Engine-network resonance ground comprehensive treatment system

Abstract

The invention discloses an engine-network resonance ground comprehensive treatment system which comprises a high-voltage active power filter, a high-pass filter and an engine-network resonance ground control unit. The high-voltage active power filter is connected on a traction power supply busbar through a multi-level boosting transformer. Harmonic waves below 12 times are filtered by the high-voltage active power filter. Meanwhile idle work dynamic compensation is achieved. The high-pass filter is directly hung on the traction power supply busbar. The traction power supply busbar is used for filtering the harmonic waves below 13 times. The engine-network resonance ground control unit is connected with the high-voltage active power filter and the high-pass filter. The high-voltage active power filter and the high-pass filter are respectively in dynamic and actual-time control by the engine-network resonance ground control unit. The engine-network resonance ground comprehensive treatment system can be well suitable for the current situation that cross-straight type electric locomotives and cross-straight-cross electric locomotives all kinds of locomotive types mixed running are existed generally in electrified railway in China, capable of achieving system function centralization, flexible in installing manner. Meanwhile the engine-network resonance ground comprehensive treatment system has the advantages of being high in reliability, strong in generality and low in improvement cost.

Description

technical field [0001] The invention relates to an electric energy treatment device, in particular to a vehicle network resonance ground comprehensive treatment system applied in the field of rail transit electrification. Background technique [0002] In recent years, my country's electrified railway construction has entered a stage of rapid development, and the new high-power AC-DC-AC electric locomotive has gradually become the main model of my country's electrified railway. However, there are still a large number of traditional AC-DC electric locomotives on the existing lines, which has led to the current situation of mixed operation of various types of electrified railways in my country, especially in the marshalling stations and hub stations of the Railway Bureau. Therefore, a good matching between the traction power supply network and the electric locomotive system is the key factor for the safe, reliable and efficient operation of the train. [0003] Traditional AC / D...

AI Technical Summary

Problems solved by technology

This patent uses transformers to change the resonance point of the system, and uses contactors to realize switching of filter branches, but it can only filter out fixed sub-system harmonics, and it is easy to cause system overcompensation

[0006] Therefore, a new ground comprehensive management system for vehicle-network resonance is proposed, which is suitable for the current situation of mixed running of AC-DC and AC-DC-AC electric locomotives in my country's electrified railways, and solves the common problems of DC electric locomotives caused by vehicle-network resonance. The technical defect of RC circuit burnout, the realization of the centralized management system function has become a technical problem to be solved urgently

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