CN103559749B - A kind of motor technique interlock system and method - Google Patents
A kind of motor technique interlock system and method Download PDFInfo
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- CN103559749B CN103559749B CN201310533960.XA CN201310533960A CN103559749B CN 103559749 B CN103559749 B CN 103559749B CN 201310533960 A CN201310533960 A CN 201310533960A CN 103559749 B CN103559749 B CN 103559749B
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Abstract
The present invention discloses a kind of motor technique interlock system, includes the motor protection measure and control device of setting corresponding with each breaker in relay bungalow；Further include the field data acquisition control device being correspondingly arranged with each motor, information exchange is realized using IEC61850 standard GOOSE networks between each motor protection measure and control device and each field data acquisition control device.Invention additionally discloses a kind of motor technique interlocking methods based on aforementioned motor technique interlock system; information exchange is carried out using IEC61850 standard GOOSE networks between each motor protection measure and control device and each field data acquisition control device, completes logic control and the technique interlock of motor.Such system and method can realize the information exchange between multiple motor, and substitution scene is original to be connect the method for realizing interlocking by DCS or PLC by a large amount of cables with field device, is reduced use cost, is simplified field connection, enhances the reliability of signal.
Description
Technical field
The present invention relates to a kind of motor technique interlock system and method based on GOOSE, are particularly suitable for power plant and work
The technique interlocking and protection of motor in industry enterprise.
Background technology
In power plant and industrial enterprise, motor is the essential element for ensureing technique normal operation, for important
Motor, generally take redundant configuration（The using and the reserved are dual-purpose one standby）Mode.
One, the interlocked startup of motor
If the motor itself fail or its circuit malfunctions of operation, motor protection device can be with
It was found that the breaker of this motor of its failure and tripping realizes the protection to equipment, hereafter, DCS（Distributed Control
System, scattered control system）Or PLC（Programmable logic Controller, programmable logic controller (PLC)）It receives
After the trip position of breaker, reclosing command, interlocked startup spare motor are sent out by the breaker to spare motor.
If the motor by operation cannot meet process requirements（Generally pass through temperature, pressure, flow, speed
Etc. sensor signals reaction）, then DCS or PLC reclosing command is sent out by the breaker to spare motor, interlocked startup is spare
Motor.
Two, the interlocking of motor stops
If the motor of operation leads to process requirements index（Generally pass through the sensors such as temperature, pressure, flow, speed
Signal reaction）It needs to stop certain motor more than desired value, then DCS or PLC passes through the breaker hair to spare motor
Go out trip command, interlocking stops spare motor.
The above-mentioned technique interlocking method to motor is completed by DCS or PLC and the cooperation of motor protection measure and control device.Electricity
Motivation protection supervisory equipment is generally mounted to breaker cabinet, and device obtains the cable of circuit breaker position signal, electric current, voltage signal
Generally less than 3 meters of distance；DCS or PLC system distance place breaker cabinet relay bungalow and live motor step from farther out,
According to different field conditions, general distance has tens meters to hundreds of meters to differ, as shown in Figure 1, therefore, DCS or PLC are obtained and broken
Road device position, electric current, the status information of live motor and breaker is carried out switching on and off operation cable consumption it is more.
In order to improve the defect of the prior art, thus this case generates.
Invention content
The purpose of the present invention is to provide a kind of motor technique interlock system and method, can realize multiple motor
Between information exchange, substitution scene it is original connect with field device by a large amount of cables by DCS or PLC realization interlock side
Method reduces use cost, simplifies field connection, enhances the reliability of signal.
In order to achieve the above objectives, solution of the invention is：
A kind of motor technique interlock system includes the motor guarantor of setting corresponding with each breaker in relay bungalow
Protect measure and control device；Further include the field data acquisition control device being correspondingly arranged with each motor, each motor protection is surveyed
It controls and information exchange is realized using IEC61850 standard GOOSE networks between device and each field data acquisition control device, by
GOOSE communication networks replace the original a large amount of cables in scene, complete motor technique interlock.
