CN103401304A - Intelligent operation power supply switching networking system with direct current contactor - Google Patents

Intelligent operation power supply switching networking system with direct current contactor Download PDF

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Publication number
CN103401304A
CN103401304A CN2013103279727A CN201310327972A CN103401304A CN 103401304 A CN103401304 A CN 103401304A CN 2013103279727 A CN2013103279727 A CN 2013103279727A CN 201310327972 A CN201310327972 A CN 201310327972A CN 103401304 A CN103401304 A CN 103401304A
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CN
China
Prior art keywords
power supply
contact
contactor
source
direct current
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Pending
Application number
CN2013103279727A
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Chinese (zh)
Inventor
杨刚
蒋先武
汪琳琳
门宇华
宁静
罗睿
冯平
陈娟
张燕群
曾文达
陈科
刘忠
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
State Grid Sichuan Electric Power Co Ltd
Original Assignee
SHUANGLIU POWER SUPPLY BUREAU CHENGDU ELECTRIC POWER BUREAU
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 SHUANGLIU POWER SUPPLY BUREAU CHENGDU ELECTRIC POWER BUREAU filed Critical SHUANGLIU POWER SUPPLY BUREAU CHENGDU ELECTRIC POWER BUREAU
Priority to CN2013103279727A priority Critical patent/CN103401304A/en
Publication of CN103401304A publication Critical patent/CN103401304A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an intelligent operation power supply switching networking system with a direct current contactor. The intelligent operation power supply switching networking system comprises a direct current voltage detection controller, a direct current contactor KM, a power supply A and a power supply B, wherein the direct current voltage detection controller comprises a detection contact J1, a detection contact J2, a control contact K1 and a control contact K2, the direct current contactor KM comprises a normally open contact M1, a normally open contact M2, a coil control contact P1 and a coil control contact P2, the power supply A is simultaneously connected with the detection contact J1 and the normally open contact M1, the power supply B is simultaneously connected with the detection contact J2 and the normally open contact M2, the control contact K1 is connected with the coil control contact P1, and the control contact K2 is connected with the coil control contact P2. The intelligent operation power supply switching networking system effectively solves the problem of bottleneck that the mutual standby use of two sets of operation power supply systems can only be realized through manual switching in the use process of the operation power supply system of a power station and a transformer substation in the prior art. The structure is simple, the reliability is high, and the popularization and the use are favorably realized.

