Simulation system and method of turn-adjusting arc suppression coil

Abstract

The invention relates to a simulation system and method of a turn-adjusting type arc suppression coil. It includes an arc suppressing coil gear simulation module that can adjust the inductance value in stages, and adjusts the corresponding arc suppressing coil gear position according to the gear selection signal of the open-in and open-out analog module, and outputs the inductance value of the selected gear to the distribution network simulation system The input and output simulation module is used to receive the simulation of the closed hard contact and the feedback hard contact of the on-load adjustment switch gear contact of the turn-adjusting arc suppression coil, receive the gear control command issued by the on-load switch logic simulation module, and Forward the command to the arc-suppression coil gear position simulation module; the on-load switch logic simulation module is used to simulate the working logic of the on-load regulating switch motor. The returned open-input-open-out analog module issues gear position control commands. The advantages and effects of the present invention: It provides necessary test means for the transient process and analysis when the ground fault occurs, and at the same time can test the capacitive current measurement accuracy and automatic tracking compensation function of the arc suppression coil automatic tracking compensation controller that is about to be put into operation .

Description

technical field [0001] The invention relates to an automatic tracking compensation of an arc-suppression coil of a power distribution network and a transient simulation technology when grounding occurs, in particular to a simulation system and method of a turn-adjusting arc-suppression coil. Background technique [0002] The distribution network is at the end of the power grid structure, directly facing various users, with a large number and a wide distribution range, and is susceptible to various faults caused by the internal factors of the power grid and the external natural environment; among them, the single-phase ground fault occurs The probability is the highest, which can account for about 80% of the total failures. Relevant regulations stipulate that when a single-phase grounding occurs in the 22-66KV power grid, the zero-sequence capacitor current at the grounding point is greater than 10A, the zero-sequence capacitor current of the 10KV power grid is greater than 2...

AI Technical Summary

Problems solved by technology

However, the reduction of ground zero-sequence current in the distribution network makes the correct operation of the ground diagnostic device more challenging

With the large number of automatic tracking arc suppression coils put into operation, the diagnosis technology has fallen into a trough, and the withdrawal rate of diagnostic devices in many areas has reached more than 90%, and they have returned to the original manual diagnosis method of pulling feeder lines one by one. This fully illustrates the grounding diagnosis. The complexity and enormity of the problem

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