Compensation type voltage stabilization auxiliary power supply device and method for partition post

Abstract

The invention discloses compensation type voltage stabilization auxiliary power supply device for a partition post. The device comprises a main transformer connected with a high-voltage power transmission network; the low-voltage side of the main transformer is connected with compensation type voltage stabilization auxiliary power supply equipment; the compensation type voltage stabilization auxiliary power supply equipment comprises a compensation transformer; a secondary winding of the compensation transformer is connected with an output winding of the main transformer in series, and the twoends of a primary winding of the compensation transformer are connected with the output winding of the main transformer in parallel through four electronic switches; the input end of a detection andcontrol module is connected with the output end of the main transformer, and the output end of the detection and control module is connected with the electronic switches to control on-off of the electronic switches. Under the condition of not replacing an existing power transformer of the partition post, a small-power transformer is connected with the output end of the partition post, the voltageof the output end is detected, compensation voltage is connected through the electronic switches, the output voltage is stabilized within a certain range, and the power utilization requirement of theequipment is met.

Description

technical field [0001] The invention belongs to the technical field of auxiliary power supply equipment for railway traction power supply systems, and relates to a compensation-type voltage-stabilizing auxiliary power supply equipment used in partitions, and also relates to a compensation-type voltage-stabilizing method using the equipment. Background technique [0002] At present, my country's railway locomotives use segmented power supply, that is, a substation is installed every 30 to 40 kilometers, and the substation supplies power to both sides. The power supply line is called a power supply arm. In order to ensure the safety and reliability of the power supply, a partition station is set between two adjacent power supply arms from different transformers. When a power supply arm fails, the power supply can be supplied from the non-faulty side to the faulty side through the partition station switching equipment. Ensure that the locomotive under the power supply arm on th...

AI Technical Summary

Problems solved by technology

Therefore, electrical equipment generally designed according to industrial and civil power supply standards cannot adapt to the power supply conditions of railway traction networks: too low voltage may cause equipment shutdown, and too high voltage may cause equipment damage and loss of function

These will cause direct or indirect economic losses, or cause harm to the safety of railway transportation

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