CN213957488U - Power module simulation test system and new energy automobile's test system - Google Patents
Power module simulation test system and new energy automobile's test system Download PDFInfo
- Publication number
- CN213957488U CN213957488U CN202022484995.7U CN202022484995U CN213957488U CN 213957488 U CN213957488 U CN 213957488U CN 202022484995 U CN202022484995 U CN 202022484995U CN 213957488 U CN213957488 U CN 213957488U
- Authority
- CN
- China
- Prior art keywords
- power module
- power
- test system
- control
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model provides a power module test system and new energy automobile owner drive power unit test system, power module simulation test system includes industry control host computer, power control subassembly and power inductance load at least, can pass through power inductance load simulation motor load test, and provide electric power and control signal for the power module through the power control subassembly, thereby can not rely on motor test rack (dynamometer machine) completely, do not rely on motor control algorithm, independently to the main drive and the power module of power module, carry out electrical performance design, thermal performance design, limit design and test and aassessment, can save motor test rack (dynamometer machine) from test system composition like this, save cost such as expensive high-speed motor and dynamometer machine system, the input cost is little, it is big to have solved rack system input, use inconvenient, Difficult maintenance, large energy consumption and the like.
Description
Technical Field
The utility model relates to a power module test technical field, in particular to power module simulation test system and new energy automobile's test system.
Background
Global energy and environmental systems face huge challenges, and a traditional automobile needs to be revolutionarily changed as a large household for petroleum consumption and carbon dioxide emission, and a consensus is formed in the current global development of new energy automobiles, wherein the new energy automobiles have fewer engines and start-stop systems than traditional fuel automobiles and weak hybrid automobiles, but have more batteries, motors, electric control core components, and power electronic devices such as vehicle-mounted DC-DC, electric air conditioner driving and vehicle-mounted chargers (OBC), which convert electric energy stored by power batteries into electric energy required by driving motors, vehicle-mounted low-voltage electric equipment and air conditioner motors, and the realization of the functions is independent of power modules capable of realizing electric energy conversion and control. Generally, a power module of a new energy automobile comprises a main driver and a power module, wherein the power module comprises at least one power switch tube, such as an IGBT or a SiC-MOSFET, and the main driver is connected with a gate of each power switch tube in the power module to drive each power switch tube to be turned on or off, so as to realize the operation of the power module. From the present, the development of new energy vehicles around the world is faced with some common problems, such as breakthrough of key technology, which is important for design, test and verification evaluation of power modules (mainly the main driver and power modules).
At present, most of testing methods for a main driver and a power module of a power module are realized by combining a motor control algorithm through a motor testing rack (dynamometer) no matter a driver manufacturer, a power module manufacturer or a whole vehicle manufacturer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power module simulation test system and new energy automobile's test system can save motor test rack (dynamometer machine), reduces test cost.
In order to achieve the above object, the utility model provides a power module simulation test system for carry out the simulation test to the power module, wherein, power module simulation test system includes:
the power control assembly is connected with the power module and used for providing power and control signals for the power module and collecting and transmitting corresponding test data of the power module;
the power inductive load is connected with the power module and used for simulating the motor load;
and the industrial control host is connected with the power control assembly and used for controlling the output of the power control assembly and receiving and analyzing the test data returned by the power control assembly so as to obtain the corresponding performance of the power module.
Optionally, the power inductive load comprises at least one inductor connected to the power module.
Optionally, the power module simulation test system further includes a temperature control component, connected to the power module and the industrial control host, and configured to simulate a cooling environment actually provided to the power module under the control of the industrial control host.
Optionally, the temperature control assembly includes a temperature controller, a flow pump and a liquid storage tank, the temperature controller and the flow pump are all in two-way communication connection with the industrial control host, cooling liquid is stored in the liquid storage tank, the flow pump is communicated with the liquid storage tank through a water pipe and is used for controlling and feeding back the inlet and outlet flow of the cooling liquid in the liquid storage tank under the control of the industrial control host, and the temperature controller is used for controlling and feeding back the temperature of the cooling liquid in the liquid storage tank under the control of the industrial control host.
