CN207408507U - power module test system - Google Patents
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- CN207408507U CN207408507U CN201721398583.3U CN201721398583U CN207408507U CN 207408507 U CN207408507 U CN 207408507U CN 201721398583 U CN201721398583 U CN 201721398583U CN 207408507 U CN207408507 U CN 207408507U
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Abstract
The utility model discloses a kind of power module test systems,For testing IGBT power module to be tested,IGBT power module includes IGBT driving board,IGBT module and the first current sensor,Test system includes direct current supply module,Control module,Indicator light and resistance,Each several part of the direct current supply module respectively with control module and IGBT power module is connected,Output terminal of the control module respectively with IGBT driving board and the first current sensor is connected,It is parallel to after two indicator light series connection in IGBT module,One in two indicator lights is in parallel with the upper bridge arm of IGBT module,Another is in parallel with the lower bridge arm of IGBT module,First current sensor is connected to by sampling line on upper bridge arm and the connecting line of lower bridge arm,Resistance is connected between sampling line and the IGBT collectors of upper bridge arm and between sampling line and the IGBT emitters of lower bridge arm.Using the test system of the utility model, can be achieved at the same time in IGBT power module IGBT module, the test of IGBT driving board and current sensor.
Description
Technical field
The utility model is related to technical field of measurement and test, and in particular to a kind of power module test system.
Background technology
Into the new century, with petering out for global natural resources, photovoltaic generation endangers to the energy for alleviating getting worse
Machine and environmental problem have a very important significance.Photovoltaic power generation technology is to solve energy as other renewable energy technologies
The important means of source crisis.
In current several new energy technologies, photovoltaic generation is decided to be following most advantageous with unique prospect advantage
The energy has inexhaustible potentiality.As the important component in photovoltaic application system, photovoltaic DC-to-AC converter will quickly be sent out
Exhibition, numerous photovoltaic DC-to-AC converter manufacturing enterprises from ground zero when produce small-power inverter (below 30kW) gradually develop to life
The large-scale inverter (based on 250Kw, 400kW, 500kW) of production, and it is widely used in the photovoltaic plant of various countries.Test is as inversion
The important step that device dispatches from the factory can only be dispatched from the factory by the inverter of test, and inverter test is primarily referred to as to its core
Heart device, that is, insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) power module
Test, therefore, it is necessary to build power module test device.
In the prior art, also there is the test device of some power modules, but these test devices are substantially all simply at present
To the whether normal simple test of IGBT power module overall work, it is impossible to realize the test to each composition part of power module
With condition adjudgement.
Utility model content
The utility model embodiment provides a kind of power module test system, which is by simple connection
The test to the IGBT module and IGBT driving board of IGBT power module can be achieved.
One side according to the present utility model provides a kind of power module test system, for insulation to be tested
Grid bipolar transistor IGBT power module is tested, and IGBT power module includes IGBT driving board, IGBT module and first
Current sensor, the test system include direct current supply module, control module, indicator light and resistance, and control module is used to control
Whether to IGBT driving board drive signal issued, indicator light, whether normal, resistance if being used to indicate IGBT module, for detecting the
Whether one current sensor is normal；
Direct current supply module is connected respectively with control module, IGBT driving board, IGBT module and the first current sensor, control
Output terminal of the molding block (120) respectively with IGBT driving board and the first current sensor is connected, in parallel after two indicator light series connection
In in IGBT module, one in two indicator lights is in parallel with the upper bridge arm of IGBT module, another lower bridge with IGBT module
Arm is in parallel；
First current sensor is connected to by sampling line on upper bridge arm and the connecting line of lower bridge arm, and resistance is connected to
It samples between line and the IGBT collectors of upper bridge arm and between sampling line and the IGBT emitters of lower bridge arm.
One side according to the present utility model, direct current supply module and the negative temperature coefficient NTC temperature built in IGBT module
Sensor connection is spent, control module is connected with the output terminal of NTC temperature sensors, for being exported according to NTC temperature sensors
Electric signal judge whether NTC temperature sensors normal.
One side according to the present utility model, test system further include the dc bus electrode line for being connected to IGBT module
On the second current sensor and/or, the voltage sensor being connected between the positive and negative polar curve of IGBT module dc bus；
Direct current supply module be connected with the second current sensor and/or, direct current supply module is connected with voltage sensor；
Control module be connected with the output terminal of the second current sensor and/or, control module is connected with voltage sensor.
One side according to the present utility model, control module include master control borad, and test system further includes host computer, master control
Plate, for being controlled whether to issue drive signal to IGBT driving board according to the control instruction of host computer, the input terminal of master control borad with
Host computer connects, and the output terminal of master control borad is connected with the IGBT driving board.
One side according to the present utility model, control module are further included from controller, are used for from controller by master control borad
The drive signal issued is sent to IGBT driving board, and master control borad from controller with IGBT driving board by being connected.
One side according to the present utility model, test system further include the interface board being used to implement for being electrically isolated, direct current
Power supply module is connected by interface board with from controller and IGBT driving board respectively.
One side according to the present utility model, test system further include to show the display module of test result, show
Show that module is connected with control module, alternatively, display module is connected with host computer, alternatively, master control borad by display module with it is upper
Machine connects.
One side according to the present utility model, it is single that direct current supply module includes the be connected with control module first power supply
Member, the second power supply unit being connected with IGBT driving board and the 3rd power supply unit being connected with IGBT module.
One side according to the present utility model, the 3rd power supply unit include sequentially connected mains supply, contactor and
Direct-current switch power supply, the output terminal of direct-current switch power supply are connected with IGBT module, and control module is connected with contactor.
One side according to the present utility model, IGBT power module include forming three-phase bridge by three IGBT module parallels
Circuit.
The power module test system of the utility model embodiment, by direct current supply module for power supply, by by control module,
Indicator light and resistance are connected to according to certain connection relation in IGBT power module that needs to be tested, new by this practicality
The power module test system of type embodiment can be achieved at the same time to IGBT module, the IGBT driving board in IGBT power module
With the test of current sensor, and the line for testing system and IGBT power module is simply easily realized, more meeting actual test needs
It asks.
Description of the drawings
By reading the detailed description made referring to the drawings to non-limiting example, other spies of the utility model
Sign, objects and advantages will become more apparent upon, wherein, the same or similar reference numeral represents the same or similar feature.
Fig. 1 is a kind of structure diagram of power module test system in the utility model first embodiment；
Fig. 2 is IGBT module and the attachment structure schematic diagram of indicator light and resistance in the utility model embodiment；
Fig. 3 is a kind of structure diagram of power module test system in the utility model second embodiment；
Fig. 4 is a kind of structure diagram of power module test system in the utility model 3rd embodiment；
Fig. 5 is a kind of structure diagram of power module test system in the utility model fourth embodiment；
Fig. 6 is a kind of structure diagram of power module test system in the 5th embodiment of the utility model；
Fig. 7 is a kind of structure diagram of power module test system in the utility model sixth embodiment；
Fig. 8 is the structure diagram of direct current supply module in the utility model embodiment；
Fig. 9 is the structure diagram of the 3rd power supply unit in the utility model embodiment；
Figure 10 is a kind of structure diagram of power module test system in the 7th embodiment of the utility model；
Figure 11 is a kind of structure diagram of power module test system in the utility model specific embodiment；
Figure 12 is the circuit diagram of the major loop part of power module test system in the utility model specific embodiment.
Wherein：
110- direct current supply modules；120- control modules；130- indicator lights；140- resistance；The second current sensors of 150-；
160- voltage sensors；170- host computers；180- interface boards；190- power warning lamps；
200-IGBT power modules；210-IGBT driving plates；220-IGBT modules；The first current sensors of 230-；240-
NTC temperature sensors；
The first power supply units of 111-；The second power supply units of 112-；The 3rd power supply units of 113-；
121- master control borads；122- is from controller；123- display modules；
1- mains supplies；2- circuit protecting switch；3- contactors；4- direct-current switch power supplies.
Specific embodiment
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.It is retouched in detail in following
In stating, it is proposed that many details, in order to provide the comprehensive understanding to the utility model.But for people in the art
It will be apparent that the utility model can be implemented in the case of some details being not required in these details for member.
Below the description of embodiment is used for the purpose of providing to the more preferable of the utility model by showing the example of the utility model
Understanding.The utility model is never limited to any concrete configuration set forth below, but is not departing from the essence of the utility model
Any modification, replacement and the improvement of element, component and algorithm are covered on the premise of god.In the the accompanying drawings and the following description, do not have
Well known structure and technology are shown, it is unnecessary fuzzy to avoid causing the utility model.
Fig. 1 shows a kind of structure diagram of power module test system in the utility model one embodiment.This reality
It is used for the power module test system of new embodiment to insulated gate bipolar transistor IGBT power module 200 to be tested
It is tested.As can be seen from Figure, which can mainly include direct current supply module 110, control mould
Block 120, indicator light 130 and resistance 140, IGBT power module can include IGBT driving board 210, IGBT module 220 and first
Current sensor 230.When needing to test IGBT power module 200, direct current supply module 110 is used for test system
With each several part power supply in IGBT power module 200, control module 120 is used to control whether to issue drive to IGBT driving board 210
Dynamic signal controls whether the IGBT module 220 of IGBT power module 200 turns on, indicator light 130 is used to indicate IGBT module
Whether 220 is normal, and whether resistance 140 is normal for detecting the first current sensor 230.
Test when, direct current supply module 110 respectively with control module 120, driving plate 210, IGBT module 220 and first
Current sensor 230 connects, and control module 120 connects respectively with the output terminal of 210 and first current sensor 230 of IGBT driving board
It connects, two indicator lights 130 are parallel to after connecting in IGBT module 220, one in two indicator lights 130 and IGBT module 220
Upper bridge arm it is in parallel, another is in parallel with the lower bridge arm of IGBT module 220, and the first current sensor 230 is by sampling line connection
On upper bridge arm and the connecting line of lower bridge arm, resistance 140 be connected to sampling line and upper bridge arm IGBT collectors between with
And between sampling line and the IGBT emitters of lower bridge arm.
Fig. 3 shows IGBT module 220 in the utility model embodiment with indicator light 130 (including finger shown in figure
Show lamp 131 and indicator light 132) and IGBT module 220 and resistance 140 (including resistance 141 shown in figure and resistance 142)
Attachment structure schematic diagram, IGBT module 220 include two IGBT, the emitter E of the IGBT of upper bridge arm and the IGBT of lower bridge arm
Collector C connections.When IGBT module 220 is connected in circuit, the collector C of the IGBT of upper bridge arm is connected to direct current mother
On the electrode line of line, the emitter E of the IGBT of lower bridge arm is connected in the negative line of dc bus.
In the utility model embodiment, direct current supply module 110 be used for for power module test system each component and
Each component of IGBT power module 200 provides power input respectively.For example, for IGBT module 220, direct current supply module 110
The both ends of IGBT module 220 are connected to by dc bus electrode line and dc bus negative line respectively, are supplied for IGBT module 220
Electricity.
It should be noted that direct current supply module 110 when providing working power, is the size for the voltage that each several part provides
It is that the operating voltage of power pack as needed determines.That is, for different parts to be powered, direct current supply module
The voltage of 110 outputs can be different.
IGBT power module 200 is carried out using the power module test system shown in the utility model embodiment Fig. 1
During test, the test whether intact to the whether intact test of IGBT module 220 and IGBT driving board 210 can be realized, survey
The main flow of examination can include：
Direct current supply module 110 applies a DC voltage, control module 120 by dc bus for IGBT module 220
It is not issued to IGBT driving board 210 and does not apply drive signal in drive signal i.e. IGBT module 220 (upper bridge arm and lower bridge arm), such as
Fruit IGBT module 220 is intact, and the IGBT of upper bridge arm and lower bridge arm is disconnected, and the direct current pressure drop of above-mentioned application is at two of series connection
On indicator light 130, indicator light 131 and indicator light 132 send light, if an IGBT failure of IGBT module 220 misleads,
Then the indicator light corresponding with the IGBT of failure in indicator light 132 of indicator light 131 is short-circuited, and the DC voltage of above-mentioned application all drops
On another lamp, then the lamp lamp that goes out is bright.If simultaneously to upper and lower bridge arm apply drive signal, two under normal circumstances
IGBT is simultaneously turned on, and indicator light 131 and indicator light 132 are short-circuited, and indicator light 131 and indicator light 132 do not shine.
Drive signal is issued from control module 120 to IGBT driving board 210, controls IGBT driving board 210 to IGBT module
220 upper bridge arm applies drive signal, when IGBT driving board 210 and normal IGBT module 220, the IGBT conductings of upper bridge arm,
Indicator light 131 in parallel is short-circuited on upper bridge arm, and indicator light in parallel in lower bridge arm all drops in the DC voltage of above-mentioned application
On 132, the indicator light send light (with not to IGBT module 220 apply drive signal when compared with).If likewise, by controlling
Module 120 controls IGBT driving board 210 to apply drive signal, IGBT driving board 210 and IGBT to the lower bridge arm of IGBT module 220
When module 220 is normal, the IGBT of lower bridge arm is turned on, and indicator light 132 in parallel is short-circuited in lower bridge arm, the direct current of above-mentioned application
Voltage is all dropped on indicator light 131 in parallel on upper bridge arm, which sends light.
As it can be seen that the difference of the drive signal applied in IGBT module 220, indicator light are controlled by control module 120
130 it is bright, go out, bright degree also can be different, it is whether intact that IGBT module 220 can be tested out by the state of indicator light 130,
When IGBT module 220 is intact, whether by applying drive signal, can further to test out IGBT driving board 210 intact.
In the IGBT module 220 of existing IGBT power module 200 one at the common end of the IGBT of the IGBT and lower bridge arm of bridge arm
As can also be connected with the first current sensor 230, the first current sensor 230 is used to carry out the electric current in IGBT module 220
Monitoring.The test system of the utility model embodiment, control module 120 be additionally operable to the output to the first current sensor 230 into
Row monitoring, control module 120 can be realized according to the output and resistance 130 of the first current sensor 230 to the first current sense
The test of device 230.It is tested using whether the test system of the utility model embodiment is intact to the first current sensor 230
Key step include：
Only when applying drive signal on the upper bridge arm of IGBT module 220, upper bridge arm IGBT conductings, upper bridge arm, sampling line
And the resistance 142 in parallel with lower bridge arm is in a loop, the DC voltage of above-mentioned application is all dropped in parallel with lower bridge arm
Resistance 142 on, can be with the electricity in counter circuit according to the resistance value 142 of the voltage value of DC voltage and the resistance of lower bridge arm parallel connection
Flow valuve, the current value ratio pair measured according to the current value and the first current sensor 230, it can be determined that the first current sensor
Whether 230 is intact.
Equally, can also drive signal only be applied in the lower bridge arm of IGBT module 220, lower bridge arm IGBT is turned at this time,
What the first current sensor 230 measured be lower bridge arm, sampling line and the resistance 141 in parallel with upper bridge arm electricity in the loop
Flow valuve, by comparing the current value that measures and according to resistance 141 in parallel on the voltage value of the DC voltage of application and upper bridge arm
The current value that goes out of computing the resistor value, it can be determined that whether the first current sensor 230 intact.
In the utility model embodiment, when IGBT module 220 is built-in with NTC temperature sensors 240, direct current supply module
110 are also connected with NTC temperature sensors 240, and control module 120 is connected with the output terminal of NTC temperature sensors 240, for
The electric signal exported according to the NTC temperature sensors 240 judges whether the NTC temperature sensors 240 are normal, such as Fig. 3 institutes
Show.
Control module 120 is calculated by gathering the output of NTC temperature sensors 240 according to the electric signal of acquisition
The temperature value of IGBT module 220 whether in default normal temperature range, can verify IGBT moulds according to temperature value is judged
Whether the NTC temperature sensors 240 of block 220 are intact.
In the utility model embodiment, test system can also include the dc bus anode for being connected to IGBT module 220
The second current sensor 150 on line and/or, be connected to voltage sensor between the positive and negative polar curve of 220 dc bus of IGBT module
160, as shown in Figure 4.
At this point, direct current supply module 110 be connected with the second current sensor 150 and/or, direct current supply module 110 with electricity
Pressure sensor 160 connects.Control module 120 be connected with the output terminal of the second current sensor 150 and/or, control module 120
It is connected with the output terminal of voltage sensor 160.
The test system of the utility model embodiment, the second current sensor 150 are used for the DC side to IGBT module 220
Electric current is detected, and voltage sensor 160 is used for what the DC voltage of IGBT module 220 was detected.By setting the
Two current sensors 150 and/or voltage sensor 160 realize the detection to 220 DC side electric current of IGBT module and/or voltage,
According to the current value and/or voltage value and the test connection state of reality detected, it can be determined that go out 220 direct current of IGBT module
Whether the wiring condition of side is intact.
In the utility model embodiment, control module 120 can include master control borad 121, and test system further includes host computer
170, as shown in figure 5, the input terminal of master control borad 121 is connected with host computer 170, the output terminal and IGBT driving board of master control borad 121
210 connections.
Master control borad 121 receives the control instruction of host computer 170, is according to control instruction control for generating drive signal
It is no to send drive signal to IGBT driving board 210 and be to apply to drive to upper bridge arm, the either upper bridge arm of lower bridge arm and lower bridge arm
Dynamic signal.In practical applications, tester can be exported according to actual test needs by host computer 170 to master control borad 121
Different control instructions completes the test to the different components of IGBT power module 200.
In the utility model embodiment, control module 120 can also include the drive signal for issuing master control borad 121
The slave controller 122 of IGBT driving board 210 is sent to, as shown in fig. 6, master control borad 121 from controller 122 and IGBT by driving
Plate 210 connects.
In practical applications, the connection between wiring and device when testing for convenience, can be by control module 120
It is divided into master control borad 121 and from 122 two parts of controller, by completing test components of system as directed and IGBT power moulds from controller 122
The connection of 200 part of block, master control borad 121 from controller 122 by drive signal by being sent to the IGBT module for needing to test
220, the complexity of line on master control borad 121 can be reduced.
Since the operating voltage needed for test 200 each several part of system and IGBT power module may be different, direct current supply mould
Block 110 also can be different for the power supply that each several part provides, and in order to realize the isolation of the power supply of direct current supply module 110, provide test
Security, in the utility model embodiment, test system can also include interface board 180, and direct current supply module 110 pass through interface
Plate 180 is connected respectively with from controller 122 and IGBT driving board 210, as shown in Figure 7.
In the utility model embodiment, direct current supply module 110 includes the first power supply unit being connected with control module 120
111st, the second power supply unit 112 being connected with IGBT driving board 210 and the 3rd power supply unit 113 being connected with IGBT module 220,
As shown in Figure 8.
In practical applications, in order to which the confession of part of detecting and tested part is electrically isolated, by individually powering all the way
That is module 120 is powered the first power supply unit 111 in order to control, due to the work electricity of IGBT driving board 210 and IGBT module 220
Pressure is also different in most cases, can be respectively that IGBT drives by the second power supply unit 112 and the 3rd power supply unit 113 therefore
Movable plate 210 and IGBT module 220 are powered.
In one embodiment of the utility model, the 3rd power supply unit 113 can include sequentially connected mains supply 1, contact
Device 3 and direct-current switch power supply 4, as shown in figure 9, the output terminal of direct-current switch power supply 4 is connected with IGBT module 220, control module
120 are connected with contactor 3.
Mains supply 1 for providing alternating current, alternating current through direct-current switch power supply 4 be converted to IGBT module 220 work it is required
Voltage.By setting contactor 3, control module can be passed through in 1 abnormal electrical power supply of mains supply or unstable test circuit
120 control contactors 3 disconnect, cut-out IGBT module 220 and the connection of supply line, to ensure tested IGBT module 220
Safety.
In one embodiment of the utility model, circuit protecting switch 2 is also provided between mains supply 1 and contactor 3, such as
Shown in Fig. 9.By setting circuit protecting switch 2, the confession of mains supply 1 when mains supply 1 occurs abnormal, can be directly cut off
Electricity ensures the safety of entire test circuit.
In the utility model embodiment, test system can also include the power supply being connected on 1 output terminal of mains supply police
Show lamp 190, as shown in Figure 9.Real-time monitoring to 1 state of mains supply is realized by power warning lamp 190.
In the utility model embodiment, test system can also include display module 123, display module 123 and control mould
Block 120 connects, as shown in Figure 10.
By setting display module 123, the output to control module 120 and the monitoring acquisition of control module 120 are realized
To information shown, provide more intuitive test data for tester.
In utility model embodiment, if test system include host computer 170, display module 123 can also be with it is upper
Machine 170 connects, and the information that the output and monitoring of control module 120 collect is by uploading to host computer 170, by host computer
170, which are output to display module 123, shows.Display module 123 can also be set between master control borad 121 and host computer 170, at this point,
It is communicated between host computer 170 and master control borad 121 by display module 123, the host computer 170 and master control borad of the two transmission
Interactive information between 121 may be displayed on display module 123.
In the utility model embodiment, IGBT power module 200 includes forming three-phase bridge by three IGBT modules 220 are in parallel
Circuit.
For the power module test system of more detailed description the utility model embodiment, with reference to specific embodiment
It is described in more detail.
Figure 11 shows the structure diagram of the power module test system in this specific embodiment, and Figure 12 shows power
The circuit diagram of the major loop part of module test system.As shown in Figure 11, in this specific embodiment, direct current supply module
110 be the DC voltage provided by mains-supplied after voltage conversion.Control module 120 includes master control borad 121 and from controller
122, master control borad 121 is connected with host computer 170, and display module 123 employs liquid crystal display realization.Master control borad 121, from controller
122 and liquid crystal display operating voltage be 24V DC power supplies.Load shown in Figure 11 is the indicator light H1-H6 shown in Figure 12
With resistance R1-R6.
IGBT power module 200 to be tested includes three IGBT modules 220 in parallel, as shown in Figure 12, three
The composition three phase bridge circuit of IGBT module 220, the first current sensor 230 respectively A1, A2 and A3 of three IGBT modules 220,
Three current sensors are respectively acquired the three-phase current of 220 exchange side of IGBT module.The work electricity of IGBT driving board 210
It presses as 15V DC power supplies.Voltage on the dc bus of IGBT module 220 is 24V DC power supplies, the electricity of the supply line part
Road protection switch 2 is switch F1, and contactor 3 is contactor K1, and Switching Power Supply 4 is 24V Switching Power Supply T1, and alternating current is opened via 24V
To dc bus, the anode DC+ of dc bus is connected to IGBT module 220 by electrode line for output after powered-down source is converted
The collector of upper bridge arm, the cathode DC- of dc bus are connected to the emitter of the lower bridge arm of IGBT module 220 by negative line.
DC side Support Capacitor is additionally provided between the positive and negative anodes of dc bus.In this specific embodiment, the second current sensor 160 is
A4, voltage sensor V1, three IGBT modules 220 are each built-in with NTC temperature sensors 240 (not shown in Figure 12).
Power module test system in this specific embodiment can be divided into major loop and control loop two parts.Its
In, major loop includes switch F1, contactor K1,24V Switching Power Supply T1, load, socket U2, power warning lamp U3, voltage sensor
Device V1 and current sensor A4.Control loop include 24V power supplys, 15V power supplys, master control borad 121, interface board 180, from controller
122nd, liquid crystal display and host computer 170.Wherein, socket U2 can be used as stand-by power supply, and host computer 170 can also directly be plugged on this
On socket, socket U2 is the power supply of host computer 170.
110 Fen Wei of direct current supply module, tri- tunnels in this specific embodiment, 24V power supplys are interface board 180, master control borad all the way
121 and liquid crystal display power supply, all the way 15V power supplys powered by interface board 180 for IGBT driving board 210, interface board 180 passes through winding displacement
It is to provide 24V power supplies from controller 122, another way 24V power supplys are by dc bus with being attached from controller 122
IGBT module 220 is powered.A, B, C three-phase temperature, the three-phase alternating current of IGBT module 220 are gathered from controller 122, is led to simultaneously
Cross winding displacement with IGBT driving board 210 to be connected, complete the transmission of drive signal, from controller 122 by optical fiber and master control borad 121 into
Row communication, transmission voltage, electric current, temperature and drive signal.Master control borad 121 can be carried out with liquid crystal display by 485 communication interfaces
Communication, voltage, electric current, temperature are transmitted to liquid crystal display and shown.Master control borad 121 completes the pulse width of IGBT module 220
The generation of (PWM) signal, that is, drive signal is modulated, and passes through control and PWM drive signal is applied to from controller 122 needs to control
The upper bridge arm and/or lower bridge arm of the IGBT module 220 of system.Liquid crystal display can be led to by 485 communication interfaces and host computer 170
The information received from master control borad 121 is uploaded to host computer 170 by news, liquid crystal display.
The operation principle of the power test module of this specific embodiment is：In the upper and lower bridge arm point of IGBT power module 200
An indicator light and resistance not in parallel, when only applying the DC voltage of 24V to dc bus, IGBT shut-offs, LED instructions
Lamp H1, H2, H3, H4, H5, H6 send faint light.When the IGBT to upper bridge arm applies a drive signal, upper bridge arm
Conducting, indicator light H1, H3, H5 and R1, R3, R5 of upper bridge arm are short-circuited, and all drop is referring to the 24V voltages applied on dc bus
Show lamp H2, H4, H6 and R2, on R4, R6, H2, H4, H6 send light, while by A1, A2 and A3 distinguish detection resistance R2, R4,
Whether the electric current flowed through on R6 is normal to detect current sensor A1, A2 and A3 work.Control loop completes IGBT module 220
DC voltage current detecting, the temperature detection etc. of ac-side current detection and IGBT module 220.
The power module test system that the utility model embodiment provides is examined by the light on and off of indicator light and bright degree
It surveys IGBT and whether driving is intact；The wiring of the current sensor of IGBT module is detected by the registration of the first current sensor
And whether sensor is intact；NTC inside IGBT module is judged by the monitoring to the NTC temperature sensors built in IGBT module
Whether temperature sensor is intact.Further, it is also possible to it shows to verify master control borad by the brightness of indicator light, temperature display and electric current
Whether sent normally by the PWM drive signal issued from controller, you can to carry out whether control module is normally verified.
The utility model can be realized in other specific forms, without departing from its spirit and essential characteristics.Therefore, currently
Embodiment be all counted as being exemplary rather than in all respects it is limited, the scope of the utility model by appended right will
Ask rather than foregoing description definition, also, fall into claim meaning and equivalent in the range of it is whole change so as to all by
It is included among the scope of the utility model.
Claims (10)
1. a kind of power module test system, for insulated gate bipolar transistor IGBT power module (200) to be tested
It is tested, the IGBT power module (200) includes IGBT driving board (210), IGBT module (220) and the first current sense
Device (230), which is characterized in that the test system includes direct current supply module (110), control module (120), indicator light
(130) and resistance (140), the control module (120), for controlling whether to issue driving to the IGBT driving board (210)
Whether normally signal, the indicator light (130) are used to indicate the IGBT module (220), the resistance (140), for detecting
Whether the first current sensor (230) is normal；
The direct current supply module (110) respectively with the control module (120), the IGBT driving board (210), the IGBT
Module (220) and first current sensor (230) connection, the control module (120) respectively with the IGBT driving board
(210) output terminal with first current sensor (230) connects, and institute is parallel to after two indicator light (130) series connection
It stating in IGBT module (220), one in two indicator lights (130) is in parallel with the upper bridge arm of the IGBT module (220),
Another is in parallel with the lower bridge arm of the IGBT module (220)；
First current sensor (230) is connected to by sampling line on the upper bridge arm and the connecting line of the lower bridge arm,
The resistance (140) be connected to it is described sampling line and the upper bridge arm IGBT collectors between and it is described sampling line with
Between the IGBT emitters of the lower bridge arm.
2. test system according to claim 1, which is characterized in that the direct current supply module (110) and the IGBT
Negative temperature coefficient NTC temperature sensors (240) connection built in module (220), the control module (120) and the NTC temperature
The output terminal connection of sensor (240) is spent, the electric signal for being exported according to the NTC temperature sensors (240) judges institute
Whether normal state NTC temperature sensors (240).
3. test system according to claim 1, which is characterized in that the test system, which further includes, is connected to the IGBT
The second current sensor (150) on the dc bus electrode line of module (220) and/or, be connected to the IGBT module
(220) voltage sensor (160) between the positive and negative polar curve of dc bus；
The direct current supply module (110) be connected with second current sensor (150) and/or, the direct current supply module
(110) it is connected with the voltage sensor (160)；
The control module (120) be connected with the output terminal of second current sensor (150) and/or, the control module
(120) output terminal with the voltage sensor (160) is connected.
4. test system according to claim 1, which is characterized in that the control module (120) includes master control borad
(121), the test system further includes host computer (170), the master control borad (121), for according to the host computer (170)
Control instruction controls whether to issue the drive signal, the input terminal of the master control borad (121) to the IGBT driving board (210)
It is connected with the host computer (170), the output terminal of the master control borad (121) is connected with the IGBT driving board (210).
5. test system according to claim 4, which is characterized in that the control module (120) is further included from controller
(122), it is described to be used to the drive signal that the master control borad (121) issues being sent to the IGBT from controller (122)
Driving plate (210), the master control borad (121) are connected by described from controller (122) with the IGBT driving board (210).
6. test system according to claim 5, which is characterized in that the test system further include be used to implement power supply every
From interface board (180), the direct current supply module (110) is by the interface board (180) respectively with described from controller
(122) connected with the IGBT driving board (210).
7. test system according to claim 4, which is characterized in that the test system further includes to show test knot
The display module (123) of fruit, the display module (123) is connected with the control module (120), alternatively, the display module
(123) it is connected with the host computer (170), alternatively, the master control borad (121) passes through display module (123) and the host computer
(170) connect.
8. test system according to claim 1, which is characterized in that the direct current supply module (110) include with it is described
The first power supply unit (111) of control module (120) connection, the second power supply unit being connected with the IGBT driving board (210)
(112) and with the IGBT module (220) the 3rd power supply unit (113) being connected.
9. test system according to claim 8, which is characterized in that the 3rd power supply unit (113) includes connecting successively
Mains supply (1), contactor (3) and the direct-current switch power supply (4) connect, the output terminal of the direct-current switch power supply (4) with it is described
IGBT module (220) connects, and the control module (120) is connected with the contactor (3).
10. test system according to any one of claim 1 to 9, which is characterized in that the IGBT power module
(200) include forming three phase bridge circuit by three IGBT modules (220) are in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398583.3U CN207408507U (en) | 2017-10-26 | 2017-10-26 | power module test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398583.3U CN207408507U (en) | 2017-10-26 | 2017-10-26 | power module test system |
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| Publication Number | Publication Date |
|---|---|
| CN207408507U true CN207408507U (en) | 2018-05-25 |
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ID=62407939
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835407A (en) * | 2020-06-24 | 2021-12-24 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Detection device and method for safety state of electric drive system and vehicle |
| CN114047422A (en) * | 2021-11-20 | 2022-02-15 | 重庆虎溪电机工业有限责任公司 | Aluminum substrate detection device |
| CN115166407A (en) * | 2022-09-06 | 2022-10-11 | 广东汇芯半导体有限公司 | Test circuit and tester applying same |
| EP4145160A1 (en) * | 2021-09-06 | 2023-03-08 | ALSTOM Holdings | Device for checking the operation of a power module |
| CN116184151A (en) * | 2023-02-16 | 2023-05-30 | 中节能风力发电股份有限公司 | IGBT switching characteristic test system and test method thereof |
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2017
- 2017-10-26 CN CN201721398583.3U patent/CN207408507U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835407A (en) * | 2020-06-24 | 2021-12-24 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Detection device and method for safety state of electric drive system and vehicle |
| EP4145160A1 (en) * | 2021-09-06 | 2023-03-08 | ALSTOM Holdings | Device for checking the operation of a power module |
| FR3126784A1 (en) * | 2021-09-06 | 2023-03-10 | Alstom Transport Technologies | Device for checking the operation of a power module |
| CN114047422A (en) * | 2021-11-20 | 2022-02-15 | 重庆虎溪电机工业有限责任公司 | Aluminum substrate detection device |
| CN115166407A (en) * | 2022-09-06 | 2022-10-11 | 广东汇芯半导体有限公司 | Test circuit and tester applying same |
| CN116184151A (en) * | 2023-02-16 | 2023-05-30 | 中节能风力发电股份有限公司 | IGBT switching characteristic test system and test method thereof |
| CN116184151B (en) * | 2023-02-16 | 2024-01-02 | 中节能风力发电股份有限公司 | IGBT switching characteristic test system and test method thereof |
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Inventor after: Ren Lina Inventor after: Wang Tiegang Inventor after: Zuo Jinfeng Inventor before: Ren Lina Inventor before: Wang Tie Inventor before: Zuo Jinfeng |