CN207007955U - Three-phase inverter checking experiment equipment - Google Patents
Three-phase inverter checking experiment equipment Download PDFInfo
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- CN207007955U CN207007955U CN201720640150.8U CN201720640150U CN207007955U CN 207007955 U CN207007955 U CN 207007955U CN 201720640150 U CN201720640150 U CN 201720640150U CN 207007955 U CN207007955 U CN 207007955U
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Abstract
It the utility model is related to Train Parts detection technique field, more particularly to the three-phase inverter checking experiment equipment on a kind of train, including electric power host, detecting system and module to be detected, the module to be detected is to simulate the three-phase inverter module of train, described three-phase inverter module is the inverter module I for simulating dining car or the inverter module II for simulating common in-vehicle, the electric power host and detecting system pass through electric connection, the electric power host includes the dc source generation unit located at upper strata, phase splitting unit and the monitoring unit located at lower floor were simulated located at middle level；The chassis component of described detecting system including case structure and the control panel located at chassis component front end face and the detection unit being installed in chassis component, this equipment have it is simple in construction, it is easy to operate, steady quality, accuracy of judgement, subjects are wide, the features such as strong adaptability.
Description
Technical field
It the utility model is related to Train Parts detection technique field, and in particular to the three-phase inverter inspection on a kind of train
Repair testing equipment.
Background technology
Inverter is a potential device converting direct-current power into alternating-current power, is a kind of process of voltage inversion.Three-phase
Inverter is a kind of electric power large power inverter power source for uninterruptible power system, and any one phase of its three-phase output is with
Property line N working method and half-bridge converter circuit is essentially identical.The phase difference exported between three-phase voltage is by three contraries
The time difference that power switch pipe turns on the change each bridge arm of the device three-phase voltage type inverter circuit operation principle determined, it is in fact
It is a kind of process of voltage inversion with converter.Converter is that the alternating voltage of power network is changed into stable 12V DC to export,
Voltage can be realized by it, frequency, phase, be consistent with grid height, because alternating current only has voltage, frequency, phase
This three's condition just can be with grid-connected when reaching requirement simultaneously.The principle of three-phase inverter：It can exist from a phase therein is analyzed
The course of work in a cycle is learnt.In positive half cycle, VT2 shut-offs, VT1 is driven with PWM mode and turned on.Now VT1 is exported
Contour not wide square-wave voltage obtained after inductance LO, electric capacity C filter out radio-frequency component in the load of L1 output ends it is smooth
The positive half cycle of sine voltage.Positive half cycle current Io direction is from top to bottom, i.e., by power supply E1 positive pole through load in load
Return to negative pole；In negative half period, VT1 shut-offs, VT2 is driven with PWM mode and turned on, and the negative half-cycle current Io now loaded is by power supply E2
Positive pole return to E2 negative pole through load, inductance L0 and VT2, it is in opposite direction with the load current of positive half cycle.Therefore in load
Obtain the negative half period of sine voltage.VT1 and VT2 is worked in respective half period with PWM mode, in its turn-off time
Interior, energy storage inductor Lo stays diode D1 or D2 to carry out afterflow power supply to load by being permitted, and load is obtained continuous current waveform.
Three-phase inverter is also used for the air-conditioning power supply on the train of operation, it is also possible to the kitchen rice steaming box of dining car on train,
The electrical equipment of electromagnetic oven, micro-wave oven, electric frying pan etc. is powered.Train, it is one of vehicles important at present, carries daily
Countless person-times of important communications and transportation task is transported, the effect of greatly facilitating is brought for the economy and transport development of country,
Also brought great convenience for the daily life of the people masses.But in train operation, it can divide constantly by phase-separating section
Phase region is because contact net is without electricity, when the output of locomotive DC-free 600V power supplys, it is necessary to which inverter is stopped, after by phase-separating section,
Contact net has electricity, locomotive output DC600V power supplys, the restarting work of train inverter.Exported repeatedly because DC600V powers,
Stop, impact is carried to train inverter, inverter service life is leveraged, so often there is inverter circuit board
Component wear phenomenon, therefore, the probability of malfunction highest of inverter, before coming air-conditioning failure, car door failure, traction failure etc..