Optionally, the temperature controller is a heater capable of heating the liquid in the liquid storage tank, or a refrigerator capable of cooling the liquid in the liquid storage tank, or a heating and refrigerating circulator capable of heating and refrigerating the liquid in the liquid storage tank.
Optionally, the industrial control host has a human-computer interface for human-computer interaction, and the human-computer interface is configured to receive and display control commands provided to the industrial control host, the temperature control component, and the power control component, and display corresponding test data acquired and returned by the power control component and an analysis result of the industrial control host on the test data.
Optionally, the power control component includes a signal collector, a signal generator, and a dc power supply; the signal collector is connected with the industrial control host and the power module and feeds back at least one of the voltage, the current and the temperature of the power module to the industrial control host; the signal generator is connected with the industrial control host and the power module to generate a control signal for controlling the power module to work according to a corresponding instruction of the industrial control host; the direct current power supply provides power for the power module.
Optionally, the signal generator is an SVPWM pulse generator, and the control signal is an SVPWM pulse signal.
Optionally, the power module simulation test system further includes a safety cabinet, the power module is installed in the safety cabinet, and a protection component is further disposed in the safety cabinet, and the protection component is connected to the power control component and the power module, and provides protection in the test process.
Optionally, the protection component comprises at least one of a contactor, a buffer module, a discharge module, a DC-Link capacitor, and a Link busbar, the DC power source is connected to the power module through a DC busbar, wherein,
the contactor is arranged between the direct current power supply and the power module and controls the connection or disconnection of the direct current power supply and the power module;
the discharging module is connected to the direct current bus and used for discharging;
the buffer module is connected with the direct current bus and the DC-Link capacitor and used for limiting current and preventing the DC-Link capacitor from being charged and discharged rapidly;
the DC-Link capacitor is connected with the power module and the direct current bus and used for filtering and stabilizing voltage;
the Link busbar is connected with the power module, the DC-Link capacitor and the direct current power supply and used for providing stable voltage for the power module.
Optionally, the functional module includes a power module and a main driver, the power module includes at least one power switching tube, and the main driver is connected to the control end of each power switching tube in the power module to drive the power switching tube to be turned on or off, so as to implement the operation of the power module.
Optionally, the power switch tube is an IGBT or a SiC-MOSFET.
Based on same utility model conceive, the utility model discloses still provide a new energy automobile's test system, include the power module simulation test system, just power module simulation test system connects new energy automobile's power module, and right the power module simulates the test.
Compared with the prior art, the technical scheme of the utility model one of following beneficial effect has at least:
1. the power module simulation test system at least comprises an industrial control host, a power control assembly and a power inductive load, can simulate motor load test through the power inductive load (hollow inductor) and provide power and control signals for the power module through the power control assembly, thereby completely independently designing electrical performance, designing thermal performance, designing limits and testing and evaluating the power module (including a main driver and a power module which is driven by the main driver and mainly formed by connecting an IGBT (insulated gate bipolar transistor) and/or a SiC-MOSFET) independently without depending on a motor test bench (dynamometer) and a motor control algorithm Large energy consumption and the like.
2. The power module simulation test system can realize large-span power test on the power module, is not influenced by the power of a synchronous motor or an asynchronous induction alternating current motor, is easy to operate, is convenient and quick to test, and has very close test results to those of a motor test bench.
3. The power module simulation test system is relatively simple to build, low in maintenance cost, fast, cost-saving, low in power grid requirement and relatively high in test accuracy.
4. Because the motor load test can be simulated through the power inductive load (hollow inductor), the reactive current circulation can be adopted, the energy is saved, and the direct current power supply only needs to be configured with about 1/6 of rated current (if the proportion is smaller according to the peak value) during the output, so that the energy is obviously saved.
Drawings
Fig. 1 is a schematic block diagram of a system of a power module simulation test system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a connection between a dc power supply and a power module of a protection module in a power module simulation test system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a power module simulation test system according to an embodiment of the present invention.
