CN103036164A - Locking method with ordered logic buscouple based on service tracing - Google Patents
Locking method with ordered logic buscouple based on service tracing Download PDFInfo
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- CN103036164A CN103036164A CN2012105086601A CN201210508660A CN103036164A CN 103036164 A CN103036164 A CN 103036164A CN 2012105086601 A CN2012105086601 A CN 2012105086601A CN 201210508660 A CN201210508660 A CN 201210508660A CN 103036164 A CN103036164 A CN 103036164A
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Abstract
The invention discloses a locking method with an ordered logic buscouple based on service tracing. Circuit gap insulation switches with locking relationship and a buscouple breaker are located in different gaps. When the insulation switches are operated, a service racing module of the insulation switch traces an operating control command and sends the command to a service tracing module of the buscouple breaker in a form of control command service report. After receiving the report message, the service tracing module of the buscouple breaker changes a predetermined variable value of a locking module to start on or call off an order by analyzing the content of the report message. After the order is achieved successfully, the buscouple breaker can not be operated any more. The locking method with the ordered logic buscouple based on the service tracing can effectively prevent a simultaneous operation of two switches with the locking relationship, locking failure caused by the simultaneous operation is avoided, and disastrous accidents caused by the locking failure are prevented.
Description
Technical field
The present invention relates to a kind of transformer station and stride the blocking method at interval, particularly a kind of based on preengaging logic mother blocking method containing of service tracks.
Background technology
Electric power system normally in service because the conversion of overhaul of the equipments and operational mode, must often carry out the grid switching operation of system.Stride in the interval operation process in transformer station, can the isolating switch of line segregation and mother interval circuit breaker closed or disconnect and depend on whether the latching relation between them is correct.In the electrical network actual mechanical process, may there be the simultaneously operated danger of two switchgears.When two intervals are operated simultaneously by different subjects, locking information will make a mistake, that is: the isolating switch of line segregation is when being operated by man-machine interface, the circuit breaker at mother interval has also been received the operational order that control centre sends, barring condition is all satisfied in the operation at two intervals, can complete operation.But if operating process is carried out simultaneously, the barring condition when the dynamic change of the position of the switch will make the practical operation action is no longer satisfied, causes misoperation to occur, and will cause the electrical network catastrophic failure.The accident that is caused by misoperation accounts for sizable ratio in electric power system, bring very large threat for security of system stable operation.
Summary of the invention
Stride the above-mentioned technical problem that the interval locking exists in order to solve existing transformer station, the invention provides a kind of reliability high contain reservation logic mother blocking method based on service tracks.
The technical scheme that the present invention solves the problems of the technologies described above may further comprise the steps:
1) the selected request command of line segregation Intelligent Human-Machine Interface transmit button, the selected switch A that namely will operate;
2) switch control module of switch A is received the selected request command of switch, this switch control module reply as negative acknowledge the time, operation will be withdrawed from; Replying as just replying of this switch control module, the expression request command passes through;
3) switch control module returns to the Intelligent Human-Machine Interface with positive answer signal, and the Intelligent Human-Machine Interface is to the switch control module transmit operation order of switch A; Simultaneously, the service tracks module of switch A inside is just replied automatic tracing, forms message, sends to the service tracks module that has the bus B inside of latching relation with switch A;
4) switch control module of switch A detects inner execution environment after receiving order, after inner execution environment detects and passes through, detect again lock modules the latching logic that leaves this node in value is provided in real time, the latching logic value is 0 o'clock, and operation is withdrawed from the undo order; The latching logic value is 1 and can operates, just returns and reply; Simultaneously, all control services all will be followed the trail of by the service tracks module of switch A inside;
5) switch control module of switch A just returns and replys, and switch A is carried out closed procedure;
6) will send closed report and order after the switch A closure and stop service report to switch control module and Intelligent Human-Machine Interface, the service tracks module of switch A inside also will be followed the trail of all control services;
7) switch A end Intelligent Human-Machine Interface receives order and stops service report, withdraws from operating process;
8) the service tracks module of switch A sends to the control command information on services that tracks the service tracks module of bus B with the form of report, the service tracks module of bus B sends reservation logical variable value to the lock modules of bus B by the reservation logical algorithm based on the control command parsing;
When the control command information on services that 9) tracks when the service tracks module was just replying of the selected request command of switch, the reservation logical variable value that parses was 0; According to containing the improvement lockout algorithm of preengaging 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) the control command information on services that tracks when the service tracks module be cancellation operation, operation negative acknowledge, command operation time to reply, order the service of termination the time, the reservation logical variable value that parses is 1; According to containing the improvement lockout algorithm of preengaging 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 disengaged.
