CN104794844B - A kind of converter station valve hall fire signal expanding unit - Google Patents
A kind of converter station valve hall fire signal expanding unit Download PDFInfo
- Publication number
- CN104794844B CN104794844B CN201510196918.2A CN201510196918A CN104794844B CN 104794844 B CN104794844 B CN 104794844B CN 201510196918 A CN201510196918 A CN 201510196918A CN 104794844 B CN104794844 B CN 104794844B
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- CN
- China
- Prior art keywords
- relay
- control
- fire
- contact
- protection system
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- 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.)
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
Abstract
The present invention relates to a kind of converter station valve hall fire signal expanding unit, including 3 relays, each relay includes two normal opened contacts, two normally closed contacts and abnormal alarm contact；The first DC control and protection system will be accessed after the first normal opened contact parallel connection of first relay and the second relay; the second DC control and protection system will be accessed after the second normal opened contact parallel connection of first relay and the second relay, fire control system will be accessed after two normal opened contacts parallel connection of the 3rd relay；First normally closed contact of the first relay is accessed into the first DC control and protection system, the first normally closed contact of the second relay is accessed into the second DC control and protection system, the first normally closed contact of the 3rd relay is accessed into fire control system.The present invention prevents the signal wrong report and misoperation that single relay failure is caused, and also prevents when fire occurs because the device that single relay failure is caused is failure to actuate.
Description
Technical field
The present invention relates to a kind of converter station valve hall fire signal expanding unit, belong to Microcomputer Protection technical field.
Background technology
The price of converter valve is sufficiently expensive, for whole current conversion station, and it invests the half for accounting for whole station investment, is high pressure
The key equipment of HVDC Converter Stations.Therefore the protection of converter valve is as the core paid close attention to.Converter valve is arrived greatly, and small arrive can
Silicon cell is controlled, typically all existing very complete ripe electric protective device.But the converter station valve hall fire thing occurred in recent years
Therefore, the new problem of converter station valve hall fire-fighting protection is proposed to vast work about electric power person.In general, system caused by fire
Idle time length is relevant with the damaged condition of equipment, and the system shutdown time is short if fire can be detected and suppressed early, on the contrary
It is then long.The recovery of concrete on fire is in addition to changing and damaging equipment, also due to the environmental pollution removing work that fire is caused, often the latter
The time is more spent than the former.In order to improve reliability, the availability of system, loss is reduced, people start to fire detection especially
It is that incipient fire detection and fire-fighting system are studied.
Prevent the key facility that fire occurs and spread from including fire detection, warning system, fire water in converter station valve hall
System and other fire fighting devices.The detection sensor that current China converter station valve hall fire alarm system is used typically has pole
Early stage probe and it is ultraviolet visit first two, pole early stage probe is sensitive to smog, and ultraviolet probe is sensitive to naked light and arc light.But occur
Concrete on fire is only sent out alarm signal and can not stopped transport at once elimination failure, and existing fire alarm installation is almost only one entirely
Individual relay, so in the case where occurring abnormal conditions, easily causes the misoperation of device or causes device not when fire occurs
Action, may result in the loss of very great accident and property.
The content of the invention
It is an object of the invention to provide a kind of converter station valve hall fire signal expanding unit, to solve existing fire report
Alarm device occur abnormal conditions under, easily cause the misoperation of device or caused when fire occurs device be failure to actuate ask
Topic.
To achieve the above object, the solution of the present invention includes a kind of converter station valve hall fire signal expanding unit, the extension
Device includes relay, and relay includes two normal opened contacts, two normally closed contacts and abnormal alarm contact；First DC control
Protection system, the second DC control and protection system, fire control system, expanding unit includes 3 relays：First relay
Device, the second relay and the 3rd relay, will the first relay and the second relay the first normal opened contact it is in parallel after access the
Corresponding port in one DC control and protection system, the second normal opened contact parallel connection of the first relay and the second relay is followed by
Enter corresponding port in the second DC control and protection system, fire-fighting control will be accessed after two normal opened contacts parallel connection of the 3rd relay
Corresponding port in system processed.
First normally closed contact of the first relay is accessed into the corresponding port of the first DC control and protection system, by second after
First normally closed contact of electrical equipment accesses the corresponding port of the second DC control and protection system, and the first of the 3rd relay normally closed is connect
The corresponding port of point access fire control system.
