Technique for realizing transforming plant anti mis-closedown function in transforming plant observe and control apparatus

Abstract

The invention relates to a technique for realizing substation anti error-locking function in a substation measurement and control device which includes: the measurement and control device uses double-module structure; the measurement and control device connects with internet, UDP / IP agreement is used between various spacing layer for sharing information; anti error-locking logic is input and compiled through computer, and is download installed to the measurement and control device via internet; signal amount and electric amount of equipment state is used for processing anti error-locking logic judgement, and a hand-operation locking junction is added to each control object respectively. The technique uses spacing layer measurement and control device for realizing anti error-locking function, and realizes all remote operation and local hand-operation anti error-locking logic judgement, and prevents error protection; the technique also can classify message for preventing important message loss; anti error-locking logic using reversed Polish expression occurs less resource, has simple operation and is easy to calculation; remote operation and hand-operation are judged in advance, then locking is opened, thus, safety and correctness of operation can be ensured.

Description

technical field [0001] The invention relates to an anti-misoperation locking technology, more precisely, the invention relates to a technology for realizing the anti-misoperation locking function in a measurement and control device of a substation automation system. The utility model belongs to the technical field of electric power automation. Background technique [0002] Prevention of misoperation is an important content of substation operation management. If misoperation accidents occur, not only the personal injury of the operator may be seriously injured, but also the operating equipment may be seriously damaged, and further power failure accidents may occur. As early as 1990, my country's power system put forward the requirements of "five defenses" for electrical equipment, and stipulated the management of electrical misuse prevention in the form of regulations in Energy Security [1990] No. Principles of operation, design and use. According to the "Regulations", the d...

AI Technical Summary

Problems solved by technology

In substations with a general voltage level of 220kV and above, there are often more than 20 or 30 sets of measurement and control devices in the bay layer. With the increase of devices, the time for information exchange is doubled, which affects the real-time performance of remote control operations.

At the same time, during the control process, the system cannot guarantee the real-time exchange of relevant device information. If the signal changes, the device may misjudge

For example, there may be an interval of 20 to 30 seconds between on-site remote control selection and remote control execution, and the synchronous judgment of circuit breakers in high-voltage substations may last for tens of seconds.

Moreover, the device introduced in this document, like the common measurement and control device, does not perform anti-misoperation locking on the local manual KK handle operation of the substation, and cannot realize the sequence control function, so the anti-misoperation locking is not comprehensive.

The input of its error prevention rules is also relatively complicated

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