Detailed Description
The technical solution provided by the present invention will be further described in detail with reference to fig. 1 to 3 and the specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a power module simulation test system, which can perform a simulation test on a power module 1 of a new energy vehicle and other products, where the power module includes a power module 12 and a main driver 11, the power module 12 may include at least one power switch tube, the power switch tube may be an IGBT or a SiC-MOSFET, and the main driver 11 connects a gate of each power switch tube in the power module 12 to drive the power switch tube to be turned on or turned off, so as to implement the work of the power module 12.
Referring to fig. 1, the power module simulation test system of the present embodiment includes an industrial control host 2, a power control module 3, a power inductive load 4, a temperature control module 5, and a printer 6.
The industrial control host 2 is used as a brain of the whole power module simulation test system, can control the programmed operation of the power control assembly 3, the temperature control assembly 5 and the printer 6, and simultaneously performs data analysis on related data returned by the power control assembly 3, so that all parts of the power module simulation test system operate according to set working conditions. And the functions of operation alarm such as overvoltage, overcurrent, overtemperature and the like can be realized according to the data analysis result. In this embodiment, the industrial personal computer 2 may be any suitable control device such as a desktop computer and a notebook computer, which provides display of the human-computer interface 21 and realizes human-computer interaction with related testers, and specifically, the industrial personal computer 2 may automatically generate visual information (for example, corresponding curves, charts, reports and the like) from various parameters (such as current, voltage, temperature rise and the like) of the actual operation of the power module 1 and various parameters (such as water temperature, temperature rise, flow and the like) of the temperature control component 5, and display the visual information in the human-computer interface 21 for the related testers to check; the industrial personal computer 2 can also receive the control command of the related tester through the human-computer interface 21, so as to realize good human-computer interaction. As an example, after a relevant tester inputs a corresponding control instruction through the human-machine interface 21 according to a test requirement, the industrial control host 2 sends a corresponding control instruction to the power control module 3 and the temperature control module 5 according to the input control instruction, so that the power control module 3 controls the power module 1 to work to simulate an actual working condition, and further controls the power control module 3 to perform relevant test data acquisition on a real-time operating state of the power module 1 and return the acquired test data, where the test data includes parameters such as temperature rise, water temperature, current, voltage, and the like, and the industrial control host 2 further performs corresponding data analysis on the test data received from the power control module 3, and automatically outputs an analysis result as a corresponding curve, graph, report, and the like for the relevant tester to use.
That is, the human-computer interface 21 is mainly used for implementing human-computer interaction between the industrial control host 2 and related testers, and specifically is used for receiving and displaying control commands of the testers to the industrial control host 2, the temperature control component 5 and the power control component 3, and displaying to the testers that the power control component 3 collects and returns corresponding test data, and analysis results of the industrial control host 2 on the test data, and the like.
The power inductive load 4 comprises at least one inductor (also called as hollow inductor) connected with the power module 12, the power inductive load 4 and the power module 12 in the power module 1 can form a loop, the power control assembly 3 can enable reactive large current to run between the loops, working conditions of products during actual working are simulated, and then various electrical performance parameters and thermal performance tests of the power module 1 are achieved. That is, the power inductive load 4 is able to run large reactive currents in a manner that simulates a motor load.
