Sequence control system and method for switching operation of transformer substation

Abstract

The invention discloses a sequence control system and method for the switching operation of a transformer substation. By taking the operation project software prefabrication, operation task module construction, equipment state automatic judgment and anti-misoperation interlocking intelligent check as the main characteristics, a one-key sequence control function of one-key starting of operation steps and automatic sequence execution of an operation process is realized based on an operation process of task generation, simulation rehearsal and instruction execution. According to the scheme, during the switching process of the transformer substation, by the operation project prefabrication, the invoicing and approval links of the field work tickets are avoided, the management cost is reduced,and the operation tasks are built modularly, and the application range of the sequential control operation mode is expanded. Through the equipment state automatic identification and the anti-error checking, the workload of operators is reduced, and the operation process is simplified. Through the use of two sets of anti-misoperation systems, the anti-misoperation capability is improved; and the operation process is started by one key and is automatically executed, so that the operation efficiency and safety of the disconnecting link of the transformer substation are greatly improved, and the very high application value and popularization significance are achieved.

Description

technical field [0001] The invention relates to the field of automatic operation and maintenance of power systems, and designs a sequence control system and method for substation switching operations. Background technique [0002] In recent years, with the continuous improvement of the safety operation level and service quality requirements of the power grid, the workload of substation operation and inspection has increased significantly, the limited number of personnel has increased and the problem of personnel structure has become extremely prominent, and the security situation has become increasingly severe. It is necessary to improve power grid automation and Only by improving the level of intelligence and improving effective labor productivity can we meet the needs of future development. In the daily operation and maintenance of substations, switching operations occupy most of the work content. At present, substations mainly adopt manual switching mode, which generally...

AI Technical Summary

Problems solved by technology

At present, the substation mainly adopts the manual switch mode, and there are common problems such as complex process, heavy repetitive workload, low operation efficiency, and high safety risk. The use of sequence control is an effective way to solve the above problems

[0003] At present, the sequence control function is still in the pilot stage, and there are common problems such as inconsistent operation methods, narrow operation coverage, incomplete typical functions, and complicated manual intervention links.

At the same time, due to problems such as jamming of the switch and knife switch mechanism, unreliable remote control operation, etc., it is necessary to strengthen the ability to prevent misoperation and check during the sequence control operation, and reduce the risk of using the sequence control function.

Therefore, in some substations that have been configured with sequential control functions, affected by the above problems, most of the corresponding functions have not been enabled, and the advantages of sequential control have not been brought into play.

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