CN102589892A - Testing system of alternating-current servo permanent magnet synchronous motor - Google Patents
Testing system of alternating-current servo permanent magnet synchronous motor Download PDFInfo
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- CN102589892A CN102589892A CN2012100605683A CN201210060568A CN102589892A CN 102589892 A CN102589892 A CN 102589892A CN 2012100605683 A CN2012100605683 A CN 2012100605683A CN 201210060568 A CN201210060568 A CN 201210060568A CN 102589892 A CN102589892 A CN 102589892A
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Abstract
The invention discloses a testing system of an alternating-current servo permanent magnet synchronous motor, comprising the alternating-current servo permanent magnet synchronous motor, an alternating-current servo driver, a braking alternating-current permanent magnet synchronous servo motor and a braking alternating-current servo driver, wherein the alternating-current servo permanent magnet synchronous motor is connected with the alternating-current servo driver; the braking alternating-current permanent magnet synchronous servo motor is connected with the braking alternating-current servo driver; a shaft of the alternating-current servo permanent magnet synchronous motor and a shaft of the braking alternating-current permanent magnet synchronous servo motor are fixed and locked through a shaft coupler; the alternating-current servo permanent magnet synchronous motor and the braking alternating-current permanent magnet synchronous servo motor are respectively and fixedly mounted at two L-shaped brackets; and the two L-shaped brackets are fixedly mounted on a fixing plate. The testing system of the alternating-current servo permanent magnet synchronous motor, disclosed by the invention, has the advantages of simple structure, a plurality of protection functions, high reliability, low cost, convenience for operation and more accurate data; and tested data can be used as qualitative technical parameters.
Description
Technical field
The present invention relates to servomotor test digital control technology field, specifically, is a kind of AC servo permasyn morot test macro.
Background technology
Along with the development of control technology, Power Electronic Technique and high performance permanent magnetic materials, the AC permanent-magnet synchronous servo motor more and more receives people's attention.At present, some technical parameters of AC permanent-magnet synchronous servo motor need the magnetic dynamometer machine to test usually.The magnetic dynamometer machine is by the stator that the DC excitation winding is housed, the rotor that ferromagnetic material is made, and the high permeability material magnetic that is filled between stator and the rotor airgap is formed.Other has equipment such as isolating transformer, electrical parameter measuring instrument, Dynamometer Control device, electrical contact in addition.
Adopt the principle of work of magnetic dynamometer machine test to be: when stator winding feeds the DC excitation electric current; The magnetic flux that produces will be through the air gap between stator and the rotor, makes the magnetic magnetization between air gap and form two ends to justify and magnetic chain (be equivalent to magnetic and encourage line) that the rotor cylindrical joins respectively with in the stator.When rotor rotation, these magnetic chains will be by " elongation " by force, and the magnetic line of force in magnetic field has tries hard under the shortest inherent characteristic effect, and these magnetic chains will " resistance be elongated by force " and rotor is produced buffer brake, thereby plays braking action.The stator excitation electric current is big more, and braking moment is strong more.Braking power all consumes with the mode of heating.
Yet this mechanical load only is applicable to slow-speed of revolution test, generally also will adopt water-cooling, and equipment is very complicated, and needs certain water consumption; In addition, its high rate performance less stable; After using the long period, magnetic can phenomenon reduces braking function and defectives such as complicacy are keeped in repair in existence because of friction generates hardens; The data of being tested can only be for reference used, can not do technical parameter qualitatively.
Summary of the invention
The object of the invention is to provide a kind of AC servo permasyn morot test macro; Utilize ac driver to drive the AC permanent-magnet synchronous servo motor and brake, the above-mentioned many defectives that exist with the technical parameter that solves available technology adopting magnetic dynamometer machine AC permanent-magnet synchronous servo motor.
The present invention realizes through following technical scheme:
AC servo permasyn morot test macro; Comprise AC permanent-magnet synchronous servo motor, AC servo driver, braking AC permanent-magnet synchronous servo motor, braking AC servo driver; The AC permanent-magnet synchronous servo motor connects AC servo driver; Braking AC permanent-magnet synchronous servo motor connects the braking AC servo driver; AC permanent-magnet synchronous servo motor axle passes through a shaft coupling fixing and locking with braking AC permanent-magnet synchronous servo motor axle, and the AC permanent-magnet synchronous servo motor is fixedly mounted on respectively on two L type supports with braking AC permanent-magnet synchronous servo motor, and two L type supports are fixedly mounted on the fixed head.
Further, said braking AC servo driver connects a high-power resistance.
Further; Said AC permanent-magnet synchronous servo motor is equipped with first photoelectric encoder; Said braking AC permanent-magnet synchronous servo motor is equipped with second photoelectric encoder; There is digital signal processor (DSP) inside of said AC servo driver, said braking AC servo driver, and said digital signal processor (DSP) connects extensive programmable gate array (CPLD), and said extensive programmable gate array (CPLD) connects the intelligent power model (IPM) of MITSUBISHI.
Principle of work of the present invention is: when stator winding feeds interchange (the magnetic dynamometer machine is a DC excitation) exciting current; Consistent with tested motor-field characteristic, produce magnetic flux, when rotor rotation; The magnetic line of force in magnetic field produces buffer brake to rotor, thereby plays braking action.The stator excitation electric current is big more, and braking moment is strong more.Braking power consumes with the heating system of high-power resistance, need not adopt water-cooling; Do not need magnetic, thus can be because of the friction generates phenomenon that hardens, and its high rate performance is stable.
In addition, braking is adopted digital signal processor (DSP), the intelligent power model (IPM) of extensive programmable gate array (CPLD) and MITSUBISHI with this system of AC servo drive system (having another name called the full digital AC servo driver) of test; Integrated level is high; Volume is little, and defencive function is perfect, and reliability is high; Adopt the optimal PID algorithm, accomplish PWM control.Amplitude control, phase control and amplitude control-phase control are arranged, more can adjust with each item technical data of AC permanent-magnet synchronous servo motor and cooperate, make the dynamic accuracy of servo-drive system higher.
Beneficial effect: AC servo permasyn morot test system structure of the present invention is simple, multinomial defencive function is arranged, reliability is high, with low cost, easy to operate, data are more accurate, and the data of being tested can be done technical parameter qualitatively.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the surface structure synoptic diagram of one embodiment of the invention.
Fig. 2 is the modular structure synoptic diagram of scrambler among the present invention.
Fig. 3 is the data acquisition flow figure of driver among the present invention.
Among the figure: 1. fixed head, 2. AC servo driver, 3. AC permanent-magnet synchronous servo motor, 4.L type support, 5. shaft coupling, 6. braking AC permanent-magnet synchronous servo motor, 7. braking AC servo driver, 8. high-power resistance.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Embodiment:
As shown in Figure 1; Two L type supports 4 of fixed installation on the fixed head 1; Two L type support 4 symmetrical placement, AC permanent-magnet synchronous servo motor 3 are fixedly mounted on one of them L type support 4, and braking AC permanent-magnet synchronous servo motor 6 is fixedly mounted on another L type support 4.
AC permanent-magnet synchronous servo motor 3 connects AC servo driver 2; Brake AC permanent-magnet synchronous servo motor 6 and connect braking AC servo drivers 7,3 of AC permanent-magnet synchronous servo motors and 6 of braking AC permanent-magnet synchronous servo motors pass through shaft coupling 5 fixing and lockings.Braking AC servo driver 7 connects high-power resistance 8, and high-power resistance is that power-handling capability is very high here, and generally more than 2KW, big can reach the above resistance of 10KW.The heating of high-power resistance 8 consumes braking power, need not adopt water-cooling, does not need magnetic, thus can be because of the friction generates phenomenon that hardens, and its high rate performance is stable.
Like Fig. 1, Fig. 2 and shown in Figure 3, first photoelectric encoder is installed on the AC permanent-magnet synchronous servo motor 3, on the braking AC permanent-magnet synchronous servo motor 6 second photoelectric encoder is installed.When AC permanent-magnet synchronous servo motor 3 rotates; Through first photoelectric encoder position signalling is fed back to AC servo driver 2; When braking AC permanent-magnet synchronous servo motor 6 rotated, second photoelectric encoder fed back to braking AC servo driver 7 with brake signal.AC servo driver 2 is set the respective model specifications parameter of AC permanent-magnet synchronous servo motor 3 to be tested through extensive programmable gate array (CPLD).AC servo driver 2 feeds back to ac driver with speed and position signalling through first photoelectric encoder on the basis of open loop control does close loop negative feedback and regulates to PID and control; Utilize pid algorithm to calculate the rotating speed deviation; And deliver to single-chip microcomputer and divide thin the processing, utilize pid algorithm to regulate output pwm signal again, produce the PWM ripple; Amplify through intelligent power model IPM circuit, make its running thereby offer the enough big or small power of AC permanent-magnet synchronous servo motor 3.Again through three current closed-loops of AC servo driver 2 internal regulation; Accuracy and time resolution characteristics that the output of AC permanent-magnet synchronous motor 3 is followed setting value all improve a lot, and the homeostasis that dynamic servomechanism is reached also is dynamic balance.
Braking AC servo driver 7 is set the respective model specifications parameter of braking AC permanent-magnet synchronous servo motor 6 through internal wholesale programmable gate array (CPLD).Brake servo driver 7 is regulated control through the second photoelectric encoder regenerative braking signal to PID; Utilize pid algorithm to calculate torque deviation; And deliver to single-chip microcomputer and divide thin the processing, utilize pid algorithm to regulate output pwm signal again, produce the PWM ripple; Amplify through intelligent power model IPM circuit again, brake thereby offer the 6 enough big or small torques of braking AC permanent-magnet synchronous servo motor.Braking power is consumed with heating system by high-power resistance 8.Through in position ring, speed ring and the electric current loop of driver control, gathering relevant test data.Some technical parameters such as relevant test data of testing of electric motors such as feedback speed, command speed, average moment have been write down among Fig. 3.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. AC servo permasyn morot test macro; It is characterized in that; Comprise AC permanent-magnet synchronous servo motor, AC servo driver, braking AC permanent-magnet synchronous servo motor, braking AC servo driver; The AC permanent-magnet synchronous servo motor connects AC servo driver; Braking AC permanent-magnet synchronous servo motor connects the braking AC servo driver; AC permanent-magnet synchronous servo motor axle passes through a shaft coupling fixing and locking with braking AC permanent-magnet synchronous servo motor axle, and the AC permanent-magnet synchronous servo motor is fixedly mounted on respectively on two L type supports with braking AC permanent-magnet synchronous servo motor, and two L type supports are fixedly mounted on the fixed head.
2. AC servo permasyn morot test macro according to claim 1 is characterized in that said braking AC servo driver connects a high-power resistance.
3. AC servo permasyn morot test macro according to claim 1; It is characterized in that; On the said AC permanent-magnet synchronous servo motor first photoelectric encoder is installed; On the said braking AC permanent-magnet synchronous servo motor second photoelectric encoder is installed; There is digital signal processor (DSP) inside of said AC servo driver, said braking AC servo driver, and said digital signal processor (DSP) connects extensive programmable gate array (CPLD), and said extensive programmable gate array (CPLD) connects the intelligent power model (IPM) of MITSUBISHI.
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| CN201210060568.3A CN102589892B (en) | 2012-03-08 | 2012-03-08 | Testing system of alternating-current servo permanent magnet synchronous motor |
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| CN201210060568.3A CN102589892B (en) | 2012-03-08 | 2012-03-08 | Testing system of alternating-current servo permanent magnet synchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320470A (en) * | 2019-07-22 | 2019-10-11 | 中国海洋石油集团有限公司 | A kind of test macro |
| CN113687229A (en) * | 2021-09-09 | 2021-11-23 | 江苏省特种设备安全监督检验研究院 | Testing device and testing method for thermal test of motor with brake |
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| CN113687229A (en) * | 2021-09-09 | 2021-11-23 | 江苏省特种设备安全监督检验研究院 | Testing device and testing method for thermal test of motor with brake |
| CN113687229B (en) * | 2021-09-09 | 2023-08-22 | 江苏省特种设备安全监督检验研究院 | Test device and test method for motor thermal test with brake |
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| CN102589892B (en) | 2015-06-17 |
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Inventor after: Yin Hongmiao Inventor after: Liu Jin Inventor after: Wang Hangao Inventor before: Wang Hangao |
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Address after: Yuhuan County Damaiyu Street Park Village in Taizhou City, Zhejiang province 317604 Patentee after: Zzhejiang Hulong Technology Co., Ltd. Address before: Yuhuan County Damaiyu Street Park Village in Taizhou City, Zhejiang province 317604 Patentee before: Zhejiang Hulong Motor Co., Ltd. |