CN104166040B - Permanent-magnetic synchronous motor stator voltage detecting system and method under two phase inversions - Google Patents
Permanent-magnetic synchronous motor stator voltage detecting system and method under two phase inversions Download PDFInfo
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- CN104166040B CN104166040B CN201410363997.7A CN201410363997A CN104166040B CN 104166040 B CN104166040 B CN 104166040B CN 201410363997 A CN201410363997 A CN 201410363997A CN 104166040 B CN104166040 B CN 104166040B
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Abstract
Permanent-magnetic synchronous motor stator voltage detecting system and its method under a kind of two phase inversion,Electromagnetic induction voltage sensor is connected with the first signal reception pin of the data collecting system based on DSP with serial communication interface module with secondary signal reception pin respectively,The described data collecting system based on DSP is also connected by the interface of serial data communication with host computer,Described host computer carries the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions,Permanent-magnetic synchronous motor stator voltage detection module under two described phase inversions includes three cordic phase rotators to two-phase rotating coordinate transformation module,Also include VISA modules in described host computer,And with reference to its method can effectively avoid it is of the prior art also without such technology come due to the huge dynamic of data volume observe the stator voltage under two cordic phase rotators so far can not by way of easy to solve the defects of.
Description
Technical field
The invention belongs to permagnetic synchronous motor technical field, and in particular to the permagnetic synchronous motor under a kind of two phase inversion is determined
Sub- voltage detecting system and its method.
Background technology
Permasyn morot has simple in construction, and small volume, in light weight, the small, efficiency high of loss, power factor height etc. are excellent
Point, it is mainly used in requirement response quickly, speed-regulating range width, the high performance servo transmission system of accurate positioning and direct current generator more
It is new to substitute motor.
Stator voltage is usually needed to be converted to two from three cordic phase rotators in the running of permasyn morot
Stator voltage under cordic phase rotator is manipulated with this, but lacks a kind of convenient and simple turn for permasyn morot now
The real-time monitoring device of the stator voltage changed under two cordic phase rotators.
The content of the invention
It is an object of the invention to provide the permanent-magnetic synchronous motor stator voltage detecting system under a kind of two phase inversion and its method,
Electromagnetic induction voltage sensor is respectively the same as the first signal of the data collecting system based on DSP with serial communication interface module
Receive pin with secondary signal reception pin to be connected, the data collecting system based on DSP is also led to by serial data
The interface of letter is connected with host computer, and described host computer carries the permanent-magnetic synchronous motor stator voltage detecting mould under two phase inversions
Block, the permanent-magnetic synchronous motor stator voltage detection module under two described phase inversions include three cordic phase rotators and rotated to two-phase
Coordinate transformation module, VISA modules are also included in described host computer, and can effectively be avoided in the prior art with reference to its method
Also come without such technology because the stator voltage that the huge dynamic of data volume is observed under two cordic phase rotators so far can not
The defects of by way of easy to solve.
In order to overcome deficiency of the prior art, the invention provides the permanent-magnetic synchronous motor stator under a kind of two phase inversion
The solution of voltage detecting system and its method, it is specific as follows：
A kind of permanent-magnetic synchronous motor stator voltage detecting system under two phase inversion, is included in permanent-magnetic synchronous motor stator
The first electromagnetic induction voltage sensor 1 and the second electromagnetic induction voltage sensing are respectively arranged with by two phase windings in three-phase windings
Device 2, the first described electromagnetic induction voltage sensor 1 and the second electromagnetic induction voltage sensor 2 can be respectively induced out described
Two phase windings voltage, the first described electromagnetic induction voltage sensor 1 and the second electromagnetic induction voltage sensor 2 are same respectively
First signal of the data collecting system 4 based on DSP with serial communication interface module receives pin 5 and secondary signal receives
Pin 6 is connected, and the data collecting system 4 based on DSP is also by the interface 8 of serial data communication the same as the phase of host computer 9
Connection, described host computer 9 carry the permanent-magnetic synchronous motor stator voltage detection module 10 under two phase inversions, two described phase transformations
The permanent-magnetic synchronous motor stator voltage detection module 10 changed includes three cordic phase rotators to two-phase rotating coordinate transformation module
11, also include VISA modules in described host computer 9.
Permanent-magnetic synchronous motor stator voltage detection module 10 under two described phase inversions also includes human-computer interaction interface,
Described human-computer interaction interface includes operation interface part and display interface part, and described operation interface part is by behaviour
Make interface operate after just can be by the permanent-magnetic synchronous motor stator voltage detection module 10 under two phase inversions to host computer 9
Send instruction；Described display interface part is divided into waveform display portion and instrument display portion, described waveform display portion
It is able to detect that the whole change of voltage data of the stator of selected scope interior permanent-magnet synchronous motor under two-phase rotating coordinate system
Process；Described instrument display portion can stablize voltage of the stator of display permagnetic synchronous motor under two-phase rotating coordinate system
Data.