Description

Intelligent operating power switching group network system with D.C. contactor
Technical field
The present invention relates to the control field of the operating power of power system transformer substation, is specifically a kind of operation DC power supply automatic control equipment, namely has the intelligent operating power switching group network system of D.C. contactor.
Background technology
Along with the development of intelligent grid, transformer station will progressively realize unattended, and this intelligent requirements for Substation Operating power-supply system and the power supply system for communications is more and more higher.Take the Substation Operating power-supply system as example, in existing transformer station, usually use two to overlap standby each other operating power system, after the incoming call power down of a cover operating power system wherein, during its storage battery power supply, need to its direct current supply bus switching be connected on the direct current supply bus of another set of operating power system by mode manually, owing to must manually switching, can not automatically switch, hinder the realization of Unattended substation.
Summary of the invention
The purpose of this invention is to provide a kind of intelligent operating power switching group network system with D.C. contactor, after making transformer station's standby two cover operating power systems arbitrary cover system incoming call power down therein each other, can both automatically switch and be connected to another set of operating power system.
Realize that technical scheme of the present invention is: the intelligent operating power switching group network system with D.C. contactor, comprise that direct voltage detects controller, D.C. contactor KM, a-power supply, B-source, direct voltage detects controller and comprises detection contact J1 and detect contact J2 and control contact K1 and control contact K2, and D.C. contactor KM comprises that normally opened contact M1 and normally opened contact M2 and coil control contact P1 and coil is controlled contact P2; A-power supply is connected with normally opened contact M1 with detection contact J1 simultaneously, and B-source is connected with normally opened contact M2 with detection contact J2 simultaneously; Control contact K1 and be connected with coil control contact P1, control contact K2 and be connected with coil control contact P2.
Control principle of the present invention is: a-power supply and B-source input direct voltage detect controller, by direct voltage, detect the voltage status that controller detects a-power supply and B-source, closure formation control loop path after the control signal that the control contact K1 of while direct voltage detection controller and control contact K2 receive direct voltage detection controller, be coil conduction or the outage in D.C. contactor KM, cause normally opened contact M1 and normally opened contact M2 closure or disconnect.So just can control mutual switching or the independent running of a-power supply and B-source, when normally opened contact M1 and normally opened contact M2 closure, carry out the mutual switching action of a-power supply and B-source, when normally opened contact M1 and normally opened contact M2 disconnection, carry out the mutual independent running of a-power supply and B-source.
For example: when detected a-power supply and B-source voltage during lower than 240V, direct voltage detects relay adhesive in controller, control contact K1 and control the closed control loop conducting that forms of contact K2, the coil conduction in D.C. contactor KM, normally opened contact M1 and normally opened contact M2 closure ,Control the mutual switching of a-power supply and B-source; When detected a-power supply and B-source voltage voltage during higher than 242V, direct voltage detects relay in controller and disconnects, control contact K1 and control contact K2 and disconnect, control contact K1 and control the closed control loop that forms of contact K2 and disconnect, coil blackout in D.C. contactor KM, normally opened contact M1 and normally opened contact M2 disconnect, and a-power supply and B-source work alone separately, recover normally operation.
A-power supply, B-source are the DC power supply of 220V-440V.
It is BYK1-220 that direct voltage detects the controller model.
D.C. contactor KM rated operational voltage is the direct voltage of 220V-440V; Rated operational current is the 1A-100A direct current.
The model of D.C. contactor KM is BCZ6-100.
Also comprise Switching Power Supply, Switching Power Supply detects controller with direct voltage and is connected.
A-power supply, B-source are the electric power network that battery pack and direct current cabinet are in series or in parallel to form.
A-power supply, B-source are battery pack or direct current cabinet.
Take the Substation Operating power-supply system as example, by what the DC power supply buses of two cover operating power systems of transformer station were connected respectively to D.C. contactor KM, often open the main contacts two ends, the control loop of direct voltage detection controller is connected to the coil of D.C. contactor KM, and the voltage of the batteries that is connected to the DC power supply bus is detected respectively in two test sides.When two cover operating power systems all worked, D.C. contactor KM main contacts disconnected, and two cover operating power systems are respectively load supplying separately.After the AC dump of the first operating power system, the first operating power system is namely by batteries power supply, voltage slow decreasing in the batteries discharge process; DC voltage detector detects the voltage drop of batteries of the first operating power when the predefined magnitude of voltage, its control loop makes the conducting of D.C. contactor KM coil, the conducting thereupon of the main contacts of D.C. contactor KM, the DC power supply bus of two cover operating powers is communicated with, and the second operating power system is the load supplying of two cover operating powers simultaneously.After the interchange incoming call of the first operating power system, when the voltage that DC voltage detector detects the batteries of the first operating power rises to predefined magnitude of voltage, namely disconnect D.C. contactor KM coil, the main contacts of D.C. contactor KM is disconnected, and two cover operating power systems return to normal operating conditions.After the AC dump of the second operating power system, its operating state and aforementioned process are similar.Like this, by the present invention, make two cover operating power systems realize automatic switchover, each other standby function.The second DC power supply is equivalent to the B-source in embodiment, and the first DC power supply is equivalent to a-power supply.
The present invention has solved effectively that the operating power system in present transformer station and power plant exists can only manual switchover realizes two cover operating power systems standby bottleneck each other, and simple in structure, reliability is high, is conducive to promote the use of.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1.
Fig. 2 is the schematic diagram of embodiment 2.
Embodiment
Embodiment 1
As shown in Figure 1, intelligent operating power switching group network system with D.C. contactor, comprise that direct voltage detects controller, D.C. contactor KM, a-power supply, B-source, direct voltage detects controller and comprises detection contact J1 and detect contact J2 and control contact K1 and control contact K2, and D.C. contactor KM comprises that normally opened contact M1 and normally opened contact M2 and coil control contact P1 and coil is controlled contact P2; A-power supply is connected with normally opened contact M1 with detection contact J1 simultaneously, and B-source is connected with normally opened contact M2 with detection contact J2 simultaneously; Control contact K1 and be connected with coil control contact P1, control contact K2 and be connected with coil control contact P2.
A-power supply and B-source input direct voltage detect controller, by direct voltage, detect the voltage status that controller detects a-power supply and B-source, closure formation control loop path after the control signal that the control contact K1 of while direct voltage detection controller and control contact K2 receive direct voltage detection controller, be coil conduction or the outage in D.C. contactor KM, cause normally opened contact M1 and normally opened contact M2 closure or disconnect.So just can control mutual switching or the independent running of a-power supply and B-source, when normally opened contact M1 and normally opened contact M2 closure, carry out the mutual switching action of a-power supply and B-source, when normally opened contact M1 and normally opened contact M2 disconnection, carry out the mutual independent running of a-power supply and B-source.
A-power supply, B-source are the DC power supply of 220V-440V.
It is BYK1-220 that direct voltage detects the controller model.
D.C. contactor KM rated operational voltage is the direct voltage of 220V-440V; Rated operational current is the 1A-100A direct current.
The model of D.C. contactor KM is BCZ6-100.
Also comprise Switching Power Supply, Switching Power Supply detects controller with direct voltage and is connected.
A-power supply, B-source are the electric power network that battery pack and direct current cabinet are in series or in parallel to form.
A-power supply, B-source are battery pack or direct current cabinet.
When detected a-power supply and B-source voltage during lower than 240V, direct voltage detects relay adhesive in controller, control contact K1 and control the closed control loop conducting that forms of contact K2, the coil conduction in D.C. contactor KM, normally opened contact M1 and normally opened contact M2 closure ,Control the mutual switching of a-power supply and B-source; When detected a-power supply and B-source voltage voltage during higher than 242V, direct voltage detects relay in controller and disconnects, control contact K1 and control contact K2 and disconnect, control contact K1 and control the closed control loop that forms of contact K2 and disconnect, coil blackout in D.C. contactor KM, normally opened contact M1 and normally opened contact M2 disconnect, and a-power supply and B-source work alone separately, recover normally operation.
The result of operation is as follows:
1, when a-power supply, during lower than 240V, be incorporated to B-source.
2, when a-power supply, during higher than 242V, disconnect B-source, a-power supply and B-source be independent operating separately.
3, when B-source, during lower than 240V, be incorporated to a-power supply.
4, when B-source, during higher than 242V, disconnect a-power supply, a-power supply and B-source be independent operating separately.
Embodiment 2
As shown in Figure 2, the present invention includes D.C. contactor KM and direct voltage and detect controller; The main contacts two ends of often opening of D.C. contactor KM are connected to the first DC power supply bus HM1 and the second DC power supply bus HM2, and the coil of D.C. contactor KM is connected to the control loop that direct voltage detects controller, and K1, K2 are the outputs of control loop; The direct current cabinet of the first power-supply system is connected to the first DC power supply bus HM1, and it is upper that batteries is connected to the first DC power supply bus HM1, and accumulator battery voltage is detected by the J1 end that direct voltage detects controller; The direct current cabinet of second source system is connected to the second DC power supply bus HM1, and it is upper that batteries is connected to the second DC power supply bus HM1, and accumulator battery voltage is detected by the J2 end that direct voltage detects controller.
When the present invention was used for controlling the operating power system in transformer station or power plant, direct voltage detected controller and selects BYK1-220, and D.C. contactor KM selects BCZ6-100.When DC power supply detects voltage that controller detects arbitrary batteries lower than 240V, namely control the coil of conducting D.C. contactor KM, make the main contacts conducting of D.C. contactor KM; The voltage that the DC power supply detector detects batteries during higher than 242V, is namely controlled the coil that disconnects D.C. contactor KM, and the main contacts of D.C. contactor KM is disconnected.The second DC power supply in the present embodiment is equivalent to the B-source in embodiment, and the first DC power supply is equivalent to a-power supply.

Claims (8)

1. the intelligent operating power switching group network system that has D.C. contactor, it is characterized in that: comprise that direct voltage detects controller, D.C. contactor KM, a-power supply, B-source, direct voltage detects controller and comprises detection contact J1 and detect contact J2 and control contact K1 and control contact K2, and D.C. contactor KM comprises that normally opened contact M1 and normally opened contact M2 and coil control contact P1 and coil is controlled contact P2; A-power supply is connected with normally opened contact M1 with detection contact J1 simultaneously, and B-source is connected with normally opened contact M2 with detection contact J2 simultaneously; Control contact K1 and be connected with coil control contact P1, control contact K2 and be connected with coil control contact P2.
2. the intelligent operating power with D.C. contactor according to claim 1 is switched group network system, and it is characterized in that: a-power supply, B-source are the DC power supply of 220V-440V.
3. the intelligent operating power with D.C. contactor according to claim 1 is switched group network system, and it is characterized in that: it is BYK1-220 that direct voltage detects the controller model.
4. the intelligent operating power with D.C. contactor according to claim 1 is switched group network system, and it is characterized in that: D.C. contactor KM rated operational voltage is the direct voltage of 220V-440V; Rated operational current is the 1A-100A direct current.
5. the intelligent operating power with D.C. contactor according to claim 1 is switched group network system, and it is characterized in that: the model of D.C. contactor KM is BCZ6-100.
6. the described intelligent operating power switching group network system with D.C. contactor of any one according to claim 1-5, it is characterized in that: also comprise Switching Power Supply, Switching Power Supply is connected with direct voltage detection controller.
7. the described intelligent operating power switching group network system with D.C. contactor of any one according to claim 1-5 is characterized in that: a-power supply, B-source are the electric power network that battery pack and direct current cabinet are in series or in parallel to form.
8. the described intelligent operating power switching group network system with D.C. contactor of any one according to claim 1-5, it is characterized in that: a-power supply, B-source are battery pack or direct current cabinet.
CN2013103279727A 2013-07-31 2013-07-31 Intelligent operation power supply switching networking system with direct current contactor Pending CN103401304A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201508408U (en) * 2009-09-18 2010-06-16 国网电力科学研究院武汉南瑞有限责任公司 Intelligent device for wirelessly monitoring state of storage batteries used for direct current screen of transformer substation
CN201616682U (en) * 2009-10-23 2010-10-27 广州东芝白云菱机电力电子有限公司 Optoelectronic triple-isolated DC cabinet power source monitor of collection system
CN201750204U (en) * 2010-07-20 2011-02-16 重庆市电力公司电网检修分公司 Direct current double-power-supply intelligent switching device
CN102946139A (en) * 2012-11-21 2013-02-27 保定供电公司 Spared powder automatic switching device of direct current (DC) power supply
JP2013110887A (en) * 2011-11-22 2013-06-06 Toshiba Mitsubishi-Electric Industrial System Corp Uninterruptible power=supply device
CN103414240A (en) * 2013-07-15 2013-11-27 国家电网公司 Direct current power supply automatic control device
CN203434740U (en) * 2013-07-31 2014-02-12 国家电网公司 Intelligent-type networking system for direct-current contactor of operational power supply

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201508408U (en) * 2009-09-18 2010-06-16 国网电力科学研究院武汉南瑞有限责任公司 Intelligent device for wirelessly monitoring state of storage batteries used for direct current screen of transformer substation
CN201616682U (en) * 2009-10-23 2010-10-27 广州东芝白云菱机电力电子有限公司 Optoelectronic triple-isolated DC cabinet power source monitor of collection system
CN201750204U (en) * 2010-07-20 2011-02-16 重庆市电力公司电网检修分公司 Direct current double-power-supply intelligent switching device
JP2013110887A (en) * 2011-11-22 2013-06-06 Toshiba Mitsubishi-Electric Industrial System Corp Uninterruptible power=supply device
CN102946139A (en) * 2012-11-21 2013-02-27 保定供电公司 Spared powder automatic switching device of direct current (DC) power supply
CN103414240A (en) * 2013-07-15 2013-11-27 国家电网公司 Direct current power supply automatic control device
CN203434740U (en) * 2013-07-31 2014-02-12 国家电网公司 Intelligent-type networking system for direct-current contactor of operational power supply

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Effective date of registration: 20140106

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

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Address before: 610000, Sichuan, Chengdu province Shuangliu County Dongsheng Town, No. 35 Canton Avenue

Applicant before: Shuangliu Power Supply Bureau, Chengdu Electric Power Bureau

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Application publication date: 20131120