CN208283489U - A kind of offline testing device of subway train subordinate inverter module - Google Patents
A kind of offline testing device of subway train subordinate inverter module Download PDFInfo
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- CN208283489U CN208283489U CN201820996389.3U CN201820996389U CN208283489U CN 208283489 U CN208283489 U CN 208283489U CN 201820996389 U CN201820996389 U CN 201820996389U CN 208283489 U CN208283489 U CN 208283489U
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- subordinate inverter
- inverter module
- inductance
- subway train
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- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000003068 static effect Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 16
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
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- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
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Abstract
The utility model relates to a kind of offline testing devices of subway train subordinate inverter module, which includes: power-supply system: connecting with 400V power frequency three-phase alternating-current supply, to provide the output voltage of 900V/1800V to subordinate inverter module to be tested；Control system: including the upper PC machine being in communication with each other and slave computer, the slave computer is connect with subordinate inverter module and load system respectively；Load system: connecting with subordinate inverter module to be tested, to realize continuous single-phase inversion underloading detection and static checking of great current by loop switch.Compared with prior art, the utility model has many advantages, such as that offline inspection, load circuit switch, are safe and reliable.
Description
Technical field
The utility model relates to rail vehicle detection technique fields, more particularly, to a kind of subway train subordinate inverter mould
The offline testing device of block.
Background technique
As the operation time limit of subway train increases, the continuous aging of equipment causes train fault to take place frequently, seriously restricts rail
The safe and efficient operation of road traffic.The Support work of vehicular electrical equipment, which seems, to become more and more important, using modern inversion transformation technique
Auxiliary inversion system as in subway train with high technology content core component, its working condition normally whether directly
Influence the function of permutation vehicle.
Wherein subordinate inverter module is most crucial in metro traction system while being also the higher component of failure rate, at present
It there is no special inspecting equipment, cause the inconvenience of maintenance, maintenance work, keep its maintenance cost high, it is therefore desirable to throw
Enter certain technical force to be explored and solved on this question.
Utility model content
The purpose of this utility model is exactly to provide a kind of subway train to overcome the problems of the above-mentioned prior art
The offline testing device of subordinate inverter module.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of offline testing device of subway train subordinate inverter module, the device include:
Power-supply system: connecting with 400V power frequency three-phase alternating-current supply, to provide to subordinate inverter module to be tested
The output voltage of 900V/1800V；
Control system: including the upper PC machine being in communication with each other and slave computer, the slave computer respectively with subordinate inverter
Module is connected with load system；
Load system: connecting with subordinate inverter module to be tested, continuous single-phase inverse to be realized by loop switch
The load that lightens detection and static checking of great current.
The power-supply system includes that step-up transformer, isolating transformer, the first full-bridge rectification module and the second full-bridge are whole
Flow module, 400V power frequency three-phase alternating-current supply, step-up transformer and the isolating transformer are sequentially connected, and described first is complete
Bridge rectification module and the second full-bridge rectification module are connect with isolating transformer respectively.
The output end of the power-supply system is equipped with filter capacitor and discharge resistance.
The load system includes external power supply, the first inductance, the second inductance, third inductance, first capacitor, the second electricity
Hold, resistance and by control system control opening and closing the first relay, the second relay, third relay, the 4th relay,
5th relay, the 6th relay and the 7th relay.
The output terminals A of the subordinate inverter module mutually passes through the first relay and the first inductance connection, output end B phase
By the second relay and the second inductance connection, output end C phase passes through third relay and third inductance connection, and described is external
Positive pole is connect by the 6th relay with first capacitor and resistance, and cathode connects with the second capacitor and the 7th relay respectively
It connects, first inductance, the second inductance and third inductance are parallel with one another, and parallel connected end is connected to first by the 6th relay
Between capacitor and the second capacitor, the 4th relay is arranged between external positive pole and parallel connected end, and the described the 5th
Relay is arranged between parallel connected end and external power supply cathode, the resistance and the connection of the 7th relay.
The slave computer includes ARM microcontroller and PLC, the described ARM microcontroller model LPC2214, described
PLC type number be S7-300.
