Test system of air compressor of fuel cell
阅读说明：本技术 燃料电池的空压机的测试系统 (Test system of air compressor of fuel cell ) 是由 王兵 林业发 吴炎花 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种燃料电池的空压机的测试系统,包括空压机的前端管路、控制系统、传感器组和若干执行元件；控制系统包括工控机和NI控制器；前端管路的结构与空压机工作于车用燃料电池系统中时的对应结构相同；传感器组用于检测测试系统中预设位置处的温度、压力和流量；工控机用于通过设定测试程序向NI控制器发送测试指令,NI控制器用于根据测试指令控制空压机以及执行元件执行动作以模拟空压机的工作工况,NI控制器还用于获取温度、压力和流量并进行处理,以得到空压机的测试数据。本发明提供的燃料电池的空压机的测试系统能够完整测试空压机的性能,能够灵活的变更测试方案,测试功能可进一步扩展和升级,能够满足不同工况的测试需求。(The invention discloses a test system of an air compressor of a fuel cell, which comprises a front-end pipeline of the air compressor, a control system, a sensor group and a plurality of execution elements, wherein the front-end pipeline of the air compressor is connected with the control system; the control system comprises an industrial personal computer and an NI controller; the structure of the front end pipeline is the same as the corresponding structure of the air compressor when the air compressor works in the vehicle fuel cell system; the sensor group is used for detecting the temperature, the pressure and the flow at a preset position in the test system; the industrial personal computer is used for sending a test instruction to the NI controller through a set test program, the NI controller is used for controlling the air compressor and the execution element to execute actions according to the test instruction so as to simulate the working condition of the air compressor, and the NI controller is also used for acquiring temperature, pressure and flow and processing the temperature, pressure and flow so as to obtain test data of the air compressor. The test system of the air compressor of the fuel cell can completely test the performance of the air compressor, can flexibly change a test scheme, can further expand and upgrade test functions, and can meet test requirements of different working conditions.)
1. A test system of an air compressor of a fuel cell comprises a front-end pipeline of the air compressor, a control system, a sensor group and a plurality of execution elements; the control system comprises an industrial personal computer and an NI controller; the structure of the front end pipeline is the same as the corresponding structure of the air compressor when the air compressor works in the vehicle fuel cell system;
the sensor group is used for detecting the temperature, the pressure and the flow at a preset position in the test system;
the industrial personal computer is used for sending a test instruction to the NI controller through a set test program, the NI controller is used for controlling the air compressor and the execution element to execute actions according to the test instruction so as to simulate the working condition of the air compressor, and the NI controller is further used for obtaining the temperature, the pressure and the flow and processing the temperature, the pressure and the flow so as to obtain the test data of the air compressor.
2. The system for testing an air compressor of a fuel cell according to claim 1, wherein the sensor set comprises a first temperature sensor and a first pressure sensor disposed at an air inlet of the air compressor, a second temperature sensor and a second pressure sensor disposed at an air outlet of the air compressor, a third temperature sensor and a third pressure sensor disposed at an water inlet of the air compressor, and a fourth temperature sensor and a fourth pressure sensor disposed at a water outlet of the air compressor.
3. The test system for the air compressor of the fuel cell according to claim 1 or 2, characterized in that the test system further comprises an intercooler and a first cooling system;
the first cooling system is used for cooling the intercooler;
the intercooler is used for cooling the gas exhausted by the air outlet pipeline of the air compressor;
the first cooling system includes a first water tank;
the sensor group further comprises a fifth temperature sensor and a fifth pressure sensor which are arranged at an air inlet of the intercooler, a sixth temperature sensor and a sixth pressure sensor which are arranged at an air outlet of the intercooler, a seventh temperature sensor and a seventh pressure sensor which are arranged at an water inlet of the intercooler, an eighth temperature sensor and an eighth pressure sensor which are arranged at a water outlet of the intercooler, and a ninth temperature sensor and a ninth pressure sensor which are arranged in the first water tank.