Above-mentioned motor protection measure and control device is mounted in the breaker cabinet of corresponding breaker, field data acquisition control dress
It sets around centered on its corresponding motor within the scope of 20 meters, information exchange is carried out by GOOSE therebetween, is matched
Close the technique interlock completed to motor.
IEC61850 standards are used between above-mentioned each motor protection measure and control device and each field data acquisition control device
The bis- nets of GOOSE realize information exchange.
A kind of motor technique interlocking method based on aforementioned motor technique interlock system, each motor protection observing and controlling dress
It sets and information exchange is carried out using IEC61850 standard GOOSE networks between each field data acquisition control device, complete electronic
The logic control of machine and technique interlock.
Above-mentioned technique interlocking method includes following logic content：
Operating mode one：After service meter electric fault, then motor protection measure and control device protection act passes through
Circuit breaker position signal is issued spare motor field data acquisition control device by GOOSE, if spare motor interlocks work(
It can put into, and spare motor is no different regular signal, then the field data acquisition control device sends out open circuit automatically by GOOSE
Device reclosing command starts spare motor；
Operating mode two：After service meter non-electric quantity failure, motor field data acquisition control device passes through GOOSE
Trip command is sent out, after breaker tripping, motor protection measure and control device issues circuit breaker position signal by GOOSE spare
Motor field data acquisition control device, if spare motor interlock has been put into, and spare motor letter without exception
Number, then the field data acquisition control device sends out breaker closing instruction by GOOSE automatically, starts spare motor；
Operating mode three：If the motor of operation cannot meet the needs of technique, need to start spare motor, then it is standby
With motor field data acquisition control device after the differentiation of technique interlock logic, breaker closing instruction is sent out by GOOSE,
Start spare motor；
Operating mode four：If electronic to this by GOOSE since the demand of technique needs to stop certain motor run
Machine protection supervisory equipment sends out halt instruction and sends out circuit breaker trip after spare motor protection supervisory equipment receives the instruction
Instruction, stops the operation of motor；
Operating mode five：If necessary to opening manually, stopping certain motor, sent instructions to electronic by communication modes or hardwire mode
Machine protection supervisory equipment after the motor protection measure and control device receives instruction, while judging motor field data acquisition control
What device processed was sent opens, stops allowing whether GOOSE signals meet, if it is satisfied, then sending out combined floodgate or trip signal to breaker.
After adopting the above scheme, the present invention passes through each motor protection measure and control device and motor field data acquisition control
IEC61850 standards GOOSE between device（Generic Object Oriented Substation Event）Real-time performance
Information exchange between the motor of redundant configuration replaces the original a large amount of cables in scene by GOOSE communication networks, completes technique
Interlocking and defencive function, have the advantages that：
（1）The present invention is whole on the spot by all hardwires for participating in the interlocking of motor technique of original access DCS or PLC
Change, it will originally over long distances（Tens to hundreds of meters）A large amount of cable transmissions change and transmitted by a small amount of fiber optic communication mode, greatly save
Live cost reduces cable laying；
（2）The present invention enhances the reliability of signal by the bis- net modes of GOOSE, is integrally improved the informationization at scene
It is horizontal.
Description of the drawings
Fig. 1 is existing motor technique interlocking wiring schematic diagram；
Fig. 2 is motor technique interlocking wiring schematic diagram of the present invention；
Fig. 3 is the technique interlock logic schematic diagram that the present invention is applied to electrically driven feed pump.
Specific implementation mode
Below with reference to attached drawing, technical scheme of the present invention is described in detail.
Coordinate shown in Fig. 2, the present invention provides a kind of motor technique interlock system, and the object being directed to is set on each busbar
On motor, each motor has been redefined for operating status or stand-by state, has been also respectively connected on each busbar disconnected
Road device, all breakers are respectively positioned in breaker chamber；The system comprises motor protection measure and control devices and field data to acquire
Control device, wherein motor protection measure and control device is identical as the quantity of breaker and corresponds, and all breakers are set to
In relay bungalow, and each motor protection measure and control device is mounted in the breaker cabinet of corresponding breaker, is completed to this
The defencive function of breaker busbar upper motor and the operation to breaker；Field data acquisition control device and each motor one
One is correspondingly arranged, to realize that the logic discrimination function of motor interlocking, each field data acquisition control device are mounted on its institute
Corresponding surrounding motors, specific location can according to on-site actual situations close proximity to motor arrangement, to reduce cable laying,
In the present embodiment, it is preferred within the scope of 20 meters centered on motor position；The motor protection of different motor is surveyed
Control interlocking between device and field data acquisition control device and block signal using IEC61850 standards GOOSE signals into
Row transmission, completes logic control and the technique interlock of motor.
Aforementioned each device carries out Air conduct measurement using the heartbeat message mechanism of GOOSE and is then moved back once detecting communication failure
Go out interlock, while sending alarm signal；After detecting that communication is normal, such as original interlock is input state, then weighs
New input.In order to ensure interlocking reliability, the bis- nets of GOOSE can be selected, then after GOOSE channel abnormals all the way, another way
Normal information exchange is still kept, ensures the normal of interlock.
The present invention also provides a kind of methods based on aforementioned motor technique interlock system, include specifically following several works
Condition：
Operating mode one：After service meter electric fault, then motor protection measure and control device protection act passes through
Circuit breaker position signal is issued spare motor field data acquisition control device by GOOSE, if spare motor interlocks work(
It can put into, and spare motor is no different regular signal, then the device sends out breaker closing instruction by GOOSE automatically, starts
Spare motor.
Operating mode two：After service meter non-electric quantity failure, motor field data acquisition control device passes through GOOSE
Trip command is sent out, after breaker tripping, motor protection measure and control device issues circuit breaker position signal by GOOSE spare
Motor field data acquisition control device, if spare motor interlock has been put into, and spare motor letter without exception
Number, then the device sends out breaker closing instruction by GOOSE automatically, starts spare motor.
Operating mode three：If the motor of operation cannot meet the needs of technique, need to start spare motor, then it is standby
With motor field data acquisition control device after the differentiation of technique interlock logic, breaker closing instruction is sent out by GOOSE,
Start spare motor.
Operating mode four：If electronic to this by GOOSE since the demand of technique needs to stop certain motor run
Machine protection supervisory equipment sends out halt instruction and sends out circuit breaker trip after spare motor protection supervisory equipment receives the instruction
Instruction, stops the operation of motor；
Operating mode five：If necessary to opening manually, stopping certain motor, can be sent instructions to electricity by communication modes or hardwire mode
Motivation protection supervisory equipment after the device receives instruction, while judging that the motor information acquisition control device sent opens, stops
Allow whether GOOSE signals meet, if it is satisfied, then sending out combined floodgate or trip signal to breaker.
Motor is due to the difference of purposes, and technique interlock logic has larger difference, but the method that the present invention mentions is equal
Suitable for different logics, basic thought is that motor field data acquisition control device is nearby installed at motor scene, disconnected
Road device cabinet installs motor protection measure and control device, and the two acquires information, information exchange is carried out by GOOSE nearby.It ties below
The technique interlocking for closing specific power plant electrically driven feed pump, illustrates the concrete methods of realizing of the present invention.
Live motor feed pump is 3, standby for dual-purpose one under normal circumstances, it is assumed that 3 feed pump number respectively A,
B, the typical logic figure of C, A pump is as shown in figure 3, way at this stage is, the signal in figure in all rectangles is by tens to several
Hundred meters of cable accesses DCS system from scene, is realized in Fig. 3 by DCS system except the electrical relay such as differential protection, overcurrent protection is protected
Protect remaining logic other than logic.
The present invention implementation method be：
1）A motor field data acquisition control device, relay bungalow 3 are respectively installed by the electrically driven feed pump of 3, scene
A motor protection measure and control device is respectively installed on the breaker cabinet of feed pump.
2）For example opened, deaerator level is low by A water supply pump discharge electrically operated gate for the on-site signal of A feed pumps, A electrically driven feed pumps are anti-
The signal wire of solid-line rectangle on the left of the Fig. 3 such as transit telegram police accesses A feed pump field data acquisition control devices, B, C water supply nearby
The on-site signal of pump also accesses corresponding field data acquisition control device；
3）The motor protection measure and control device of A feed pumps access nearby busbar voltage, motor generator terminal and neutral point current,
The signals such as breaker division position, the non-energy storage of breaker spring, and export closing by hand, automatic closing, manual brake separating, divide automatically
The outputs such as lock, trip protection are connect with breaker operator circuit, the motor protection measure and control device mode of connection class of B, C feed pump
Seemingly；
4）By each apparatus GOOSE fiber optic data communication interface networking, the bis- nets of GOOSE of redundancy are constituted.
5）Motor protection measure and control device can receive manual open and close instruction and program-controlled open and close instruction, which can be hard
The mode of connection, communication mode or GOOSE instructions；
6）Feed pump field data acquisition control device receives other two feed pumps motor protection measure and control device
GOOSE trip signals（Fig. 3 left-hand broken lines part）, output feed pump interlocked startup, water supply pump startup allow, feed pump accident is believed
Number, the GOOSE signals such as Feed Pump Trip signal（Fig. 3 dashed middle lines part）；Feed pump motor protection measure and control device receives this
The GOOSE signals that platform feed pump field data acquisition control device is sent out send out protection act jump after electrical quantity protection act
Lock and breaker point, the GOOSE signals for closing position（Dotted portion on the right side of Fig. 3）.
Assuming that B, C feed pump are currently running, A feed pumps are spare, and it is as follows that technique interlocks process：
1）Assuming that phase fault occur in B water supply pump motors, the motor protection measure and control device overcurrent of B feed pumps is protected
Shield acts, then the breaker of tripping B pumps sends out the GOOSE signals of " B pumps trip protection " and " B pumps breaker and jumps position "；
2）A feed pump field data acquisition control devices receive the GOOSE signals of B pump trippings, if A pumps interlock
Input then sends out " A pumps interlocked startup " GOOSE signals, while A feed pump field data acquisition control devices will also be according to access
Hard-wired signals differentiate A pump whether meet entry condition, if it is satisfied, then sending out the GOOSE signals of " permission of A pump startups "；
3）After A feed pump motor protection measure and control devices receive " A pumps interlocked startup " and " permission of A pump startups " signal,
If breaker itself is abnormal without control loop template and accident etc., breaker closing instruction is sent out, A feed pumps are started.
Assuming that A pumps receive at least two in 3 low sensor signals of fluid coupling lubricating oil pressure in operation,
" A pumps trip signal " is then sent out by GOOSE, after A pump motor protection supervisory equipments receive the signal, sends out circuit breaker trip
Order.Assuming that A pumps receive other technique trip conditions in operation, " A pumps trip signal " can be all sent out by GOOSE, by electricity
Motivation protection supervisory equipment tripping circuit breaker.
B, the logical AND A feed pumps of C feed pumps are similar, and it is electronic that B feed pump field data acquisition control devices receive A, C pump
The GOOSE trip signals of machine protection supervisory equipment, the GOOSE signals sent out are connect by B feed pump motor protection measure and control devices
It receives and carries out logical process；C feed pump field data acquisition control devices receive A, B pump motor protection supervisory equipment
GOOSE trip signals, the GOOSE signals sent out are received by C feed pump motor protection measure and control devices and carry out logical process.
In conclusion a kind of motor technique interlock of the present invention and method, it is preferred that emphasis is by motor protection observing and controlling
Device is installed on breaker cabinet, motor field data acquisition control device is installed close to motor, from different motor pair
Information exchange is carried out by GOOSE between the motor protection measure and control device and field data acquisition control device answered, instead of existing
Field is original to be connect the method for realizing interlocking by DCS or PLC by a large amount of cables with field device, reduces use cost, letter
Field connection is changed.
Above example is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every
According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within the scope of the present invention
Within.
Claims (1)
1. a kind of motor technique interlocking method based on motor technique interlock system, the motor technique interlock system packet
Include the motor protection measure and control device of setting corresponding with each breaker in relay bungalow；Further include set corresponding with each motor
The field data acquisition control device set, between each motor protection measure and control device and each field data acquisition control device
Information exchange is realized using IEC61850 standard GOOSE networks；It is characterized in that：Each motor protection measure and control device and each scene
Information exchange is carried out using IEC61850 standard GOOSE networks between information acquisition control device, completes the logic control of motor
System and technique interlock；
The technique interlocking method includes following logic content：
Operating mode one：After service meter electric fault, motor protection measure and control device protection act then will by GOOSE
Circuit breaker position signal issues spare motor field data acquisition control device, if spare motor interlock has been thrown
Enter, and spare motor is no different regular signal, then the field data acquisition control device sends out breaker closing automatically by GOOSE
Instruction starts spare motor；
Operating mode two：After service meter non-electric quantity failure, motor field data acquisition control device is sent out by GOOSE
Trip command, after breaker tripping, motor protection measure and control device is issued circuit breaker position signal by GOOSE spare electronic
Machine field data acquisition control device, if spare motor interlock has been put into, and spare motor is no different regular signal, then
The field data acquisition control device sends out breaker closing instruction by GOOSE automatically, starts spare motor；
Operating mode three：If the motor of operation cannot meet the needs of technique, need to start spare motor, then standby electricity
Motivation field data acquisition control device sends out breaker closing instruction after the differentiation of technique interlock logic, by GOOSE, starts
Spare motor；
Operating mode four：If since the demand of technique needs to stop certain motor run, protected to the motor by GOOSE
Shield measure and control device sends out halt instruction, after spare motor protection supervisory equipment receives the instruction, sends out circuit breaker trip instruction,
Stop the operation of motor；
Operating mode five：If necessary to opening manually, stopping certain motor, is sent instructions to motor by communication modes or hardwire mode and protected
Measure and control device is protected, after which receives instruction, while judging that the motor field data acquisition control fills
Set send open, stop allow GOOSE signals whether meet, if it is satisfied, then sending out combined floodgate or trip signal to breaker.
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| CN105515204B (en) * | 2016-01-29 | 2019-04-09 | 山东鲁能智能技术有限公司 | A kind of intelligent substation Artificial switch, device and method |
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|---|---|---|---|---|
| CN101661842A (en) * | 2008-08-28 | 2010-03-03 | 河南省电力公司 | Integrated mis-logical locking prevention system of digital substation |
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| GB750927A (en) * | 1953-10-30 | 1956-06-20 | Nat Res Dev | Electric remote control device |
| CN1267796C (en) * | 2003-08-14 | 2006-08-02 | 北京四方华能电网控制***有限公司 | Electric automation system of power plant |
| CN201107608Y (en) * | 2007-09-28 | 2008-08-27 | 陈爱民 | Multi-electric motor centralized control equipment |
| CN101458505B (en) * | 2008-12-17 | 2012-01-18 | 国电南京自动化股份有限公司 | Full-station anti-mistaking closedown design method based on IEC61850 standard |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661842A (en) * | 2008-08-28 | 2010-03-03 | 河南省电力公司 | Integrated mis-logical locking prevention system of digital substation |
Non-Patent Citations (1)
| Title |
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| 基于数字化技术的火电厂电气监控管理***方案;侯炜;《电力***自动化》;20121119;第37卷(第3期);第93-97页 * |
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