CN205317907U - A dynamometer machine loading feedback device for electric automobile drive system test platform - Google Patents
A dynamometer machine loading feedback device for electric automobile drive system test platform Download PDFInfo
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- CN205317907U CN205317907U CN201620051371.7U CN201620051371U CN205317907U CN 205317907 U CN205317907 U CN 205317907U CN 201620051371 U CN201620051371 U CN 201620051371U CN 205317907 U CN205317907 U CN 205317907U
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Abstract
A dynamometer machine loading feedback device for electric automobile drive system test platform belongs to electric automobile drive test technical field. The utility model discloses a solve present feedback device, energy repayment inefficiency, the potential safety hazard is big, to mains supply quality also influential problem. The utility model discloses a DSP main control unit connects PWM and exports control signal, and PWM exports control signal and connects isolating driver and protection circuit, and isolating driver and protection circuit connection straighten - reversal stream unit, and straight - reversal flows the unit connection shaft coupling, and the coupling joint is surveyed the motor drive control system, system three -phase AC power supply connection friendship - straight unsteady flow unit is handed over - is straightened the unsteady flow unit connection and straightens - reversal stream unit, DSP main control unit connects the serial communication module, serial communication module connection control system host computer, and DSP main control unit connects the display. The utility model discloses make level and smooth stable, the no harmonic of electric energy of motor repayment, it is also noiseless to the electric wire netting.
Description
Technical field
The utility model relates to a kind of dynamometer machine and loads feedback device, is specifically related to a kind of dynamometer machine for drive system of electric automobile test platform and loads feedback device, belongs to electromobile and drives technical field of measurement and test.
Background technology
Develop with converter technique along with motor type increases, the dynamometer system that analog mechanical loads have also been obtained and develops on a large scale very much, exchange electric power dynamometer machine because of have speed adjustable range wide, load fast response time, structure simply, energy can the advantage such as feedback, make its application more and more wider, the most important or its under control of the controller can four quadrant running, realize under being in generating state energy feedback utilize; Existing most of feedback device is all use simple bidirectional energy circulation unsteady flow circuit or electric energy feedback to be used to bus supply by measured motor, and this kind of design energy source feedback efficiency is not high, and potential safety hazard is also bigger, and mains supply quality is also had impact.
Practical novel content
Give hereinafter about concise and to the point general introduction of the present utility model, to provide about the basic understanding in some of the present utility model. It is to be understood that this general introduction is not summarize about exhaustive of the present utility model. It is not that intention determines key of the present utility model or integral part, neither intended limitation scope of the present utility model. Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
Given this, the utility model provides a kind of dynamometer machine for drive system of electric automobile test platform and loads feedback device, simple bidirectional energy circulation unsteady flow circuit or electric energy feedback is used to be used to bus supply by measured motor at least to solve now most of feedback device, this kind of design energy source feedback efficiency is low, potential safety hazard is big, to mains supply quality also influential problem.
According to an aspect of the present utility model, provide a kind of dynamometer machine for drive system of electric automobile test platform and load feedback device, comprise Controlling System upper computer, serial communication modular, indicating meter, DSP principal controller, PWM output control signal, isolation drive and protection circuit, system three-phase alternating current power supply, friendship-straight current transforming unit, straight-friendship current transforming unit, shaft coupling and tested driving control system for electric machine;
Described DSP principal controller connects PWM and exports control signal, PWM exports control signal and connects isolation drive and protection circuit, isolation drive is connected directly with protection circuit-hands over current transforming unit, directly-friendship current transforming unit connection shaft coupling, and shaft coupling connects tested driving control system for electric machine; System three-phase alternating current power supply connects hands over-straight current transforming unit, hand over-straight current transforming unit connect straight-hand over current transforming unit;
DSP principal controller connects serial communication modular, serial communication modular connection control system upper computer, and DSP principal controller connects indicating meter.
