CN2896663Y - Increment type photoelectric code-wheel mounting position automatic detection device of pemanent magnet synchronous motor - Google Patents
Increment type photoelectric code-wheel mounting position automatic detection device of pemanent magnet synchronous motor Download PDFInfo
- Publication number
- CN2896663Y CN2896663Y CNU2006200705535U CN200620070553U CN2896663Y CN 2896663 Y CN2896663 Y CN 2896663Y CN U2006200705535 U CNU2006200705535 U CN U2006200705535U CN 200620070553 U CN200620070553 U CN 200620070553U CN 2896663 Y CN2896663 Y CN 2896663Y
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- China
- Prior art keywords
- magnet synchronous
- synchronous motor
- permanent magnet
- photoelectric code
- code disk
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Abstract
The model utility relates to an auto detector of installation position for a incremental photoelectrical encoder on a permanent magnet synchronous motor (PMSM) and comprises a servo drive (1), PMSM (3), a binary system reversible counter (2), an incremental photoelectrical encoder (4). The model utility is characterized in that the three phase winding of the servo drive (1) is connected with PMSM (3), the rotary shaft of the PMSM (3) is provided with the incremental photoelectrical encoder (4), the signals from the incremental photoelectrical encoder (4) is transmitted to the binary system reversible counter (2) and the reset signal input port of the binary system reversible counter (2) is connected with the C pulse signal output port of the incremental photoelectrical encoder (4). If it is no need to use an oscillograph to measure incremental photoelectrical encoder pulse signal and inductive electromotive force of the idling stator, The model utility makes the servo drive automatically detect the installation position of the incremental photoelectrical encoder on the PMSM.
Description
Technical field
The utility model relates to the automatic detection device of the installation site of the increment photoelectric code disk on the permanent magnet synchronous motor.
Background technology
At present, increment photoelectric code disk accuracy of detection height, price are low, and output signal is more level and smooth, and amplitude is not subjected to the influence of motor speed yet, therefore have been widely used in the high performance Vector Control of Permanent Magnet Synchronous Motors system.But present servo-driver can not detect the installation site that is installed in the increment photoelectric code disk on the permanent magnet synchronous motor automatically, can only make code-disc be installed in certain location by adjustment, be that the code-disc installation can not be arbitrarily, otherwise motor just can not run well.The operation of adjusting code disk mounting position is also pretty troublesome, at first to drag permanent-magnet synchronous electric motor with another motor low speed, use the unloaded induced electromotive force of oscilloscope measurement code-disc C pulse signal and stator then, adjust code disk mounting position and make C pulse signal and the unloaded induced electromotive force of stator form the corresponding phase relation that requires.The method of this adjustment not only troublesome poeration but also positioning accuracy is not high.In addition, the code-disc installing and locating position of different motor manufacturing firm is often different, so servo-driver just can not mate the permanent magnet synchronous motor of different motor manufacturing firm.
Summary of the invention
To be solved in the utility model is exactly existing permanent magnet synchronous motor troublesome poeration and not high problem of positioning accuracy when adjusting increment photoelectric code disk mounting position, simultaneously also in order to solve the problem that servo-driver can not mate the permanent magnet synchronous motor of different motor manufacturing firm.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The automatic detection device of the installation site of the increment photoelectric code disk on the permanent magnet synchronous motor, comprise servo-driver 1, permanent magnet synchronous motor 3, up/down binary counter 2, increment photoelectric code disk 4, three phase windings of servo-driver 1 connect permanent magnet synchronous motor 3, increment photoelectric code disk 4 is installed on permanent magnet synchronous motor 3 rotation axiss, the signal of increment photoelectric code disk 4 outputs to a up/down binary counter 2, and the reset signal input port of this up/down binary counter 2 connects the C pulse signal output end of increment photoelectric code disk 4.The output current frequency that adopts the asynchronous method that drags to produce the three-phase sine-wave electric current is no more than 5Hz.
Operation principle of the present utility model is as follows: give stator U, the V of permanent magnet synchronous motor, the three-phase sine-wave electric current that W three phase windings feed a low frequency by servo-driver, permanent magnet synchronous motor is rotated to a direction.With a up/down binary counter A of increment photoelectric code disk, the rising edge and the trailing edge of B orthogonal pulses signal are counted, and with the C pulse signal of the increment photoelectric code disk reset signal as up/down binary counter.Continue to make the permanent magnet synchronous motor rotation detect the C pulse signal of increment photoelectric code disk when servo-driver after, when the electric current of stator U phase winding arrives 90 ° of phase places, promptly ought send U phase sine voltage signal and be in 90 degree phase places, keep the constant rotor of permanent magnet synchronous motor that makes of three-phase current to be fixed on the axis of stator U phase winding.This moment, the count value of up/down binary counter was just represented the position of stator U phase winding axis with respect to the C pulse signal of increment photoelectric code disk, and just the rotor of permanent magnet synchronous motor is with respect to the position of the C pulse signal of increment photoelectric code disk.Be converted to electrical degree=(count value ÷ (code-disc line number * 4 ÷ numbers of pole-pairs)) * 360 °.
The beneficial effects of the utility model are: under the condition that does not need to use the unloaded induced electromotive force of oscilloscope measurement code-disc C pulse signal and stator, the utility model can make servo-driver detect the installation site of the increment photoelectric code disk on the permanent magnet synchronous motor automatically.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Among the figure 1, servo-driver, 2, up/down binary counter, 3, permanent magnet synchronous motor, 4, increment photoelectric code disk,
Embodiment
Below in conjunction with drawings and Examples operation principle of the present utility model and example are further specified.
In Fig. 1, adopt the asynchronous method that drags, feed the three-phase sine-wave electric current that a frequency is lower than 5Hz for stator U, the V of permanent magnet synchronous motor 3, W three phase windings by servo-driver 1, permanent magnet synchronous motor 3 is rotated to a direction.Count with the A of 2 pairs of increment photoelectric code disks 4 of up/down binary counter, the rising edge and the trailing edge of B orthogonal pulses signal, and with the C pulse signal of the increment photoelectric code disk reset signal as up/down binary counter 2.Continue to make permanent magnet synchronous motor 3 rotations detect the C pulse signal of increment photoelectric code disk 4 when servo-driver 1 after, when the electric current of stator U phase winding arrives 90 ° of phase places, promptly ought send U phase sine voltage signal and be in 90 degree phase places, keep the constant rotor of permanent magnet synchronous motor 3 that makes of three-phase current to be fixed on the axis of stator U phase winding.This moment, the count value of up/down binary counter 2 was just represented the position of the rotor of permanent magnet synchronous motor 3 with respect to the C pulse signal of increment photoelectric code disk 4.
The number of pole-pairs of supposing permanent magnet synchronous motor is 2, and code-disc line number is 2048,360 ° of electrical degrees of motor revolution so, and code-disc should send 2048 * 4 a ÷ 2=4096 pulse, therefore will be with 12 up/down binary counters.If this moment, the count value of up/down binary counter was 512, the rotor of permanent magnet synchronous motor just equals (512 ÷ 4096) * 360 °=45 ° with respect to the electrical degree of the C pulse signal of increment photoelectric code disk so.
Claims (2)
1, a kind of increment photoelectric code disk mounting position automatic detection device of permanent magnet synchronous motor, comprise servo-driver (1), permanent magnet synchronous motor (3), up/down binary counter (2), increment photoelectric code disk (4), it is characterized in that: three phase windings of servo-driver (1) connect permanent magnet synchronous motor (3), on permanent magnet synchronous motor (3) rotation axis increment photoelectric code disk (4) is installed, the signal of increment photoelectric code disk (4) outputs to a up/down binary counter (2), and the reset signal input port of this up/down binary counter (2) connects the C pulse signal output end of increment photoelectric code disk (4).
2, the Position automatic detection device of the increment photoelectric code disk of permanent magnet synchronous motor as claimed in claim 1, it is characterized in that, adopt the asynchronous method that drags, feed the three-phase sine-wave electric current that frequency is lower than 5Hz for the three-phase stator winding of permanent magnet synchronous motor (3) by servo-driver (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200705535U CN2896663Y (en) | 2006-03-23 | 2006-03-23 | Increment type photoelectric code-wheel mounting position automatic detection device of pemanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200705535U CN2896663Y (en) | 2006-03-23 | 2006-03-23 | Increment type photoelectric code-wheel mounting position automatic detection device of pemanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2896663Y true CN2896663Y (en) | 2007-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200705535U Expired - Lifetime CN2896663Y (en) | 2006-03-23 | 2006-03-23 | Increment type photoelectric code-wheel mounting position automatic detection device of pemanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2896663Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175559A (en) * | 2012-12-06 | 2013-06-26 | 江苏大学 | Equipment and method for measuring relative position of two rotors of double-salient type double-rotor motor |
-
2006
- 2006-03-23 CN CNU2006200705535U patent/CN2896663Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175559A (en) * | 2012-12-06 | 2013-06-26 | 江苏大学 | Equipment and method for measuring relative position of two rotors of double-salient type double-rotor motor |
| CN103175559B (en) * | 2012-12-06 | 2015-06-10 | 江苏大学 | Method for measuring relative position of two rotors of double-salient type double-rotor motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING AISIDUN DIGITAL TECHNOLOGY CO. LTD. Free format text: FORMER OWNER: EEDUN IND AUTOMATION CO., LTD., NANJING Effective date: 20101215 Free format text: FORMER OWNER: NANJING AISIDUN DIGITAL TECHNOLOGY CO. LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 211100 NO. 155, JIANGJUN SOUTH ROAD, JIANGNING ECONOMIC DEVELOPMENT ZONE, NANJING CITY, JIANGSU PROVINCE TO: 211100 NO. 155, JIANGJUN ROAD, JIANGNING DISTRICT, NANJING CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101215 Address after: 211100, No. 155, general road, Jiangning District, Jiangsu, Nanjing Patentee after: Nanjing Aisidun Digital Technology Co., Ltd. Address before: 211100, No. 155, general South Road, Jiangning Economic Development Zone, Jiangsu, Nanjing Co-patentee before: Nanjing Aisidun Digital Technology Co., Ltd. Patentee before: Eedun Ind Automation Co., Ltd., Nanjing |
|
| C56 | Change in the name or address of the patentee |
Owner name: NANJING ESTUN AUTOMATION CO., LTD. Free format text: FORMER NAME: NANJING AISIDUN DIGITAL TECHNOLOGY CO. LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 211100, No. 155, general road, Jiangning District, Jiangsu, Nanjing Patentee after: Nanjing Estun Automation Co., Ltd. Address before: 211100, No. 155, general road, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing Aisidun Digital Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070502 |
|
| EXPY | Termination of patent right or utility model |