Technique effect of the present invention is: take realize the grid switching operation safe related function as the blocking method of main purpose be to need the important mechanisms that realizes in the transformer substation construction process, have two the switchgear concurrency operations that the interval blocking method can prevent from having latching relation well of striding of reservation function, avoid the locking mistake that causes because operating simultaneously.Employing service tracks technology makes up strides interval reservation locking framework, all has very important advantage on function realizes and on the configuration feasibility, and the design of each function is compatible with the IEC61850 standard well with realization.The present invention can independently make a response to the change of environment, possesses very strong autonomy; IEC 61850 standards are followed in information model and the communication service adopted fully, and the operation of functional module automatic sensing environment has distributed, loose coupling characteristic, is convenient to multiplexing and reconstruct.
Description of drawings
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 report theory diagram of the present invention and service.
Fig. 5 is that control command service tracks report of the present invention realizes schematic diagram.
Fig. 6 is reservation logical algorithm flow chart of the present invention.
Fig. 7 is the reservation logic blocking module implementation model figure that contains of the present invention.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail.
Referring to Fig. 1 and Fig. 2, operate simultaneously the problem that causes the locking mistake and cause misoperation for two intervals, the method that propose to adopt increases the reservation latching logic make up contain the reservation logical variable stride the interval blocking method.Line segregation isolating switch and bus are in respectively in the different interval, and when isolating switch is operated, the service tracks module of switch inside will be followed the trail of operation control command, and send to bus by the control command service report.Bus by the analytic message content, changes the reservation logical variable value in the lock modules after receiving report message, start/cancel reservation.After preengaging successfully, bus can not be operated, and avoid the generation of locking mistake.
For the line segregation isolating switch 20512 among Fig. 2 and mother interval circuit breaker 2012, carry out following explanation in conjunction with the flow chart of Fig. 3:
1) the selected request command of line segregation Intelligent Human-Machine Interface transmit button, the selected isolating switch 20512 that namely will operate;
When 2) the selected request command of switch was to the switch control module of switch 20512, this switch control module was made request and being replied.Just replying the expression request command and passing through, negative acknowledge represents to ask unsuccessful.When replying as negative acknowledge, operation will be withdrawed from;
3) when replying when just replying, answer signal will return to the Intelligent Human-Machine Interface, and the Intelligent Human-Machine Interface is to the switch control module transmit operation order of switch 20512.Simultaneously, the service tracks module of switch 20512 inside will be followed the trail of this and just be replied.
The effect of service tracks module is that mother interval circuit breaker (for example circuit breaker 2012) can be monitored the control command service of functional arrangement interval isolating switch (for example switch 20512), and the message that monitors 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 the inner announcement of generation sends to report processor under the trigger condition of customization, and report processor generates report and transmission according to the controll block attribute configuration.The content that report sends is the respective attributes in the option field of report-control block, and according to the content that monitors that the client needs monitor, the property value in respective selection territory is set to " TRUE ", and with it transmission.The principle of report as shown in Figure 4.
Fig. 5 is operating as the process of example explanation service tracks to line segregation isolating switch (for example switch 20512) with control command.
(1) the command service parameter that sends of control command will arrange the property parameters of the control command operand of line segregation isolating switch, and the respective attributes value is upgraded its correlation attribute value according to the flow process of state machine in the control command operand.
(2) data attribute of trace data object also will shine upon service parameter corresponding to control command in the service tracks module.Wherein, the data referencing in the common data Attribute class, COS, error code, the attributes such as service origin and service completion time sign are not the values of directly shining upon in the service parameter, but obtain correlation in service process or after the service end.
(3) mapping of data referencing attribute realizes at last in the trace data object.When the control object in control command is replied is quoted service parameter values and is mapped to the data referencing attribute, event monitor in the service tracks report-control block monitors that the data referencing attribute satisfies trigger condition in the trace data object, the message that just will comprise the trace data object attribute values sends to bus, and the choice of content determines according to the report-control block example in the message.
(4) switch control module of switch 20512 detects inner execution environment after receiving order, and whether comprise has other order carrying out, whether locked by some condition, and the pattern of sense switch control module etc. judge whether order can be carried out.The inner execution environment of switch control module then detects lock modules the latching logic that leaves this node in value is provided in real time after detecting and passing through, and judges whether this operational order can carry out next step operation.The latching logic value be 0 o'clock can not operation command, being 1 can operate.Can carry out such as order, just return and reply, otherwise expression does not conform to condition, return negative acknowledge or cancellation operational order.Simultaneously, the service of switch 20512 inside is followed the trail of all control services with tracing module, and generates the service tracks module that message sends to circuit breaker 2012.
(5) when inverse signal when just replying, switch 20512 carries out closed procedure; When inverse signal is negative acknowledge, operating process will withdraw from.
(6) will send closed report and order after switch 20512 closures and stop service report to switch control module and Intelligent Human-Machine Interface.Simultaneously, the service tracks module of switch 20512 inside also will be followed the trail of all control services, and generate the service tracks module that message sends to circuit breaker 2012.
(7) switch 20512 end Intelligent Human-Machine Interfaces receive order and stop service report, withdraw from operating process.
(8) the service tracks module of switch 20512 sends to the control command information on services that tracks the service tracks module of bus 2012 with the form of report, the latter sends reservation logical variable value to the lock modules of circuit breaker 2012 by the reservation logical algorithm based on the control command parsing in the mode of internal signal.
The reservation logical algorithm of resolving based on control command as shown in Figure 6, specific practice is as follows:
When the selected request command of switch was just being replied, controlled device entered standby condition, waits for the arrival of operation requests order, and should send subscription information this moment to the related switch that has with it latching relation.When the selected request command of switch obtained negative acknowledge, controlled device was returned not selected stationary state.
When the operation requests order of sending is just being replied, show that the control operation order carries out.And when obtaining negative acknowledge, expression control operation order is not performed, and state machine returns not selected stationary state.At this moment, should be to sent reservation releasing information, the operation appointment before removing by reservation side.
After the control operation order finally has been performed, can returns confirmation or order the service of termination to show whether operation puts in place.Whether but no matter operate put in place, when receiving this two information, state machine, wait for next operation if all can turn back to not selected stationary state.Be that reserve requests side should be to sent reservation releasing information, the operation appointment before removing by reservation side.No matter when receive the cancellation operational order in whole process, state machine all can return not selected stationary state, is all removed reservation by the side of reservation.
Therefore, in the report message of being received by the service tracks module of reservation side's circuit breaker 2012, when including the selected positive response message of request command of switch, will preengage the logical variable value and be set to 0.And when the negative acknowledge that includes cancellation operation, operation in the message of receiving, command operation time to reply, order the information on services of termination the time, will preengage the logical variable value and be set to 1.
(9) be 0 when preengaging the logical variable value, according to containing the improvement lockout algorithm of preengaging logical variable, the latching logic expression formula of circuit breaker 2012 is
(wherein 2012R is the 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 that parses be 1, according to containing the improvement lockout algorithm of preengaging 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 disengaged.
Wherein contain preengage logical variable the improvement lockout algorithm as shown in Figure 7, specific as follows:
The locking model mainly comprises communication and two modules of locking.Wherein communication module is responsible for the goose message communication between each switch and the circuit breaker, when each intelligent electronic device state of transformer station changes, sends the goose message with high-frequency immediately, upgrades real-time data base.When not changing generation, also send the goose message, but still send the goose message with low fixed frequency, keep real-time data base.The realization of lock modules mainly comprises data splitting, reservation logic and real-time data base.