Further: a kind of dynamometer machine for drive system of electric automobile test platform loads feedback device, rotational speed and torque signal amplifying and conditioning circuit, torque and speed sensors, the detection of loading current of electric and electrical network measure voltage & current is also comprised; Described system three-phase alternating current power supply connects electrical network measure voltage & current, electrical network measure voltage & current connects DSP principal controller, directly-hand over current transforming unit to connect loading current of electric detection, load current of electric detection and connect DSP principal controller, shaft coupling connects torque and speed sensors, torque and speed sensors connects rotational speed and torque signal amplifying and conditioning circuit, and rotational speed and torque signal amplifying and conditioning circuit connects DSP principal controller.
Further: described system three-phase alternating current power supply comprises three-phase alternating current electrical network voltage cell and filter shape unit, friendship-straight current transforming unit comprises AIM inlet interface module and ALM active power source module; Three-phase alternating current electrical network voltage cell is connected with filter shape unit, filter shape unit and AIM inlet interface model calling, AIM inlet interface module and ALM active power source model calling.
Further: described directly-hand over current transforming unit comprise double-direction control IPM power model and Asynchronous loading motor; double-direction control IPM power model connects ALM active power source module; isolation drive is connected double-direction control IPM power model with protection circuit; double-direction control IPM power model connects Asynchronous loading motor, and Asynchronous loading motor connects shaft coupling.
Further: described tested driving control system for electric machine comprises by measured motor and electromobile driving control system, and described electromobile driving control system is connected with by measured motor, is connected with Asynchronous loading motor by shaft coupling by measured motor.
The effect that dynamometer machine for drive system of electric automobile test platform of the present utility model loading feedback device reaches is: the utility model utilizes AIM module to be combined with ALM module and uses the formation main passage of energy feedback efficient, safe with the connection of IPM power model again; in addition other monitoring and protecting auxiliary circuits; make whole Dynamometer Control System can not only realize loading object to tested motor stabilizing; also can make motor feedback electric energy smooth steady, without harmonic wave, electrical network is also noiseless.
Accompanying drawing explanation
Fig. 1 is the dynamometer machine loading feedback device hardware structure diagram for drive system of electric automobile test platform;
Fig. 2 is the dynamometer machine loading feedback device friendship for drive system of electric automobile test platform-straight unsteady flow connection module control principle drawing;
Fig. 3 be for the dynamometer machine of drive system of electric automobile test platform load feedback device straight-hand over IPM control principle drawing;
Fig. 4 is the dynamometer machine loading feedback apparatus system power supply circuit figure for drive system of electric automobile test platform;
Fig. 5 is the dynamometer machine loading feedback device IPM control Drive Protecting Circuit figure for drive system of electric automobile test platform;
Fig. 6 is the dynamometer machine loading feedback device loading current of electric metering circuit figure for drive system of electric automobile test platform;
In figure: 1-Controlling System upper computer; 2-serial communication modular; 3-indicating meter; 4-rotational speed and torque signal amplifying and conditioning circuit; 5-torque and speed sensors; 6-loads current of electric detection; 7-DSP principal controller; 8-electrical network measure voltage & current; 9-PWM exports control signal; 10-isolation drive and protection circuit; 11-system three-phase alternating current power supply; 12-hands over-straight current transforming unit; 13-is straight-hand over current transforming unit; 14-shaft coupling; The tested driving control system for electric machine of 15-; 16-three-phase alternating current electrical network voltage cell; 17-filter shape unit; 18-AIM inlet interface module; 19-ALM active power source module; 20-double-direction control IPM power model; 21-Asynchronous loading motor; 22-is by measured motor; 23-electromobile driving control system.
Embodiment
By reference to the accompanying drawings one exemplary embodiment of the present utility model will be described hereinafter. For clarity and conciseness, all features of actual enforcement mode are not described in the description. But, should understand, the process of any this kind of practical embodiments of exploitation must be made a lot specific to the decision of the mode of enforcement, to realize the objectives of developer, such as, meet those restricted conditions relevant to system and business, and these restricted conditions may change to some extent along with the difference of the mode of enforcement. In addition, it should be understood that although development is likely very complicated and time-consuming, but concerning the those skilled in the art having benefited from the utility model disclosure, this kind of development is only routine task.
At this, also it should be noted is that, in order to avoid fuzzy the utility model because of unnecessary details, illustrate only in the accompanying drawings and the apparatus structure closely related according to scheme of the present utility model and/or treatment step, and eliminate other details little with the utility model relation.
For a dynamometer machine loading feedback device for drive system of electric automobile test platform, comprise Controlling System upper computer 1, serial communication modular 2, indicating meter 3, DSP principal controller 7, PWM output control signal 9, isolation drive and protection circuit 10, system three-phase alternating current power supply 11, friendship-straight current transforming unit 12, straight-friendship current transforming unit 13, shaft coupling 14 and tested driving control system for electric machine 15;
Described DSP principal controller 7 connects PWM and exports control signal 9, PWM exports control signal 9 and connects isolation drive and protection circuit 10, isolation drive with protection circuit 10 be connected directly-hand over current transforming unit 13, directly-hand over current transforming unit 13 to connect shaft coupling 14, shaft coupling 14 connects tested driving control system for electric machine 15; System three-phase alternating current power supply 11 connects hands over-straight current transforming unit 12, hand over-straight current transforming unit 12 connects directly-hand over current transforming unit 13;
DSP principal controller 7 connects serial communication modular 2, and serial communication modular 2 connection control system upper computer 1, DSP principal controller 7 connects indicating meter 3.
A kind of dynamometer machine for drive system of electric automobile test platform loads feedback device and also comprises rotational speed and torque signal amplifying and conditioning circuit 4, torque and speed sensors 5, loads current of electric detection 6 and electrical network measure voltage & current 8; Described system three-phase alternating current power supply 11 connects electrical network measure voltage & current 8, electrical network measure voltage & current 8 connects DSP principal controller 7, directly-hand over current transforming unit 13 to connect loading current of electric detection 6, load current of electric detection 6 connection DSP principal controller 7, shaft coupling 14 connects torque and speed sensors 5, torque and speed sensors 5 connects rotational speed and torque signal amplifying and conditioning circuit 4, and rotational speed and torque signal amplifying and conditioning circuit 4 connects DSP principal controller 7.
Described system three-phase alternating current power supply 11 comprises three-phase alternating current electrical network voltage cell 16 and filter shape unit 17, and friendship-straight current transforming unit 12 comprises AIM inlet interface module 18 and ALM active power source module 19; Three-phase alternating current electrical network voltage cell 16 is connected with filter shape unit 17, and filter shape unit 17 is connected with AIM inlet interface module 18, and AIM inlet interface module 18 is connected with ALM active power source module 19.
Described directly-hand over current transforming unit 13 comprise double-direction control IPM power model 20 and Asynchronous loading motor 21; double-direction control IPM power model 20 connects ALM active power source module 19; isolation drive is connected double-direction control IPM power model 20 with protection circuit 10; double-direction control IPM power model 20 connects Asynchronous loading motor 21, and Asynchronous loading motor 21 connects shaft coupling 14.
Described tested driving control system for electric machine 15 comprises by measured motor 22 and electromobile driving control system 23, and described electromobile driving control system 23 is connected with by measured motor 22, is connected with Asynchronous loading motor 21 by shaft coupling 14 by measured motor 22.
More specifically:
Three-phase alternating current is first through isolating switch K, fusing silk FU, power filter is input to AIM inlet interface module, when line failure, isolating switch automatic trip protection electrical equipment, fusing silk plays the provide protection to circuit overcurrent, electric energy tentatively eliminates noise signal in circuit by wave filter, obtain the input sinusoidal voltage of specific frequency, then it is input to AIM module the quality of power supply to be optimized, reduce power network fluctuation to systematic influence, AIM inside modules is integrated is connected to wave filter, reactor, voltage detection circuit, play and again optimize electric energy effect, by exporting, interface is input to ALM active power source module to optimised three-phase alternating current electric energy, ALM module is about 600V direct current and filtering in addition as rectifier 380V AC rectification, eliminate the interference of current harmonics, and can direct current feedback grid, DC bus-bar voltage also can be carried out closed-loop control by it, the impact reducing voltage ripple of power network and system produced, keep the stable of direct current bus bar pressure. AIM inlet interface module, ALM active power source module for power supply voltage are the 24V volts DSs provided by outside, it may also be useful to both temperature survey ends also must be connected to get up by time.
More specifically:
The direct current exported by ALM active power source module rectification enters IPM and two-way circulates unsteady flow circuit, when dynamometer machine drives tested motor rotation as electric motor, electric energy is by IPM module positive flow logical supply dynamometer machine, when tested motor drag loads dynamometer machine running, dynamometer machine is in generator state, the electric energy that generating produces feeds back on direct current bus through IPM unsteady flow circuit reverse circulated, it is reverse into alternating-current feedback grid again through ALM active power source module, IPM module be Controlling System straight-alternation changes or hands over-straight conversion (when feedback electric energy) important step, IPM inside modules is integrated with Drive Protecting Circuit, pwm control signal can be blocked during internal drive fault in time export, control can be adopted simpler for loading dynamometer machine, dynamic, the Direct Torque Control technology that static properties is excellent, export pwm control signal by primary controller and directly control motor operating state.
More specifically:
Whole Controlling System needs different direct current supply voltage, AIM inlet interface module, ALM active power source module for power supply voltage are the 24V volts DSs provided by outside, dsp controller needs 1.8V, 3.3V service voltage, and the circuit such as other detection, isolation also need different power voltage.220V alternating-current is changed into about 30V voltage of alternating current through potential device, then alternating-current is input to H bridge rectification circuit, output direct current is input to three ends through electric capacity C1 filter shape and can align in potentiostat LM317, master loop access fusing silk FU, prevent from being damaged by circuit during fault, VD1 and LM317 is connected in antiparallel, under VD1 prevents input short situation, export and cause device to damage with input terminus pressure reduction is excessive, VD2 accesses output port, when output short-circuit, electricity clamper is avoided damaging device to diode forward voltage drop value, output voltage values regulates by two outer meeting resistance R1, adjustable resistance R2 realizes, change R2 value of sliding just can change output voltage values.
More specifically:
The actuate signal of IPM power conversion module just can be gone to control the break-make of transistor after high speed photo coupling isolation is amplified, export different pwm signal and regulate motor rotation state, dsp controller produces control signal and is input to high speed photo coupling 6N137 port, voltage is promoted for improving the external pull-up resistor of output drive signal ability, for the process of trouble signal, adopt low speed optocoupler PC817, when there being fault to input, PC817 has output signal response, is input to controller process fault interrupting.
More specifically:
Measure loading motor input AC electric current and adopt two-way Hall current sensor (alternating current-direct current can be surveyed), in fact current sense device is a kind of current transformer, by the electric current that bigger tested current transitions is little, outward current obtains the voltage of conversion by sampling resistance, controller can not be directly inputted owing to input voltage is less, need the amplification filtering through a series of amplifier, in order to prevent voltage signal too high or too low, carry out amplitude limiting processing before the signal of input controller, connect and compose limiting circuit in turn by two diodes.
Although the enforcement mode that the utility model discloses is as above, but the enforcement mode that its content just adopts for the ease of understanding the technical solution of the utility model, it is not intended to limit the utility model. Technician in any the utility model art; under the prerequisite not departing from the core technology scheme that the utility model discloses; any amendment and change can be made in the form implemented and details; but the protection domain that the utility model limits, still must be as the criterion with the scope that appending claims limits.