Compared with prior art, the utility model has the advantage that
The present invention realizes the offline functionality survey of subway train subordinate inverter module by the loop switch of load system
Examination, including static checking of great current and continuous single-phase inversion are lightly loaded power detection, improve the maintenance effect of subordinate inverter module
Rate and quality, it is ensured that subway train is securely and reliably runed, and has significant application value.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model subway train subordinate inverter module test device.
Fig. 2 is power-supply system electrical schematic diagram.
Fig. 3 is load system electrical schematic diagram.
Wherein: 1, power-supply system, 2, control system, 3, load system, 4, subordinate inverter module, 101, boosting transformation
Device, 102, isolating transformer, the 103, first full-bridge rectification module, the 104, second full-bridge rectification module, 201, PC machine, 202, bottom
Machine.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment:
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made.
These are all within the protection scope of the present invention.
As shown in Figure 1, a kind of subway train subordinate inverter module test device provided in this embodiment specifically includes that electricity
Source system 1, control system 2, load system 3 and subordinate inverter module 4.Control system 2 respectively with subordinate inverter module 4
And load system 3 connects, subordinate inverter module 4 is connect with power-supply system 1 and load system 3 respectively.
Control system 2 includes PC machine 201 and slave computer 202, and human-computer interaction interface of the PC machine 201 as host computer passes through
Serial communication interface is communicated with slave computer 202.The major function of PC machine includes controlling slave computer by human-machine interaction picture
Pulse frequency and duty ratio, to slave computer 202 transmission instruction and 202 feedback data of real-time reception slave computer, in addition, PC machine is also
With data storage function and test report printing function.
Slave computer 202 is using the ARM microcontroller of LPC2214 and the PLC of S7-300 model, 202 main function of slave computer
It is the loop switch of the output of simulating vehicle subordinate inverter controller and control load system.Slave computer 202 passes through output IGBT
Trig control signal pwm pulse, the IGBT conducting and shutdown of control subordinate inverter module 4, then acquires IGBT trigger board
Feedback signal is analyzed, and sends PC machine 201 for status data.
Power-supply system 1 as shown in Figure 2 includes: step-up transformer 101, isolating transformer 102, the first full-bridge rectification module
103, the second full-bridge rectification module 104, power-supply system 1 use 400V power frequency three-phase alternating-current powered, pass through 101 He of step-up transformer
Isolating transformer 102 carries out boosting isolation, then is rectified by the first full-bridge rectification module 103 and the second full-bridge rectification module 104,
It can connect and export 1800V DC voltage, parallel output 900V DC voltage.Power-supply system is equipped with the capacitor of filter action simultaneously
With the resistance of repid discharge.
Load system 3 as shown in Figure 3 includes: relay K1, K2, K3, K4, K5, K6, K7, inductance L1, L2, L3, capacitor
C1, C2, resistance R1, load system 3 control the closure of relay switch by control system 2, realize to subordinate inverter module 4
The detection of continuous single-phase inversion underloading and static checking of great current.When controlling relay K1 and K5 closure, load blocks are storage
Energy inductance L1 passes through the bridge arm IGBT in A phase and exports continuous two pulses, testing power module IGBT and its parasitic diode
Performance, realize static checking of great current.
When controlling relay K1 and K6 closure, load blocks are inductance L1 and capacitor C1, C2, by defeated to power module
The square wave of certain duty ratio out, frequency close to IGBT maximum switching frequency tests the dynamic of IGBT by way of semi-bridge inversion
Conducting and turn-off capacity, while can achieve the purpose that adjust load current by way of adjusting frequency or duty ratio,
Realize continuous single-phase inversion underloading power detection.
Wherein resistance R1 is as pure resistor load, for putting a link safely, is realized by control relay K7 closure.
Visible in summary: the utility model is lightly loaded power inspection by carrying out continuous single-phase inversion to subordinate inverter module
Survey and static checking of great current realize the offline functionality test to subordinate inverter module, detect board device, harness event
The failures such as IGBT saturation current is abnormal caused by barrier and module aging and switching speed is slack-off, substantially increase subordinate inverter
Module testing and the efficiency of maintenance, also improve repair quality.
Be it is necessary to described herein finally: above embodiments are served only for making the technical solution of the utility model further
It explains in detail, should not be understood as the limitation to scope of protection of the utility model, those skilled in the art is practical new according to this
Some nonessential modifications and adaptations that the above content of type is made belong to the protection scope of the utility model.
Claims (6)
1. a kind of offline testing device of subway train subordinate inverter module, which is characterized in that the device includes:
Power-supply system (1): connecting with 400V power frequency three-phase alternating-current supply, to mention to subordinate inverter module (3) to be tested
For the output voltage of 900V/1800V；
Control system (2): including the upper PC machine being in communication with each other and slave computer, the slave computer respectively with subordinate inverter mould
Block (3) and load system (4) connection；
Load system (4): connecting with subordinate inverter module (3) to be tested, continuous single-phase to be realized by loop switch
The detection of inversion underloading and static checking of great current.
2. a kind of offline testing device of subway train subordinate inverter module according to claim 1, which is characterized in that
The power-supply system (1) include step-up transformer (101), isolating transformer (102), the first full-bridge rectification module (103) and
Second full-bridge rectification module (104), the 400V power frequency three-phase alternating-current supply, step-up transformer (101) and isolating transformer
(102) it is sequentially connected, the first full-bridge rectification module (103) and the second full-bridge rectification module (104) become with being isolated respectively
Depressor (102) connection.
3. a kind of offline testing device of subway train subordinate inverter module according to claim 2, which is characterized in that
The output end of the power-supply system (1) is equipped with filter capacitor and discharge resistance.
4. a kind of offline testing device of subway train subordinate inverter module according to claim 1, which is characterized in that
The load system (4) includes external power supply, the first inductance (L1), the second inductance (L2), third inductance (L3), first capacitor
(C1), the second capacitor (C2), resistance (R1) and by control system (2) control opening and closing the first relay (K1), second after
Electric appliance (K2), third relay (K3), the 4th relay (K4), the 5th relay (K5), the 6th relay (K6) and the 7th after
Electric appliance (K7).
5. a kind of offline testing device of subway train subordinate inverter module according to claim 4, which is characterized in that
The output terminals A of the subordinate inverter module mutually passes through the first relay (K1) and connect with the first inductance (L1), output end B phase
It is connect by the second relay (K2) with the second inductance (L2), output end C phase passes through third relay (K3) and third inductance
(L3) it connects, the external power supply anode is connect by the 6th relay (K6) with first capacitor (C1) and resistance (R1), is born
Pole is connect with the second capacitor (C2) and the 7th relay (K7) respectively, first inductance (L1), the second inductance (L2) and
Three inductance (L3) are parallel with one another, and parallel connected end is connected to first capacitor (C1) and the second capacitor (C2) by the 6th relay (K6)
Between, the 4th relay (K4) is arranged between external positive pole and parallel connected end, the 5th relay (K5)
It is arranged between parallel connected end and external power supply cathode, the resistance (R1) and the connection of the 7th relay (K7).
6. a kind of offline testing device of subway train subordinate inverter module according to claim 1, which is characterized in that
The slave computer includes ARM microcontroller and PLC, the ARM microcontroller model LPC2214, the PLC type number
For S7-300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820996389.3U CN208283489U (en) | 2018-06-26 | 2018-06-26 | A kind of offline testing device of subway train subordinate inverter module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820996389.3U CN208283489U (en) | 2018-06-26 | 2018-06-26 | A kind of offline testing device of subway train subordinate inverter module |
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| Publication Number | Publication Date |
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| CN208283489U true CN208283489U (en) | 2018-12-25 |
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| CN201820996389.3U Expired - Fee Related CN208283489U (en) | 2018-06-26 | 2018-06-26 | A kind of offline testing device of subway train subordinate inverter module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731190A (en) * | 2020-12-04 | 2021-04-30 | 南京轨道交通系统工程有限公司 | Universal tester and method applied to subway train inverter module |
-
2018
- 2018-06-26 CN CN201820996389.3U patent/CN208283489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731190A (en) * | 2020-12-04 | 2021-04-30 | 南京轨道交通系统工程有限公司 | Universal tester and method applied to subway train inverter module |
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Granted publication date: 20181225 |