More serious fault of converter may cause equipment cooling blower or air compressor not to work, and cause passenger to complain and move back
Ticket event, the favorable image of railway enterprises is had a strong impact on, also caused harmful effect to railway reputation.However, due to
Inverter install compact, clearance space is small, and module dismounting is difficult to operate, and maintenance activity is extremely difficult, and maintenance all at present is all
Onboard carry out, and the rainy day can not operation, limited by space enrironment during maintenance, run into exceptional fault must integral demounting get off to enter
Row is overhauled, and needs human hand to support and adjust in disassembly process, cumbersome and time consuming, such as only a three-phase inverter is changed in maintenance
Module just needs the people of experienced operator 2 to spend 7~8 hours, and operating efficiency is very low, in addition, in outdoor, the connection of high voltage power supply is non-
It is often difficult, and the very maximum probability of Danger Electric shock risk be present, the problem of the above, it is difficult to meet the communications and transportation requirement of train.Therefore, carry
It is problem urgently to be resolved hurrily for a kind of three-phase inverter equipment that can be overhauled and test indoors.
The content of the invention
The purpose of this utility model is to overcome shortcomings and deficiencies of the prior art, there is provided a kind of simple in construction, operation
Three-phase inverter maintenance and experiment measurement equipment on train convenient, operating efficiency is high.
The object of the present invention is achieved like this：
The three-phase inverter checking experiment equipment of the present invention, including electric power host, detecting system and module to be detected, it is described
Module to be detected is to simulate the three-phase inverter module of train, the electric power host and detecting system 2 by being electrically connected with, described
Electric power host includes the dc source generation unit located at upper strata, phase splitting unit and the prison located at lower floor was simulated located at middle level
Control unit；The chassis component of described detecting system 2 including case structure and located at chassis component front end face control panel with
And the detection unit in chassis component is installed on, described detection unit includes filtering located at the power line of chassis component interior side
Ripple device, capacitor and inductor filtering, contactor and binding post are sequentially provided with the side of described power line filter, in described electricity
The lower section of source line filter is from left to right sequentially provided with Insurance Block, diode, current sensor, electronic voltage detection plate and control
Transformer.
Preferably, wave filter is installed in described dc source generation unit, rectification is provided with the side of wave filter 41
Device, opposite side are additionally provided with power transformer.
Preferably, described simulation phase splitting unit use controllable silicon trigger board, when the switches are opened, trigger board output
Trigger signal turns on controllable silicon, produces DC voltage, when switch closes, trigger board Triggerless, and controllable silicon cut-off, no direct current
Voltage produces.
Preferably, be provided with inside described monitoring unit industrial computer PLC, described industrial computer PLC one end respectively with
Digital quantity I/O modules connect with Analog input mModule, and the other end of the industrial computer PLC is also associated with printer.
Preferably, described is the inverter module I of module simulation dining car to be detected or the inverter of simulation common in-vehicle
Module II.
Preferably, described chassis component includes casing and case lid, is hinged between the casing and case lid by loose-leaf, institute
The front end face for stating casing is provided with control panel, moving parts is provided with below the casing, the moving parts is mounted to
Roller bearing, roller or universal wheel below chassis component.
Preferably, the DC voltage of described dc source generation unit 4 is DC600V, or DC110V.
Preferably, described control panel is provided with module I connector and the connector of module II, is connected in the module I
The lower section of mouth is provided with module I starting button, module I stop button and module I cut-off button, under the described connector of module II
Side be provided with the starting button of module II, the stop button of module II and the cut-off button of module II, on the control panel in
Between be provided with display screen.
Preferably, described industrial computer PLC is used and is digitized the networking monitored automatically, remote-controllableization is simulated on train
Load control structure；Data input is realized by touch-screen；Data output is realized by printer.
Compared with present technology, the characteristics of the utility model and progress is：
1. it is simple in construction, it is easy to operate.Three-phase inverter checking experiment stable equipment operation of the present utility model is reliable, behaviour
Make it is simple, easy to maintenance, effectively increase inverter maintenance operating efficiency, for analyze fault of converter reason, it is especially inverse
The failure cause for becoming device integrated circuit related with same plate provides data support, can effectively improve and carry out split-phase mould to three-phase inverter
The efficiency of plan experiment, possess the analysis of three-phase inverter startup separator, record etc., there is confession, power-off time is adjustable, working condition shows
Show, start success count, start the work(such as fail count, the record of failure failure cause, waveform real-time display, the inquiry of historical data
Can, while self registering historical data contributes to the quick analyzing and processing to surface-mounted integrated circuit failure, realizes maintenance or experiment
Three-phase inverter crosses the unattended experiment of distributed simulation；Realize the reading to " information code " of three-phase inverter；It is too at a stalemate
Continuous time and power-on time can freely be set, and can realize that automatic imitation crosses split-phase（Unattended experiment）, alleviate artificial examination
The labor intensity tested.
2. steady quality, accuracy of judgement.Equipment of the present utility model passes through the gateway communication on industrial computer PLC and control
Information, the information code of each inverter can be read, judge that three-phase inverter starts whether work is normal, record starts and time of failure
Number, time or failure code, foundation is provided for analysis result of the test, breakdown judge is accurate：Simple interface, simple to operate, fraction
Limit management software system, ensure supervisory control system running safety, and can query history test data sheet and waveform, data record is accurate,
Maximum was preserved up to 360 days, and Query Result can be printed directly, is enriched man-machine interaction, can also be exported to Excel file, this
Equipment has a good application prospect and economical, societal benefits.
3. subjects are wide, strong adaptability.The common row of three-phase inverter checking experiment equipment simulating of the present utility model
Periphery and auxiliary equipment when three-phase inverter module in the three-phase inverter module or dining car of car works, therefore can be by three
Phase inverter module pulls down maintenance, can be protected from weather influences, not limited by place, and this repair apparatus can adapt to current each factory
Family three-phase inverter overhauled and cross split-phase simulated test, can be arranged as required to for ordinary train three-phase inverter or
The operating mode for the three-phase inverter that dining car uses is tested on train, can also be according to the gear of selecting switch by three-phase inverter
Module I and three-phase inverter module II concurrently set to be tested for the operating mode of dining car pattern and common in-vehicle pattern.
Brief description of the drawings
Fig. 1 is front view structure simplified schematic diagram of the present utility model.
Fig. 2 is control principle structure schematic diagram of the present utility model.
Fig. 3 is the front view structure simplified schematic diagram of electric power host 1.
Fig. 4 is the theory structure simplified schematic diagram of electric power host 1.
Fig. 5 is the structure schematic diagram of chassis component 7 of test system 2.
Fig. 6 is the external structure simplified schematic diagram of test system 2.
Fig. 7 is the internal structure simplified schematic diagram of test system 2.
Fig. 8 is the circuit theory simplified schematic diagram of test system 2.
Component names and sequence number in figure：
Electric power host 1, detecting system 2, be detected module 3, dc source generation unit 4, wave filter 41, rectifier 42,
Power transformer 43, simulated phase splitting unit 5, trigger board 51, monitoring unit 6, industrial computer PLC61, digital quantity I/O modules 62,
Analog input mModule 63, printer 64, chassis component 7, casing 71, case lid 72, loose-leaf 73, moving parts 74, detection unit
8th, power line filter 81, capacitor and inductor filtering 82, contactor 83, binding post 84, control transformer 85, electronic voltage detection plate
86th, current sensor 87, diode 88, Insurance Block 89, control panel 9, module I starting button 91, module I stop button 92,
Module I connector 93, display screen 94, the connector 95 of module II, the starting button 96 of module II, the stop button 97 of module II, module
II cut-off button 98, module I cut-off button 99.
Embodiment
Structure of the present utility model is described below in conjunction with accompanying drawing and embodiment.
Three-phase inverter checking experiment equipment of the present utility model, is realized by following scheme：
Referring to shown in accompanying drawing 1~8, three-phase inverter checking experiment equipment of the invention, including electric power host 1, detection system
System 2 and module to be detected 3, the module 3 to be detected are to simulate the three-phase inverter module of train, described three-phase inverter mould
Block is the inverter module I for simulating dining car or the inverter module II for simulating common in-vehicle, the electric power host 1 and detecting system
2 by being electrically connected with, and the electric power host 1 includes the dc source generation unit 4 located at upper strata, simulated split-phase located at middle level
Unit 5 and the monitoring unit 6 located at lower floor；Described detecting system 2 includes the chassis component 7 of case structure and located at cabinet
The control panel 9 of the front end face of component 7 and the detection unit 8 being installed in chassis component 7, described detection unit 8 include setting
In the power line filter 81 of the interior side of chassis component 7, electric capacity is sequentially provided with the side of described power line filter 81
Inductor filter 82, contactor 83 and binding post 84, guarantor is from left to right sequentially provided with the lower section of described power line filter 81
Dangerous seat 89, diode 88, current sensor 87, electronic voltage detection plate 86 and control transformer 85.