Claims (5)
1., for the dynamometer machine loading feedback device of drive system of electric automobile test platform, comprise Controlling System upper computer (1), serial communication modular (2), indicating meter (3), DSP principal controller (7), PWM output control signal (9), isolation drive and protection circuit (10), system three-phase alternating current power supply (11), friendship-straight current transforming unit (12), straight-friendship current transforming unit (13), shaft coupling (14) and tested driving control system for electric machine (15);
It is characterized in that: described DSP principal controller (7) connects PWM and exports control signal (9), PWM exports control signal (9) and connects isolation drive and protection circuit (10), isolation drive with protection circuit (10) be connected directly-hand over current transforming unit (13), directly-hand over current transforming unit (13) to connect shaft coupling (14), shaft coupling (14) connects tested driving control system for electric machine (15); System three-phase alternating current power supply (11) connects hands over-straight current transforming unit (12), hand over-straight current transforming unit (12) connect straight-hand over current transforming unit (13);
DSP principal controller (7) connects serial communication modular (2), serial communication modular (2) connection control system upper computer (1), and DSP principal controller (7) connects indicating meter (3).
2. the dynamometer machine for drive system of electric automobile test platform according to claim 1 loads feedback device, it is characterized in that: a kind of dynamometer machine for drive system of electric automobile test platform loads feedback device, also comprise rotational speed and torque signal amplifying and conditioning circuit (4), torque and speed sensors (5), load current of electric detection (6) and electrical network measure voltage & current (8), described system three-phase alternating current power supply (11) connects electrical network measure voltage & current (8), electrical network measure voltage & current (8) connects DSP principal controller (7), directly-hand over current transforming unit (13) to connect loading current of electric detection (6), load current of electric detection (6) and connect DSP principal controller (7), shaft coupling (14) connects torque and speed sensors (5), torque and speed sensors (5) connects rotational speed and torque signal amplifying and conditioning circuit (4), rotational speed and torque signal amplifying and conditioning circuit (4) connects DSP principal controller (7).
3. the dynamometer machine for drive system of electric automobile test platform according to claim 2 loads feedback device, it is characterized in that: described system three-phase alternating current power supply (11) comprises three-phase alternating current electrical network voltage cell (16) and filter shape unit (17), friendship-straight current transforming unit (12) comprises AIM inlet interface module (18) and ALM active power source module (19); Three-phase alternating current electrical network voltage cell (16) is connected with filter shape unit (17), filter shape unit (17) is connected with AIM inlet interface module (18), and AIM inlet interface module (18) is connected with ALM active power source module (19).
4. the dynamometer machine for drive system of electric automobile test platform according to claim 3 loads feedback device, it is characterized in that: described directly-hand over current transforming unit (13) comprise double-direction control IPM power model (20) and Asynchronous loading motor (21), double-direction control IPM power model (20) connects ALM active power source module (19), isolation drive is connected double-direction control IPM power model (20) with protection circuit (10), double-direction control IPM power model (20) connects Asynchronous loading motor (21), Asynchronous loading motor (21) connects shaft coupling (14).
5. the dynamometer machine for drive system of electric automobile test platform according to claim 4 loads feedback device, it is characterized in that: described tested driving control system for electric machine (15) comprises by measured motor (22) and electromobile driving control system (23), described electromobile driving control system (23) is connected with by measured motor (22), is connected with Asynchronous loading motor (21) by shaft coupling (14) by measured motor (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051371.7U CN205317907U (en) | 2016-01-19 | 2016-01-19 | A dynamometer machine loading feedback device for electric automobile drive system test platform |
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| CN201620051371.7U CN205317907U (en) | 2016-01-19 | 2016-01-19 | A dynamometer machine loading feedback device for electric automobile drive system test platform |
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| CN205317907U true CN205317907U (en) | 2016-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521364A (en) * | 2019-01-02 | 2019-03-26 | 莱茵技术监护（深圳）有限公司 | Parameter identifier system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521364A (en) * | 2019-01-02 | 2019-03-26 | 莱茵技术监护（深圳）有限公司 | Parameter identifier system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20170119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |