CN110376944B - Sequence control abnormal interrupt processing method - Google Patents
Sequence control abnormal interrupt processing method Download PDFInfo
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- CN110376944B CN110376944B CN201910620951.1A CN201910620951A CN110376944B CN 110376944 B CN110376944 B CN 110376944B CN 201910620951 A CN201910620951 A CN 201910620951A CN 110376944 B CN110376944 B CN 110376944B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The invention relates to a method for processing sequence control abnormal interruption, which takes safety and rapidness as starting points by deeply planning and analyzing the service logic of a sequence control operation ticket and provides a method for continuously executing sequence control operation by using an original sequence control operation ticket after the abnormal interruption processing on the basis of ensuring the safety so as to improve the execution efficiency of the sequence control and the completion rate of the sequence control.
Description
Technical Field
The invention relates to the field of automatic control of power systems, in particular to a sequential control abnormal interrupt processing method.
Background
The sequence control function is also called programmed operation, and according to the predefined operation logic and five-prevention locking rule, a series of operations of the circuit breaker and the disconnecting switch are automatically completed according to the rule, and finally the process of the system operation state is changed, so that the automatic conversion of the electrical equipment from various states such as operation, hot standby, cold standby and the like is realized.
At present, when abnormal interruption occurs to multi-interval sequential control operation (such as a main transformer, a bus and the like), after a monitor reports a dispatcher, the dispatcher commands to remotely control or operate on the spot again according to the equipment state, and an operator needs to draft tickets, check tickets and operate again, so that the operation efficiency is seriously influenced. In order to solve the problems, the invention provides a sequential control abnormal interrupt processing method, which is used for continuing sequential control on the original sequential control operation order.
Disclosure of Invention
Technical problem to be solved
In order to solve the above problems in the prior art, the present invention provides a sequential control abort handling method.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
designing a sequence control abnormal interruption processing method, in the sequence control execution process, after the execution of each operation order is finished, judging whether the execution of the operation order has abnormal interruption, if not, then executing the next operation order; if abnormal interruption occurs, executing interruption re-control, if the operation command is executed again, continuing to execute the next operation command, if the operation command is not executed again, judging that the operated equipment is abnormal, and stopping the sequential control operation first, then maintaining the equipment and confirming that the equipment is not abnormal, and then executing interruption re-control. In the process of executing interruption relay control, whether the operation order of abnormal interruption is skipped or not is judged, if so, the sequence control rehearsal is carried out from the operation order next to the operation order of abnormal interruption, and then the sequence control is continuously executed from the operation order next to the operation order of abnormal interruption, otherwise, the sequence control rehearsal is carried out from the operation order of abnormal interruption, and then the sequence control is continuously executed from the operation order of abnormal interruption. In the process of sequence control preview, an original sequence control operation ticket of which the execution is abnormally terminated is used, an unfinished operation command is simulated and executed under a defense section, whether the execution section meets the actual execution requirement is verified, if the sequence control preview is finished, the sequence control is continuously executed, and if abnormal items exist in the sequence control preview, the abnormal items are firstly eliminated and determined, and then the sequence control preview is executed again.
The method specifically comprises the following steps:
step 1): sequentially controlling execution, namely judging whether the execution of the ith operation order is abnormally interrupted or not, if the execution of the ith operation order is abnormally interrupted, executing interruption and re-controlling, and jumping to the step 2); if no abnormal interruption occurs, then executing the (i + 1) th operation order;
step 2): if the sequence control is executed again and the ith operation order is finished, then executing the (i + 1) th operation order; if the sequence control is executed again but the ith operation order is not finished, judging that the operated equipment is abnormal, stopping the sequence control operation, and jumping to the step 3 after the equipment is maintained and confirmed to be abnormal);
step 3): executing interrupt relay control, namely judging whether the ith operation command of the abnormal interrupt is finished or not, if so, skipping the ith operation command, starting to execute sequential control rehearsal from the (i + 1) th operation command, and then executing the (i + 1) th operation command; if not, the sequence control preview is executed from the ith operation order, and the ith operation order is continuously executed;
step 4): and finishing the sequential control of all the operation orders according to the steps 1) to 3).
The invention has the following characteristics:
(1) interrupt override
In the process of executing the sequence control, if a certain operation order is abnormally interrupted, the system provides a function of controlling once again so as to ensure that after the abnormal interruption once, the system can control once again after confirming the state and the signal condition of the relevant equipment, thereby improving the success rate of the sequence control.
(2) Interrupt relay control
In the sequence control execution process, if a certain operation order has abnormal interruption, the function of controlling once again through interruption cannot be normally executed, and after the sequence control is abnormally terminated, the interruption relay control function is used for continuing the function of sequence control on the original sequence control operation order.
