Electricity energy regulating-ice melting device and method for railway traction network

Abstract

The invention relates to a power regulating-ice melting device for a railway traction network. The device comprises two converter devices at left and right, which are same in structure, wherein direct-current sides of the two converter devices at left and right are connected through a switch; each converter device comprises a multiplied winding transformer and a plurality of H-bridge modules which are same in structure; the transformer consists of a primary winding and a plurality of secondary windings; the primary winding is connected with a single-phase alternating current of a power supply arm of a traction network substation; each secondary winding is connected with an H-bridge module; and direct-current sides of all the H-bridge modules are connected in series. The invention also relates to a power regulating-ice melting method for the railway traction network. According to the invention, an H-bridge direct-current side serial based topological structure is adopted, not only can high-capacity direct-current ice melting requirement be met, but also the electricity energy quality management of an electrified railway also can be satisfied so as to implement ice melting in ice covering, the electricity energy quality management of the traction substation can be carried out when ice is not melt, so that the investment is reduced, and the device utilization ratio is improved.

Description

Technical field [0001] The invention relates to the field of power supply of electric power systems, and in particular to a power adjustment-ice melting device and method for railway traction networks. Background technique [0002] As the global climate changes, large-scale meteorological disasters frequently occur worldwide. In recent years, my country has also experienced frequent ice disasters, power supply interruption caused by icing, and even grid disconnection, etc., resulting in large-scale power outages. Moreover, the repair work is difficult and the cycle is long, which has seriously affected many industries such as transportation and communications. However, there is no line to install traction net deicing (melting) devices in China. To ensure the safe operation of trains in extreme weather conditions such as freezing rain, ice and snow, the development of traction net ice melting devices is of great significance. [0003] The icing of traction nets for electrified rai...

AI Technical Summary

Problems solved by technology

[0008] At present, in the existing technology, the icing problem and the power quality problem of the electrified railway traction network are treated separately by using different equipment and different methods, resulting in waste of equipment and an increase in treatment costs.

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