CN1601792B - Test and research system for fuel cell hybrid power system - Google Patents
Test and research system for fuel cell hybrid power system Download PDFInfo
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Abstract
Experimental investigation system of fuel cell hybrid power system includes loading system, experimental control system, hybrid power system and test system. The loading system simulates road condition, dynamics characteristics of car body, and drivers. Combining with operation conditions of each part in the system, the experimental control system converts each condition to control command for each part, controls and adjusts running condition. The hybrid power system is subject to the disclosed experimental investigation system investigates. The test system collects, monitors and records operation conditions of other three systems. The invention carries out experimental investigation functions of testing and checking fuel cell hybrid power system, that traditional testing system for internal combustion engine does not perform. Thus, the invention possesses high innovation.
Description
Technical field
The present invention relates to a kind of fuel cell hybrid system test research system, this system is involved in the research and development field of the dynamical system integrated technology of fuel cell car.
Background technology
Fuel cell car is a kind of new-energy automobile, because it compares with traditional internal-combustion engine vehicle, having energy-saving and environmental protection and moving quiet good service behaviour becomes focus in the current young mobile research and development technology.Set up the sub-project of fuel-cell car and fuel battery city carriage in the great special project of country's " 15 " 863 electric automobiles specially, the research and development of fuel cell car have become the major action that promotes Domestic Automotive Industry realization great-leap-forward development.The integrated technology of fuel cell hybrid system is one of key technology in the fuel cell car research and development technology field.
The dynamical system of fuel cell car is the main sign that fuel cell car is different from other type of vehicle (internal-combustion engines vehicle, battery electric vehicle and hybrid power internal combustion engine automobile).In general, the dynamical system of fuel cell car mainly is made up of fuel cell, fuel battery engines, storage battery (or super capacitor), motor and electric machine controller and power converter (as DC/DC converter, DC/AC converter etc.).It can produce the explosive motor of pollutant emission when using the fuel battery engines of efficient (operating efficiency can reach more than 40%), cleaning (emission is clean water) to substitute the lower and work of efficient, and auxiliary energy storage device-storage battery (or super capacitor discharging and recharging, Deng), remedied that fuel battery engines peak power fan-out capability is poor, dynamic response is slow and can not have reclaimed defective such as braking energy.Therefore, such fuel cell hybrid system is widely regarded as one of desirable dynamical system pattern of following automobile.
The research and development of dynamical system occupy critical role in the system development of whole automobile, especially the R﹠D work of the dynamical system of new-energy automobile especially like this.The success or not of dynamical system R﹠D work, the quality of power system performance are directly connected to the quality of the vehicle performances such as power performance, economy, reliability, stability and riding comfort of finished car subsequently.The research and development of fuel cell hybrid system be a system, complicated, through the important engineering of whole fuel cell car R﹠D process.Similar with the R﹠D work of traditional automobile dynamic system, it should comprise the research and development based on emulation of the computer software usually, based on the research and development of test bench of power system and based on the research and development of system test car.When the R﹠D work of carrying out based on test bench of power system, at first must possess a kind of feasible practicality, function is complete, the dynamical system pilot system of function admirable, and this is just as the threst stand of using in traditional automobile research and development engineering.Traditional explosive motor test-bed is at internal combustion engine (diesel engine or gasoline engine etc.), and these targets are to be mechanical device.Therefore, the function of traditional explosive motor test-bed is only limited to the test examination to aspect service behaviours such as engine mechanical power, fuel consumes substantially.Yet, novel is the automobile in major impetus source with the fuel cell, its dynamical system all has obviously different with orthodox car in form with structure on the function, its dynamical system is based on electric and power electronic equipment, so the test-bed of conventional engines can not be directly used in the experimental study of fuel cell hybrid system, and must be at the characteristics of novel fuel cell car dynamical system, the testing stand of fuel cell hybrid system is built up in development.The present invention has just provided a kind of such pilot system, and it is based on, and the core AVL ac dynamometer of traditional engine dynamic test stand builds up.Because the time that the research and development work of domestic fuel cell car begins is not long, the relevant departments that specialize in this research work seldom, building up at home of this experimental study system initiated.This experimental study system builds up, for test and technical research and the Study on Technology such as dynamical system is integrated, control, performance optimization coupling of the parts in the hybrid power system for automobile driven by fuel cell technical research process provide important material conditions and technological means.This experimental study system has become requisite technical tool in the fuel cell car technical research process.Its invention is made significant and is worth.