The temperature control component 5 has the functions of heating and temperature control, and can simulate the cooling environment actually provided for the power module 1 so as to cool and dissipate the power module 12 and the like in the power module 1. The temperature control assembly 5 of this embodiment is a water-cooling temperature control system, which includes a liquid storage tank 51, a temperature controller 52 and a flow pump 53, wherein the liquid storage tank 51 stores a cooling liquid formed by mixing 50% of water and 50% of ethylene glycol, and in other embodiments, the cooling liquid may be water or other liquid. The flow pump 53 is communicated with the liquid storage tank 51 through a water pipe and is in bidirectional communication connection with the industrial control host machine 2 so as to control the inlet and outlet flow of the cooling liquid in the liquid storage tank 51 and feed back the inlet and outlet flow of the cooling liquid in the liquid storage tank 51 to the industrial control host machine 2. The temperature controller 52 is connected with the industrial personal computer 2 in a two-way communication manner, and is configured to control the temperature of the cooling liquid in the liquid storage tank 51 under the control of the industrial personal computer 2, and feed back the temperature of the cooling liquid in the liquid storage tank 51 to the industrial personal computer 2, and the temperature controller 52 may be a heater, and may heat the cooling liquid in the liquid storage tank 51, or may be a heating and cooling circulator, and may heat and cool the liquid in the liquid storage tank 51. In other embodiments of the present invention, when the liquid stored in the liquid storage tank 51 is high temperature liquid, the temperature controller 52 may also be a refrigerator, which can cool down the liquid in the liquid storage tank 51.
In this embodiment, industrial control host computer 2 can change RS485 communication lines through USB and link to each other with temperature controller 52, flow pump 53 respectively, can make relevant tester can set up temperature and flow in the temperature control component 5 through human-computer interface 21 from this, and then make industrial control host computer 2 can be according to tester's control, come control temperature controller 52 to heat the coolant liquid in the liquid reserve tank 51, and control flow pump 53 supplements or releases the coolant liquid in the liquid reserve tank 51, and then control temperature control component 5's liquid circulation flow, thereby simulate out the true cooling method of power module 1. Because the temperature of the cooling liquid in the liquid storage tank 51 can be set, and the liquid circulation flow in the temperature control assembly 5 can be set, namely the water temperature of the temperature control assembly 5 is adjustable, and the flow rate is adjustable, the cooling mode (or called as cooling condition and cooling environment) of the power module 1 can be simulated according to the requirements of main drivers of different main driver manufacturers and different vehicle types when products such as new energy vehicles actually run.
The power control component 3 is connected with a main driver 11 and a power module 12 in the power module 1, and is mainly used for energy supply, controlling the working state of the power module 1 and relevant test data acquisition and the like.
In this embodiment, the power control component 3 includes a signal collector 31, a signal generator 32, and a dc power supply 33.
The voltage of the dc power supply 33 is designed according to specific product performance, and can provide power to the power inductive load 4, the main driver 11, and the power module 12. The direct current power supply 33 is communicated with the industrial control host 2 through an RS485 communication line or a CAN communication line, and related testers CAN set working parameters of the direct current power supply 33 through the human-computer interface 21 on the industrial control host 2, so that the working conversion state of the power module 12 under the driving of the main driver 11 when products such as a new energy automobile and the like operate normally is simulated. Optionally, the dc power supply 33 has multiple protection functions such as over-temperature protection, over-current protection, and over-voltage protection, and may also have constant-voltage CV and constant-current CC operation modes. The dc power supply 33 is also connected to the power module 1 via a dc bus (not shown) to supply power to the power module 1.
The signal collector 31 is connected with the industrial control host 2 and the power module 1, and feeds back at least one of the voltage, the current and the temperature of the power module 1 to the industrial control host 2. The signal collector 1 includes at least one of a temperature sensor, a voltage sensor, a current sensor and an oscilloscope. As an example, the signal collector 31 is an oscilloscope, and is capable of monitoring the voltage and current states of the power module 1 during operation in real time, and transmitting the voltage and current data back to the industrial control host 2 in real time, the industrial control host 2 performs comprehensive analysis on the waveform of the oscilloscope and other test data, and generates a corresponding curve, chart or report, and the like, so as to display the curve, chart or report on the human-computer interface 21, the industrial control host 2 may initiate a read command to the oscilloscope, and the oscilloscope transmits the collected voltage and current data back to the industrial control host 2 after receiving the read command.
The signal generator 32 is connected to the industrial personal computer 2 and the main driver 11 of the power module 1, the signal generator 32 can generate a control signal for controlling the main driver 11 to operate according to a corresponding instruction (for example, a pulse generation instruction) of the industrial personal computer 2, and the main driver 11 outputs a driving signal for driving the power module 12 to operate under the control of the control signal.
