket (1), and dispatch IP phone (4), two -way power converter (6), dc -to -ac converter (9) are connected respectively in rectifier module (5), two -way power converter (6) connect function switch (7), and lithium cell group (8), dc -to -ac converter (9) connection information terminal (2) are connected in functional switch (7). The utility model relates to a for multi -functional integral type equipment both can provide the direct current, can provide the alternating current again. It is small, long service life, the safety and stability is reliable.

Description

The uninterrupted supplied by AC/DC electricity system of a kind of transformer substation communication terminal
Technical field
The utility model relates to power grid enterprises' power communication and information terminal apparatus power supply, particularly relates to the uninterrupted supplied by AC/DC electricity system of a kind of transformer substation communication terminal, belongs to technical field of electric power communication.
Background technology
Along with the development of science and technology, electric power enterprise transformer station major part realizes unattended operation by automated system, configuration monitoring terminal in transformer station, in on-the-spot switching manipulation O&M maintenance process, check substation system scheme figure, operation order, work ticket etc., meet Dynamic System needs.Power dispatching telephone also brings into use the IP phone of advanced technology, for power dispatching telephone, requires the reliability of height, not only under normal circumstances, and under harsh climate condition and when electric power system has an accident, also must ensure that phone is unimpeded.The safety of safe and stable operation to electrical network of the two has indispensable significance.Transformer station's existing communication DC power system is general it is considered that power for the communication equipment in communications equipment room, do not consider the power demands of master-control room information terminal and new clothes IP phone in station, the power supply of the two is all adopt alternating current 220V mains-supplied (see Fig. 1) in station at present.The accessory power supply 3 of power consumption equipment information terminal 2 and scheduling IP phone 4, being connected to commercial power socket 1(scheduling IP phone 4 by electric power plug socket needs powered by direct current, through accessory power supply 3, alternating current 220V civil power is converted to direct current)., there is larger potential safety hazard in this kind of supply power mode, is mainly reflected in following 2 points: one is that electric power plug socket breaks down power-off, then internal information terminal of standing and IP phone power-off are simultaneously shut down.Two is once electrical network has an accident, and transformer station stands dead electricity entirely, then cause equally the two all power-off shut down, its due effect cannot be played.
Utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and provides a kind of integral-type equipment that adopts both can provide direct current, alternating current can be provided again, volume is little, long service life, the uninterrupted supplied by AC/DC electricity system of the reliable a kind of transformer substation communication terminal of safety and stability.
The purpose of this utility model can be reached by following measure: the uninterrupted supplied by AC/DC electricity system of a kind of transformer substation communication terminal, it is characterized in that it comprises commercial power socket, commercial power socket connects rectification module, rectification module connects scheduling IP phone, bidirectional power converter, inverter respectively, bidirectional power converter linkage function switch, functional switch connects lithium battery group, inverter link information terminal.
The utility model can produce following good effect compared with the prior art: it is single that the utility model overcomes existing supply power mode, the standby shortcoming ensureing power supply without male offspring, adopt integral-type equipment both can provide direct current, alternating current can be provided again, also have the accumulation of energy of lithium battery group, safety and stability is reliable simultaneously.When losing suddenly electric main, still can in reasonable time, guarantee information terminal and dispatching telephone normally use.The utility model set accessory power supply, inverter and storage battery function, in one, adopt low-power consumption, high energy storage means, small in volume, easy to use and flexible.
The utility model alternating current 220V civil power inputs, and by rectification module, exports direct current, powers (removing accessory power supply) directly to scheduling IP phone; There is provided alternating current to export by inverter, for information terminal provides the power supply of safety and stability simultaneously.Alternating current 220V civil power is powered to information terminal after the rectification and inversion of low-power consumption, can isolate the impact of voltage ripple of power network and thunder and lightning, the safety of guarantee information terminal.Meanwhile, direct current by bidirectional power converter and functional switch to lithium battery group charging energy-storing.
The advantages such as bidirectional power converter is compared and traditional utilized two check configuration to realize the scheme of energy two-way transmission, and have and use power device few, volume is little, the high and quick switching transmission direction of power density.In direct current uniterruptible power system, when civil power is normal, electrical network by bidirectional power converter to lithium battery group charging energy-storing, when the under-voltage operation of civil power or power-off time, then by bidirectional power converter to DC load and inverter power supply to provide the load energy, the continuity to load supplying when ensureing municipal power failure.
Adopt the energy storage of lithium battery group, be having extended cycle life due to lithium battery, discharge platform is mild, the voltage of single battery is high, and energy density height i.e. battery are relatively lighter, and the cycle life of lead-acid battery is poor, energy heavy-current discharge, heavier, and plumbous and sulfuric acid all contaminated environment.The mass ratio of lithium battery and volume ratio ability are all higher than lead-acid battery general about 40%; LiFePO4 general at present charges 1500 times, does not have memory effect, to charge after 1500 times about 85% storage capacity, and lead-acid battery is about 500 times, and memory effect is obvious; Lithium battery moon self discharge <3%, lead-acid battery 15 ~ 30%, difference is obvious; The battery of briefly same capacity, when heavy-current discharge, lithium battery releases the electricity of about 30% than lead-acid battery more.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of existing transformer substation communication terminal ac power supply system;
Fig. 2 is structured flowchart of the present utility model.
Embodiment
Preferred forms of the present utility model below in conjunction with accompanying drawing elaborates:
Embodiment: the uninterrupted supplied by AC/DC electricity system (see Fig. 2) of a kind of transformer substation communication terminal, it comprises rectification module 5, rectification module 5 connects scheduling IP phone 4, bidirectional power converter 6, inverter 9 respectively, bidirectional power converter 6 linkage function switch 7, functional switch 7 connects lithium battery group 8, inverter 9 link information terminal 2.
Alternating current 220V civil power is introduced by commercial power socket 1, direct current is converted to through rectification module 5, rectification module 5 exports and is divided into three tunnels, one tunnel is that DC load scheduling IP phone 4 is powered, one tunnel connects bidirectional power converter 6, when civil power is normal, controls to charge to lithium battery group 8 by functional switch 7, when the under-voltage operation of civil power or power-off time, lithium battery group 8 to be discharged by functional switch 7 with bidirectional power converter 6 for alternating current-direct current load provides electric energy; An other road connects inverter 9, for AC load information terminal 2 is powered.

Claims (1)

1. the uninterrupted supplied by AC/DC electricity system of transformer substation communication terminal, it is characterized in that: it comprises commercial power socket (1), commercial power socket (1) connects rectification module (5), rectification module (5) connects scheduling IP phone (4), bidirectional power converter (6), inverter (9) respectively, bidirectional power converter (6) linkage function switch (7), functional switch (7) connects lithium battery group (8), inverter (9) link information terminal (2).
CN201520439334.9U 2015-06-25 2015-06-25 Incessant friendship direct current system of communication terminal of transformer substation Expired - Fee Related CN204992750U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520439334.9U CN204992750U (en) 2015-06-25 2015-06-25 Incessant friendship direct current system of communication terminal of transformer substation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520439334.9U CN204992750U (en) 2015-06-25 2015-06-25 Incessant friendship direct current system of communication terminal of transformer substation

Publications (1)

Publication Number Publication Date
CN204992750U true CN204992750U (en) 2016-01-20

Family

ID=55127077

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520439334.9U Expired - Fee Related CN204992750U (en) 2015-06-25 2015-06-25 Incessant friendship direct current system of communication terminal of transformer substation

Country Status (1)

Country Link
CN (1) CN204992750U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104901418A (en) * 2015-06-25 2015-09-09 国网山东省电力公司烟台供电公司 Transformer substation communication terminal uninterupted alternating current and direct current (AC/DC) power supply system
CN107069944A (en) * 2017-06-06 2017-08-18 广州从化精密钣金制造有限公司 The long-range discharge examination maintenance system of communication storage battery group

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104901418A (en) * 2015-06-25 2015-09-09 国网山东省电力公司烟台供电公司 Transformer substation communication terminal uninterupted alternating current and direct current (AC/DC) power supply system
CN107069944A (en) * 2017-06-06 2017-08-18 广州从化精密钣金制造有限公司 The long-range discharge examination maintenance system of communication storage battery group

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160120

Termination date: 20160625

CF01 Termination of patent right due to non-payment of annual fee