CN103036164B - A kind of based on preengaging logic mother blocking method containing of service tracks - Google Patents
A kind of based on preengaging logic mother blocking method containing of service tracks Download PDFInfo
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- CN103036164B CN103036164B CN201210508660.1A CN201210508660A CN103036164B CN 103036164 B CN103036164 B CN 103036164B CN 201210508660 A CN201210508660 A CN 201210508660A CN 103036164 B CN103036164 B CN 103036164B
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Abstract
The invention discloses a kind of based on preengaging logic mother blocking method containing of service tracks.Line segregation isolating switch and the bus with latching relation are in different interval, when operating isolating switch, the service tracks module of isolating switch will be followed the trail of operation control command, and send to the service tracks module of bus with the form of control command service report.The service tracks module of bus is by analytic message content after receiving report message, and change the reservation logical variable value in lock modules, start or cancel reservation, when preengaging successfully, bus can not be operated.The present invention can prevent two switchgear concurrency operations with latching relation well, avoids the locking mistake caused because operating simultaneously, prevents locking mistake from causing the generation of catastrophic failure.
Description
Technical field
The present invention relates to the blocking method of a kind of transformer station across interval, particularly a kind of based on preengaging logic mother blocking method containing of service tracks.
Background technology
In the normal operation of electric power system, due to the conversion of overhaul of the equipments and operational mode, constantly carry out the grid switching operation of system.In transformer station across in interval operation process, can the isolating switch of line segregation and mother interval circuit breaker close or disconnect and depend on that whether the latching relation between them is correct.In electrical network actual mechanical process, two switchgears may be there are simultaneously by the danger operated.When two intervals are operated by different subjects simultaneously, locking information will make a mistake, that is: the isolating switch of line segregation is while being operated by man-machine interface, the circuit breaker at mother interval also have received the operational order that control centre sends, the operation at two intervals all meets barring condition, can complete operation.But if operating process is carried out simultaneously, the dynamic change of the position of the switch, by no longer satisfied for barring condition when making practical operation action, cause misoperation to occur, will cause electrical network catastrophic failure.The accident caused by misoperation accounts for sizable ratio in electric power system, brings very large threat to the safe and stable operation of system.
Summary of the invention
In order to solve the above-mentioned technical problem that existing transformer station exists across interval locking, the invention provides a kind of reliability high based on service tracks containing reservation logic mother blocking method.
The technical scheme that the present invention solves the problems of the technologies described above comprises the following steps:
1) line segregation Intelligent Human-Machine Interface transmit button selectes request command, the selected switch A that namely will operate;
2) switch control module of switch A is received switch and is selected request command, and when the response of this switch control module is negative acknowledge, operation will be exited; The response of this switch control module, for just to reply, represents that request command passes through;
3) positive answer signal is returned to Intelligent Human-Machine Interface by switch control module, and Intelligent Human-Machine Interface is to the switch control module transmit operation order of switch A; Meanwhile, automatic tracing is just replied by the service tracks module of switch A inside, forms message, sends to the service tracks module of the bus B inside that there is latching relation with switch A;
4) switch control module of switch A upon command, detects inner execution environment, and inner execution environment detects by rear, detect lock modules again and the latching logic value leaving this node in is provided in real time, when latching logic value is 0, undo order, exits operation; Latching logic value is 1 and can operates, and returns and just replys; Meanwhile, all control services are all followed the trail of by the service tracks module of switch A inside;
5) switch control module of switch A returns and just replys, and carries out closed procedure to switch A;
6) closed for transmission report and order are stopped service report to switch control module and Intelligent Human-Machine Interface after closing by switch A, and the service tracks module of switch A inside is also by control services all for tracking;
7) switch A holds Intelligent Human-Machine Interface to receive order and stops service report, exits operating process;
8) the control command information on services tracked is sent to the service tracks module of bus B by the service tracks module of switch A with the form of report, the reservation logical algorithm of service tracks module by resolving based on control command of bus B, sends the lock modules of bus B to by reservation logical variable value;
9) when the control command information on services that service tracks module tracks be switch select the just response of request command time, the reservation logical variable value parsed is 0; According to the improvement lockout algorithm containing reservation logical variable, the lock modules of bus B is done and computing, and value is 0; The operation of bus B is blocked, and bus B is preengage successfully;
10) when the control command information on services that service tracks module tracks be cancellation operation, negative acknowledge, the command operation time of operation response, the order of arriving stop service time, the reservation logical variable value parsed is 1; According to the improvement lockout algorithm containing reservation logical variable, the lock modules of bus B is done and computing, is worth the value for former logical expression; The reservation of bus B is removed.
Technique effect of the present invention is: be the important mechanisms needing in transformer substation construction process to realize to realize blocking method that grid switching operation safe related function is main purpose, there are two switchgear concurrency operations that can prevent from having latching relation across interval blocking method well of reservation function, avoid the locking mistake caused because operating simultaneously.Adopt service tracks technology to build across interval reservation locking framework, on functional realiey and in configuration feasibility, all have very important advantage, the design and implimentation of each function is compatible with IEC61850 standard well.The present invention can independently make a response to the change of environment, possesses very strong autonomy; IEC61850 standard is followed in the information model adopted and communication service completely, and functional module automatic sensing environment runs, and has distributed, loose coupling characteristic, is convenient to multiplexing and reconstruct.
Accompanying drawing explanation
Fig. 1 is general principles figure of the present invention.
Fig. 2 is that two main bodys operate switch figure in two intervals simultaneously.
Fig. 3 is flow chart of the present invention.
Fig. 4 is reporting principles block diagram of the present invention and service.
Fig. 5 is that control command service tracks of the present invention report realizes schematic diagram.
Fig. 6 is reservation logical algorithm flow chart of the present invention.
Fig. 7 is of the present invention containing reservation logic blocking module implementation model figure.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail.
See Fig. 1 and Fig. 2, operate for two intervals simultaneously and cause locking mistake and the problem that causes misoperation, propose to adopt the method increasing reservation latching logic build containing reservation logical variable across interval blocking method.Line segregation isolating switch and bus are in different interval respectively, and when operating isolating switch, the service tracks module of switch internal will be followed the trail of operation control command, and send to bus by control command service report.Bus by analytic message content, changes the reservation logical variable value in lock modules, starts/cancel reservation after receiving report message.When preengaging successfully, bus can not be operated, and avoids the generation of locking mistake.
For the line segregation isolating switch 20512 in Fig. 2 and mother interval circuit breaker 2012, the flow chart of composition graphs 3 illustrates as follows:
1) line segregation Intelligent Human-Machine Interface transmit button selectes request command, the selected isolating switch 20512 that namely will operate;
2), when switch selectes request command to the switch control module of switch 20512, this switch control module makes response to request.Just replying and representing that request command passes through, negative acknowledge represents that request is unsuccessful.When replying as negative acknowledge, operation will be exited;
3) when replying as just replying, answer signal will return to Intelligent Human-Machine Interface, and Intelligent Human-Machine Interface is to the switch control module transmit operation order of switch 20512.Meanwhile, the service tracks module of switch 20512 inside will be followed the trail of this and just replied.
The effect of service tracks module is that mother interval circuit breaker (such as circuit breaker 2012) can be monitored the control command service of functional arrangement interval isolating switch (such as switch 20512), and the message of supervision is sent to the service tracks module of mother interval circuit breaker by the report-control block of inside modules.
The report-control block of service tracks inside modules monitors all data objects of report-control block reference data collection by event monitor, and inner notice of generation sends to report processor under the trigger condition of customization, report processor generates according to controll block attribute configuration and reports and send.The content that report sends is the respective attributes in the option field of report-control block, according to monitoring that client needs the content monitored, is set to " TRUE " by the property value in respective selection territory, and by it transmission.The principle of report as shown in Figure 4.
Fig. 5 is operating as to line segregation isolating switch (such as switch 20512) process that example illustrates service tracks with control command.
(1) property parameters of the control command operand to line segregation isolating switch arranges by the command service parameter that control command sends, and in control command operand, respective attributes value upgrades its correlation attribute value according to the flow process of state machine.
(2) in service tracks module, the data attribute of trace data object also will map service parameter corresponding to control command.Wherein, the data referencing in common data Attribute class, COS, error code, the attributes such as service origin and service completion time mark are not the values in direct mapping services parameter, but in service process or service terminate after obtain correlation.