In this embodiment, the signal generator 32 is an SVPWM pulse generator, which is a special signal generator, and is specifically designed and developed according to a TriCore/Aurix processor that is consistent with a main drive motor controller for a mainstream vehicle. When the power module 12 is formed by connecting N (where N is greater than or equal to 1) power switching tubes (which may be IGBTs or SiC-MOSFETs), the SVPWM pulse generator outputs N paths of PWM waves (i.e., N paths of SVPWM pulse signals shown in fig. 1) under the control of the industrial control host 2 to respectively control the main driver 11 to respectively drive the N power switching tubes, and a reactive current circulation is implemented in a loop formed by the power inductive load 4 and the power module 12, so that the dc power supply 33 is configured, and only the current generated by the dc power supply 33 needs to be 1/6 of the rated current, thereby saving more energy. As an example, according to the requirements of the main driver 11 of the new energy automobile and the whole automobile factory, as shown in fig. 2, when the power module 12 in the power module 1 is formed by connecting 6 IGBTs, the industrial control host 2 controls the CAN communication card of the USB interface to connect with the SVPWM pulse generator, so that the industrial control host 2 outputs 6 paths of PWM waves (i.e., 6 paths of SVPWM pulse signals shown in fig. 1), so as to respectively control the main driver 11 in the power module 1 to drive the 6 IGBTs, simulate the operation condition of the new energy automobile, and implement reactive current circulation in the loop formed by the power inductive load 4 and the power module 12, so that when the dc power supply 33 is configured, only the current generated by the dc power supply 33 needs to be about 1/6 of the rated current (the proportion is smaller if the current is the peak value), and energy CAN be saved. Therefore, the operation of a three-phase inverter of the new energy automobile is simulated through an SVPWM control technology, the motor load is simulated through the power inductive load 4, the temperature rise, the electrical performance, the thermal performance and the like of the power module 12 under specific working conditions (switching frequency, fundamental frequency, current and the like) and specific cooling system parameters (water temperature, flow rate) are tested in real time, the electrical performance and the thermal performance of the power module 1 are verified, the working conditions of the power module 12 are determined, and a basis is provided for the use of the power module 1 in an actual system.
As an example, the tester may adjust the following parameters of the signal generator 32 through the human-machine interface 21 of the industrial control host 2:
(1) output dead time: the adjusting range is 0.0-10.0 mus, the adjusting step length is 0.1 mus;
(2) carrier frequency (coarse and fine): the adjusting range is 1 kHz-20 kHz, and the adjusting step length is 1 Hz;
(3) fundamental frequency (coarse and fine tuning): the adjusting range is 1 Hz-1 kHz, and the adjusting step length is 0.1Hz (below 10 Hz) or 2.5Hz (above 10 Hz).
The power control component 3 is matched with the industrial control host 2, the power inductive load 4 and the temperature control component 5 to test the electrical performance and the thermal performance of the power module 1 and realize a data recording function, and recorded data comprise three-phase current, three-phase voltage, temperature (or temperature rise) and operation condition information (such as bus voltage, switching frequency, fundamental frequency, cooling water temperature, water circulation flow and the like) of the power module 1.
The power module simulation test system of this embodiment, through power inductive load 4 simulation motor load to through power control module 3 and industrial control host 2, power inductive load 4, the cooperation of temperature control component 5, can exert settlement electric current, voltage to power module 1, and carry out SVPWM control according to the operating condition of the product that power module 1 corresponds, carry out temperature rise test, electrical property test, limit test, verify power module 1's electrical property and thermal design situation (promptly thermal behavior) and limit ability. From this, can not rely on motor test rack (dynamometer machine), do not rely on motor control algorithm, the independence tests power module, can save motor test rack (dynamometer machine) from test system composition like this, saves costsly such as expensive high-speed motor and dynamometer machine, and can realize the test power of large-span, does not receive the influence of synchronous machine or asynchronous induction alternating current motor power, and the test is convenient, swift, and the result of testing with adopting motor test rack is very close. The system is relatively simple to build, low in maintenance cost, fast, cost-saving, low in power grid requirement and relatively high in test accuracy.
