Virtual monitoring method for transformer substation sequence control
A substation monitoring and sequence control technology, applied in the direction of electrical components, circuit devices, information technology support systems, etc., can solve the problems of increasing system complexity and maintenance difficulty, reducing operation reliability and system stability, etc., to improve equipment availability Maintainability and operational reliability, achieve unmanned duty, reduce labor and operation and maintenance costs
Active Publication Date: 2012-04-11
STATE GRID HUBEI ELECTRIC POWER RES INST +1
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Therefore, the integrated mode of programmed operation and process monitoring of traditional sequence control leads to a large number of repeated configurations of the same anti-misoperation locking logic operation in station monitoring, remote monitoring, five-proof equipment, etc., which increases the complexity of the system and the difficulty of maintenance. Reduced operational reliability and system stability
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[0028] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.
[0029] Sequential control is an automatic operation mode in which intelligent equipment simulates manual operation processes and steps, combined below figure 1 Introduce the content and steps of manually operating the primary equipment group (circuit breaker 1, disconnector 2) in order to remove the load of the normal power supply feeder:
[0030] State before operation: circuit breaker 1 and isolating switch 2 are both in the closing position, confirm that there are two operations;
[0031] The first operation: disconnect the circuit breaker 1;
[0032] The second step is to check before operation (avoid the anti-misoperation inspection of the disconnecting switch with load): check that the status indication of circuit breaker 1 is disconnected, check that there is no voltage on the load side line of ...
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The invention provides a virtual monitoring method for transformer substation sequence control, which comprises the following steps of: 1) performing virtual monitoring on sequence control allowable operation conditions; 2) performing virtual control on sequence control start operation; 3) performing virtual monitoring on operation of sequence control step 1; 4) performing monitoring on the operation result of sequence control step 1; 5) performing virtual monitoring on allowable operation conditions of sequence control step 2; 6) monitoring the operation state and the operation result of thesequence control step 2 according to step 3) and step 4) so as to finish the monitoring on the operation process of the sequence control step 2; 7) monitoring the next sequence control step accordingto step 5) until the operations of all the sequence control steps are finished; and 8) ending virtual control on sequence control. By the method, the sequence control process of a primary equipment group can be effectively monitored in real time through a station control layer (or remote equipment) of a transformer substation, the requirement on operation safety management is met, duplicate configuration of related anti-misoperation locking logic operation in functions, such as in-station monitoring, remote monitoring, prevention in five aspects and the like, is reduced, and the reliability of the sequence control function of the transformer substation is improved.
Description
technical field [0001] The invention relates to the technical field of electric power automation, in particular to a virtual monitoring method for substation sequence control. Background technique [0002] Sequential control (or sequential control) is a programmed automatic operation mode in which intelligent equipment simulates manual operation steps and processes under the effective monitoring of the automation system. That is, substation sequence control simulates the sequence of manual operation and includes all elements involved in operation and equipment safety in the process of manual operation. [0003] The actual application of substation sequence control function includes two aspects of technical realization and operation safety management. That is, the technical realization of the logic configuration, sequence operation, step control and monitoring model of sequence control, etc., reflects the technical capabilities of the automation system and its intelligent eq...
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IPC IPC(8): H02J13/00
CPCY04S10/16Y02E60/00
Inventor 陈宏孙鹏夏勇军戴堂云胡刚喻子易王晋陈卫勇蔡勇陶骞车方毅苏昊
Owner STATE GRID HUBEI ELECTRIC POWER RES INST
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