Described waveform display portion pass through waveform display window show permagnetic synchronous motor stator voltage amplitude-when
Half interval contour, described instrument display portion include two arc-shaped scale zones, described two arc-shaped scale zones point
It Yong Lai not represent that d shaft voltage value scope and permagnetic synchronous motor of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system are determined
Q shaft voltage value scope of the son under two-phase rotating coordinate system, it is each provided with below described two arc-shaped scale zones
One pointer shape icon, it is respectively arranged with for showing that permagnetic synchronous motor is determined above described two arc-shaped scale zones
The text box of d shaft voltage value and the text of q shaft voltage value under two-phase rotating coordinate system of the son under two-phase rotating coordinate system
This frame.
Described operation interface part includes serial ports parameter setting part, waveform selection part, waveform shaping part point, control
Part and waveform display parameters setting unit, described serial ports parameter setting part are used for the initial of the parameter of serial communication
Change, described serial ports parameter setting part includes for the choice box of serial port number selection and for setting serial communication ripple
The text box of special rate, it is described to be used for default selective value in the choice box of serial port number selection and be identified for host computer 9
Serial port number, described waveform display parameters setting unit include be used for set data IQ forms translative mode text
Frame, for setting the text box of cache size and for setting the text box of sample frequency, described waveform shaping part subpackage
Include for selecting the select button of the passage of the data collecting system based on DSP, for choosing whether to be based on DSP to selected
Data collecting system passage amplitude measure vernier shift knob, for choosing whether to be based on to selected
It is vernier shift knob that the time of the passage of DSP data collecting system measures, selected based on DSP's for showing
The text box of the amplitude of the passage of data collecting system, for showing the passage of the selected data collecting system based on DSP
The text box of time, the text box for setting vernier graduation value and for waveform movement left and right tie rod, described control
System part includes start button, pause button and stop button, and described start button, pause button and stop button are right respectively
Tested waveform performs startup, operation suspension and the control for terminating operation, and described waveform selection part includes being used to select display
D shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system clicks frame and for selecting to show permanent-magnet synchronous
Q shaft voltage waveform of the motor stator under two-phase rotating coordinate system clicks frame, thus can be by being shown after selection in waveform
Window shows that the selection that is used for of corresponding selection shows d shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Figure shows q shaft voltage oscillogram of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system for selection.
The method of permanent-magnetic synchronous motor stator voltage detecting system under two described phase inversions, step are as follows：
Step 1：Start the permanent-magnetic synchronous motor stator voltage detecting system under two phase inversions, the first electromagnetic induction electricity first
The electromagnetic induction voltage sensor 2 of pressure sensor 1 and second is respectively induced out the voltage of two described phase windings, same to permanent magnetism with this
The voltage for walking the two described phase windings of motor stator carries out data acquisition, and the voltage of the two described phase windings collected
Value is delivered to the data collecting system 4 based on DSP, and passes through the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions
10 operation human-computer interaction interfaces, serial ports parameter setting part selection serial port number and serial communication ripple on human-computer interaction interface
Special rate, and serial communication baud rate is allowed with the string set in the serial communication interface module in the data collecting system 4 based on DSP
Port communications baud rate is consistent；
Step 2：Permanent-magnetic synchronous motor stator voltage detection module 10 under two phase inversions is led to serial ports elsewhere
Parity check bit, data bits and the stop position of letter are configured, parity check bit, the data ratio to serial communication
Value that special position and stop position are set in the serial communication interface module in the data collecting system 4 based on DSP respectively the same as setting
The parity check bit of serial communication, data bits are consistent with the value that stop position is set；
Step 3：In addition for setting the text box of the translative mode of data IQ forms, for setting the text of cache size
This frame and for set carried out respectively in the text box of sample frequency the translative mode to data IQ forms, cache size and
The setting of sample frequency, by using selecting the select button of the passage of the data collecting system based on DSP to carry out to based on DSP
Data collecting system passage selection, by using choosing whether to the selected data collecting system based on DSP
Vernier shift knob that the amplitude of passage measures, for choosing whether to the selected data collecting system based on DSP
Passage the vernier shift knob that measures of time and for setting the text box of vernier graduation value to be made whether respectively
The amplitude of the passage of the selected data collecting system based on DSP is measured and made a choice, whether to selected base
Measured in the time of the passage of DSP data collecting system and make a choice and set vernier graduation value；
Step 4：Selection is selected to by point and shows d shaft voltage of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Waveform clicks frame or for selecting to show q shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Frame is clicked to select the voltage waveform classification shown in waveform display window, this completes Initialize installation；
Step 5：Then after start button is clicked, the permanent-magnetic synchronous motor stator voltage inspection under two described phase inversions
Survey module 10 and measurement instruction is just sent to the data collecting system 4 based on DSP by the interface 8 of serial data communication, it is described
Measurement instruction include the information of Initialize installation, and the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions
10 are provided with the array of the information for preserving current initialization setting in internal memory, are preserving what current initialization was set every time
Before information, the information that first current initialization is set is stored in the letter of the last Initialize installation in the array with the last time
Manner of breathing compares, if variant, the information that current initialization is set just is saved in into the letter for preserving current initialization setting
In the array of breath, if without difference, keep constant for preserving the data of the array of the information of current initialization setting；
Step 6：When the data collecting system 4 based on DSP receive via serial data communication interface 8 transmit come bag
The measurement instruction of the information of Initialize installation is included, will be according to the selection in the information of Initialize installation in waveform display window
The voltage waveform classification of display and selection to the passage of the data collecting system based on DSP are the same voltage waveform gathered in real time
The corresponding voltage data of classification is sent in host computer 9 by the passage of selection；
Step 7：After host computer 9 receives voltage data, the permanent-magnetic synchronous motor stator voltage detecting mould under two phase inversions
Block 10 just sets buffer area to store the voltage data received, serial communication every time using 4 bytes as one group of transceiving data,
The voltage transmission of data received is the data of IQ forms, is so again converted into the voltage transmission of data received by format conversion
Waveform True Data represented by common decimal system signed number, the concrete mode of format conversion are the voltage for first judging to receive
The sign attribute of transmission of data exports signed number, and signed number can obtain waveform True Data, institute by inverse operation again
The waveform True Data stated includes the magnitude of voltage of the two described phase windings of permanent-magnetic synchronous motor stator, then passes through permanent magnet synchronous electric
It is another in three-phase windings of the condition that the magnitude of voltage sum of the three-phase windings of machine stator is 0 with regard to permanent-magnetic synchronous motor stator can be exported
The magnitude of voltage of an outer phase winding, the magnitudes of voltage of the A phase windings in the three-phase windings of described permanent-magnetic synchronous motor stator, B phases around
The magnitude of voltage of group and the magnitude of voltage of C group windings are expressed as Va、VbAnd Vc, the permanent-magnetic synchronous motor stator electricity under two phase inversions
Press three cordic phase rotators in detection module 10 to two-phase rotating coordinate transformation module 11 according to the three of permanent-magnetic synchronous motor stator
The magnitude of voltage of the magnitude of voltage of A phase windings in phase winding, the magnitude of voltage of B phase windings and C group windings, described permagnetic synchronous motor
The magnitude of voltage of the magnitude of voltage of A phase windings in the three-phase windings of stator, the magnitude of voltage of B phase windings and C group windings is according to formula (1)
With formula (2) d shaft voltage value of the export permanent-magnetic synchronous motor stator under two-phase rotating coordinate system and in two cordic phase rotators
Q shaft voltage values under system, a shaft voltage value of the described permanent-magnetic synchronous motor stator under two-phase rest frame and in two-phase
β shaft voltage values under rest frame are respectively VaAnd Vβ, described permanent-magnetic synchronous motor stator is under two-phase rotating coordinate system
D shaft voltages value and q shaft voltage values under two-phase rotating coordinate system are respectively VdAnd Vq, angle of the θ expression d axles with a axles：
D shaft voltage value of the described permanent-magnetic synchronous motor stator under two-phase rotating coordinate system and in two cordic phase rotators
Q shaft voltage values under system are stored in buffer area in case generating and observe waveform, when data are deposited, circulate each time, array is all
Rearward displacement can be passed through the data newly read are stored in buffer area foremost, the data that array afterbody removes will be removed；
Step 8：D shaft voltage value of the described permanent-magnetic synchronous motor stator in buffer area under two-phase rotating coordinate system
Or the q shaft voltage values under two-phase rotating coordinate system are sent to the stator that waveform display window is directed to corresponding permagnetic synchronous motor
Voltage is shown in the form of amplitude versus time curve, or is carved in instrument display portion by pointer shape icon in arc-shaped
Indicated in degree region and be used for showing d axle electricity of the described permanent-magnetic synchronous motor stator under two-phase rotating coordinate system corresponding
Magnitude of voltage is shown in the text box of pressure value or the text box of the q shaft voltage values under two-phase rotating coordinate system.
During display, amplitude and time scale can also be amplified and reduce as needed the present invention, in order to
Waveform thin portion is analyzed.After realizing that waveform is shown, can also by the time amplitude vernier on panel to waveform time and
The size of amplitude measures, and realizes to measured quantitative analysis.
Brief description of the drawings
Fig. 1 is the permanent-magnetic synchronous motor stator voltage detecting system attachment structure schematic diagram under two phase inversions of the present invention.
Embodiment
Control is the very high field of two degrees of correlation with test, and the LabVIEW to be built up from testing field is naturally
Expand first to control field.LabVIEW possesses the module LabVIEWDSC dedicated for control field.In addition, it is industrial
The conventional equipment of control field, data wire etc. generally also all carry corresponding LabVIEW drivers.Can be with using LabVIEW
Very easily work out various control programs.
As shown in figure 1, the permanent-magnetic synchronous motor stator voltage detecting system under two phase inversions, is included in permagnetic synchronous motor
The first electromagnetic induction voltage sensor 1 and the second electromagnetic induction electricity are respectively arranged with by two phase windings in the three-phase windings of stator
Pressure sensor 2, the first described electromagnetic induction voltage sensor 1 and the second electromagnetic induction voltage sensor 2 can be respectively induced
Go out the voltage of two described phase windings, described the first electromagnetic induction voltage sensor 1 and the second electromagnetic induction voltage sensor 2
The first signal with the data collecting system 4 based on DSP with serial communication interface module receives pin 5 and second and believed respectively
Number receive pin 6 be connected, the data collecting system 4 based on DSP is also by the interface 8 of serial data communication with upper
Machine 9 is connected, and described host computer 9 carries the permanent-magnetic synchronous motor stator voltage detection module 10 under two phase inversions, described
Permanent-magnetic synchronous motor stator voltage detection module 10 under two phase inversions includes three cordic phase rotators and become to two cordic phase rotators
Block 11 is changed the mold, also includes VISA modules in described host computer 9.Permanent-magnetic synchronous motor stator electricity under two described phase inversions
Pressure detection module 10 also includes human-computer interaction interface, and described human-computer interaction interface includes operation interface part and display interface
Part, described operation interface part are by just can be same by the permanent magnetism under two phase inversions after the operating of operation interface
Walk motor stator voltage detection module 10 and instruction is sent to host computer 9；Described display interface part is divided into waveform display portion
With instrument display portion, described waveform display portion is able to detect that the stator of selected scope interior permanent-magnet synchronous motor in two-phase
The whole change procedure of voltage data under rotating coordinate system；Described instrument display portion can stablize display permanent magnet synchronous electric
The data of voltage of the stator of machine under two-phase rotating coordinate system.Described waveform display portion is shown by waveform display window
The amplitude versus time curve of the stator voltage of permagnetic synchronous motor, described instrument display portion include two arc-shaped scales
Region, described two arc-shaped scale zones are respectively intended to represent permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
The q shaft voltage value scopes of d shaft voltage value scopes and permanent-magnetic synchronous motor stator under two-phase rotating coordinate system, described two
A pointer shape icon, the top point of described two arc-shaped scale zones are each provided with below arc-shaped scale zone
Text box for showing d shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system is not provided with and two
The text box of q shaft voltage values under cordic phase rotator system.Described operation interface part includes serial ports parameter setting part, waveform
Selected section, waveform shaping part point, control section and waveform display parameters setting unit, described serial ports parameter setting part
For the initialization of the parameter to serial communication, described serial ports parameter setting part includes for serial port number selection
Choice box and the text box for setting serial communication baud rate, described is used to preset in the choice box of serial port number selection
Selective value be the serial port number that can identify of host computer 9, described waveform display parameters setting unit includes being used for setting
The text box of the translative mode of data IQ forms, for setting the text box of cache size and for setting the text of sample frequency
This frame, described waveform shaping part point include being used for selecting the select button of the passage of the data collecting system based on DSP, are used for
Choose whether vernier shift knob, the use measured to the amplitude of the passage of the selected data collecting system based on DSP
Come choose whether to measure the time of the passage of the selected data collecting system based on DSP vernier shift knob,
For showing the text box of the amplitude of the passage of the selected data collecting system based on DSP, for showing selected base
Text box in the time of the passage of DSP data collecting system, the text box for setting vernier graduation value and for ripple
The left and right tie rod of shape movement, described control section include start button, pause button and stop button, it is described start by
Button, pause button and stop button perform startup, operation suspension and the control for terminating operation, described ripple to being tested waveform respectively
Shape selected section includes being used to select the point for showing d shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Select frame and click frame for select to show q shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system, this
Sample just can show permanent-magnetic synchronous motor stator two by the selection that is used for for showing corresponding selection in waveform display window after selection
D shaft voltages oscillogram under cordic phase rotator system or for selecting to show permanent-magnetic synchronous motor stator in two-phase rotating coordinate system
Under q shaft voltage oscillograms.
The method of permanent-magnetic synchronous motor stator voltage detecting system under two described phase inversions, step are as follows：
Step 1：Start the permanent-magnetic synchronous motor stator voltage detecting system under two phase inversions, the first electromagnetic induction electricity first
The electromagnetic induction voltage sensor 2 of pressure sensor 1 and second is respectively induced out the voltage of two described phase windings, same to permanent magnetism with this
The voltage for walking the two described phase windings of motor stator carries out data acquisition, and the voltage of the two described phase windings collected
Value is delivered to the data collecting system 4 based on DSP, and passes through the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions
10 operation human-computer interaction interfaces, serial ports parameter setting part selection serial port number and serial communication ripple on human-computer interaction interface
Special rate, and serial communication baud rate is allowed with the string set in the serial communication interface module in the data collecting system 4 based on DSP
Port communications baud rate is consistent；
Step 2：Permanent-magnetic synchronous motor stator voltage detection module 10 under two phase inversions is led to serial ports elsewhere
Parity check bit, data bits and the stop position of letter are configured, parity check bit, the data ratio to serial communication
Value that special position and stop position are set in the serial communication interface module in the data collecting system 4 based on DSP respectively the same as setting
The parity check bit of serial communication, data bits are consistent with the value that stop position is set；
Step 3：In addition for setting the text box of the translative mode of data IQ forms, for setting the text of cache size
This frame and for set carried out respectively in the text box of sample frequency the translative mode to data IQ forms, cache size and
The setting of sample frequency, by using selecting the select button of the passage of the data collecting system based on DSP to carry out to based on DSP
Data collecting system passage selection, by using choosing whether to the selected data collecting system based on DSP
Vernier shift knob that the amplitude of passage measures, for choosing whether to the selected data collecting system based on DSP
Passage the vernier shift knob that measures of time and for setting the text box of vernier graduation value to be made whether respectively
The amplitude of the passage of the selected data collecting system based on DSP is measured and made a choice, whether to selected base
Measured in the time of the passage of DSP data collecting system and make a choice and set vernier graduation value；
Step 4：Selection is selected to by point and shows d shaft voltage of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Waveform clicks frame or for selecting to show q shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Frame is clicked to select the voltage waveform classification shown in waveform display window, this completes Initialize installation；
Step 5：Then after start button is clicked, the permanent-magnetic synchronous motor stator voltage inspection under two described phase inversions
Survey module 10 and measurement instruction is just sent to the data collecting system 4 based on DSP by the interface 8 of serial data communication, it is described
Measurement instruction include the information of Initialize installation, and the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions
10 are provided with the array of the information for preserving current initialization setting in internal memory, are preserving what current initialization was set every time
Before information, the information that first current initialization is set is stored in the letter of the last Initialize installation in the array with the last time
Manner of breathing compares, if variant, the information that current initialization is set just is saved in into the letter for preserving current initialization setting
In the array of breath, if without difference, keep constant for preserving the data of the array of the information of current initialization setting；
Step 6：When the data collecting system 4 based on DSP receive via serial data communication interface 8 transmit come bag
The measurement instruction of the information of Initialize installation is included, will be according to the selection in the information of Initialize installation in waveform display window
The voltage waveform classification of display and selection to the passage of the data collecting system based on DSP are the same voltage waveform gathered in real time
The corresponding voltage data of classification is sent in host computer 9 by the passage of selection；
Step 7：After host computer 9 receives voltage data, the permanent-magnetic synchronous motor stator voltage detecting mould under two phase inversions
Block 10 just sets buffer area to store the voltage data received, serial communication every time using 4 bytes as one group of transceiving data,
The voltage transmission of data received is the data of IQ forms, is so again converted into the voltage transmission of data received by format conversion
Waveform True Data represented by common decimal system signed number, the concrete mode of format conversion are the voltage for first judging to receive
The sign attribute of transmission of data exports signed number, and signed number can obtain waveform True Data, institute by inverse operation again
The waveform True Data stated includes the magnitude of voltage of the two described phase windings of permanent-magnetic synchronous motor stator, then passes through permanent magnet synchronous electric
It is another in three-phase windings of the condition that the magnitude of voltage sum of the three-phase windings of machine stator is 0 with regard to permanent-magnetic synchronous motor stator can be exported
The magnitude of voltage of an outer phase winding, the magnitudes of voltage of the A phase windings in the three-phase windings of described permanent-magnetic synchronous motor stator, B phases around
The magnitude of voltage of group and the magnitude of voltage of C group windings are expressed as Va、VbAnd Vc, the permanent-magnetic synchronous motor stator electricity under two phase inversions
Press three cordic phase rotators in detection module 10 to two-phase rotating coordinate transformation module 11 according to the three of permanent-magnetic synchronous motor stator
The magnitude of voltage of the magnitude of voltage of A phase windings in phase winding, the magnitude of voltage of B phase windings and C group windings, described permagnetic synchronous motor
The magnitude of voltage of the magnitude of voltage of A phase windings in the three-phase windings of stator, the magnitude of voltage of B phase windings and C group windings is according to formula (1)
With formula (2) d shaft voltage value of the export permanent-magnetic synchronous motor stator under two-phase rotating coordinate system and in two cordic phase rotators
Q shaft voltage values under system, a shaft voltage value of the described permanent-magnetic synchronous motor stator under two-phase rest frame and in two-phase
β shaft voltage values under rest frame are respectively VaAnd Vβ, described permanent-magnetic synchronous motor stator is under two-phase rotating coordinate system
D shaft voltages value and q shaft voltage values under two-phase rotating coordinate system are respectively VdAnd Vq, angle of the θ expression d axles with a axles：
D shaft voltage value of the described permanent-magnetic synchronous motor stator under two-phase rotating coordinate system and in two cordic phase rotators
Q shaft voltage values under system are stored in buffer area in case generating and observe waveform, when data are deposited, circulate each time, array is all
Rearward displacement can be passed through the data newly read are stored in buffer area foremost, the data that array afterbody removes will be removed；
Step 8：D shaft voltage value of the described permanent-magnetic synchronous motor stator in buffer area under two-phase rotating coordinate system
Or the q shaft voltage values under two-phase rotating coordinate system are sent to the stator that waveform display window is directed to corresponding permagnetic synchronous motor
Voltage is shown in the form of amplitude versus time curve, or is carved in instrument display portion by pointer shape icon in arc-shaped
Indicated in degree region and be used for showing d axle electricity of the described permanent-magnetic synchronous motor stator under two-phase rotating coordinate system corresponding
Magnitude of voltage is shown in the text box of pressure value or the text box of the q shaft voltage values under two-phase rotating coordinate system.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, according to the technical spirit of the present invention,
Within the spirit and principles in the present invention, any simple modification, equivalent substitution and improvement for being made to above example etc., still
Belong within the protection domain of technical solution of the present invention.
Claims (1)
1. the method for the permanent-magnetic synchronous motor stator voltage detecting system under a kind of two phase inversion, it is characterised in that under two phase inversions
Permanent-magnetic synchronous motor stator voltage detecting system be included in by two phase windings in the three-phase windings of permanent-magnetic synchronous motor stator
It is respectively arranged with the first electromagnetic induction voltage sensor and the second electromagnetic induction voltage sensor, the first described electromagnetic induction electricity
Pressure sensor and the second electromagnetic induction voltage sensor can be respectively induced out the voltage of two described phase windings, and described first
Electromagnetic induction voltage sensor and the second electromagnetic induction voltage sensor respectively with serial communication interface module based on DSP
The first signal of data collecting system receive pin and secondary signal and receive pin and be connected, the data based on DSP
Acquisition system is also connected by the interface of serial data communication with host computer, and described host computer is carried under two phase inversions forever
Magnetic-synchro motor stator voltage detection module, the permanent-magnetic synchronous motor stator voltage detection module under two described phase inversions include
There are three cordic phase rotators to two-phase rotating coordinate transformation module, also include VISA modules in described host computer；Described two
Permanent-magnetic synchronous motor stator voltage detection module under phase inversion also includes human-computer interaction interface, described human-computer interaction interface
Including operation interface part and display interface part, described operation interface part is by after the operating of operation interface
The permanent-magnetic synchronous motor stator voltage detection module that can pass through under two phase inversions is sent to host computer and instructed；Described display circle
Face part is divided into waveform display portion and instrument display portion, and described waveform display portion is able to detect that in selected scope forever
The whole change procedure of voltage data of the stator of magnetic-synchro motor under two-phase rotating coordinate system；Described instrument display portion
The data of voltage of the stator of display permagnetic synchronous motor under two-phase rotating coordinate system can be stablized；
Described waveform display portion shows that the amplitude versus time of the stator voltage of permagnetic synchronous motor is bent by waveform display window
Line, described instrument display portion include two arc-shaped scale zones, and described two arc-shaped scale zones are used respectively
To represent that d shaft voltage value scope and permanent-magnetic synchronous motor stator of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system exist
Q shaft voltage value scopes under two-phase rotating coordinate system, one is each provided with below described two arc-shaped scale zones
Pointer shape icon, it is respectively arranged with for showing that permanent-magnetic synchronous motor stator exists above described two arc-shaped scale zones
The text box of the text box of d shaft voltage values under two-phase rotating coordinate system and the q shaft voltage values under two-phase rotating coordinate system；
Described operation interface part includes serial ports parameter setting part, waveform selection part, waveform shaping part point, control section
And waveform display parameters setting unit, described serial ports parameter setting part are used for the initialization to the parameter of serial communication,
Described serial ports parameter setting part includes for the choice box of serial port number selection and for setting serial communication baud
The text box of rate, described is used for the string that default selective value can identify for host computer in the choice box of serial port number selection
Row port numbers, the text box of translative mode of the described waveform display parameters setting unit including being used for setting data IQ forms,
For setting the text box of cache size and for setting the text box of sample frequency, described waveform shaping part point includes use
To select the select button of the passage of the data collecting system based on DSP, for choosing whether to the selected number based on DSP
The vernier shift knob that is measured according to the amplitude of the passage of acquisition system, for choosing whether to selected based on DSP's
Vernier shift knob that the time of the passage of data collecting system measures, for showing the selected data based on DSP
The text box of the amplitude of the passage of acquisition system, for show the passage of the selected data collecting system based on DSP when
Between text box, the text box for setting vernier graduation value and for waveform movement left and right tie rod, described control unit
Dividing includes start button, pause button and stop button, and described start button, pause button and stop button are respectively to tested
Waveform performs startup, operation suspension and the control for terminating operation, and described waveform selection part includes being used to select to show permanent magnetism
D shaft voltage waveform of the synchronous motor stator under two-phase rotating coordinate system clicks frame and for selecting to show permagnetic synchronous motor
Q shaft voltage waveform of the stator under two-phase rotating coordinate system clicks frame, thus can by after selection in waveform display window
Show corresponding selection be used to select show d shaft voltage oscillogram of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system or
Person is used to select to show q shaft voltage oscillogram of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system；
The step of method of permanent-magnetic synchronous motor stator voltage detecting system under two phase inversions, is as follows
Step 1：Start the permanent-magnetic synchronous motor stator voltage detecting system under two phase inversions first, the first electromagnetic induction voltage passes
Sensor and the second electromagnetic induction voltage sensor are respectively induced out the voltage of two described phase windings, with this to permagnetic synchronous motor
The voltage of the two described phase windings of stator carries out data acquisition, and the magnitude of voltage transmission of the two described phase windings collected
People is run to the data collecting system based on DSP, and by the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions
Machine interactive interface, serial ports parameter setting part selection serial port number and serial communication baud rate on human-computer interaction interface, and
Serial communication baud rate is allowed with the serial communication ripple set in the serial communication interface module in the data collecting system based on DSP
Special rate is consistent；
Step 2：Permanent-magnetic synchronous motor stator voltage detection module under two phase inversions elsewhere to the strange of serial communication
Even parity bit, data bits and stop position are configured, it is described to the parity check bit of serial communication, data bits and
The value that stop position is set is respectively the same as the serial communication set in the serial communication interface module in the data collecting system based on DSP
Parity check bit, data bits it is consistent with the value that stop position is set；
Step 3：In addition for setting the text box of the translative mode of data IQ forms, for setting the text box of cache size
And for setting the translative mode, cache size and sampling that are carried out respectively in the text box of sample frequency to data IQ forms
The setting of frequency, by using selecting the select button of the passage of the data collecting system based on DSP to carry out to the number based on DSP
According to the selection of the passage of acquisition system, by using choosing whether the passage to the selected data collecting system based on DSP
Amplitude measure vernier shift knob, for choosing whether to the logical of the selected data collecting system based on DSP
Vernier shift knob that the time in road measures and for setting the text box of vernier graduation value to be made whether respectively to quilt
The amplitude of the passage of the data collecting system based on DSP of selection, which measures, to make a choice, whether is based on DSP to selected
Time of passage of data collecting system measure and make a choice and set vernier graduation value；
Step 4：Selection is selected to by point and shows d shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Click frame or for selecting to show clicking for q shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase rotating coordinate system
Frame selects the voltage waveform classification shown in waveform display window, and this completes Initialize installation；
Step 5：Then after start button is clicked, the permanent-magnetic synchronous motor stator voltage detecting mould under two described phase inversions
Measurement instruction is just sent to the data collecting system based on DSP by block by the interface of serial data communication, and described measurement refers to
Order includes the information of Initialize installation, and the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions is in internal memory
The array of the information for preserving current initialization setting is provided with, every time before the information that current initialization is set is preserved,
Compared with the information for the last Initialize installation that first information that current initialization is set is stored in the array with the last time,
If variant, the information that current initialization is set just is saved in the array of the information for preserving current initialization setting
In, if without difference, keep constant for preserving the data of the array of the information of current initialization setting；
Step 6：When the data collecting system based on DSP receive via serial data communication interface 8 transmit come include
The measurement instruction of the information of Initialize installation, it will be shown according to the selection in the information of Initialize installation in waveform display window
Voltage waveform classification and selection to the passage of the data collecting system based on DSP the same voltage waveform classification gathered in real time
Corresponding voltage data is sent in host computer by the passage of selection；
Step 7：After host computer receives voltage data, the permanent-magnetic synchronous motor stator voltage detection module under two phase inversions is just set
Buffer area is put to store the voltage data received, serial communication using 4 bytes as one group of transceiving data, receives every time
Voltage transmission of data is the data of IQ forms, and the voltage transmission of data received so is converted into common ten by format conversion again and entered
The waveform True Data represented by symbolic number is formed with, the concrete mode of format conversion is the voltage transmission of data for first judging to receive
Sign attribute exports signed number, and signed number can obtain waveform True Data, described waveform by inverse operation again
True Data includes the magnitude of voltage of the two described phase windings of permanent-magnetic synchronous motor stator, then passes through permanent-magnetic synchronous motor stator
An other phase in three-phase windings of the condition with regard to permanent-magnetic synchronous motor stator can be exported that the magnitude of voltage sum of three-phase windings is 0 around
The magnitude of voltage of group, magnitude of voltage, the voltage of B phase windings of the A phase windings in the three-phase windings of described permanent-magnetic synchronous motor stator
The magnitude of voltage of value and C group windings is expressed as Va, Vb and Vc, the permanent-magnetic synchronous motor stator voltage detecting mould under two phase inversions
Three cordic phase rotators in block are to two-phase rotating coordinate transformation module according to the A phases in the three-phase windings of permanent-magnetic synchronous motor stator
The magnitude of voltage of the magnitude of voltage of winding, the magnitude of voltage of B phase windings and C group windings, the three-phase of described permanent-magnetic synchronous motor stator around
The magnitude of voltage of the magnitude of voltage of A phase windings claims 6, the magnitude of voltage of B phase windings and C group windings in group is according to formula (1)
With formula (2) d shaft voltage value of the export permanent-magnetic synchronous motor stator under two-phase rotating coordinate system and in two cordic phase rotators
Q shaft voltage values under system, a shaft voltage value of the described permanent-magnetic synchronous motor stator under two-phase rest frame and in two-phase
β shaft voltage values under rest frame are respectively Va and V β, and described permanent-magnetic synchronous motor stator is under two-phase rotating coordinate system
D shaft voltages value and the q shaft voltage values under two-phase rotating coordinate system be respectively Vd and Vq, θ represents angle of the d axles with a axles：
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D shaft voltage value of the described permanent-magnetic synchronous motor stator under two-phase rotating coordinate system and under two-phase rotating coordinate system
Q shaft voltage values be stored in buffer area in case generate observation waveform, when data are deposited, circulate each time, array all can be through
Cross rearward displacement and the data newly read are stored in buffer area foremost, the data that array afterbody removes will be removed；
Step 8：D shaft voltage value of the described permanent-magnetic synchronous motor stator in buffer area under two-phase rotating coordinate system or
Q shaft voltage values under two-phase rotating coordinate system are sent to the stator voltage that waveform display window is directed to corresponding permagnetic synchronous motor
Shown in the form of amplitude versus time curve, or in instrument display portion by pointer shape icon in arc-shaped scale area
Indicated in domain and be used for showing d shaft voltage value of the described permanent-magnetic synchronous motor stator under two-phase rotating coordinate system corresponding
Text box or the q shaft voltage values under two-phase rotating coordinate system text box in show magnitude of voltage.
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Citations (2)
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| CN1787355A (en) * | 2005-06-16 | 2006-06-14 | 谭启仁 | Monolithic apparatus PWM Controller for brushless DC motor of sensor-free electrical vehicle |
| CN102109575A (en) * | 2009-12-25 | 2011-06-29 | 上海微电子装备有限公司 | Method, device and system for testing linear motor based on virtual instrument |
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| US8531141B2 (en) * | 2011-02-28 | 2013-09-10 | Deere & Company | System for calibrating an electrical control system |
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|---|---|---|---|---|
| CN1787355A (en) * | 2005-06-16 | 2006-06-14 | 谭启仁 | Monolithic apparatus PWM Controller for brushless DC motor of sensor-free electrical vehicle |
| CN102109575A (en) * | 2009-12-25 | 2011-06-29 | 上海微电子装备有限公司 | Method, device and system for testing linear motor based on virtual instrument |
Non-Patent Citations (1)
| Title |
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| 永磁同步伺服电机自动测试系统的设计研究;谭斐文;《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》;20061215(第12期);论文的第1、7、18、20-32、34-35、37-51页 * |
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