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EMU train energy consumption measuring system and method

A technology of energy consumption measurement and EMU, which is applied in the direction of measurement device, measurement of electrical variables, measurement of electric power, etc. question

Pending Publication Date: 2019-07-19
NINGBO CRRC TIMES TRANSDUCER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no accurate measurement method for the actual energy consumption of EMU trains. Although there is an energy consumption measurement algorithm for urban rail transit, it is measured for the active power consumption of the DC power supply system of urban rail transit, and cannot be used for EMUs. The reactive power consumption and apparent energy consumption of the train AC power supply system and the power quality of the traction power supply are measured, and it is also unable to meet the needs of multi-channel input of EMU trains
[0003] And the harmonic pollution in the power grid of EMU trains is becoming more and more serious

Method used

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  • EMU train energy consumption measuring system and method
  • EMU train energy consumption measuring system and method
  • EMU train energy consumption measuring system and method

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Effect test

Embodiment 1

[0064] This embodiment provides an EMU train energy consumption metering system, such as Figure 1 to Figure 3 As shown, the system includes:

[0065] Such as figure 1 As shown, the traction system included in the EMU train includes the following components: power supply network, pantograph, traction transformer, auxiliary power supply system and traction motor. In order to realize the measurement and harmonic analysis of various energy consumption of the EMU train, each Type energy consumption includes active power consumption and reactive power consumption of traction input, active power consumption of auxiliary power supply system, etc. This embodiment provides an energy consumption measurement system for EMU trains. The energy consumption measurement system for EMU trains includes voltage transformers, Current transformers, voltage sensors, current sensors and energy metering modules;

[0066] The voltage transformer is installed on the high-voltage side of the traction ...

Embodiment 2

[0174] This embodiment provides a method for energy consumption measurement of EMU trains, such as Figure 4 As shown, the method includes the steps of:

[0175] S1: Obtain the first voltage value of the alternating current obtained by the traction transformer from the power supply network through the voltage transformer, and send the measured first voltage value to the energy metering module;

[0176] S2: Obtain the first current value of the alternating current obtained by the traction transformer from the power supply network through the current transformer, and send the measured first current value to the energy metering module;

[0177] S3: Measure the second current value of the direct current output from the traction transformer to the auxiliary power supply system through the current sensor, and send the measured second voltage value to the energy metering module;

[0178] S4: Measure the second voltage value of the direct current output from the traction transformer ...

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Abstract

The invention provides an EMU train energy consumption measuring system, and relates to the technical field of energy consumption measurement. The EMU train energy consumption measuring system is usedfor solving the problems that in the prior art various energy consumption measurements and harmonic wave analysis of a multi-point acquisition EMU train cannot be met, wherein the various energy consumptions comprises traction-inputted active energy consumption and reactive energy consumption and active energy consumption of an auxiliary power supply system. The EMU train energy consumption measuring system comprises a voltage transformer, a current transformer, a voltage sensor, a current sensor, and an energy measuring module; the voltage transformer and the current transformer are used formeasuring a first voltage value and a first current value of an alternating current obtained from a power supply network by a traction transformer, the current sensor and the voltage sensor are usedfor measuring a second voltage value and a second current value of a direct current of the auxiliary power supply system outputted from the traction transformer; the energy measuring module is used for combining a preset frequency spectrum analysis algorithm to obtain a traction-inputted preset energy consumption. According to the EMU train energy consumption measuring system, various energy consumptions and harmonic wave components of a train can be obtained during running, and basic data are provided for energy consumption and energy conservation management of the EMU train.

Description

technical field [0001] The invention relates to the technical field of energy consumption measurement, in particular to a system and a method for energy consumption measurement of multiple trains. Background technique [0002] With the rapid development of EMU trains, the total energy consumption increases accordingly. However, at present, there is no accurate measurement method for the actual energy consumption of EMU trains. Although there is an energy consumption measurement algorithm for urban rail transit, it is measured for the active power consumption of the DC power supply system of urban rail transit, and cannot be used for EMUs. The reactive power consumption and apparent energy consumption of the train AC power supply system and the power quality of the traction power supply are measured, and it cannot meet the multi-channel input requirements of the EMU train. [0003] And the harmonic pollution in the EMU train grid is becoming more and more serious. Harmonic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/06G01R21/133G01R23/16
CPCG01R21/06G01R21/1331G01R23/16
Inventor 杨玉钊郑良广赵爽周峰包演生
Owner NINGBO CRRC TIMES TRANSDUCER TECH CO LTD
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