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A method and device for energy saving and drag reduction of high-speed trains

A technology for high-speed trains and generators, applied in transportation and packaging, locomotives, railway car bodies, etc., can solve problems such as deterioration of ride comfort and reduced operating performance, and achieve improved aerodynamic characteristics, reduced aerodynamic resistance, and improved operational safety. Effect

Inactive Publication Date: 2020-04-24
SOUTHWEST JIAOTONG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the lift is proportional to the square of the speed, when the train is running at high speed, its operability will be reduced and the ride comfort will be deteriorated

Method used

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  • A method and device for energy saving and drag reduction of high-speed trains
  • A method and device for energy saving and drag reduction of high-speed trains
  • A method and device for energy saving and drag reduction of high-speed trains

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with specific examples, which are explanations of the present invention rather than limitations.

[0028] see figure 1 , a high-speed train energy-saving and drag-reducing device, comprising: an excitation power generating device, a plasma generating device, an electrical parameter measuring device, a digital delay generator, and a pressure monitoring system; wherein, the signal generator in the excitation power generating device is connected to a power amplifier , the power amplifier is connected to the step-up transformer; both ends of the step-up transformer are connected to the plasma generator; the plasma generator is connected to the electrical parameter measuring device; the pressure monitoring system is connected to the PC.

[0029] The switching thyristors of the excitation power generation device are all triggered by a digital delay generator; in addition, the digital delay generato...

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Abstract

The invention discloses a high-speed train energy-saving resistance reducing method and device. Air flow is induced to change on a headstock windward side so as to change the layering condition of an air flow boundary layer, and the headstock wind resistance is reduced. By changing input voltage, the speed and size of induced air flow generated by a plasma generation device are controlled, the plasma generation device is adjusted at the same time, the geometric structure and position of an electrode of the plasma generation device are changed, the speed and direction of the generated induced air flow are adjusted, and induced air flow needed for achieving the optimal resistance reduction of a high-speed train can be obtained; and the two ends of the plasma generation device are connected with an electrical parameter measurement device, a power amplifier switch thyristor is triggered by a digital delay generator, and a pressure monitoring system is connected with a PC terminal. The high-speed train energy-saving resistance reducing method and device can effectively reduce pneumatic resistance borne in the driving process of the high-speed train and achieve the purposes of saving energy and improving operation safety.

Description

technical field [0001] The invention belongs to the technical field of electrified railways, and relates to an energy-saving and drag-reducing method and device for high-speed trains. Background technique [0002] High-speed trains meet the requirements of today's social and economic development with their advantages of fast running speed, high passenger capacity, large transportation capacity, high safety and reliability, high punctuality rate, comfort and convenience, low energy consumption, light environmental impact, and good economic benefits. (Train Aerodynamics, China Railway Press, 2007, Tian Hongqi;). The train runs close to the ground, its length-to-diameter ratio is much larger than that of other vehicles, and its air resistance distribution is more complicated than that of cars, trucks or airplanes. The air resistance characteristics of the train are related to the speed increase of the train and the energy saving and environmental protection ability of the trai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61C17/00B61D17/00
CPCB61C17/00B61D17/00
Inventor 高国强吴广宁魏文赋董磊彭开晟张血琴杨雁
Owner SOUTHWEST JIAOTONG UNIV
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