Referring to fig. 2, since the dc power supply 33 and the power module 1 are connected by the dc bus, in order to realize a safer and more reliable test for the power module, the power module simulation test system according to an embodiment of the present invention builds a related protection component between the dc power supply 33 and the power module 1. Specifically, the protection component includes at least one of a contactor 71, a discharging module 72, a buffer module 73, a DC-Link capacitor 74, and a Link busbar 75. The type of each protection component needs to be matched with the dc power supply 33, for example, when the dc power supply 33 is a high-voltage dc power supply, the contactor 71, the discharging module 72, and the buffering module 73 all select a high-voltage type. The functions of the individual protection components are as follows:
the contactor 71 is arranged between the direct current power supply 33 and the power module 1, and is used for controlling connection or disconnection between the direct current power supply 33 and the power module 1, so as to play an additional protection role.
The discharging module 72 is connected to the dc bus (not shown) for discharging, and specifically, after the dc power supply 33 is powered off, the discharging module 72 can safely and quickly consume the power on the dc bus to lower the voltage on the dc bus to a safe voltage.
The buffer module 73 is connected to the DC bus and the DC-Link capacitor 74 for limiting current and preventing the DC-Link capacitor from being charged and discharged rapidly. Specifically, the buffer module 73 can play a role of current limiting at the power-on instant and the power-off instant, so as to prevent rapid charging and discharging of the DC-Link capacitor 74 on the DC bus, and reduce the influence of rapid discharging on the DC power supply 33 at the time of the double pulse test.
The DC-Link capacitor 74 is a DC support capacitor, which may be a thin film capacitor, and connects the power module 1 and the DC bus, and is used for balancing capacitance capacity inside the power module 1, and playing roles of filtering, voltage stabilization and DC support.
And a Link bus bar 75 for linking the main driver 11, the power module 12, the DC-Link capacitor 74, the DC power supply 33, and the like to provide a stable voltage to the power module 1. The link busbar 75 is also called a laminated busbar, a composite busbar, a laminated busbar and a composite copper bar, is a multilayer composite structure connecting bar, is a highway of a power distribution system, and can provide a modern power distribution system which is easy to design, quick to install and clear in structure by using the link busbar 75 compared with a traditional, heavy, time-consuming and troublesome wiring method. The Link busbar 75 can be connected to the main driver 11, the power module 12, the DC-Link capacitor 74, the DC power supply 33, and the like through related accessories such as screws and nuts.
Please refer to fig. 1 to 3, in order to facilitate the safety of the handling, installation and test of the power module simulation test system of the present invention, in an embodiment of the present invention, the power module simulation test system further includes a control cabinet 3 'and a safety cabinet 7, the power control module 3 is installed in the control cabinet 3', the safety cabinet 7 is installed with various protection modules and the power module 1, the safety cabinet 7 can be called as a safety box, which can prevent the situation that the casing of the power module in the power module 1 is exploded to hurt the tester in the test of the power module 1, and prevent the situation that the tester accidentally electrocutes in the test process of the power module 1. The control cabinet 3' can prevent the condition that the tester accidentally electrocutes in the test process of power module 1. At this moment, the power module simulation test system connected with the power module 1 is mainly divided into 6 parts in appearance: industrial control host computer 1, switch board 3', safety cabinet 7, printer 6, temperature control component 5, power inductive load 4.
