KR101885883B1 - Tester of railway vehicle sensor - Google Patents

Abstract

The present invention provides a sensor tester for a railway vehicle.
A sensor tester for a railway vehicle according to the present invention comprises an input current sensor (DCCT), an input voltage sensor (DCPT), a charger voltage sensor (BCPT), a charger current sensor (BCCT), an AC three- A controller for performing a performance test of the phase current sensor ACCT and the monitor device CMD; And a display unit displaying a result of the performance test performed by the control unit.
Using the present invention, the VVVF and GEC electric train voltage / current sensors (DCCT and others 6
Specification of structure and appearance, input voltage fluctuation test, output current stability test, output
Frequency stability test, transient voltage characteristic test, insulation test and other performance tests
.

Description

{TESTER OF RAILWAY VEHICLE SENSOR}

The present invention relates to a tester for checking a voltage / current sensor for a railway vehicle,

For the individual tests of VVVF and GEC electric vehicle voltage / current sensors (DCCT and other 6 types)

This is a technique relating to a testing machine and method used.

The voltage / current sensors (DCCT and 6 other types) of VVVF and GEC electric trains are VVVF and

It has been used as a means of checking GEC trains.

The sensor will be briefly described as an inverter unit

An input current sensor (DCCT) for detecting and outputting current at the front end, a transformer for DC instrument

An input voltage sensor (DCPT) for sensing and outputting a line voltage of 1,500 V DC,

As a transformer for a battery charger, it detects the voltage applied to the battery charging circuit

Charger voltage sensor (BCPT) for output, Battery charger current transformer

A charger current sensor for detecting and outputting an applied current of the battery charging circuit

(BCCT) connected to the 380V power line of the secondary side of the IVT transformer,

AC 3-phase voltage sensor (ACPT), transformer for AC instrument, IVT transformer secondary 380V

AC three phase current sensor (ACCT) connected to the power line to sense and output current, GEC

Chopper Monitor device that detects the current of the main circuit of the train (Current Monitoring

Device CMD that outputs an output voltage of 100: 1 with respect to the input current

All.

The input current sensor may be of the type having a block diagram as shown in FIG.

And the input voltage sensor may be a block diagram as shown in Figure 1B

The branch can be in the form.

On the other hand, a tester for checking whether the sensor is operating normally,

There is no tester for structure or other performance checks for all sensors.

Oh, there is a need to check the structure of the above-mentioned sensors,

I was in the spotlight.

Korean Utility Model Publication No. 20-2013-0002654

Therefore, the present invention is applicable to VVVF and GEC electric vehicle voltage / current sensors (DCCT and other six types)

To test the performance of the system.

A sensor test apparatus for a railway vehicle according to the present invention comprises:

Input current sensor (DCCT), input voltage sensor (DCPT) for railroad cars,

(BCPT), charger current sensor (BCCT), AC three-phase voltage sensor (ACPT), AC three-phase current

A controller for performing a performance test of the sensor (ACCT) and the monitor device (CMD); And

A display unit for displaying a result of the performance test performed by the controller;

And a control unit.

Preferably, the performance test may include structural inspection, appearance inspection, input voltage variation test, output current stability test, output frequency stability test, transient voltage characteristic test, and insulation test.

Advantageously, the control unit comprises: an input module having a filter and a transformer;

A rectification process for converting an AC supplied from an external power source to a DC,

And the DC generated through the rectification process is again supplied to the AC

An execution module for performing an inverse transformation process; And an output module having a filter and a transformer and including a filtering function.

Preferably, the filter of the input module and the output module may be an EMI Filter.

Preferably, the display unit includes: a measurement module for measuring a result of the performance test performed by the control unit; And a status display module for determining a normal operation, a warning operation, and an abnormal operation using the result of the measurement module and displaying the status of the operation.

Preferably, the display unit may further include an alarm module that sounds an alarm when the status display module determines that the status display module is abnormal,

As shown in FIG.

Using the present invention, the VVVF and GEC electric train voltage / current sensors (DCCT and others 6

Specification of structure and appearance, input voltage fluctuation test, output current stability test, output

Frequency stability test, transient voltage characteristic test, insulation test and other performance tests

.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated herein by reference,
Examples of which are set forth in the accompanying drawings,
The present invention can be applied to such drawings
And shall not be construed as limited to the matters described.
1A is a block diagram of a current detection sensor for a railway vehicle.
1B is a block diagram of a voltage detection sensor for a railway vehicle.
2 is a view illustrating a detailed configuration of a sensor tester for a railway vehicle according to an embodiment of the present invention.
FIG. 3 is a flowchart illustrating a process of an embodiment of a sensor tester for a railway vehicle according to the present invention.
Fig.

The operation advantages of the present invention and the present invention, and the implementation of the present invention,

In order to fully understand the purpose of the present invention,

Reference should be made to the accompanying drawings and the description in the drawings.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The present invention will be described in detail. Like reference numerals in the drawings denote like elements

The same member.

2 is a detailed view of a sensor tester for a railway vehicle according to an embodiment of the present invention.

Fig.

A sensor tester for a railway vehicle according to the present invention comprises a VVVF and a GEC

It can be used for individual tests of pressure / current sensors (DCCT and other 6 types).

A sensor tester for a railway vehicle according to an embodiment of the present invention includes a VVVF and GEC sensor

As a method of testing the voltage / current sensor (DCCT and other 6 kinds) of the same car, KS C IES60076-1

The electrical characteristics specified in paragraphs (a) to

And appearance inspection, input voltage fluctuation test, output current stability test, output frequency stable

Voltage test, transient test, insulation test, and other performance tests.

The materials and parts used in the sensor tester for a railway vehicle according to the present invention

K.S Can be a standard part or equivalent, compatible parts, and the frame of the enclosure

It can be manufactured as a cold rolled steel sheet having a thickness of 1.6 mm or more.

The sensor tester 100 for a railway vehicle according to the embodiment of the present invention includes:

(10), and a display unit (20).

The control unit 10 includes an input module 11, an execution module 12, and an output module 13

.

The input module 11 may comprise a filter and a transformer.

The filter of the input module 11 may be used for electromagnetic interference of computers and electronic equipment,

To minimize the generation of electromagnetic waves so as not to be influenced,

It is preferable.

The transformer of the input module 11 is designed and manufactured as a lottery,

The input voltage of the affected part and the charging voltage of the battery are matched with each other,

It is designed as the capacity that is the sum of the rated current of the conversion part.

.

The execution module 12 can perform inverse conversion from rectifying, charging, and ac to direct current

All.

A semiconductor device, a condenser, and the like for rectifying and charging,

It is desirable to design and manufacture the battery so as to be suitable for the input and the battery charging capacity.

DIODE BRIDGE rectification method for rectification, DC power source for reverse conversion

A smoothing circuit may be provided to reduce the tie to a minimum

IGBT module, fuse, heat sink, additional circuit, various parts for assembly

In order to convert the direct current supplied after the rectification into alternating current,

Instantaneous instantaneous frequency control technique applied to IGBT and detection of output waveform

By designing the circuit to be controlled through the waveform sinusoidal compensation circuit,

It is preferable to fabricate the electric power converter with noise.

The output module 13 may include a transformer and a filter.

The transformer of the output module (13) is a high efficiency dry lottery transformer including a reactor function

The insulation class (H class) of the transformer when using the full-

So that the maximum allowable temperature is not exceeded.

In addition, it synthesizes the output after the inverse transform to minimize the harmonic component,

It is preferable to design and manufacture such that the output voltage is high

Especially, considering the insulation resistance and withstand voltage, it is necessary to separate middle current and high current transformer

.

The filter of the output module 13 is composed of a condenser and a reactor,

It can be manufactured with the function of minimizing the generated harmonics.

In addition, to minimize back-flow harmonics generated from the output load,

And functions are preferably built in.

The display unit 20 includes a measurement module 21, a status display module 22, an alarm module 23,

. ≪ / RTI >

The measurement module 21 can measure the result of the test performed by the controller

All. The measurement module 21 can use a recorder (channel 4ch) as shown in FIG. 2,

The test current (mA, A) and voltage (mV, V) can be measured.

For example, ac input / output voltage notation, ac input / output current notation, test current

Display and setting, test time setting and test time display, and characteristic distribution notation

have.

The status display module 22 is configured to check with the L.E.D lamp indicated by the circuit,

It is also desirable to be able to confirm the operating condition of the meter.

The status display module 22 uses the result of the measurement module 21,

The status can be displayed by dividing into warning and abnormal phases.

For example, input normal (green light), notation normal operation (green light) notation, warning

(Yellow), Fault (red): Abnormal operation (AC input error, test

Stop, etc.), DC current / voltage, output normal (green).

If the alarm module 23 determines that the status display module is in an abnormal stage,

You can ring your voice.

The display unit (20) is installed at the top of the front surface for smooth operation of the apparatus

And it is possible to monitor the operation status of the device and to identify each data

.

The ambient temperature of the sensor tester for a railway vehicle according to the present invention is -10 < 0 >

40 ℃, and the ambient humidity is 10% ~ 85%

It is preferable to use it in the inside.

The rated input voltage is AC 3-phase 380V ± 10% 60㎐ ± 5%, the output voltage is 0 to 10V,

0 5V continuous rating, output current 5V / 0 2,000A AC / DC test rating,

5V / 10 500A For general low impedance load test, output waveform is sinusoidal wave, frequency

May be set to 60 Hz, and the output terminal arrangement may be set on the front or side of the tester

It is possible to arrange the terminals differently.

A sensor tester for a railway vehicle according to the present invention is characterized in that current control

, And can use RS-232 or USB communication.

The sensor tester for a railway vehicle according to the present invention can confirm data by communication

The data can be stored via the PC and loaded on demand,

USB & RS-232 can be used.

The sensor tester for a railway vehicle according to the present invention is provided with a surge suppression protection circuit

Which can be equipped with a structure and safety device capable of ensuring worker safety

A protective device may be attached.

The filters of the input module 11 and the output module 13 are inputs for noise.

The noise of the phosphorus prevents damage to the internal components and protects external equipment.

It can be an EMI filter that removes high-frequency noise from the EMI filter.

FIG. 3 is a flowchart illustrating a process of an embodiment of a sensor tester for a railway vehicle according to the present invention.

Fig.

First, the AC current, the DC current, the AC voltage and the DC voltage

And outputs the data through the series of processes shown in FIG.

Can be stored.

The above-described process of FIG. 3 is the same as that of the sensor testing device for a railway car according to the present invention

The present invention is not limited to the above embodiments.

The present invention has been described in detail with reference to the preferred embodiments.

All. However, the present invention is not limited to the above-described embodiments,

Without departing from the spirit of the invention claimed in the claims,

Lt; RTI ID = 0.0 > and / or < / RTI >

And the technical idea of the present invention extends to the scope of the modification.

Claims (6)

And is provided in a framework of an enclosure made of a cold rolled steel sheet having a thickness of 1.6 mm or more,
Input current sensor (DCCT), input voltage sensor (DCPT) for railroad cars,
(BCPT), charger current sensor (BCCT), AC three-phase voltage sensor (ACPT), AC three-phase current
A controller for performing a performance test of the sensor (ACCT) and the monitor device (CMD); And
A display unit for displaying a result of the performance test performed by the controller;
Lt; / RTI >
Further comprising a surge suppression protection circuit for ensuring the safety of the operator,
Wherein,
KS C for VVVF and GEC electric trains Perform performance tests on the test items in accordance with the electrical characteristics criteria specified in IES 60076-1,
The inspection item includes:
Structural inspection, appearance inspection, input voltage variation test, output current stability
A test for output frequency stability, a test for transient voltage characteristic, and an insulation test.
delete The apparatus of claim 1,
An input module having a filter and a transformer;
A rectification process for converting an AC supplied from an external power source to a DC,
And the DC generated through the rectification process is again supplied to the AC
An execution module for performing an inverse transformation process; And
An output module having a filter and a transformer and including a filtering function;
/ RTI >
Wherein the filter of the input module and the output module is an EMI filter.
delete delete delete

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