4. The system for testing the air compressor of the fuel cell as claimed in claim 3, wherein the front end pipeline comprises a filter, a vehicular flow meter and a first throttle valve which are fixedly connected in sequence;
the first throttle valve is fixedly connected with an air inlet pipeline of the air compressor;
the actuator includes a second throttle valve;
the sensor group further comprises an air flow meter;
the air flow meter is fixedly connected between the intercooler and the second throttle valve;
the NI controller is further used for adjusting the opening degrees of the first throttle valve and the second throttle valve according to the test instruction so as to simulate the working condition of the air compressor;
the NI controller is further configured to calibrate the data measured by the vehicular flow meter using the data measured by the air flow meter.
5. The test system for an air compressor of a fuel cell according to claim 4, wherein the test system further comprises a silencer;
the silencer is arranged at one end of the second throttle valve opposite to the air outlet pipeline.
6. The test system for an air compressor of a fuel cell according to claim 4, further comprising a second cooling system;
the second cooling system is used for cooling the air compressor;
the second cooling system comprises a second water tank and a water flow meter;
the sensor group further comprises a tenth temperature sensor and a tenth pressure sensor which are arranged in the second water tank;
the water flow meter is used for collecting the flow of water flowing through a pipeline in the second cooling system and feeding the flow back to the NI controller.
7. The system for testing the air compressor of the fuel cell as claimed in claim 6, wherein the second water tank is a temperature-controlled water tank;
the actuating element further comprises a flow regulating valve, a first heat dissipation water pump, a first radiator, a second heat dissipation water pump, a second radiator and a heater;
the heater is arranged in the temperature control water tank;
the first heat dissipation water pump and the first radiator are arranged in a pipeline of the first cooling system;
the flow regulating valve, the second heat dissipation water pump and the second radiator are arranged in a pipeline of the second cooling system;
the flow regulating valve is used for controlling the flow rate of water flowing through the pipeline of the second cooling system.
8. The test system for an air compressor of a fuel cell according to claim 1, further comprising a structure switching system;
the structure conversion system comprises a twisting table, and an air inlet pipeline of the air compressor is aligned with an air outlet pipeline of the air compressor and is fixedly connected with the air outlet pipeline of the air compressor by adjusting the angle of the twisting table.
9. The test system for an air compressor of a fuel cell according to claim 1,
the NI controller comprises a data acquisition module, and the data acquisition module is used for acquiring the temperature, the pressure and the flow; the NI controller is in communication connection with the execution element through a CAN bus; the industrial personal computer is in communication connection with the data acquisition module through a PCI bus;
and the industrial personal computer sets the test program through a human-computer interaction interface of the LabVIEW.
10. The test system for an air compressor of a fuel cell according to claim 9, wherein the test system further comprises an output terminal;
the NI controller is further used for outputting the test data to the output terminal and/or the human-computer interaction interface.
Technical Field
The invention belongs to the field of fuel cells, and particularly relates to a test system of an air compressor of a fuel cell.
Background
The air compressor is an important component on the vehicle fuel cell system, and the performance of the air compressor directly determines the output stability and the service life of the fuel cell system, so that the air compressor can be applied to the vehicle fuel cell system only after the performance of the air compressor is qualified by a performance test on a test system. On one hand, the air compressor testing system must have a complete testing process and can be tested under manual or automatic working conditions; the test scheme can be flexibly changed to meet the test requirements of different working condition environments. On the other hand, the test system not only needs to have high reliability, but also needs to have higher control accuracy, and needs to have higher acquisition accuracy in the aspects of temperature and pressure detection, flow control, data acquisition and output and the like, so that the purposes of detecting and calibrating the air compressor can be achieved.
In addition, the existing vehicle-mounted system is used for measuring the volume of a vehicle flowmeter used for measuring the flow of the air compressor in order to save space, has the problem of low measurement precision, and can have certain errors when being directly used for the vehicle-mounted system.