Referring to shown in accompanying drawing 2~4, wave filter 41 is installed in described dc source generation unit 4, in wave filter 41
Side is provided with rectifier 42, and opposite side is additionally provided with power transformer 43, and the DC voltage of described dc source generation unit 4 is
DC600V, or DC110V；Described simulation phase splitting unit 5 using controllable silicon trigger board 51, when the switches are opened, triggering
Plate 51 exports trigger signal conducting controllable silicon, produces DC voltage, and when switch closes, trigger board Triggerless, controllable silicon is cut
Only, no DC voltage produces；Industrial computer PLC61 is installed inside described monitoring unit 6, the one of described industrial computer PLC61
End is connected with digital quantity I/O modules 62 and Analog input mModule 63 respectively, and the other end of the industrial computer PLC61 is also associated with
Printer 64, described industrial computer PLC61 is used and is digitized the networking monitored automatically, remote-controllableization simulates bearing on train
Carry control structure；Data input is realized by touch-screen；Data output is realized by printer 64.
Referring to shown in accompanying drawing 5, described chassis component 7 includes casing 71 and case lid 72, the casing 71 and case lid 72 it
Between it is be hinged by loose-leaf 73, the front end face of the casing 71 is provided with control panel 9, and the lower section of the casing 71 is provided with move portion
Part 74, the moving parts 74 are mounted to roller bearing, roller or the universal wheel of the lower section of chassis component 7.
Referring to shown in accompanying drawing 6, described control panel 9 is provided with module I connector 93 and the connector 95 of module II, in institute
The lower section for stating module I connector 93 is provided with module I starting button 91, module I stop button 92 and module I cut-off button 99,
The described lower section of II connector of module 95 is provided with to be powered off provided with the starting button 96 of module II, the stop button 97 of module II and module II
Button 98, the centre on the control panel 9 are provided with display screen 94.
Operation principle：
Referring to shown in accompanying drawing 2 and Fig. 8, inverter checking experiment equipment of the invention, control during work power supply DC110V and
Working power DC6000V is respectively connected to inspection rack, passes through gateway communication and control I（Selecting switch SA I）And pass through gateway communication
And control II（Selecting switch SA II）Control electricity to three-phase inverter module I and three-phase inverter module II to be detected respectively
Road power supply (DC110V）, and respectively divided three-phase inverter module I and three-phase inverter module II according to the gear of selecting switch
It is not set as dining car pattern or common in-vehicle pattern（It can be set to identical or different simultaneously）, to be ready in next step.
Control power supply and mode of operation press working power control button SB1 or SB2, the now control of working power after establishing
Contactor KM I and KM II processed power by adhesive and to three-phase inverter module I and three-phase inverter module II to be measured.
Three-phase inverter module I and three-phase inverter module II AC380V output voltages after electric and normal work through defeated
Go out end respectively introduce monitor station capacitor and inductor filtering Z1, Z2, Z1-1, Z2-1 then through output contactor KM A and KM B to
Monitor station output end is powered.
Monitor station can export three-phase inverter simultaneously while three-phase inverter module I and three-phase inverter module II work
Working state signal machine gateway operation code to accessory power outlet（Working condition）And power input socket（Gateway signal）, it is secondary
Signal supply industrial computer PLC decoding displays.
