Energy storage device and method for large-tonnage hybrid power electric locomotive

A hybrid power and energy storage device technology, applied in vehicle energy storage, electric locomotives, circuit devices, etc., can solve problems such as lack of perfect technical solutions, and achieve the effect of improving power and economic performance and improving adaptability

Inactive Publication Date: 2018-04-27
BEIJING UNION UNIVERSITY
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

For the design of energy storage devices for large-tonnage hybrid electric locomotives, there is currently no perfect technical solution

Method used

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  • Energy storage device and method for large-tonnage hybrid power electric locomotive
  • Energy storage device and method for large-tonnage hybrid power electric locomotive

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Embodiment Construction

[0048] At present, there is no perfect technical solution for the design of an energy storage device for a large-tonnage hybrid electric locomotive. In view of this, an embodiment of the present invention proposes an energy storage device and method for a large-tonnage hybrid electric locomotive.

[0049] The energy storage device for large-tonnage hybrid electric locomotives in the embodiment of the present invention mainly includes: traction batteries, protection resistors, support capacitors, inverters, traction motors, filter inductors, high-end capacitors, bidirectional DC / DC converters, energy storage inductors, and supercapacitors; traction batteries and supercapacitors form a hybrid power source system, which can simultaneously take advantage of the advantages of high energy density of batteries and high power density of supercapacitors, effectively reduce the number of on-board batteries used, and improve the adaptation of the electric power system to instantaneous high...

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Abstract

The invention relates to an energy storage device and method for a large-tonnage hybrid power electric locomotive. The energy storage device comprises a traction accumulator (1), a protection resistor(2), a supporting capacitor (3), an inverter (4), a traction motor (5), a filter inductor (6), a high-end capacitor (7), a two-way DC / DC converter (8), an energy storage inductor (9) and a super-capacitor (10). The traction accumulator (1) and the super-capacitor (10) constitute a hybrid power source system, the advantages of high energy density of the accumulator and the high power density of the super-capacitor can be given to play simultaneously, the using quantity of vehicle-mounted accumulators is decreased effectively, the adaptability of an electric power system to the instant large-power load is improved, the energy resource using efficiency of the electric power system is improved, and the maintenance cost of the large-tonnage electric locomotive is reduced effectively. Through the scheme, the important strategic and practical significance in improving the power performance and economic performance of the large-tonnage electric locomotive, expanding the new market with the high additional value and conforming to the energy-saving and emission-reduction national policy is achieved.

Description

technical field [0001] The invention relates to the field of design of energy storage devices for large-tonnage electric locomotives, in particular to performance evaluation technology for locomotive energy storage systems, and in particular to an energy storage device and method for large-tonnage hybrid electric locomotives. Background technique [0002] Large-tonnage power electric locomotives have many applications in mines and underground mines. The traditional energy supply system mainly uses batteries as the energy supply system. However, due to the low power density of the battery, in order to provide the instantaneous high power demand of the electric locomotive under the working conditions of starting, climbing, and accelerating, an additional battery pack is required to meet the power load demand, resulting in the capacity of the on-board battery exceeding that of the electric locomotive. The actual energy demand increases the weight and volume of the battery pack ...

Claims

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Application Information

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IPC IPC(8): B61C3/00B61C3/02B60L11/00H02J7/34
CPCB60L50/40B60L2200/26B60L2210/10B61C3/00B61C3/02H02J7/345Y02T10/70Y02T10/72Y02T30/00
Inventor 高宗余
Owner BEIJING UNION UNIVERSITY
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