At present, no technical standard of an air compressor testing system exists in the market industry, each enterprise is designed and manufactured according to own experience, parameters are in a confidential state, and testing processes, acquisition and detection precision are different; some of the control methods also use the control of the original logic circuit, and the control methods are lagged behind. The existing air compressor testing system has single function and narrow application range, and is difficult to meet the requirements of various air compressor performance tests and type selection tests.
Disclosure of Invention
The invention aims to overcome the defects that the test system of the air compressor in the prior art is single in test function, cannot meet the test requirements of different working conditions, is narrow in application range, needs to be improved in test reliability and control precision, and is difficult to meet the test requirements of various air compressor types.
The invention solves the technical problems through the following technical scheme:
the invention provides a test system of an air compressor of a fuel cell, which comprises a front-end pipeline of the air compressor, a control system, a sensor group and a plurality of execution elements, wherein the front-end pipeline of the air compressor is connected with the control system; the control system comprises an industrial personal computer and an NI controller; the structure of the front end pipeline is the same as the corresponding structure of the air compressor when the air compressor works in the vehicle fuel cell system;
the sensor group is used for detecting the temperature, the pressure and the flow at a preset position in the test system;
the industrial personal computer is used for sending a test instruction to an NI (National Instruments, National Instruments and Co., Ltd.) controller through a set test program, the NI controller is used for controlling the air compressor and the execution element to execute actions according to the test instruction so as to simulate the working condition of the air compressor, and the NI controller is also used for acquiring the temperature, the pressure and the flow and processing the temperature, the pressure and the flow so as to obtain the test data of the air compressor.
In the scheme, the control system takes an NI controller as a core, performs integral operation through an industrial personal computer, edits the operation working condition of the air compressor through a set test program in the industrial personal computer according to the requirement of a client, transmits the edited working condition to the NI controller in the form of a test instruction, and controls each execution element in the test system to act through the NI controller; the sensors and the flow collecting devices in the sensor group transmit collected data back to the NI controller, the NI controller analyzes and processes the data to finally obtain test data of the air compressor, and the test data comprises air compressor flow, air compressor inlet and outlet temperature, air compressor inlet and outlet pressure, air compressor rotating speed and the like. According to the obtained test data, the parameters and the like of the air compressor can be further calibrated so as to judge whether the data parameters provided by a manufacturer are accurate or not and judge whether the air compressor meets the use requirement of the vehicle fuel cell system or not.
By setting various test programs, the performance of the air compressor can be completely tested, the test scheme can be flexibly changed, the test function can be further expanded and upgraded, and the test requirements of different working conditions can be met; through setting up the same front end pipeline structure when using with the air compressor machine installation on the car, the actual state of complete simulation air compressor machine when the component system, output accurate air compressor machine performance data.
Preferably, the sensor group including set up in the first temperature sensor and the first pressure sensor of the air inlet of air compressor machine, set up in the second temperature sensor and the second pressure sensor of the gas outlet of air compressor machine, set up in the third temperature sensor and the third pressure sensor of the water inlet of air compressor machine, set up in the fourth temperature sensor and the fourth pressure sensor of the delivery port of air compressor machine.
In this scheme, set up the sensor in the gas circuit and the water route port of air compressor machine, so set up temperature and pressure that can accurate objective detection air compressor machine gas circuit and water route, make its work under the temperature pressure state that is fit for, further can prevent that conditions such as overtemperature, excessive pressure from taking place.
Preferably, the test system further comprises an intercooler and a first cooling system;
the first cooling system is used for cooling the intercooler;
the intercooler is used for cooling the gas exhausted by the air outlet pipeline of the air compressor;
the first cooling system includes a first water tank;
the sensor group further comprises a fifth temperature sensor and a fifth pressure sensor which are arranged at an air inlet of the intercooler, a sixth temperature sensor and a sixth pressure sensor which are arranged at an air outlet of the intercooler, a seventh temperature sensor and a seventh pressure sensor which are arranged at an water inlet of the intercooler, an eighth temperature sensor and an eighth pressure sensor which are arranged at a water outlet of the intercooler, and a ninth temperature sensor and a ninth pressure sensor which are arranged in the first water tank.
In this scheme, add the intercooler to the higher condition of air compressor machine during operation temperature for the air outlet pipe way combustion gas of air compressor machine cools off, in order to alleviate the load of air compressor machine, the intercooler has also set up special cooling system simultaneously. Further, through add the sensor to intercooler and first water tank among the cooling system, can acquire the temperature and the pressure data of more gas circuits, water route, water tank, can further improve the control accuracy of test data and the reliability of test result.
Preferably, the front end pipeline comprises a filter, a vehicular flowmeter and a first throttle valve which are fixedly connected in sequence;
the first throttle valve is fixedly connected with an air inlet pipeline of the air compressor;
the actuator includes a second throttle valve;
the sensor group further comprises an air flow meter;
the air flow meter is fixedly connected between the intercooler and the second throttle valve;
the NI controller is further used for adjusting the opening degrees of the first throttle valve and the second throttle valve according to the test instruction so as to simulate the working condition of the air compressor;
the NI controller is further configured to calibrate the data measured by the vehicular flow meter using the data measured by the air flow meter.
Because the automobile-used flowmeter is arranged in the vehicle-mounted system, so require small in size, the not high problem of precision when can having the measurement air compressor machine flow, if directly be used for the vehicle-mounted system can have certain error, the influence is to the judgement of air compressor machine flow condition. In the scheme, the high-precision air flow meter with the precision less than or equal to +/-0.25% FS (full scale) is adopted to measure the flow meter for the standard vehicle, so that the precision is improved, and the requirement of a vehicle-mounted system is met.
Preferably, the test system further comprises a silencer;
the silencer is arranged at one end of the second throttle valve opposite to the air outlet pipeline.
In this scheme, the muffler sets up in the end of test system pipeline, can effectively reduce the noise that produces in the testing process.
Preferably, the test system further comprises a second cooling system;
the second cooling system is used for cooling the air compressor;
the second cooling system comprises a second water tank and a water flow meter;
the sensor group further comprises a tenth temperature sensor and a tenth pressure sensor which are arranged in the second water tank;
the water flow meter is used for collecting the flow of water flowing through a pipeline in the second cooling system and feeding the flow back to the NI controller.
In this scheme, adopt to add temperature and pressure sensor in the cooling system's of air compressor machine water tank to further gather test data, also gather the flow data of the water in the pipeline of second cooling system simultaneously, these data can feed back to the NI controller, supply its analysis and comparison, and output final air compressor machine's test data. In this scheme, sensor and flowmeter arrange comprehensively extensively, can detect the temperature and the pressure of control gas circuit, water route, water tank, make its work under the temperature pressure state that is fit for, prevent that conditions such as overtemperature, excessive pressure from taking place.
Preferably, the second water tank is a temperature control water tank;
the actuating element further comprises a flow regulating valve, a first heat dissipation water pump, a first radiator, a second heat dissipation water pump, a second radiator and a heater;
the heater is arranged in the temperature control water tank;
the first heat dissipation water pump and the first radiator are arranged in a pipeline of the first cooling system;
the flow regulating valve, the second heat dissipation water pump and the second radiator are arranged in a pipeline of the second cooling system;
the flow regulating valve is used for controlling the flow rate of water flowing through the pipeline of the second cooling system.
In the scheme, cooling water enters the air compressor through the water flow meter and the flow regulating valve after being pressurized by the self-radiating water pump, takes away heat of the cooling water to cool the air compressor, radiates the heat of the cooling water through the radiator, then returns to the temperature control water tank, and enters the next cycle; through the temperature, pressure, flow that the sensor gathered, the NI controller can control the water pump discharge capacity, control air compressor machine business turn over water temperature. Specifically, when detecting that the temperature of the cooling water of the air compressor is too high, the NI controller increases the rotating speed of the water pump, outputs more water flow to cool the water pump, reduces the temperature of the water pump and enables the water pump to be stable and controllable.
Preferably, the test system further comprises a structure conversion system;
the structure conversion system comprises a twisting table, and an air inlet pipeline of the air compressor is aligned with an air outlet pipeline of the air compressor and is fixedly connected with the air outlet pipeline of the air compressor by adjusting the angle of the twisting table.
In this scheme, adjust according to the air compressor machine appearance structure of selecting and turn round the platform angle, make the air compressor machine air inlet pipeline and go out the gas pipeline and adjust well and connect fixedly, prepare for the test system operation. The structure conversion system in the scheme can test the air compressors in various angle air inlet modes, the performance of the air compressors can be completely tested, the actual state of the air compressors when the air compressors form a system is completely simulated, accurate performance data of the air compressors are output, and the requirement of the type selection test of various air compressors is met.
Preferably, the NI controller comprises a data acquisition module for acquiring the temperature, the pressure and the flow; the NI Controller is in communication connection with the execution element through a CAN (Controller Area Network) bus; the industrial personal computer is in communication connection with the data acquisition module through a PCI (Peripheral component interconnect) bus;
the industrial personal computer sets the test program through a human-computer interaction interface of LabVIEW (graphical programming environment).
In the scheme, the industrial personal computer can set the parameters of the air compressor through software programming to calibrate the parameters, and can program the testing steps of the air compressor according to the testing working condition; and data can be monitored in real time, recorded and early-warning and alarming in the test process. An air compressor testing program is set in a LabVIEW human-computer interaction interface, LabVIEW software sends an instruction to an NI controller, and the NI controller controls the action execution of each execution element. The temperature sensor, the pressure sensor and the flow data are transmitted to the data acquisition module, and then the data can be further fed back to LabVIEW software for analysis and comparison, if the data are in a qualified range, the next step is carried out, and if the data are out of the range, an alarm is given or the operation is stopped.
In this scheme, adopt industrial computer and NI controller combination, adopt modularization extensible platform, can respond to and support the graphical programming of LabVIEW, program according to every air compressor machine concrete requirement and operating condition, satisfy multiple air compressor machine test demand.
Preferably, the test system further comprises an output terminal;
the NI controller is further used for outputting the test data to the output terminal and/or the human-computer interaction interface.
In the scheme, the test data can be output to a human-computer interaction interface or an independent output terminal for subsequent further analysis and use, or can be output to only one of the human-computer interaction interface and the independent output terminal.
The positive progress effects of the invention are as follows: according to the test system of the air compressor of the fuel cell, provided by the invention, the industrial personal computer and the NI controller are combined, the modular extensible platform is adopted, the NI controller is taken as a core, the industrial personal computer is used for carrying out integral operation, various test programs are set, the performance of the air compressor can be completely tested, the test scheme can be flexibly changed, the test function can be further expanded and upgraded, and the test requirements of different working conditions can be met; through setting up the same front end pipeline structure when installing on automobile-used fuel cell system with the air compressor machine and using, the actual state of complete simulation air compressor machine when the component system, output accurate air compressor machine performance data. The invention realizes the test requirements of various air compressors, can meet the development requirements of 0-80kw (kilowatt) fuel cell systems, and provides the air compressor testing device of the fuel cell, which has comprehensive functions and higher integration level.
Drawings
Fig. 1 is a block diagram illustrating a control system in a test system for an air compressor of a fuel cell according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an air system in a test system of an air compressor of a fuel cell according to a preferred embodiment of the invention.
Fig. 3 is a schematic structural diagram of a first cooling system in a test system of an air compressor of a fuel cell according to a preferred embodiment of the invention.
Fig. 4 is a schematic structural diagram of a second cooling system in a test system of an air compressor of a fuel cell according to a preferred embodiment of the invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
The embodiment provides a test system of an air compressor of a fuel cell, which comprises a structure conversion system, a front end pipeline of the air compressor, a control system, a sensor group, an intercooler, a first cooling system, a second cooling system, a silencer, an output terminal and a plurality of execution elements. The front end pipeline comprises a filter, a vehicular flowmeter and a first throttle valve which are fixedly connected in sequence, and the first throttle valve is fixedly connected with an air inlet pipeline of the air compressor. The actuating element comprises a first throttle valve, a second throttle valve, a flow regulating valve, a first heat dissipation water pump, a first radiator, a second heat dissipation water pump, a second radiator and a heater. The first cooling system comprises a first water tank; the second cooling system includes a second water tank and a water flow meter. The second water tank is a temperature control water tank, and the heater is arranged in the temperature control water tank. The first heat dissipation water pump and the first radiator are arranged in a pipeline of the first cooling system; the flow regulating valve, the second heat dissipation water pump and the second radiator are arranged in a pipeline of the second cooling system. The silencer is arranged at one end of the second throttle valve opposite to the air outlet pipeline.
In this embodiment, the sensor group is used to detect the temperature, pressure and flow at a plurality of preset positions in the test system. The sensor group comprises a first temperature sensor and a first pressure sensor which are arranged at an air inlet of the air compressor, a second temperature sensor and a second pressure sensor which are arranged at an air outlet of the air compressor, a third temperature sensor and a third pressure sensor which are arranged at a water inlet of the air compressor, a fourth temperature sensor and a fourth pressure sensor which are arranged at a water outlet of the air compressor, a fifth temperature sensor and a fifth pressure sensor which are arranged at an air inlet of the intercooler, a sixth temperature sensor and a sixth pressure sensor which are arranged at an air outlet of the intercooler, a seventh temperature sensor and a seventh pressure sensor which are arranged at a water inlet of the intercooler, an eighth temperature sensor and an eighth pressure sensor which are arranged at a water outlet of the intercooler, a ninth temperature sensor and a ninth pressure sensor which are arranged in the first water tank, a tenth temperature sensor and a tenth pressure sensor which are arranged in the second water tank, And the air flow meter is fixedly connected between the intercooler and the second throttle valve.
As shown in fig. 1, the control system includes a high-voltage power module, a low-voltage power module (not shown in the figure), an industrial personal computer and an NI controller, wherein the NI controller is implemented by an NI card, and specifically includes a data acquisition module and a CAN interface; the NI controller is in communication connection with each execution element through a CAN bus; the industrial personal computer is in communication connection with the data acquisition module through a PCI bus. The data acquisition module is used for acquiring temperature, pressure and flow data acquired by the sensor group. The high-voltage power supply module and the low-voltage power supply module are connected with a test bench in the structure conversion system through cables and provide high-voltage and low-voltage power supplies for the test system, wherein the high-voltage power supply module supplies power for the air compressor, and other devices supply power with the low-voltage power supply module.
In this embodiment, the structure of the front end pipeline is the same as the structure of the corresponding front end pipeline when the air compressor works in the vehicle fuel cell system, and is used for reproducing the pipeline state when the air compressor is used, so as to simulate the working condition when the air compressor works.
In this embodiment, as shown in fig. 2, the following devices constitute an air system, and specifically include a
In this embodiment, sensor and flowmeter arrange comprehensively extensively, can detect the temperature and the pressure of control gas circuit, water route, water tank, make its work under the temperature pressure state that is fit for, prevent that conditions such as overtemperature, excessive pressure from taking place.
In this embodiment, structure conversion system still includes test bench, slip table connecting piece, mounting etc. in addition including turning round the platform, and concrete connection has multiple implementation, can set up according to actual need, and this embodiment does not limit this. The air inlet pipeline of the air compressor and the air outlet pipeline of the air compressor are aligned with and fixedly connected with corresponding interface pipelines or devices by adjusting the angle of the twisting table. And adjusting the angle of the torsion table according to the selected shape structure of the air compressor, aligning and connecting and fixing the air inlet pipeline and the air outlet pipeline of the air compressor, and preparing for the operation of a test system. The structure conversion system can test the air compressors in various angle air inlet modes in the embodiment, the performance of the air compressors can be completely tested, the actual state of the air compressors in the system forming process is completely simulated, accurate performance data of the air compressors are output, and the requirement of the type selection test of various air compressors is met.
In this embodiment, the first cooling system is used to cool the intercooler. The second cooling system is used for cooling the air compressor. The intercooler is responsible for cooling down air compressor outlet temperature, specifically is used for cooling down the gas of air outlet pipeline exhaust of air compressor.
In this embodiment, the operation principle of the air system is as follows: air reaches a
In addition, the
The calibration process is referred to as follows, and the test can be started after the front-end pipeline is connected, and the data is recorded by the steps referred to as follows: the rotating speed of the air compressor is 1000r/min (revolution/minute), and the voltage value of the vehicle flowmeter and the flow value of the air flowmeter are recorded; the rotating speed of the air compressor is 2000r/min, and the voltage value of the vehicular flowmeter and the flow value of the air flowmeter are recorded; … …, respectively; recording the voltage value of a vehicle flowmeter and the flow value of an air flowmeter when the rotating speed of the air compressor is 10000 r/min; according to formula conversion provided by a vehicle flowmeter supplier, the voltage value represents the flow value at the rotating speed by drawing a curve, so that the accuracy of the vehicle flowmeter is improved.
In this embodiment, the operation principle of the second cooling system is referred to as follows: the cooling water is pressurized by the second heat
In this embodiment, the operation principle of the first cooling system is as follows: the cooling water enters the first heat dissipation water pump 9 from the first water tank 10, enters the
In this embodiment, the industrial personal computer is configured to set a test program through a human-computer interaction interface of the LabVIEW to send a test instruction to the NI controller, the NI controller is configured to control the air compressor and the execution element to perform an action according to the test instruction to simulate a working condition of the air compressor, and the NI controller is further configured to obtain temperature, pressure, and flow rate and process the temperature, pressure, and flow rate to obtain test data of the air compressor. The NI controller is also used to output the test data to an output terminal and/or a human machine interface.
In the embodiment, the test system integrally operates through the industrial personal computer, the operating condition of the air compressor is edited in the operating condition editing module of the human-computer interaction interface according to the requirements of customers, and the edited operating condition is transmitted to the NI controller and controls the action of each execution element; the NI controller is provided with a data processing module, and the data processing module is used for processing the acquired data and outputting the processed data to an output terminal or a human-computer interaction interface for observation and analysis.
The test system of the air compressor of the fuel cell provided by the embodiment can test air compressors of various structures in the market, and meets the requirements of system development; the operation is simpler and more convenient, and the system assembling workload is reduced. The invention takes the NI controller as the core, adopts an integrated and multifunctional modular design, realizes the acquisition, analysis, control and output of system data through software programming, meets the test requirement of the air compressor of the vehicle fuel cell system, and is more advanced and complete than the common scheme. The invention adopts an expandable and upgradable design scheme and is suitable for different fuel cell systems.
According to the test system of the air compressor of the fuel cell, provided by the invention, the industrial personal computer and the NI controller are combined, the modular extensible platform is adopted, the NI controller is taken as a core, the industrial personal computer is used for carrying out integral operation, various test programs are set, the performance of the air compressor can be completely tested, the test scheme can be flexibly changed, the test function can be further expanded and upgraded, and the test requirements of different working conditions can be met; through setting up the same front end pipeline structure when installing on automobile-used fuel cell system with the air compressor machine and using, the actual state of complete simulation air compressor machine when the component system, output accurate air compressor machine performance data. The invention realizes the test requirements of various air compressors, can meet the development requirements of 0-80kw (kilowatt) fuel cell systems, and provides the air compressor testing device of the fuel cell, which has comprehensive functions and higher integration level.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
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