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Self-compensating longitudinal protection alignment synchronous controller based on backup channel

A synchronous controller and backup channel technology, applied in general control systems, clocks driven by synchronous motors, synchronization, etc., can solve the problem of difficulty in achieving accurate synchronization of protection devices on both sides, saving startup time, shortening swap time, The effect of reliable and safe operation

Active Publication Date: 2018-03-06
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above description, the problem existing in the prior art is that it is difficult to achieve accurate synchronization of the protection devices on both sides

Method used

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  • Self-compensating longitudinal protection alignment synchronous controller based on backup channel
  • Self-compensating longitudinal protection alignment synchronous controller based on backup channel

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Embodiment Construction

[0032] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0033] like figure 1 As shown, the mobile communication-based self-compensating longitudinal protection and adjustment synchronization controller in this embodiment includes a box body 1, a power plug-in 2, a control plug-in 3, a CPU plug-in 4, a man-machine plug-in 5, and a communication plug-in 6.

[0034] Casing 1 is made up of components such as lower plate 7, upper plate 8, back plate 9 and left and right plates. There are the first track 10, the second track 11, the third track 12, the fourth track 13, and the fifth track 14 which play a role in fixing the plug-in in the lower plate 7; The seventh track 16, the eighth track 17, the ninth track 18, and the tenth track 19; there are circuits...

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Abstract

The invention relates to a self-compensation pilot protection exchange synchronous controller based on a standby channel. The device employs a pilot protection standby channel as a communication means, time synchronization is achieved through practical time-delay of an actual measurement communication channel, accurate compensation is employed, only self clocks of protection testers at two sides are depended on, consistency of the clocks of the protection testers at two sides is not required, and absolute time or external clocks are not relied on. The technical problem is solved fundamentally that time synchronization at two sides is difficult when line pilot protection exchange is carried out. Protection exchange can be achieved before a circuit is put into operation, each experiment project can be completed and full experimental verification of synchronization performances of protection devices at two sides of a circuit is carried out. The situation the circuit is put into operation reliably and safely is ensured, circuit protection exchange time is shortened, and circuit starting time is saved. Thus the circuit can be put into operation early and economic benefits can be generated early. The provided synchronous controller can be widely used in pilot protection of a high voltage transmission line.

Description

technical field [0001] The present invention relates to a device for synchronous control of self-compensating longitudinal protection reversing based on a backup channel, in particular to a device for reversing synchronous control of self-compensating longitudinal protection based on a backup channel used during the reversing of high-voltage line longitudinal protection. Background technique [0002] Before the longitudinal protection of high-voltage transmission lines (longitudinal differential, distance, zero sequence, etc.) is put into operation, the protection devices on both sides must be connected to the actual communication channel for exchange. The protective device on this side, the protective device on the opposite side, and the communication channel are verified to be compatible with each other after being swapped, and the action logic of the protective device is verified to be correct after swapping, so that the longitudinal protection can be officially put into o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08G05B19/042G04G7/00
Inventor 汪文全白瑞李瑞张悦张群英马振国宋述勇郝伟王婷郭春兰张晓民
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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