The initial state judgment is an important function for ensuring the safe and smooth execution of the sequence control at the initial stage of the sequence control, and the sequence control can be executed only when the initial state of the controlled equipment is consistent with the initial state required by the operation order. The interruption relay control is to execute the sequence control operation again on the basis that a part of the sequence control operation ticket is already executed, and at the moment, the initial state judgment is not feasible. In order to ensure the safety and reliability of the sequence control process, before the operation of 'interrupting and controlling again' is executed, the sequence control preview of the unexecuted operation order needs to be carried out under a five-prevention section, and each controlled device can be ensured to pass through the service prevention check logic. Interrupting the relay control function may solve the above problem.
And in the process of interrupting relay control, directly skipping the operated operation order without operating.
(III) advantageous effects
The invention has the beneficial effects that: the invention provides a method for continuously executing sequential control operation by using an original sequential control operation ticket after abnormal interrupt processing by deeply planning and analyzing the sequential control operation ticket business logic, taking safety and rapidness as starting points and ensuring the safety so as to improve the sequential control execution efficiency and the sequential control completion rate.
Drawings
FIG. 1 is a flow chart illustrating a method for sequentially controlling abort processing;
FIG. 2 is a diagram illustrating execution of interrupt re-control after an operation command is abnormally interrupted according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating an embodiment of determining whether an abort command is completed;
FIG. 4 is a diagram illustrating execution of interrupt relay control after completion of an abort command according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating an example of performing interrupt relay control when an abort operation command is not completed according to an embodiment of the present invention.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
The invention provides a method for processing sequence control abnormal interruption, in the process of executing sequence control, after the execution of each operation order is finished, judging whether the execution of the operation order has abnormal interruption, if not, executing the next operation order; if abnormal interruption occurs, executing interruption re-control, if the operation order is executed again, continuing to execute the next operation order, if the operation order is not executed again, judging that the operated equipment is abnormal, and stopping the sequential control operation, then maintaining the equipment and confirming that the equipment is not abnormal, and then executing interruption re-control. In the process of executing interruption relay control, whether the operation order of abnormal interruption is skipped or not is judged, if so, the sequence control rehearsal is carried out from the operation order next to the operation order of abnormal interruption, and then the sequence control is continuously executed from the operation order next to the operation order of abnormal interruption, otherwise, the sequence control rehearsal is carried out from the operation order of abnormal interruption, and then the sequence control is continuously executed from the operation order of abnormal interruption. In the process of sequence control preview, an original sequence control operation ticket of which the execution is abnormally terminated is used, an unfinished operation command is simulated and executed under a defense section, whether the execution section meets the actual execution requirement is verified, if the sequence control preview is finished, the sequence control is continuously executed, and if abnormal items exist in the sequence control preview, the abnormal items are firstly eliminated and determined, and then the sequence control preview is executed again. And realizing a sequence control preview function, namely using a D5000 platform integrated service prevention function, wherein the section of the D5000 platform integrated service prevention function is an integrated service prevention section which needs to be synchronized with an SCADA real-time system before preview.
As shown in fig. 1, the method specifically includes the following steps:
step 1): sequentially controlling execution, namely judging whether the execution of the ith operation order is abnormally interrupted or not, if the execution of the ith operation order is abnormally interrupted, executing interruption and re-controlling, and jumping to the step 2); if no abnormal interruption occurs, then executing the (i + 1) th operation order;
step 2): if the sequence control is executed again and the ith operation order is finished, then executing the (i + 1) th operation order; if the sequence control is executed again but the ith operation order is not finished, judging that the operated equipment is abnormal, stopping the sequence control operation, and jumping to the step 3 after the equipment is maintained and confirmed to be abnormal);
step 3): executing interrupt relay control, namely judging whether the ith operation command of the abnormal interrupt is finished or not, if so, skipping the ith operation command, starting to execute sequential control rehearsal from the (i + 1) th operation command, and then executing the (i + 1) th operation command; if not, the sequence control preview is executed from the ith operation order, and the ith operation order is continuously executed;
step 4): and finishing the sequential control of all the operation orders according to the steps 1) to 3).
The interrupt relay control may be performed a plurality of times for the same sequential control operation, that is, step 3) may be performed a plurality of times.
The operation order executed by the sequence control is generated by an intelligent ticketing function of the SCADA advanced application function, namely, the operation order of the sequence control is the execution basis of the steps 1) to 4).
The realization of interruption re-control and interruption relay control depends on a basic platform of the intelligent power grid dispatching control system. And the operation command is interacted between the regulation and control master station and the transformer substation monitoring system through the master station data acquisition and exchange server and the transformer substation communication gateway machine. The function acquires remote signaling values and remote measuring values of the operating equipment according to the data acquisition function of the master station, and acquires an operating command execution result by combining information such as an alarm provided by the SCADA service as a judgment basis. The interrupt re-control function determines whether the system needs to start the interrupt re-control function according to the execution result of the operation order and the type information of the operation order. And after the interruption and re-control function is started, re-executing the execution abnormal operation command, wherein the specific execution content is according to the type of the operation command.
After the sequence control is finished, no matter the execution is successful or the execution is abnormal, the sequence control function can carry out backfill storage on the execution result of each operation order. And the interrupt relay control function analyzes and identifies which operation order is completed according to the backfill information, and sequentially controls which abnormal interrupt is received. And according to the backfilling information of the operation order, interrupting relay control to classify and identify the operation order, and executing different operations on different execution results. And the completed operation order is not executed any more, user selection is obtained for the operation order with abnormal execution in a man-machine interaction mode, and whether the abnormal operation order needs to be skipped or not is determined according to the user selection.
The implementation of the invention takes the execution of a sequence control operation order of '500 kV water line route running sequence to be cold standby' as an example, and the operation order corresponds to the following specific operation orders:
1. patrol and examine 500kV water Pu line 5001/5002 route and move cold reserve in advance accuse blocking signal nothing unusual
2. 500kV water three-line/water Pu line 5002 switch
3. Checking that 500kV water three-line/water 5002 switch is disconnected and current remote-measuring values are zero
4. Patrol and examine 500kV water Pu line 5001/5002 route and move cold reserve in advance accuse blocking signal nothing unusual
5. 500kV Pu line 5001 switch breaks
.......
(1) Interrupt override
When the second step of the operation command of disconnecting the 500kV water three-wire/water line switch is executed, an abnormality occurs, and the operation command is executed again by clicking the 'interrupt and re-control' option, as shown in fig. 2.
If the operation order can not be normally executed and completed through the interruption and re-control option, the operated equipment is considered to have an abnormal condition, the sequence control operation needs to be terminated, and after the equipment condition is confirmed, the sequence control operation is continuously executed by clicking the interruption and re-control option.
(2) Interrupt relay control
After the abnormal interruption of the sequence control execution process, when the sequence control can be continued through local processing completion or confirmation, the original sequence control operation ticket is used for executing the interruption relay control. If the second item has been processed by means of non-sequential control, as shown in fig. 3, clicking the "yes" button will skip the abnormal item, starting from the item next to the abnormal item, as shown in fig. 4. If the second item is not processed, after clicking the "NO" button, the "interrupt relay control" function will start from the abnormal item to execute, as shown in FIG. 5.
While the present invention has been described with reference to the particular embodiments illustrated in the drawings, which are meant to be illustrative only and not limiting, it will be apparent to those of ordinary skill in the art in light of the teachings of the present invention that numerous modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A method for sequentially controlling an abort process, comprising: in the process of executing the sequential control, after the execution of each operation order is finished, judging whether the execution of the operation order has abnormal interruption or not, and if the execution of the operation order does not have the abnormal interruption, then executing the next operation order; if abnormal interruption occurs, executing interruption re-control, if the operation command is executed again, continuing to execute the next operation command, if the operation command is not executed again, judging that the operated equipment is abnormal, stopping the sequential control operation, then maintaining the equipment and confirming that the equipment is not abnormal, and then executing interruption re-control;
in the process of executing interruption relay control, whether an abnormally interrupted operation order is skipped or not is judged, if yes, sequence control rehearsal is carried out from the next operation order of the abnormally interrupted operation order, and then sequence control is continuously executed from the next operation order of the abnormally interrupted operation order, otherwise, sequence control rehearsal is carried out from the abnormally interrupted operation order, and then sequence control is continuously executed from the abnormally interrupted operation order;
in the process of sequence control preview, an original sequence control operation ticket of which the execution is abnormally terminated is used, an unfinished operation command is simulated and executed under a defense section, whether the execution section meets the actual execution requirement is verified, if the sequence control preview is finished, the sequence control is continuously executed, and if abnormal items exist in the sequence control preview, the abnormal items are firstly eliminated and determined, and then the sequence control preview is executed again.
2. A sequential control abort handling method as claimed in claim 1, wherein: the method specifically comprises the following steps:
step 1): sequentially controlling execution, namely judging whether the execution of the ith operation order is abnormally interrupted or not, if the execution of the ith operation order is abnormally interrupted, executing interruption and re-controlling, and jumping to the step 2); if no abnormal interruption occurs, then executing the (i + 1) th operation order;
step 2): if the sequence control is executed again and the ith operation order is finished, then executing the (i + 1) th operation order; if the sequence control is executed again but the ith operation order is not finished, judging that the operated equipment is abnormal, stopping the sequence control operation, and jumping to the step 3 after the equipment is maintained and confirmed to be abnormal);
step 3): executing interrupt relay control, namely judging whether the ith operation command of the abnormal interrupt is finished or not, if so, skipping the ith operation command, and then executing the (i + 1) th operation command; if not, continuing to execute the ith operation order;
and step 4): and finishing the sequential control of all the operation orders according to the steps 1) to 3).
3. A sequential control abort handling method as claimed in claim 2, wherein: in the step 3), before the i +1 st operation order or the ith operation order is executed, a sequence control rehearsal is executed: using an original sequence control operation order of abnormal termination, simulating and executing unfinished operation orders under a defense section, checking whether the execution section meets the actual execution requirement, and if the sequence control preview is finished, executing the (i + 1) th operation order or the ith operation order; if the abnormal item exists in the sequence control preview, the abnormal item is eliminated and determined, and then the sequence control preview is executed again.
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