Summary of the invention
The objective of the invention is for the experimental study system of a kind of fuel cell hybrid system is provided, it be can be used in the relevant various technical research work of fuel cell hybrid system; Be the design of fuel cell car dynamical system, structure, parameter optimization, material conditions that the carrying out of research work such as systematic function coupling provides necessary and complete technological means support.Be this experimental study system proposed by the invention, can be used in the fuel cell hybrid system each parts performance test and assist the exploitation of parts development technology; And it will can be used in tests examination and the system integration technology of hybrid power system is researched and developed the overall work performance of fuel cell hybrid system; In addition, it also must can be used in the development of system's control technology of hybrid power system.
In order to achieve the above object, the fuel cell hybrid system test research system that the present invention relates to can be divided into four subsystems: fuel cell hybrid system, fuel cell hybrid test macro, fuel cell hybrid experiment control system and fuel cell hybrid load system.This experimental study system has at first utilized original conventional engines dynamic test stand.Traditional engine dynamic test stand is based on AVL electric A.C. dynamometer system, and this system comprises hardware device and software equipment two parts.Hardware device is AVL electric A.C. dynamometer and its signals collecting and conditioning unit; Software section is the PUMA control system, utilizes this system to control and assist the operation of ac dynamometer, just can realize following function on this dynamometer system: driver's simulation, vehicle and road conditions simulation, driving circulating analog etc.The realization of these functions is most important for the performance of comprehensive assessment automotive power.More than, AVL electric A.C. dynamometer, PUMA control system and speed changer have constituted the load system of fuel cell hybrid.Yet, different and traditional internal-combustion engines vehicle be, the dynamical system of fuel cell car is electrically driven (operated) dynamical system, therefore, the cell hybrid power systematic research system that acts as a fuel must possess necessary power equipment.The pilot system that the present invention proposes has mainly comprised following power equipment: fuel cell analogue means, lead-acid batteries, super capacitor group, motor and electric machine controller, DC/DC converter and electrical power wiring and transducer cabinet etc.These equipment have been formed the main research object-fuel cell hybrid system of the experimental study system of the present invention's proposition.Fuel cell, storage battery, super capacitor, DC/DC converter, motor and electric machine controller, these parts all belong to the part of fuel cell hybrid system, they should be the experimental study object of fuel cell hybrid system test research system originally, but the experimental study system has comprised these equipment (or its analogue means) also.This is because when the some parts in the hybrid power system being made a service test research, must be present in the pilot system compatibility test as experimental condition and testing equipment by other necessary dynamical system parts.Therefore, the experimental study system of complete hybrid power system must comprise the device that can realize these dynamical system component functions.In addition, experimental study system also comprises a signal, data acquisition system and a hybrid power control system.Signal, data acquisition system are mainly used to the various useful semaphore in the acquisition test process, and to these signals handle, supervision and record.The main composition of this system comprises: various electrical quantity sensors, measuring equipment (power analyzer and torquemeter etc.) and signal condition unit and data monitoring register system.This system is called as the fuel cell hybrid test macro in the present invention.Hybrid power control system is equivalent to the VCU of fuel cell car, and it is based on, and dSPACE sets up.In the experimental study system, its on the one hand can formulate different dynamical system control strategies, to control strategy debug, work such as improvement; Concrete needs when it can also be according to independent parts experimental study are on the other hand formulated suitable test strategy, and process of the test is controlled.This system is called as the fuel cell hybrid experiment control system in the present invention.In the whole system system, the fuel cell hybrid system is normally as the object of experimental study.Yet when only to the some parts research experiment in the hybrid power system, remaining parts has just become the condition and the testing equipment of ancillary test research.Hybrid power system is unified and is bonded together by mechanical connection between the hybrid power load system; Generally speaking, the fuel cell hybrid system provides power, driving fuel cell hybrid power load system, and under the situation of braking energy feedback, energy flows to then opposite, provides energy by load system to the fuel cell hybrid system.By the fuel cell hybrid load system that AVL ac dynamometer and control system thereof are formed, not only realized simulation, and realized simulation driver's driving behavior to car and road load.Therefore, in the experimental study system, it also serves as the role of " driver ".It is all gathered the work state information of other three systems in the experimental study system.The fuel cell hybrid test macro is the important tool of research experiment.