(3) in trace data object, the mapping of data referencing attribute finally realizes.When control command response in control object quote service parameter values be mapped to data referencing attribute time, event monitor in service tracks report-control block monitors data referencing attribute in trace data object and meets trigger condition, just the message comprising trace data object attribute values is sent to bus, in message, the choice of content determines according to report-control block example.
(4) switch control module of switch 20512 upon command, detects inner execution environment, comprises and whether have other order in execution, and whether by some conditional lockout, the pattern etc. of sense switch control module, judges whether order can perform.The inner execution environment of switch control module detects by rear, then detect lock modules and provide the latching logic value leaving this node in real time, judges whether this operational order can carry out next step operation.Can not operation command when latching logic value is 0, being 1 can operate.As order can perform, return and just reply, otherwise, represent and do not conform to condition, return negative acknowledge or cancel operational order.Meanwhile, tracing module is followed the trail of all control services by the service of switch 20512 inside, and generates the service tracks module that message sends to circuit breaker 2012.
(5) when inverse signal is for just replying, switch 20512 carries out closed procedure; When inverse signal is negative acknowledge, operating process will exit.
(6) closed for transmission report and order are stopped service report to switch control module and Intelligent Human-Machine Interface after closing by switch 20512.Meanwhile, the service tracks module of switch 20512 inside also will follow the trail of all control services, and generates the service tracks module that message sends to circuit breaker 2012.
(7) switch 20512 end Intelligent Human-Machine Interface receives order and stops service report, exits operating process.
(8) the control command information on services tracked is sent to the service tracks module of bus 2012 by the service tracks module of switch 20512 with the form of report, the reservation logical algorithm of the latter by resolving based on control command, sends the lock modules of circuit breaker 2012 in the mode of internal signal by reservation logical variable value.
Based on control command resolve reservation logical algorithm as shown in Figure 6, specific practice is as follows:
When switch select request command just replied time, controlled device enters standby condition, waits for the arrival of operation requests order, now should send subscription information to the related switch with it with latching relation.When switch select request command obtain negative acknowledge time, controlled device returns not selected stationary state.
When the operation requests order sent just is replied, show that control operation order performs.And when obtaining negative acknowledge, representing that control operation order is not performed, state machine returns not selected stationary state.Now, should to being sent reservation releasing information by reservation side, the operation appointment before releasing.
After control operation order has finally been performed, confirmation or order termination service can be returned and shown whether operation puts in place.But no matter operate and whether put in place, when receiving this two information, state machine all can turn back to not selected stationary state, wait for next operation.Namely reserve requests side should to being sent reservation releasing information by reservation side, the operation appointment before releasing.In whole process, no matter when receive cancellation operational order, state machine all can return not selected stationary state, is all removed reservation by reservation side.
Therefore, when in the report message received by the service tracks module of reservation side's circuit breaker 2012, include switch when selecting the positive response message of request command, reservation logical variable value is set to 0.And when the information on services that the response including cancellation operation in the message received, negative acknowledge, the command operation time of operation arrive, order stop, reservation logical variable value is set to 1.
(9) when reservation logical variable value is 0, according to the improvement lockout algorithm containing reservation logical variable, the latching logic expression formula of circuit breaker 2012 is
(wherein 2012R is reservation logic), operation result is 0, and the operation of circuit breaker 2012 is blocked, and circuit breaker 2012 is preengage successfully.
(10) when the reservation logical variable value parsed is 1, according to the improvement lockout algorithm containing reservation logical variable, the lock modules of circuit breaker 2012 is done and computing, is worth the value for former logical expression.The reservation of circuit breaker 2012 is removed.
Wherein containing preengaging the improvement lockout algorithm of logical variable as shown in Figure 7, specific as follows:
Locking model mainly comprises communication and locking two modules.Wherein communication module is responsible for the goose message communication between each switch and circuit breaker, when each intelligent electronic device state of transformer station changes, sends goose message immediately with high-frequency, upgrades real-time data base.When not changing generation, also send goose message, but still send goose message with lower fixed frequency, maintain real-time data base.The realization of lock modules mainly comprises data splitting, reservation logic and real-time data base.
CILO logical node receives the positional information of other each switch by communication module, they is stored in real-time data base, according to the goose message real-time update received.Comprise location status and the logical value of all switches with 2012 circuit breakers with latching relation in real-time data base, calculated the result of combination condition according to locking rule by these relevant logical values.The final barring condition of switch carries out logic phase and computing by combination condition and reservation logic, draws final barring condition value, stored in CILO value.This logical value can real-time update be stored in CILO worthwhile in, when any position of the switch that there is latching relation changes, all likely cause latching logic value to change.When operational order arrives switch control module, latching relation can be detected whether correct, if correctly, then operate, otherwise cancel operation.Such as, for mother interval circuit breaker 2012, its original latching logic expression formula is
（1）；
After adopting booking-mechanism, the latching logic expression formula of circuit breaker 2012 is
(wherein 2012R is reservation logic) (2);
The reservation logical variable value service tracks module of circuit breaker 2012 parsed substitutes into formula (2) can draw locking result.
Claims (1)
1., based on preengaging a logic mother blocking method containing of service tracks, its step is as follows:
1) line segregation Intelligent Human-Machine Interface transmit button selectes request command, the selected switch A that namely will operate;
2) switch control module of switch A is received switch and is selected request command, and when the response of this switch control module is negative acknowledge, operation will be exited; The response of this switch control module, for just to reply, represents that request command passes through;
3) positive answer signal is returned to Intelligent Human-Machine Interface by switch control module, and Intelligent Human-Machine Interface is to the switch control module transmit operation order of switch A; Meanwhile, automatic tracing is just replied by the service tracks module of switch A inside, forms message, sends to the service tracks module of the bus B inside that there is latching relation with switch A;
4) switch control module of switch A upon command, detects inner execution environment, and inner execution environment detects by rear, detect lock modules again and the latching logic value leaving node in is provided in real time, when latching logic value is 0, undo order, exits operation; Latching logic value is 1 operation, returns and just replys; Meanwhile, all control services are all followed the trail of by the service tracks module of switch A inside;
5) switch control module of switch A returns and just replys, and carries out closed procedure to switch A;
6) closed for transmission report and order are stopped service report to switch control module and Intelligent Human-Machine Interface after closing by switch A, and the service tracks module of switch A inside is also by control services all for tracking;
7) switch A holds Intelligent Human-Machine Interface to receive order and stops service report, exits operating process;
8) the control command information on services tracked is sent to the service tracks module of bus B by the service tracks module of switch A with the form of report, the reservation logical algorithm of service tracks module by resolving based on control command of bus B, sends the lock modules of bus B to by reservation logical variable value;
9) when the control command information on services that service tracks module tracks be switch select the just response of request command time, the reservation logical variable value parsed is 0; According to the improvement lockout algorithm containing reservation logical variable, the lock modules of bus B is done and computing, and value is 0; The operation of bus B is blocked, and bus B is preengage successfully;
10) when the control command information on services that service tracks module tracks be cancellation operation, negative acknowledge, the command operation time of operation response, the order of arriving stop service time, the reservation logical variable value parsed is 1; According to the improvement lockout algorithm containing reservation logical variable, the lock modules of bus B is done and computing, is worth the value for former logical expression; The reservation of bus B is removed.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101465564A (en) * | 2009-01-09 | 2009-06-24 | 北京美兰尼尔电子技术有限公司 | In-situ digitalization method and apparatus for transforming plant primary equipment |
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| US8391163B2 (en) * | 2009-03-23 | 2013-03-05 | Cisco Technology, Inc. | Operating MPLS label switched paths and MPLS pseudowire in loopback mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465564A (en) * | 2009-01-09 | 2009-06-24 | 北京美兰尼尔电子技术有限公司 | In-situ digitalization method and apparatus for transforming plant primary equipment |
Non-Patent Citations (2)
| Title |
|---|
| 《Engineering of interlocking with reservation function in digital substation operation》;Guojing Li,Bin Duan,etc.;《Innovative Smart Grid Technologies - Asia (ISGT Asia), 2012 IEEE》;20120524;第4页左栏倒数1-3段、右栏倒数1-4段，第4页图3，第5页左栏第1-4段 * |
| 《基于过程总线通信实现数字化变电站的在线闭锁》;段斌等.;《电网技术》;20091105;第33卷(第19期);第42页右栏倒数第2段和图10 * |
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Granted publication date: 20160323 Termination date: 20211204 |