The CILO logical node receives the positional information of other each switch by communication module, they are stored in the real-time data base, according to the goose message real-time update of receiving.Comprise the location status and the logical value that have all switches of latching relation with 2012 circuit breakers in the real-time data base, calculated the result of combination condition according to the locking rule by these relevant logical values.The final barring condition of switch carries out logic mutually and computing by combination condition with the reservation logic, draws final barring condition value, deposits in the CILO value.This logical value can real-time update be stored in CILO worthwhile in, when any position of the switch that has latching relation changes, might cause that all the latching logic value changes.When operational order arrives switch control module, whether correctly can detect latching relation, if correct, then operate, otherwise the cancellation operation.For example, for mother interval circuit breaker 2012, its original latching logic expression formula is
The latching logic expression formula of circuit breaker 2012 is after adopting booking-mechanism
The service tracks module parses reservation logical variable value substitution formula (2) out of circuit breaker 2012 can be drawn the locking result.
Claims (1)
- One kind based on service tracks contain reservation logic mother blocking method, its step is as follows:1) the selected request command of line segregation Intelligent Human-Machine Interface transmit button, the selected switch A that namely will operate;2) switch control module of switch A is received the selected request command of switch, this switch control module reply as negative acknowledge the time, operation will be withdrawed from; Replying as just replying of this switch control module, the expression request command passes through;3) switch control module returns to the Intelligent Human-Machine Interface with positive answer signal, and the Intelligent Human-Machine Interface is to the switch control module transmit operation order of switch A; Simultaneously, the service tracks module of switch A inside is just replied automatic tracing, forms message, sends to the service tracks module that has the bus B inside of latching relation with switch A;4) switch control module of switch A detects inner execution environment after receiving order, after inner execution environment detects and passes through, detect again lock modules the latching logic that leaves this node in value is provided in real time, the latching logic value is 0 o'clock, and operation is withdrawed from the undo order; The latching logic value is 1 and can operates, just returns and reply; Simultaneously, all control services all will be followed the trail of by the service tracks module of switch A inside;5) switch control module of switch A just returns and replys, and switch A is carried out closed procedure;6) will send closed report and order after the switch A closure and stop service report to switch control module and Intelligent Human-Machine Interface, the service tracks module of switch A inside also will be followed the trail of all control services;7) switch A end Intelligent Human-Machine Interface receives order and stops service report, withdraws from operating process;8) the service tracks module of switch A sends to the control command information on services that tracks the service tracks module of bus B with the form of report, the service tracks module of bus B sends reservation logical variable value to the lock modules of bus B by the reservation logical algorithm based on the control command parsing;When the control command information on services that 9) tracks when the service tracks module was just replying of the selected request command of switch, the reservation logical variable value that parses was 0; According to containing the improvement lockout algorithm of preengaging 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) the control command information on services that tracks when the service tracks module be cancellation operation, operation negative acknowledge, command operation time to reply, order the service of termination the time, the reservation logical variable value that parses is 1; According to containing the improvement lockout algorithm of preengaging 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 disengaged.
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Citations (2)
| 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 |
| US20100238812A1 (en) * | 2009-03-23 | 2010-09-23 | Cisco Technology, Inc. | Operating MPLS label switched paths and MPLS pseudowire in loopback mode |
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Patent Citations (2)
| 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 |
| US20100238812A1 (en) * | 2009-03-23 | 2010-09-23 | Cisco Technology, Inc. | Operating MPLS label switched paths and MPLS pseudowire in loopback mode |
Non-Patent Citations (2)
| Title |
|---|
| GUOJING LI,BIN DUAN,ETC.: "《Engineering of interlocking with reservation function in digital substation operation》", 《INNOVATIVE SMART GRID TECHNOLOGIES - ASIA (ISGT ASIA), 2012 IEEE》 * |
| 段斌等.: "《基于过程总线通信实现数字化变电站的在线闭锁》", 《电网技术》 * |
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