The situation of each subsystem:
The fuel cell hybrid load system:
Mainly comprise speed changer, AVL dynamometer machine and PUMA control system.Speed changer links to each other by the meshing mechanical axis with the AVL dynamometer machine of mechanical axis and gear; The AVL dynamometer machine links to each other with the PUMA control system with the signals collecting line by various communications.Its function is mainly finished by AVL dynamometer machine and its control system PUMA control system.Loading moment (as the braking moment of dynamical system) on the PUMA control system control AVL dynamometer machine arbor; Simultaneously the PUMA system has realized driver's simulation, can givenly start, signals such as accelerator pedal, brake pedal, and these signals send to the dSPACE controller as the input signal of experiment control system.
The fuel cell hybrid experiment control system:
Mainly comprise control system host computer, dSPACE controller and CAN connection network.The control system host computer directly links to each other with the dSPACE controller by the Ethernet network interface; The dSPACE controller joins by CAN line and CAN connection network again.Form by control system host computer, dSPACE controller and 3 parts of CAN connection network.The control system host computer is equipped with Matlab and dSPACE/Controldesk software, is used for the dSPACE controller is programmed, and realizes the control strategy (or the test control strategy that need use during the unit test test) of dynamical system in program.The dSPACE controller is connected with the control system host computer by Ethernet interface, carries out transfer of data (download the program of host computer and show the operation conditions of dSPACE controller on the monitoring interface of host computer) by the Ethernet netting twine.During work, the control program that the operation of dSPACE controller is downloaded from host computer.By CAN connection network, the dSPACE controller sends work order to each parts of dynamical system on the one hand, on the one hand also through receiving the work state information that each parts of dynamical system return to controller.
The fuel cell hybrid system:
The output of fuel cell is connected (will link to each other with the DC/DC converter through after the power diode in the practical application) by the input of power line and DC/DC converter; Directly be connected by power line between the input of the output of storage battery and another DC/DC converter (for two-way DC/DC converter); The output of two DC/DC converters links together and links to each other with the input of electric machine controller simultaneously; The output of electric machine controller links to each other with the input electric interfaces of ac three-phase asynchronous motor.
The fuel cell hybrid test macro:
Transducer (or other measuring instrument) is installed on tested the dynamical system parts or its port, and transducer (or other measuring instrument) signal output part links to each other with the signal condition unit by data wire; Connect high-speed collection card after the signal condition unit; High-speed collection card is connected with the acquisition system computer by data-interface again.Various transducers (or other measuring instruments) are measured the various operating states of dynamical system and load system, at first pass through after the signal processing of signal condition unit as the measurement result of the output signal of these transducers (or other measuring instruments) output, all be converted into the analog signal of 0～10V, these analog signals are passed through the collection of high-speed collection card again, transform into digital signal and enter the acquisition system computer and be monitored and note.