Second normally closed contact of first, second, and third relay connects the internal controller of the expanding unit.
Existing single relay is expanded to 3 by this expanding unit, and by the normal opened contact of this 3 relays,
Wiring between normally closed node and abnormal alarm contact realize by three relay groups into expanding unit, prevent single relay
Signal wrong report and misoperation that device failure is caused, are also prevented when fire occurs because the device that single relay failure is caused
It is failure to actuate.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention.
Embodiment
The present invention will be further described in detail below in conjunction with the accompanying drawings.
A kind of converter station valve hall fire signal expanding unit, the expanding unit includes relay, and relay includes two often
Open contact, two normally closed contacts and abnormal alarm contact；First DC control and protection system, the second DC control and protection system,
Fire control system, the expanding unit includes 3 relays：First relay, the second relay and the 3rd relay, by first
Corresponding port in the first DC control and protection system is accessed after first normal opened contact of relay and the second relay is in parallel, will
Access and held accordingly in the second DC control and protection system after second normal opened contact of the first relay and the second relay is in parallel
Mouthful, by corresponding port in access fire control system after two normal opened contacts parallel connection of the 3rd relay.
First normally closed contact of the first relay is accessed into the corresponding port of the first DC control and protection system, by second after
First normally closed contact of electrical equipment accesses the corresponding port of the second DC control and protection system, and the first of the 3rd relay normally closed is connect
The corresponding port of point access fire control system.
Based on above technical scheme, with reference to accompanying drawing, provide with next embodiment.
The present invention provides a kind of converter station valve hall fire signal expanding unit, by valve Room fire alarm sensor all the way
24V direct currents alarm signal is reliably forwarded to DC control and protection system (A, B system) and fire control system, is used as valve Room fire
The input signal of Trip Logic discriminating gear.And realize the self-inspection to this interface arrangement interior element and monitoring and this interface arrangement
The transporting function of interior information.
The active contact input signal extension of single channel is 3 sets and outputs signal by the present apparatus, often covers signal and includes normal opened contact, normal
Close contact, abnormal alarm contact.Monitor that 3 tunnels extend the correct operation situation of relay respectively, and sent out by abnormal alarm contact
Go out to extend actuating of relay abnormality alarming signal.Normal opened contact as DC control and protection system primary input contact, by No. 1 after
DC control and protection system A is accessed after first normal opened contact of electrical equipment and No. 2 relays is in parallel, by No. 1 relay and No. 2 relays
DC control and protection system B is accessed after second normal opened contact of device is in parallel, two normal opened contact parallel connections of No. 3 relays are followed by
Enter fire control system.
It is normal by the first of No. 1 relay for the signal wrong report and misoperation that prevent single extension relay failure from causing
Contact access DC control and protection system A is closed, the first normally closed contact of No. 2 relays is accessed into DC control and protection system B, will
The first normally closed contact access fire control system of No. 3 relays, two point signal is constituted with the input of corresponding normal opened contact.
Second normally closed contact of 3 relays connects internal controller --- the CPU of expanding unit.Monitored and expanded by CPU
The function of relay tip abnormal operation situation is opened up, by monitoring the action situation of every normally closed contact of extension relay second,
The monitoring to relay coil can be realized, during the generation malfunction and misaction situation of any extension relay, CPU is driving
The abnormality alarming actuating of relay, is exported to external control system by abnormal alarm contact.In addition, this expanding unit is also
The probe failure contact of outside input is received, and the action situation for the contact that failed according to external probes is determined whether by inside
CPU drives the abnormality alarming actuating of relay, sends abnormal alarm signal.In addition, this expanding unit is configured with indicator lamp on the spot,
Above the fold is provided normally and police instruction outside casing, and different according to alarm condition, indicator lamp provides flicker and normal bright alarm,
Found in time during so as to operations staff's inspection.
To improve the reliability of system, it can increase in DC control and protection system (A, B system) and fire control system
Plus similar current conversion station make and break contact positive and negative logic anti-error function, to improve the ability that anti-mistaking is dynamic.
Realized by the wiring between the normal opened contact of this 3 relays, normally closed node and abnormal alarm contact by three
Relay group into expanding unit, prevent signal wrong report and misoperation that single relay failure causes, also prevent in fire
Because the device that single relay failure is caused is failure to actuate when calamity occurs.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, for those of ordinary skill in the art, according to the teachings of the present invention, designs various changes
The model of shape, formula, parameter simultaneously need not spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment is carried out are still fallen within protection scope of the present invention.
Claims (2)
1. a kind of converter station valve hall fire signal expanding unit, the expanding unit includes relay, the first DC control and protected
System, the second DC control and protection system, fire control system, wherein, relay include two normal opened contacts, two normally closed connect
Point and abnormal alarm contact, it is characterised in that the relay is 3：First relay, the second relay and the 3rd relay
Device, it is corresponding in the first DC control and protection system by being accessed after the first normal opened contact parallel connection of the first relay and the second relay
Port, will the first relay and the second relay the second normal opened contact it is in parallel after access in the second DC control and protection system
Corresponding port, by corresponding port in access fire control system after two normal opened contacts parallel connection of the 3rd relay；By
First normally closed contact of one relay accesses the corresponding port of the first DC control and protection system, normal by the first of the second relay
Close contact and access the corresponding port of the second DC control and protection system, the first normally closed contact of the 3rd relay is accessed into fire-fighting control
The corresponding port of system processed.
2. converter station valve hall fire signal expanding unit according to claim 1, it is characterised in that first, second and
Second normally closed contact of three relays connects the internal controller of the expanding unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196918.2A CN104794844B (en) | 2015-04-23 | 2015-04-23 | A kind of converter station valve hall fire signal expanding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196918.2A CN104794844B (en) | 2015-04-23 | 2015-04-23 | A kind of converter station valve hall fire signal expanding unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104794844A CN104794844A (en) | 2015-07-22 |
| CN104794844B true CN104794844B (en) | 2017-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510196918.2A Active CN104794844B (en) | 2015-04-23 | 2015-04-23 | A kind of converter station valve hall fire signal expanding unit |
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| Country | Link |
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| CN (1) | CN104794844B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655973B (en) * | 2016-03-11 | 2018-07-24 | 国网福建省电力有限公司 | A kind of flexible direct current converter station IGBT valves Room fire prevention measure wavy trajectory |
| CN105680468B (en) * | 2016-04-15 | 2018-09-25 | 国网福建省电力有限公司 | A kind of fool proof door interlock system in flexible direct current converter station valve Room |
| CN112870617A (en) * | 2021-01-25 | 2021-06-01 | 南京南瑞继保电气有限公司 | Linkage control method for compressed air foam system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2694200A1 (en) * | 1992-07-31 | 1994-02-04 | Anelec | Fire protection system preventing unnecessary triggering - has microprocessor connected to sensors with function control to provide logical fault signal and alarm control for alarm signal |
| CN103928910A (en) * | 2014-04-25 | 2014-07-16 | 国家电网公司 | Protection system of ultra-high-voltage direct-current transmission converter station |
| CN104410041A (en) * | 2014-11-05 | 2015-03-11 | 许继集团有限公司 | Convertor station valve hall fire tripping device logic judgment method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101023800B1 (en) * | 2009-06-01 | 2011-03-21 | 주식회사 케이엘정보 | Remote fire protection system |
-
2015
- 2015-04-23 CN CN201510196918.2A patent/CN104794844B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2694200A1 (en) * | 1992-07-31 | 1994-02-04 | Anelec | Fire protection system preventing unnecessary triggering - has microprocessor connected to sensors with function control to provide logical fault signal and alarm control for alarm signal |
| CN103928910A (en) * | 2014-04-25 | 2014-07-16 | 国家电网公司 | Protection system of ultra-high-voltage direct-current transmission converter station |
| CN104410041A (en) * | 2014-11-05 | 2015-03-11 | 许继集团有限公司 | Convertor station valve hall fire tripping device logic judgment method |
Non-Patent Citations (2)
| Title |
|---|
| 换流站阀厅消防报警改跳闸的实施与保护策略;徐辉;《中国科技成果》;20141121(第17期);正文第68-69页 * |
| 特高压直流换流站消防系统分析;潘俊锐等;《电气技术》;20141231(第12期);正文第96-97页 * |
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| CN104794844A (en) | 2015-07-22 |
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