Vehicle-mounted energy storing device and method for electric locomotive and electric vehicle set

Abstract

The invention discloses a vehicle-mounted energy storing device and method for an electric locomotive and an electric vehicle set. The vehicle-mounted energy storing device and method are used for achieving the purpose of avoiding traction force losses and speed losses when the electric locomotive and the electric vehicle set pass split phases. The vehicle-mounted energy storing device comprises an energy storing module connected to a direct current loop of a traction converter in parallel, and a control module connected with the energy storing module. The energy storing module is used for receiving energy releasing control signals of the control module, working in an energy releasing working state and providing released energy to the traction converter during the energy releasing working state and is used for receiving energy storing control signals of the control module, working in an energy storing working state and storing energy obtained from the direct current loop during the energy storing working state. The control module is used for sending the energy releasing control signals to the energy storing module when electric locomotive and / or the electric vehicle set are / is judged to be in a split phase passing state and used for sending the energy storing control signals to the energy storing module when the electric locomotive and / or the electric vehicle set are / is judged to brake and / or the voltage of the direct current loop is excessively high..

Description

technical field [0001] The invention relates to the field of electric locomotives and electric trains, in particular to a vehicle-mounted energy storage device and method for electric locomotives and electric trains. Background technique [0002] At present, the world's energy is becoming increasingly tense, and energy conservation and consumption reduction have become a worldwide research topic, and energy recovery and reuse is an effective means of energy conservation and consumption reduction. With the development of high-speed and heavy-duty electrified railways in my country, railways, as a key energy-consuming industry, have great potential in energy recovery and reuse. [0003] At present, the technical schemes commonly used to recover and reuse the energy generated by the braking of electric locomotives and EMUs are divided into two types: energy-consuming type and energy-feeding type. The energy-consuming scheme adopts the chopper and the braking resistor to cooper...

AI Technical Summary

Problems solved by technology

[0005] However, none of the existing energy recovery and reuse schemes can solve the problems of traction force and speed loss when electric locomotives and EMUs are over-phased.

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