To sum up, have following logical relation between 4 subsystems of this experimental study system: the fuel cell hybrid load system is simulated road conditions, vehicle body dynamic characteristic and driver, the role who takes on the load of dynamical system on the one hand, the role who also takes on " driver " on the other hand, it sends the driving intention signal of " driver " to experiment control system; The fuel cell hybrid experiment control system is the control maincenter of whole hybrid power system, it receives the driving intention signal (enabling signal, signal for faster, shift signal, brake signal, stop signal etc.) of " driver ", and convert thereof into control command at each parts in conjunction with the working condition of each parts in the dynamical system (mainly being the electric current of motor speed and torque, storage battery SOC and fuel cell and voltage etc.), to control and to adjust the operation conditions of whole dynamical system, make it satisfy the driving intention of " driver "; The fuel cell hybrid system is the experimental study object of this experimental study system, in this system, it is again the controlling object of fuel cell hybrid experiment control system, the control of the control system that is put to the test, in the course of work of simultaneity factor, it is again the drive system of fuel cell hybrid load system, between they the two is mechanical connection, the relation (when hybrid power system operated in braking energy feedback, energy flowed to the fuel cell hybrid system by the fuel cell hybrid load system) that has the two-way flow of mechanical energy; Between fuel cell hybrid test macro and other three subsystems collection of data, signal and running status and the relation of being gathered, its work just to the working condition of other three subsystems gather, supervision and record, and any influence can not take place the work of other three subsystems, other three subsystems do not receive any information there from the fuel cell hybrid test macro.Such logical relation makes this experimental study system possess integrality on the function between these four subsystem functions.
The experimental study function that the fuel cell hybrid system is tested examination that the present invention has realized that traditional explosive motor test macro can not finish has very high novelty.It possesses the test evaluation ability to the system dynamic of fuel cell hybrid system and system effectiveness, also can finish the test examination task to the component capabilities of single fuel cell hybrid system simultaneously.The present invention is lower than 0.8% to the test and the data acquisition error rate of various variablees in the course of the work, has reached enough certainties of measurement.In the use of reality, shown good performance.
Description of drawings
Fig. 1 is the systematic functional structrue block diagram of fuel cell hybrid system test research system.
Fig. 2 is the composition structure chart of fuel cell hybrid system test research system.
Fig. 3 is a hybrid power test principle block diagram.
Fig. 4 is a hybrid power experiment control system theory diagram.
Embodiment
With reference to accompanying drawing, will be described in detail specific embodiments of the present invention.
As Fig. 1, provided the systematic functional structrue figure of fuel cell hybrid system test research system.The whole system system can be divided into four subsystems: fuel cell hybrid system, fuel cell hybrid test macro, fuel cell hybrid experiment control system and fuel cell hybrid load system.The flow direction relation of the information interaction among the figure between each system of the direction indication of arrow.As shown in Figure 1, the control command of being made up of the various riding manipulation behaviors of " driver " (mainly being accelerator pedal signal, brake pedal signal etc.) is assigned to the fuel cell hybrid experiment control system.The fuel cell hybrid experiment control system is equivalent to the entire car controller (VCU) of fuel cell car, and this is a control system based on the CAN network.It receives the various control commands that come from " driver ", also receives the job information of each parts in the fuel cell hybrid system simultaneously by CAN; Experiment control system with reference to the work state information of each parts in the hybrid power system, comes the operation of fuel cell hybrid system is adjusted and controlled according to the control command of " driver " simultaneously.The function of fuel cell hybrid test macro is in the experimental study process, the working condition of each parts in the hybrid power system is measured, to coherent signal, the operational data of each parts gather, handle, monitoring and record.Assign to the fuel cell hybrid experiment control system by the control command (mainly being accelerator pedal signal, brake pedal signal etc.) that the various riding manipulation behaviors of " driver " are formed.The fuel cell hybrid experiment control system is equivalent to the entire car controller (VCU) of fuel cell car, and this is a control system based on the CAN network.It receives the various control commands that come from " driver ", also receives the job information of each parts in the fuel cell hybrid system simultaneously by CAN; Experiment control system with reference to the work state information of each parts in the hybrid power system, comes the operation of fuel cell hybrid system is adjusted and controlled according to the control command of " driver " simultaneously.The function of fuel cell hybrid test macro is in the experimental study process, the working condition of each parts in the hybrid power system is measured, to coherent signal, the operational data of each parts gather, handle, monitoring and record.
As Fig. 2, provided the composition structure of hybrid power experimental study system, at length represented the formation situation of experimental study system, the layout situation of various device in service system.As can be seen from the figure, in the load system, exist communication respectively between PUMA control system and AVL dynamometer machine and the dSPACE control system and be connected.On the one hand, in process of the test, the PUMA control system is connected the load simulation of having realized car and road with communication between the AVL dynamometer machine; On the other hand, driver's simulation that the PUMA control system realizes is able to dynamical system is played a role by the connection of the communication between PUMA control system and the dSPACE control system just.The dSPACE control system all has communication to be connected with major control parts in the hybrid power system, and this communication connects by the CAN network and realizes.The dSPACE controller is assigned control command by CAN to each parts of hybrid power system on the one hand; On the one hand, each power part returns work state information and various operational data by CAN to the dSPACE controller.The data-signal acquisition system is the main part of fuel cell hybrid test macro, it is gathered the job information of each parts in the dynamical system by various transducers or measuring instrument (power analyzer, torquemeter etc.), simultaneously it also by connection receive come from dSPACE control system and PUMA control system to researching and analysing the useful related data information of work.
Hybrid power test principle block diagram as shown in Figure 3, it has represented the composition structure of hybrid power test macro.As can be seen from the figure, this system comprises four parts: transducer or other measurement mechanism, signal condition unit, high-speed collection card and acquisition system computer.Various transducers mainly are distributed in the electrical power wiring of hybrid power system, also comprise a large amount of transducers in the AVL dynamometer system in addition, and they also are the parts of test macro.Measurement mechanism mainly is meant power analyzer and torquemeter.Power analyzer is used for the working condition of electric machine controller is tested, and gathers the various input/output signals of electric machine controller.Torquemeter is mainly used to measure the size of the torque of motor crankshaft output, with the experimental study work of auxiliary needle to motor.The signal condition unit is handled to be fit to the needs that capture card carries out data acquisition the signal that measures.The acquisition system computer can be monitored and stored record the data message that collects.
Hybrid power experiment control system theory diagram as shown in Figure 4, it has provided the composition structure of fuel cell hybrid experiment control system.This system comprises three parts: CAN network, dSPACE controller and control system host computer.The CAN network is the passage of dSPACE controller with information interaction between each parts of dynamical system.The dSPACE controller is equivalent to entire car controller, and it realizes a kind of control algolithm that hybrid power system is controlled.It receives and comes from the control command that the PUMA control system is sent, and also receives the job information of each parts in the fuel cell hybrid system by CAN; Then according to the control command of PUMA control system,,, send control command to each parts of hybrid power system according to this control algolithm simultaneously with reference to the work state information of each parts in the hybrid power system.The control system host computer is with carrying out information interaction between the dSPACE controller.By the control system host computer, can monitor the working condition of dSPACE control system, the working condition of CAN communication network and the parts working condition that each parts send by CAN on the one hand; Can adjust and revise the control algolithm of moving in the controller easily on the other hand, and when carrying out the testing experiment of single parts, can directly provide suitable control command according to the needs of test specification.
Claims (4)
1. a fuel cell hybrid system test research system is characterized in that, this fuel cell hybrid system test research system comprises
The fuel cell hybrid load system comprises AVL dynamometer machine, speed changer, torquemeter, PUMA control system;
The fuel cell hybrid system comprises fuel cell, two DC/DC converters, storage battery, electric machine controller, motor;
The fuel cell hybrid test macro comprises measurement mechanism and data-signal acquisition system;
The fuel cell hybrid experiment control system is the dSPACE control system;
AVL dynamometer machine in the fuel cell hybrid load system links to each other with electromechanics in the fuel cell hybrid system by speed changer, torquemeter;
DSPACE control system in PUMA control system in the fuel cell hybrid load system and described AVL dynamometer machine, the fuel cell hybrid experiment control system is electrically connected; DSPACE control system in the described fuel cell hybrid experiment control system is electrically connected fuel cell in the described fuel cell hybrid system, two DC/DC converters, electric machine controller by the Communication Control line;
Electric machine controller input, output in the fuel cell hybrid test macro in measurement mechanism and the fuel cell hybrid system are electrically connected by the data acquisition line;
Data-signal acquisition system in the fuel cell hybrid test macro respectively with the fuel cell hybrid test macro in measurement mechanism, the dSPACE control system in the torquemeter, PUMA control system, fuel cell hybrid experiment control system in the fuel cell hybrid load system, the fuel cell in the fuel cell hybrid system, two DC/DC converters, storage batterys be electrically connected by the data acquisition line;
Fuel cell, two DC/DC converters, storage battery, electric machine controller, motor electrical power wiring connect naturally in the fuel cell hybrid system.
2. a kind of fuel cell hybrid system test research according to claim 1 system is characterized in that described measurement mechanism is a power analyzer.
3. a kind of fuel cell hybrid system test research according to claim 1 system is characterized in that the fuel cell hybrid test macro comprises measurement mechanism, signal condition unit, high-speed collection card and acquisition system computer;
Measurement mechanism and signal condition unit, signal condition unit and high-speed collection card are electrically connected between high-speed collection card and the acquisition system computer.
4. according to the described a kind of fuel cell hybrid system test research of claim 1 system, it is characterized in that the fuel cell hybrid experiment control system comprises CAN network, dSPACE controller and control system host computer;
CAN network and dSPACE controller are electrically connected;
DSPACE controller and control system host computer are electrically connected.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006302629A (en) * | 2005-04-20 | 2006-11-02 | Hitachi Ltd | Fuel cell module and power generation system using it |
| CN101419129B (en) * | 2008-04-25 | 2010-06-02 | 奇瑞汽车股份有限公司 | Hybrid controller test system |
| CN102221463A (en) * | 2011-03-31 | 2011-10-19 | 中南大学 | Electromechanical coupling characteristic testing device for oil-electric hybrid power system |
| CN103645439A (en) * | 2013-12-25 | 2014-03-19 | 清华大学 | Experimental research system of electric automobile wheel-side motor driving system |
| CN104251725A (en) * | 2014-07-29 | 2014-12-31 | 浙江吉利罗佑发动机有限公司 | Constant-speed oil consumption testing method of non-plugin hybrid electric vehicle |
| CN104251726A (en) * | 2014-07-29 | 2014-12-31 | 浙江吉利罗佑发动机有限公司 | Energy consumption testing method of non-plugin hybrid vehicle |
| CN107957720A (en) * | 2016-10-17 | 2018-04-24 | 香港生产力促进局 | Automobile-used hybrid energy-storing control system based on dSPACE and motor experimental bench |
| CN110474069A (en) * | 2019-07-16 | 2019-11-19 | 武汉理工大学 | A kind of Fuel Cell Control System based on dSPACE |
| CN110667407B (en) * | 2019-10-25 | 2022-12-13 | 合肥工业大学 | Method for examining reliability condition of power unit of fuel cell passenger car |
| CN110993992B (en) * | 2019-11-22 | 2020-09-08 | 清华大学 | Method for generating universal characteristic diagram of fuel cell system |
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| US5736630A (en) * | 1997-02-11 | 1998-04-07 | Welner; Jerome M. | Slip friction measurement and recording apparatus |
| CN1199463A (en) * | 1995-09-12 | 1998-11-18 | 恩泰克科技公司 | Portable, self-contained data collection systems and methods |
| CN2625185Y (en) * | 2003-06-26 | 2004-07-14 | 武汉力兴测试设备有限公司 | Group battery module balancing unit of electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199463A (en) * | 1995-09-12 | 1998-11-18 | 恩泰克科技公司 | Portable, self-contained data collection systems and methods |
| US5736630A (en) * | 1997-02-11 | 1998-04-07 | Welner; Jerome M. | Slip friction measurement and recording apparatus |
| CN2625185Y (en) * | 2003-06-26 | 2004-07-14 | 武汉力兴测试设备有限公司 | Group battery module balancing unit of electric automobile |
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