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Energy conversion circuit, device, controller of electric locomotive and electric locomotive

A technology for energy conversion and electric locomotives, which is applied in the field of energy conversion circuits and electric locomotives, and can solve problems such as low capacity density, short life, and poor conversion efficiency

Active Publication Date: 2020-10-20
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide an energy conversion circuit, device, controller and electric locomotive for electric locomotives, so as to solve the problem of low capacity density, poor conversion efficiency, shorter lifespan problem

Method used

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  • Energy conversion circuit, device, controller of electric locomotive and electric locomotive
  • Energy conversion circuit, device, controller of electric locomotive and electric locomotive
  • Energy conversion circuit, device, controller of electric locomotive and electric locomotive

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Embodiment Construction

[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0047] figure 1 It is a schematic structural diagram of an embodiment of an energy conversion circuit for an electric locomotive of the present invention, such as figure 1 As shown, the energy conversion circuit of the electric locomotive in this embodiment includes a battery UB energy storage module 10, a supercapacitor UC energy storage module 11, a DC motor drive module 12 and a DC motor M; wherein the battery UB energy storage module 10 includes a battery UB , a first capacitor...

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Abstract

The invention relates to an energy conversion circuit, an energy conversion device and a controller of an electric locomotive, and the electric locomotive. A storage battery energy storage module is arranged, a super capacitor energy storage module is also arranged, and a voltage lifting unit is arranged in the storage battery energy storage module, so that a super capacitor can assist a direct current motor of the storage battery electric locomotive in supplying power; at the same time, the voltage lifting unit lifts the voltage gains of output voltage, and reduces the ripple amplitude of currents output to the direct current motor; in the capacity recovery process, the surge currents generated by a motor loop are fed back to the super capacitor, so that the fed energy is absorbed more quickly, and a storage battery is prevented from being damaged. By adopting the technical scheme, the power density, the dynamic response speed, the electric energy recovery efficiency and the reliability of an energy conversion system can be improved, so that the electric locomotive has obvious performance improvement in aspects of climbing, accelerating and braking.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to an energy conversion circuit, a device, a controller and an electric locomotive of an electric locomotive. Background technique [0002] With the continuous progress of modern technology, electric locomotives such as new energy transportation tools and mining locomotives continue to emerge and gradually become popular. Among them, the continuous running ability of the electric locomotive is an important criterion for evaluating the performance of the electric locomotive. Therefore, the energy conversion system of the electric locomotive, as a core issue, has attracted much attention in recent years. [0003] The energy conversion system used by most mining electric locomotives includes a voltage source inverter and a bidirectional DC-DC booster unit. Among them, the bidirectional DC-DC booster unit is usually a battery for energy storage, and its advantage is that the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L50/60B60L50/40
CPCB60L50/40B60L50/60Y02T10/70
Inventor 陈万兴唐海洋李赛高杰高雅
Owner GREE ELECTRIC APPLIANCES INC
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