Claims (9)
- A kind of 1. three-phase inverter checking experiment equipment, it is characterised in that：Including electric power host（1）, detecting system（2）With it is to be checked Survey module（3）, the module to be detected（3）Be simulate train three-phase inverter module, the electric power host（1）It is with detection System（2）By being electrically connected with, the electric power host（1）Including the dc source generation unit located at upper strata（4）, located at middle level mould Intended phase splitting unit（5）And the monitoring unit located at lower floor（6）；Described detecting system（2）Cabinet including case structure Component（7）With located at chassis component（7）The control panel of front end face（9）And it is installed on chassis component（7）Interior detection unit （8）, described detection unit（8）Including located at chassis component（7）The power line filter of interior side（81）, in described electricity Source line filter（81）Side be sequentially provided with capacitor and inductor filtering（82）, contactor（83）And binding post（84）, described Power line filter（81）Lower section be from left to right sequentially provided with Insurance Block（89）, diode（88）, current sensor（87）, electricity Sub- voltage detecting plate（86）With control transformer（85）.
- 2. three-phase inverter checking experiment equipment according to claim 1, it is characterised in that：Described dc source generation Unit（4）Wave filter is inside installed（41）, in wave filter（41）Side be provided with rectifier（42）, opposite side be additionally provided with power supply change Depressor（43）.
- 3. three-phase inverter checking experiment equipment according to claim 1, it is characterised in that：Described simulation split-phase list Member（5）Using the trigger board of controllable silicon（51）, when the switches are opened, trigger board（51）Export trigger signal conducting controllable silicon, production Raw DC voltage, when switch closes, trigger board Triggerless, controllable silicon cut-off, no DC voltage generation.
- 4. three-phase inverter checking experiment equipment according to claim 1, it is characterised in that：Described monitoring unit（6） Inside is provided with industrial computer PLC（61）, described industrial computer PLC（61）One end respectively with digital quantity I/O modules（62）And mould Analog quantity input module（63）Connection, the industrial computer PLC（61）The other end be also associated with printer（64）.
- 5. three-phase inverter checking experiment equipment according to claim 1, it is characterised in that：Described module to be detected （3）It is the inverter module I for simulating dining car or the inverter module II for simulating common in-vehicle.
- 6. three-phase inverter checking experiment equipment according to claim 1, it is characterised in that：Described chassis component（7） Including casing（71）And case lid（72）, the casing（71）And case lid（72）Between pass through loose-leaf（73）It is be hinged, the casing （71）Front end face be provided with control panel（9）, the casing（71）Lower section moving parts is installed（74）, the moving parts （74）It is mounted to chassis component（7）Roller bearing, roller or the universal wheel of lower section.
- 7. three-phase inverter checking experiment equipment according to claim 2, it is characterised in that：Described dc source generation Unit（4）DC voltage be DC600V, or DC110V.
- 8. three-phase inverter checking experiment equipment according to claim 1, it is characterised in that：Described control panel（9） It is provided with module I connector（93）With the connector of module II（95）, in the module I connector（93）Lower section be provided with module I Starting button（91）, module I stop button（92）With module I cut-off button（99）, in the described connector of module II（95）Under Side is provided with the starting button of module II（96）, the stop button of module II（97）With the cut-off button of module II（98）, in the control Panel processed（9）On centre be provided with display screen（94）.
- 9. three-phase inverter checking experiment equipment according to claim 4, it is characterised in that：Described industrial computer PLC （61）Using digitlization monitor automatically networking, remote-controllableization simulation train on load control structure；Pass through touch-screen Realize data input；Pass through printer（64）Realize data output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640150.8U CN207007955U (en) | 2017-06-03 | 2017-06-03 | Three-phase inverter checking experiment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640150.8U CN207007955U (en) | 2017-06-03 | 2017-06-03 | Three-phase inverter checking experiment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207007955U true CN207007955U (en) | 2018-02-13 |
Family
ID=61446606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720640150.8U Expired - Fee Related CN207007955U (en) | 2017-06-03 | 2017-06-03 | Three-phase inverter checking experiment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207007955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219421A (en) * | 2017-06-03 | 2017-09-29 | 陈岗 | The detection testing equipment and its method of inverter or charger |
| CN109164320A (en) * | 2018-09-05 | 2019-01-08 | 中国铁路昆明局集团有限公司昆明车辆段 | System type inverter ancillary test device |
-
2017
- 2017-06-03 CN CN201720640150.8U patent/CN207007955U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219421A (en) * | 2017-06-03 | 2017-09-29 | 陈岗 | The detection testing equipment and its method of inverter or charger |
| CN109164320A (en) * | 2018-09-05 | 2019-01-08 | 中国铁路昆明局集团有限公司昆明车辆段 | System type inverter ancillary test device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |