CN104701994B - The remote maintenance device of uninterrupted power source - Google Patents

The remote maintenance device of uninterrupted power source Download PDF

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Publication number
CN104701994B
CN104701994B CN201510149311.9A CN201510149311A CN104701994B CN 104701994 B CN104701994 B CN 104701994B CN 201510149311 A CN201510149311 A CN 201510149311A CN 104701994 B CN104701994 B CN 104701994B
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China
Prior art keywords
relay
connectivity port
normally
remote
terminal unit
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CN201510149311.9A
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Chinese (zh)
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CN104701994A (en
Inventor
单喜斌
麻亚鹏
宋宗勋
管清伟
王磊
刘帅
谷东昭
于晓飞
刘伟
王晓静
王本利
连晓华
许晓康
张瀚
于卫卫
王志英
张国柱
李晓志
曲子超
丛玉頔
王旭
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State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Priority to CN201510149311.9A priority Critical patent/CN104701994B/en
Publication of CN104701994A publication Critical patent/CN104701994A/en
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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention proposes a kind of remote maintenance device of uninterrupted power source, including the collection of voltage acquisition, switching signal and three loops of remote control, and three ports are drawn from voltage acquisition circuit;Remote control loop is powered by AC power, its positive and negative interpolar first and second relay in parallel, above-mentioned relay is connected with the normally opened contact of third and fourth relay respectively, 3rd relay normally open contact is in parallel with the normally opened contact of the first relay the 3rd, the negative pole of one end connection dc source of third and fourth relay, fourth, fifth port is drawn respectively from its other end, and the positive pole of dc source draws the ten, the ten Single ports respectively;Second relay normally closed contact is connected with the first relay, and first the second normally opened contact of relay draws the eight, the nine ports;Switching signal acquisition circuit includes first the first normally-closed contact of relay, and the six, the seven ports are drawn in the contact.Device involved in the present invention can monitor the magnitude of voltage and its working condition of battery, its progress discharge and recharge of energy Remote.

Description

The remote maintenance device of uninterrupted power source
Technical field
The present invention relates to technical field of electric power automation, more particularly to one kind can monitor uninterrupted power source in real time(UPS) The magnitude of voltage of interior battery and the working condition of battery, and the uninterrupted of discharge and recharge can be carried out with Remote battery The remote maintenance device of power supply.
Background technology
The remote terminal unit of transformer station(RTU)It is the terminal device of automation system for the power network dispatching, RTU is responsible for transformer station with adjusting The information transmission spent between automated system.RTU is powered by uninterrupted power source, that is, is entered by AC and DC dual power supply Row power supply, exchange is main power supply during normal operation, and direct current is stand-by power supply.When AC power breaks down, dc source Switch to main power supply.
UPS working conditions need to obtain by plant stand person on duty's periodical inspection substation equipment.However as power network development, become Power station quantity increase, causes manual patrol cycle stretch-out.Once UPS batteries break down, it is difficult timely only manually to make an inspection tour It was found that this can influence the safe operation of RTU in transformer station.And during UPS use, at least need to battery every year A charge and discharge maintenance job is carried out, it is artificial to carry out charge and discharge maintenance work labor intensive material resources.
The content of the invention
For overcome the deficiencies in the prior art, the present invention, which proposes one kind, can monitor battery in uninterrupted power source in real time Magnitude of voltage and battery working condition, and can with Remote battery carry out discharge and recharge uninterrupted power source it is remote Journey attending device.
To achieve these goals, the present invention proposes a kind of remote maintenance device of uninterrupted power source, described device bag Voltage acquisition circuit, switching signal acquisition circuit and remote control loop are included, three loops are equipped with and remote terminal unit The connectivity port being connected, wherein the voltage acquisition circuit includes voltage acquisition module, draw from the voltage acquisition module Go out three connectivity ports, wherein the first connectivity port and second connection end mouth are used to be connected with the both positive and negative polarity of battery, the 3rd Connectivity port is used to be connected with the RS-232 serial ports of the remote terminal unit;The remote control loop is powered by AC power, Be connected in parallel the first relay and the second relay between the AC power both positive and negative polarity, first relay and second after Normally opened contact of the electrical equipment respectively with the 3rd relay and the 4th relay is connected, and the normally opened contact of the 3rd relay is also with 3rd normally opened contact of one relay is in parallel, the negative pole of one end connection dc source of the 3rd relay, its other end The 4th connectivity port is drawn to be used to be connected with the first Remote Control Interface of the remote terminal unit;One end of 4th relay connects The negative pole of dc source is connect, its other end draws the 5th connectivity port and is used to be connected with the second Remote Control Interface of the remote terminal unit Connect;The tenth connectivity port is drawn respectively from the positive pole of the dc source and the 11st connectivity port is used for and the remote terminal unit COM1 interfaces be connected with COM2 interfaces;The normally-closed contact of second relay is in series with first relay, from The 8th connectivity port is drawn at the both ends of the normally opened contact of first relay second respectively and the 9th connectivity port be respectively used to The negative pole of the AC power and the UPS power cathode are connected;The switching signal acquisition circuit includes described the First normally-closed contact of one relay, and draw the 6th connectivity port and the 7th from the first normally-closed contact of first relay Connectivity port, it is respectively used to be connected with the com interface of the remote terminal unit and YX1 interfaces.
Preferably, first relay and the second relay use A.C. contactor.
Preferably, the 3rd relay and the 4th relay use electromagnetic absorption joint type relay.
The beneficial effect of the program of the present invention is that the remote maintenance device of above-mentioned uninterrupted power source can monitor in real time The working condition of the magnitude of voltage of battery and battery in uninterrupted power source, and charge and discharge can be carried out with Remote battery Electronic work.
Brief description of the drawings
Fig. 1 shows the theory diagram of the remote maintenance device of uninterrupted power source involved in the present invention.
Embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings.
The remote maintenance device of uninterrupted power source involved in the present invention includes voltage acquisition circuit, switching signal gathers back Road and remote control loop, above three loop are connected with remote terminal unit, and the annexation between specific each loop is such as Shown in Fig. 1.
Voltage acquisition circuit:The voltage acquisition circuit includes voltage acquisition module 2, from the voltage acquisition module 2 Three connectivity ports are drawn, wherein the first connectivity port A and second connection end mouth B are connected to the both positive and negative polarity of battery 3, the 3rd connects Port C is met with the RS-232 serial ports of the RTU4 to be connected.The voltage acquisition module 2 is used for the electricity for measuring the battery 3 Pressure value, and the real-time voltage value is sent to the RTU4, operation maintenance personnel can be monitored in real time by dispatch automated system The magnitude of voltage of the battery 3, voltage acquisition module 2 involved in the present invention are common voltage acquisition module, therefore no longer Repeat specific voltage collection circuit.
Remote control loop:The remote control loop is powered by AC power, specifically the positive pole in AC power The first relay C1 and the second relay C2, above-mentioned first relay are connected in parallel between 220V-L contacts and negative pole 220V-N contacts Device C1 and the second relay C2 is using A.C. contactor, and the first relay C1 and the second relay C2 are respectively with the 3rd Relay YK1 and the 4th relay YK2 normally opened contact YK1-1 and YK2-1 series connection, the 3rd relay YK1 and the 4th after Electrical equipment YK2 is using electromagnetic absorption joint type relay, the normally opened contact YK1-1 and the first relay of the 3rd relay YK1 C1 the 3rd normally opened contact C1-3 is in parallel, the negative pole of one end connection dc source of the 3rd relay YK1, its other end The 4th connectivity port D is drawn with the first Remote Control Interface YKH1 of the remote terminal unit RTU4 to be connected;The 4th relay YK2 One end connection dc source negative pole, its other end draws the second distant of the 5th connectivity port E and remote terminal unit RTU4 Control interface YKH2 is connected;The tenth connectivity port J and the 11st connectivity port K is drawn respectively from the positive pole of the dc source to connect It is connected to the COM1 interfaces and COM2 interfaces of the remote terminal unit RTU4;The normally-closed contact C2-1 of the second relay C2 with it is described First relay C1 is in series, and the 8th connection end is drawn respectively from the second normally opened contacts of the first relay C1 C1-2 both ends Mouth H and the 9th connectivity port I, wherein the 8th connectivity port H is connected with the negative pole of AC power, the 9th connection end Mouth I is connected to the power cathode of the UPS, and the positive source of the UPS is connected to the positive pole of AC power.
Switching signal acquisition circuit:The switching signal acquisition circuit first including the first relay C1 is normally closed to be touched Point C1-1, and draw at the 6th point from first relay C1 the first normally-closed contact C1-1 and meet port F and the 7th connectivity port G, it is respectively connecting to the com interface and YX1 interfaces of the RTU4.The first normally-closed contact C1-1's of the first relay C1 opens Off status reflects the charging and discharging state of battery 3, when the first normally-closed contact C1-1 of the first relay C1 is in closure During state, show that the battery 3 is in discharge condition;When the first normally-closed contact C1-1 of the first relay C1 is in disconnected During open state, show that the battery 3 is in charged state.Operation maintenance personnel can monitor institute in real time by dispatch automated system State the charging and discharging state of battery 3.
The remote maintenance device of uninterrupted power source involved in the present invention one co-exists in three kinds of work shapes in use State:
The first working condition:The UPS1 is powered by AC power, and battery 3 is in floating charge state.In this work Under state, the first relay C1 is powered, and the second relay C2 is not charged, now the first of the first relay C1 Normally-closed contact C1-1 disconnects, the second normally opened contact C1-2 of the first relay C1 closure, and the of the first relay C1 Three normally opened contact C1-3 are also closed;The normally-closed contact C2-1 closures of the second relay C2, therefore in the first working condition Under, the UPS1 charges by mains-supplied, while for the battery 3.
Second of working condition:The UPS1 is powered by battery 3, i.e., battery 3 is in discharge condition.When needs are to storing When battery 3 carries out electric discharge maintenance work, the second Remote Control Interface YKH2 of the RTU4 is sent by dispatch automated system and put Electrical remote control order, the telecommand close the normally opened contact YK2-1 of the 4th relay YK2, disconnect again afterwards.When described During the 4th relay YK2 normally opened contact YK2-1 closures, the second relay C2 is powered, and the normally closed of the second relay C2 is touched Point C2-1 disconnects, the first relay C1 dead electricity, and following action occurs for three contacts of the first relay C1:It first Normally-closed contact C1-1 is closed, and shows that battery 3 is in discharge condition;Its second normally opened contact C1-2 disconnects so that the UPS1 Dead electricity is exchanged, is powered by battery 3;Its 3rd normally opened contact C1-3 disconnects.Due to the normally opened contact of the 4th relay YK2 Disconnected again after YK2-1 so that the second relay C2 dead electricity, the normally-closed contact C2-1 closures of the second relay C2.Due to The normally opened contact YK1-1 and the first relay C1 of the 3rd relay YK1 the 3rd normally opened contact C1-3 are in disconnecting shape State, so the first relay C1 realizes the first relay C1 self-sustaining still in power failure state.
During electric discharge, operation maintenance personnel can be monitored described the battery 3 in real time by dispatch automated system The magnitude of voltage of battery 3, the voltage ratio of battery 3 is pre-set in dispatch automated system compared with threshold value, when the electric power storage When the magnitude of voltage in pond 3 is reduced to above-mentioned voltage ratio compared with below threshold value, the dispatch automated system sends alarm signal automatically, carries Show that the electric discharge of operation maintenance personnel battery 3 is completed, now dispatch automated system is sent to the first Remote Control Interface YKH1 of the RTU4 Recover Alternating Current Power Supply guidance command, into the third working condition.The above-mentioned magnitude of voltage by battery 3 enters with voltage ratio compared with threshold value Row, which compares and sends alarm signal, belongs to common function setting, will not be described here.
The third working condition:The UPS1 is powered by AC power, and battery 3 is in floating charge state.When battery 3 is complete Into after electric discharge maintenance work, recovery exchange is sent to the first Remote Control Interface YKH1 of the RTU4 by dispatch automated system and is supplied Electrical remote control order, the telecommand close the normally opened contact YK1-1 of the 3rd relay YK1, disconnect again afterwards.When described During the 3rd relay YK1 normally opened contact YK1-1 closures, the first relay C1 is powered, and three of the first relay C1 touch Following action occurs for point:Its first normally-closed contact C1-1 disconnects, and shows that battery 3 is in charged state;Its second normally opened contact C1-2 is closed so that the UPS1 is powered by AC power, and battery 3 is transferred to floating charge state;Its 3rd normally opened contact C1-3 is closed Close, realize the first relay C1 self-sustaining.
Above-mentioned three kinds of cycle of states are carried out, and are realized the magnitude of voltage of battery 3 and battery 3 in uninterrupted power source and are worked The real-time monitoring of state, and charge/discharge action can be carried out with Remote battery 3.

Claims (1)

  1. A kind of 1. remote maintenance device of uninterrupted power source, it is characterised in that:Described device includes voltage acquisition circuit, switch letter Number acquisition circuit and remote control loop, three loops are equipped with the connectivity port being connected with remote terminal unit,
    Wherein described voltage acquisition circuit includes voltage acquisition module, and three connection ends are drawn from the voltage acquisition module Mouthful, wherein the first connectivity port and second connection end mouth are used to be connected with the both positive and negative polarity of battery, the 3rd connectivity port is used for It is connected with the RS-232 serial ports of the remote terminal unit;
    The remote control loop is powered by AC power, and the first relay is connected in parallel between the AC power both positive and negative polarity With the second relay, wherein first relay and the second relay use A.C. contactor, first relay and Normally opened contact of second relay respectively with the 3rd relay and the 4th relay is connected, the 3rd relay and the 4th relay Device uses electromagnetic absorption joint type relay, the 3rd normally opened contact of the normally opened contact of the 3rd relay also with the first relay Be in parallel, the negative pole of one end of the 3rd relay connection dc source, its other end draw the 4th connectivity port be used for First Remote Control Interface of the remote terminal unit is connected;The negative pole of one end connection dc source of 4th relay, its is another Draw the 5th connectivity port and be used to be connected with the second Remote Control Interface of the remote terminal unit in one end;From the dc source just The tenth connectivity port and the 11st connectivity port are drawn respectively for the COM1 interface and COM2 interfaces with the remote terminal unit in pole It is connected;The normally-closed contact of second relay is in series with first relay, normal from first relay second Open contact both ends draw the 8th connectivity port respectively and the 9th connectivity port be respectively used to the negative pole of the AC power with And the power cathode of the uninterrupted power source is connected;
    The switching signal acquisition circuit includes the first normally-closed contact of first relay, and from first relay First normally-closed contact draws the 6th connectivity port and the 7th connectivity port, and it is respectively used to the com interface with the remote terminal unit It is connected with YX1 interfaces.
CN201510149311.9A 2015-04-01 2015-04-01 The remote maintenance device of uninterrupted power source Active CN104701994B (en)

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Publication number Priority date Publication date Assignee Title
CN108390444A (en) * 2018-05-11 2018-08-10 江苏盐开电气有限公司 Automatic discharge device and its control method
CN112261843B (en) * 2020-10-27 2024-05-28 国网福建省电力有限公司石狮市供电公司 Power-off and power-on heat dissipation device for power distribution automation terminal and working method thereof

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* Cited by examiner, † Cited by third party
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US5955844A (en) * 1997-08-25 1999-09-21 Redgate; Robert Smart logic switching uninterruptible power source
JP2003169427A (en) * 2001-11-30 2003-06-13 Mitsubishi Electric Corp Remote monitoring system for uninterruptible power supply
CN2733616Y (en) * 2004-10-26 2005-10-12 于伟儒 UPS backup battery maintainer
JP2006353023A (en) * 2005-06-16 2006-12-28 Chugoku Electric Power Co Inc:The System and method for remotely monitoring residual capacity of storage battery
CN201805281U (en) * 2010-09-17 2011-04-20 重庆荣凯川仪仪表有限公司 Remote monitor applied to industrial UPS
CN201910671U (en) * 2010-12-31 2011-07-27 深圳市禾力科技有限公司 UPS (Uninterrupted Power Supply) device capable of being remotely monitored
CN202856392U (en) * 2012-08-28 2013-04-03 柳州市海格电气有限公司 Uninterrupted power supply
CN203703311U (en) * 2014-02-21 2014-07-09 梁鋆辉 Natural gas transportation valve remote opening and closing device
CN104037942A (en) * 2014-06-10 2014-09-10 国家电网公司 Dispatching automation system based UPS (Uninterruptible Power Supply) remote maintenance system
CN204442021U (en) * 2015-04-01 2015-07-01 国家电网公司 A kind of remote maintenance device of uninterrupted power supply

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Inventor after: Dan Xibin

Inventor after: Wang Xiaojing

Inventor after: Wang Benli

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