The process of testing the power module 1 by using the power module simulation test system comprises the following steps:
firstly, according to a system schematic block diagram shown in fig. 3, the industrial control host 2, the control cabinet 3', the safety cabinet 7, the printer 6, the temperature control component 5 and the power inductive load 4 are connected by hardware;
then, the power supply of the industrial personal computer 2, the control cabinet 3 ', the safety cabinet 7, the temperature control component 5 and the printer 6 is turned on to start the related components in the industrial personal computer 2, the control cabinet 3 ', the related components in the safety cabinet 7, the printer 6 and the temperature control component 5, the parameters of the temperature control component 5 are set through the human-computer interface of the industrial personal computer 2 and the water circulation is started, the control parameters of the power control component 3 in the control cabinet 3 ' and the working voltage and current parameters of the power module 1 in the safety cabinet 7 are set, the signal generator 32 in the power control component 3 is started to start testing, the current sensor and the like in the power control component 3 monitor the related parameter data of the power module 1 to obtain corresponding test data, the industrial personal computer 2 reads the corresponding test data and automatically performs data analysis on the test data, analysis results such as a report form and the like are generated and displayed on the human-computer interface thereof, the tester further prints the analysis results such as a report form through the printer 6 as required.
Please refer to fig. 1 to fig. 3, based on the same utility model, an embodiment of the present invention further provides a new energy automobile testing system, including the power module simulation testing system, just the power module simulation testing system connects the new energy automobile's power module, and right the power module 1 carries out the simulation test.
The new energy automobile's of this embodiment test system, owing to adopt power module simulation test system, its test cost is by greatly reduced consequently.
The above description is only for the description of the preferred embodiments of the present invention, and not for any limitation of the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure all belong to the scope of the technical solution of the present invention.
Claims (13)
1. A power module simulation test system for performing simulation test on a power module, the power module simulation test system comprising:
the power control assembly is connected with the power module and used for providing power and control signals for the power module and collecting and transmitting corresponding test data of the power module;
the power inductive load is connected with the power module and used for simulating the motor load;
and the industrial control host is connected with the power control assembly and used for controlling the output of the power control assembly and receiving and analyzing the test data returned by the power control assembly so as to obtain the corresponding performance of the power module.
2. The power module simulation test system of claim 1 wherein the power inductive load comprises at least one inductor coupled to the power module.
3. The power module simulation test system of claim 1, further comprising a temperature control assembly coupled to the power module and the industrial host computer for simulating a cooling environment actually provided to the power module under control of the industrial host computer.
4. The power module simulation test system according to claim 3, wherein the temperature control assembly comprises a temperature controller, a flow pump and a liquid storage tank, the temperature controller and the flow pump are both connected to the industrial control host in a two-way communication manner, the liquid storage tank stores cooling liquid, the flow pump is communicated with the liquid storage tank through a water pipe and used for controlling and feeding back the flow rate of the cooling liquid in the liquid storage tank under the control of the industrial control host, and the temperature controller is used for controlling and feeding back the temperature of the cooling liquid in the liquid storage tank under the control of the industrial control host.
5. The power module simulation test system according to claim 4, wherein the temperature controller is a heater capable of heating the liquid in the liquid storage tank, or a refrigerator capable of cooling the liquid in the liquid storage tank, or a heating and cooling circulator capable of heating and cooling the liquid in the liquid storage tank.
6. The power module simulation test system of claim 3, wherein the industrial personal computer has a human-machine interface for human-machine interaction, and the human-machine interface is configured to receive and display the control commands provided to the industrial personal computer, the temperature control module, and the power control module, and display the corresponding test data collected and returned by the power control module and the analysis result of the industrial personal computer on the test data.
7. The power module simulation test system of any of claims 1-6, wherein the power control component comprises a signal collector, a signal generator, and a DC power supply; the signal collector is connected with the industrial control host and the power module and feeds back at least one of the voltage, the current and the temperature of the power module to the industrial control host; the signal generator is connected with the industrial control host and the power module to generate a control signal for controlling the power module to work according to a corresponding instruction of the industrial control host; the direct current power supply provides power for the power module.
8. The power module simulation test system of claim 7 wherein the signal generator is an SVPWM pulse generator and the control signal is an SVPWM pulse signal.
9. The power module simulation test system of claim 7, further comprising a safety cabinet, wherein the power module is installed in the safety cabinet, and a protection component is further disposed in the safety cabinet, and the protection component connects the power control component and the power module and provides protection during the test process.
10. The power module simulation test system of claim 9, wherein the protection component comprises at least one of a contactor, a snubber module, a discharge module, a DC-Link capacitor, and a Link busbar, the DC power source connecting the power modules through a DC busbar, wherein,
the contactor is arranged between the direct current power supply and the power module and controls the connection or disconnection of the direct current power supply and the power module;
the discharging module is connected to the direct current bus and used for discharging;
the buffer module is connected with the direct current bus and the DC-Link capacitor and used for limiting current;
the DC-Link capacitor is connected with the power module and the direct current bus and used for filtering and stabilizing voltage;
the Link busbar is connected with the power module, the DC-Link capacitor and the direct current power supply and used for providing stable voltage for the power module.
11. The power module simulation test system according to claim 1, wherein the power module includes a power module and a main driver, the power module includes at least one power switch, and the main driver is connected to the control terminal of each power switch in the power module to drive the power switch to be turned on or off, so as to implement the operation of the power module.
12. The power module simulation test system of claim 11, wherein the power switching tubes are IGBTs or SiC-MOSFETs.
13. A test system of a new energy automobile, characterized by comprising the power module simulation test system of any one of claims 1-12, wherein the power module simulation test system is connected with a power module of the new energy automobile and performs simulation test on the power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022484995.7U CN213957488U (en) | 2020-10-30 | 2020-10-30 | Power module simulation test system and new energy automobile's test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022484995.7U CN213957488U (en) | 2020-10-30 | 2020-10-30 | Power module simulation test system and new energy automobile's test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213957488U true CN213957488U (en) | 2021-08-13 |
Family
ID=77206229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022484995.7U Active CN213957488U (en) | 2020-10-30 | 2020-10-30 | Power module simulation test system and new energy automobile's test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213957488U (en) |
-
2020
- 2020-10-30 CN CN202022484995.7U patent/CN213957488U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203149092U (en) | Extended range type testing stand | |
| CN101639514B (en) | Detecting device for detecting IGBT | |
| CN207487981U (en) | A kind of P2 frameworks hybrid power bench test device | |
| CN101587345A (en) | Function test system for controller used in hybrid electric or electric vehicle | |
| CN102621408B (en) | Test system and test method of general converter product | |
| CN207908945U (en) | A kind of wind power pitch-controlled system supply voltage monitoring relay test-device | |
| CN209606581U (en) | A kind of energy-saving electrical machine band load pilot system | |
| CN202929167U (en) | Testing device for diagnosing and testing circuit board in electric drive device | |
| CN213957488U (en) | Power module simulation test system and new energy automobile's test system | |
| CN203465597U (en) | Test system of aircraft storage battery heating control system | |
| CN109283419B (en) | DC solid-state simulation load-based electric life test device for piezoelectric device | |
| CN115629330A (en) | Vehicle-mounted integrated power supply testing system and method | |
| CN201886091U (en) | Tester of frequency converter | |
| CN202837437U (en) | Test system for carrying out diagnostic test on power unit | |
| CN105954676A (en) | Servo motor testing system | |
| CN203310645U (en) | PTC heater test system based on CANoe | |
| CN116430191A (en) | Multi-mode aging detection test device for IGBT module with modularized design | |
| CN109541458A (en) | A kind of common DC bus type aircraft starting-generating system analogy method and device | |
| CN113466577A (en) | Universal test equipment for current transformer | |
| CN210071980U (en) | Inductive load for motor driver aging test | |
| CN113960400A (en) | High-voltage testing system of new energy automobile | |
| CN218122138U (en) | Low-voltage electronic test testing device of electric drive system controller | |
| CN212459988U (en) | Automatic testing arrangement of new energy automobile DCDC converter parameter | |
| CN109164384B (en) | Motor stator insulation aging test device and test method | |
| CN216411943U (en) | Test board for control panel of air conditioner inverter of railway passenger car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |