CN104166041B - Permanent-magnetic synchronous motor stator voltage detecting system and method are changed in 3S/2S changes - Google Patents
Permanent-magnetic synchronous motor stator voltage detecting system and method are changed in 3S/2S changes Download PDFInfo
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- CN104166041B CN104166041B CN201410363999.6A CN201410363999A CN104166041B CN 104166041 B CN104166041 B CN 104166041B CN 201410363999 A CN201410363999 A CN 201410363999A CN 104166041 B CN104166041 B CN 104166041B
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Abstract
Permanent-magnetic synchronous motor stator voltage detecting system and its method are changed in a kind of 3S/2S change,Electromagnetic induction voltage sensor receives pin with the first signal of the data collecting system based on DSP with serial communication interface module respectively,Second signal receives pin and is connected with third signal reception pin,The data collecting system based on DSP is also connected by the interface of serial data communication with host computer,The host computer becomes the permanent-magnetic synchronous motor stator voltage detection module changed with 3S/2S,It includes three phase static coordinate to two-phase static coordinate conversion module that the 3S/2S, which becomes the permanent-magnetic synchronous motor stator voltage detection module changed,,Also include VISA modules in the host computer,And the defect that the stator voltage that in conjunction with its method can effectively avoid such technology not yet in the prior art to be observed under two-phase static coordinate due to the huge dynamic of data volume can not be solved by way of easy so far.
Description
Technical field
The invention belongs to permanent magnet synchronous motor technical fields, and in particular to it is fixed that permanent magnet synchronous motor is changed in a kind of 3S/2S change
Sub- voltage detecting system and its method.
Background technology
Permasyn morot is a non-linear, time variation and probabilistic complex control object.In permanent-magnet synchronous
Generally use vector controlled in the governing system of motor, vector control technology development it is more early, AC speed regulating field apply compared with
For maturation.
For the ease of controlling the stator voltage of permasyn morot, it is often necessary to be carried out three phase static coordinate and turned
The stator voltage changed under two-phase static coordinate simplifies or facilitates control, but huge due to data volume, and dynamic observes
Stator voltage under two-phase static coordinate can not be solved by way of easy so far.
Invention content
It is an object of the invention to provide a kind of 3S/2S changes to change permanent-magnetic synchronous motor stator voltage detecting system and its method,
Hall effect 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, second signal receives pin and is connected with third signal reception pin, the data collecting system based on DSP
Also it is connected with host computer by the interface of serial data communication, the host computer becomes the permanent-magnet synchronous changed with 3S/2S
Motor stator voltage detection module, it includes three that the 3S/2S, which becomes the permanent-magnetic synchronous motor stator voltage detection module changed,
Phase static coordinate also includes VISA modules in the host computer to two-phase static coordinate conversion module, and combines its method
Such technology not yet in the prior art can effectively avoid to observe two-phase static coordinate due to the huge dynamic of data volume
Under the defect that can not be solved by way of easy so far of stator voltage.
Permanent-magnetic synchronous motor stator is changed in a kind of 3S/2S changes in order to overcome the deficiencies in the prior art, the present invention provides
The solution of voltage detecting system and its method, it is specific as follows：
Permanent-magnetic synchronous motor stator voltage detecting system is changed in a kind of 3S/2S change, is included in permanent-magnetic synchronous motor stator
It is respectively arranged with the first electromagnetic induction voltage sensor 1, second by A phase windings, B phase windings and C group windings in three-phase windings
Electromagnetic induction voltage sensor 2 and third electromagnetic induction voltage sensor 3, the first electromagnetic induction voltage sensor 1,
Two electromagnetic induction voltage sensors 2 and third electromagnetic induction voltage sensor 3 can be respectively induced out the A phases of three-phase windings around
The voltage of group, B phase windings and C group windings, the first electromagnetic induction voltage sensor 1, the second electromagnetic induction voltage sensing
Device 2 and third electromagnetic induction voltage sensor 3 are respectively the same as the data collecting system based on DSP for carrying serial communication interface module
4 the first signal receives pin 5, second signal receives pin 6 and is connected with third signal reception pin 7, described based on DSP
Data collecting system 4 be also connected with host computer 9 by the interface of serial data communication 8, the host computer 9 carry 3S/
2S becomes the permanent-magnetic synchronous motor stator voltage detection module 10 changed, and the 3S/2S becomes the permanent-magnetic synchronous motor stator changed
Voltage detection module 10 includes three phase static coordinate to two-phase static coordinate conversion module 11, is also wrapped in the host computer 9
Contain VISA modules.
It further includes having human-computer interaction circle that the 3S/2S, which becomes the permanent-magnetic synchronous motor stator voltage detection module 10 changed,
Face, the human-computer interaction interface include operation interface part and display interface part, and the operation interface part is to pass through
Become the permanent-magnetic synchronous motor stator voltage detection module 10 changed to upper to 3S/2S can be passed through after the operating of operation interface
Position machine 9 sends instruction；The display interface part is divided into waveform display portion and instrument display portion, and the waveform is shown
Part is able to detect that the entire of voltage data of the stator of selected range interior permanent-magnet synchronous motor under two-phase stationary coordinate system
Change procedure；The instrument display portion can stablize the stator of display permanent magnet synchronous motor under two-phase stationary coordinate system
The data of voltage.
The waveform display portion by waveform display window show permanent magnet synchronous motor stator voltage amplitude-when
Half interval contour, the instrument display portion include that there are two arc-shaped scale zone, described two arc-shaped scale zones point
It Yong Lai not indicate that a shaft voltage value range and permanent magnet synchronous motor of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system are fixed
β shaft voltage value range of the son under two-phase stationary coordinate system is each provided with below described two arc-shaped scale zones
One pointer shape icon is respectively arranged with above described two arc-shaped scale zones for showing that permanent magnet synchronous motor is fixed
The text box of a shaft voltage value of the son under two-phase stationary coordinate system and the text of the β shaft voltage values under two-phase stationary coordinate system
This frame.
The operation interface part includes serial ports parameter setting part, waveform selection part, waveform shaping part point, control
Part and waveform display parameters setting unit, the serial ports parameter setting part are used for the initial of the parameter of serial communication
Change, the serial ports parameter setting part includes the choice box selected for serial port number and for serial communication wave to be arranged
The text box of special rate, preset selective value can identify for host computer 9 in the described choice box selected for serial port number
Serial port number, the waveform display parameters setting unit includes the text of the translative mode for data IQ formats are arranged
Frame, the text box for cache size is arranged and for the text box of sample frequency, the waveform shaping part subpackage is arranged
Include for select the select button in the channel of the data collecting system based on DSP, for choose whether to it is selected be based on DSP
Data collecting system channel amplitude measure vernier switch button, for choosing whether to be based on to selected
It is vernier switch button that the time in the channel of the data collecting system of DSP measures, selected based on DSP's for showing
The text box of the amplitude in the channel of data collecting system, for showing the channel of the selected data collecting system based on DSP
Time text box, the text box for vernier graduation value to be arranged and the left and right tie rod moved for waveform, the control
System part includes start button, pause button and stop button, and the start button, pause button and stop button are right respectively
Tested waveform executes startup, operation suspension and the control for terminating operation, and the waveform selection part includes for selecting display
A shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system clicks frame and for selecting to show permanent-magnet synchronous
β shaft voltage waveform of the motor stator under two-phase stationary coordinate system clicks frame, thus can be by being shown in waveform after selection
Window display corresponding selection is used to select a shaft voltage waveform of the display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Scheme or for selecting β shaft voltage oscillogram of the display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system.
The 3S/2S becomes the method for changing permanent-magnetic synchronous motor stator voltage detecting system, and steps are as follows：
Step 1：Start 3S/2S changes first and changes permanent-magnetic synchronous motor stator voltage detecting system, the first electromagnetic induction electricity
Pressure sensor 1, the second electromagnetic induction voltage sensor 2 and third electromagnetic induction voltage sensor 3 are respectively to permanent magnet synchronous motor
The voltage of the voltage of A phase windings in the three-phase windings of stator, the voltage of B phase windings and C group windings carries out data acquisition, and handle
The voltage value of A phase windings in the three-phase windings of collected permanent-magnetic synchronous motor stator, the voltage value of B phase windings and C groups around
The voltage value of group is transmitted to the data collecting system 4 based on DSP, and becomes the permanent-magnetic synchronous motor stator changed electricity by 3S/2S
Press detection module 10 run human-computer interaction interface, on human-computer interaction interface serial ports parameter setting part selection serial port number and
Serial communication baud rate, and allow serial communication baud rate with the serial communication interface module in the data collecting system 4 based on DSP
The serial communication baud rate of interior setting is consistent；
Step 2：Become the logical to serial ports elsewhere of the permanent-magnetic synchronous motor stator voltage detection module 10 changed in 3S/2S
Parity check bit, data bits and the stop position of letter are configured, parity check bit, the data ratio to serial communication
The value of special position and stop position setting is respectively the same as being arranged in the serial communication interface module in the data collecting system 4 based on DSP
The parity check bit of serial communication, data bits are consistent with the value that stop position is arranged；
Step 3：In addition in the text box of the translative mode for data IQ formats are arranged, for the text of cache size is arranged
This frame and for be arranged in the text box of sample frequency carry out respectively the translative mode to data IQ formats, cache size and
The setting of sample frequency is carried out by the select button in the channel for selecting the data collecting system based on DSP to being based on DSP
Data collecting system channel selection, by for choosing whether to the selected data collecting system based on DSP
Vernier switch button that the amplitude in channel measures, for choosing whether to the selected data collecting system based on DSP
The vernier switch button that measures of time in channel and the text box for vernier graduation value to be arranged be made whether respectively
The amplitude in the channel of the selected data collecting system based on DSP is measured and is made a choice, whether to selected base
Time in the channel of the data collecting system of DSP, which measures, makes a choice and is arranged vernier graduation value；
Step 4：It is selected to selection by point and shows a shaft voltage of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Waveform clicks frame or for selecting β shaft voltage waveform of the display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Frame is clicked to select the voltage waveform classification shown in waveform display window, this completes Initialize installations；
Step 5：Then after clicking start button, the 3S/2S becomes the permanent-magnetic synchronous motor stator voltage changed
Measurement instruction is just sent to the data collecting system 4 based on DSP, institute by detection module 10 by the interface 8 of serial data communication
The measurement instruction stated includes the information of Initialize installation, and 3S/2S becomes the permanent-magnetic synchronous motor stator voltage detecting changed
Module 10 is provided with the array of the information for preserving current initialization setting in memory, is set every time in preservation current initialization
Before the information set, the first information current initialization setting is stored in the last Initialize installation in the array with the last time
Information compare, if variant, just by current initialization setting information preservation arrive be used for preserve current initialization be arranged
Information array in, if without difference, remained unchanged for preserving the data of array of 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 packet
The measurement instruction of the information of Initialize installation is included, it will be according to the selection in the information of Initialize installation in waveform display window
The voltage waveform classification of display and to the selection in the channel of the data collecting system based on DSP the same voltage waveform acquired in real time
The corresponding voltage data of classification is sent to by the channel of selection in host computer 9；
Step 7：After host computer 9 receives voltage data, 3S/2S becomes the permanent-magnetic synchronous motor stator voltage detecting mould changed
Just setting buffer area stores the voltage data received to block 10, transceiving data that serial communication is every time one group with 4 bytes,
The voltage transmission of data received is the data of IQ formats, is in this way converted into the voltage transmission of data received using format conversion
Waveform truthful data represented by common decimal system signed number, the concrete mode of format conversion is first to judge the voltage received
The sign attribute of transmission of data exports signed number, and signed number can be obtained waveform truthful data, institute using inverse operation
The waveform truthful data stated includes the electricity of the voltage value of the A phase windings in the three-phase windings of permanent-magnetic synchronous motor stator, B phase windings
The voltage value of pressure value and C group windings, the voltage value of the A phase windings in the three-phase windings of the permanent-magnetic synchronous motor stator, B phases
The voltage value of winding and the voltage value of C group windings are respectively Va、VbAnd Vc, 3S/2S becomes the permanent-magnetic synchronous motor stator voltage changed
Three phase static coordinate in detection module 10 is to two-phase static coordinate conversion module 11 according to the three-phase of permanent-magnetic synchronous motor stator
The voltage value of the voltage value of A phase windings in winding, the voltage value of B phase windings and C group windings, the permanent magnet synchronous motor are fixed
The voltage value of the voltage value of A phase windings, the voltage value of B phase windings and C group windings in the three-phase windings of son is led according to formula (1)
Go out a shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system and the β axis electricity under two-phase stationary coordinate system
Pressure value, a shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system and in two-phase stationary coordinate system
Under β shaft voltage values be respectively VaAnd Vβ：
A shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system and in two-phase static coordinate
β shaft voltage values under system are stored in buffer area in case generating observation waveform and are recycled each time when data are stored, and array is all
Rearward displacement can be passed through, the data newly read are stored in buffer area foremost, the data that array tail portion removes will be removed；
Step 8：A shaft voltage value of the permanent-magnetic synchronous motor stator in buffer area under two-phase stationary coordinate system
Or the β shaft voltage values under two-phase stationary coordinate system are sent to the stator that waveform display window is directed to corresponding permanent magnet synchronous motor
Voltage is shown in the form of amplitude versus time curve, or is carved in arc-shaped by pointer shape icon in instrument display portion
It is indicated in degree region and in the corresponding a axis electricity for being used for showing the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Voltage value is shown in the text box of pressure value or the text box of the β shaft voltage values under two-phase stationary coordinate system.
First electromagnetic induction voltage sensor 1, the second electromagnetic induction voltage sensor 2 and the third electromagnetic induction electricity
Pressure sensor 3 is respectively to the voltage of the A phase windings in the three-phase windings of permanent-magnetic synchronous motor stator, the voltage of B phase windings and C groups
The mode that the voltage of winding carries out data acquisition can also be by only needing two electromagnetic induction voltage sensors come respectively to forever
The voltage of two phase windings in the three-phase windings of magnetic-synchro motor stator carries out data acquisition to obtain permanent-magnetic synchronous motor stator
Three-phase windings in two phase windings voltage value, then the sum of the voltage value of three-phase windings for passing through permanent-magnetic synchronous motor stator is
0 condition can export the voltage value of the other phase winding in the three-phase windings of permanent-magnetic synchronous motor stator.
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 show, can also by the time amplitude vernier on panel to waveform time with
The size of amplitude measures, and realizes to measured quantitative analysis.
Description of the drawings
Fig. 1 is that permanent-magnetic synchronous motor stator voltage detecting system attachment structure schematic diagram is changed in the 3S/2S changes of the present invention.
Specific implementation mode
Labview is considered as data acquisition and the instrument control software of a standard, and there are one can complete any volume for it
The huge function library of journey task and the feature-rich module librarys VI, and there is powerful data-handling capacity.Labview is strong
Big function is attributed to the fact that the structure of its stratification, allows user that the VI programs of establishment as subroutine call, are createed more
For the stronger instrument of sophisticated functions, and the level of this calling there is no limit.Labview is because of its powerful and flexible work(
Can, test can be met and measured, control, many demands such as emulation are widely connect by industrial quarters, academia and research laboratory
By.
The asynchronous communication between Labview and slave computer DSP is realized using serial ports, is by serial ports transceiving data correctly
The basis of software monitors system.VISA (Virtual Instrument Software Architecture) is in Labview
Single socket library that VXI, GPIB, RS-232 and other kind of quasi-instrument are controlled in platform is many instrument and meter company systems
One accepted standard can easily realize serial communication function using VISA modules.Programming need to only be realized to VISA serial ports
The correct correct processing for initializing and receiving and sending messages.
As shown in Figure 1, permanent-magnetic synchronous motor stator voltage detecting system is changed in 3S/2S changes, it is included in permanent magnet synchronous motor
It is respectively arranged with the first electromagnetic induction voltage sensor by A phase windings, B phase windings and C group windings in the three-phase windings of stator
1, the second electromagnetic induction voltage sensor 2 and third electromagnetic induction voltage sensor 3, first electromagnetic induction voltage sensing
Device 1, the second electromagnetic induction voltage sensor 2 and third electromagnetic induction voltage sensor 3 can be respectively induced out the A of three-phase windings
The voltage of phase winding, B phase windings and C group windings, the first electromagnetic induction voltage sensor 1, the second electromagnetic induction voltage
Sensor 2 and third electromagnetic induction voltage sensor 3 are respectively the same as the data acquisition based on DSP with serial communication interface module
First signal of system 4 receives pin 5, second signal receives pin 6 and is connected with third signal reception pin 7, the base
Also it is connected with host computer 9 by the interface of serial data communication 8 in the data collecting system 4 of DSP, 9 band of host computer
There is 3S/2S to become the permanent-magnetic synchronous motor stator voltage detection module 10 changed, the 3S/2S becomes the permanent magnet synchronous motor changed
Stator voltage detection module 10 includes three phase static coordinate to two-phase static coordinate conversion module 11, in the host computer 9
Also include VISA modules.It further includes someone that the 3S/2S, which becomes the permanent-magnetic synchronous motor stator voltage detection module 10 changed,
Machine interactive interface, the human-computer interaction interface include operation interface part and display interface part, the operation interface portion
It is divided by becoming the permanent-magnetic synchronous motor stator voltage detecting mould that change to 3S/2S can be passed through after the operating of operation interface
Block 10 sends host computer 9 and instructs；The display interface part is divided into waveform display portion and instrument display portion, described
Waveform display portion is able to detect that voltage number of the stator of selected range interior permanent-magnet synchronous motor under two-phase stationary coordinate system
According to entire change procedure；The instrument display portion can stablize the stator of display permanent magnet synchronous motor in the static seat of two-phase
The data of voltage under mark system.The waveform display portion shows the stator electricity of permanent magnet synchronous motor by waveform display window
The amplitude versus time curve of pressure, the instrument display portion include that there are two arc-shaped scale zone, described two arc-shapeds
Scale zone is respectively intended to indicate a shaft voltage value range and permanent magnetism of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
β shaft voltage value range of the synchronous motor stator under two-phase stationary coordinate system, the lower section of described two arc-shaped scale zones
It is each provided with a pointer shape icon, is respectively arranged with above described two arc-shaped scale zones for showing permanent magnetism
The text box and the β axis under two-phase stationary coordinate system of a shaft voltage value of the synchronous motor stator under two-phase stationary coordinate system
The text box of voltage value.The operation interface part includes serial ports parameter setting part, waveform selection part, waveform shaping part
Divide, control section and waveform display parameters setting unit, the serial ports parameter setting part are used for the ginseng to serial communication
Several initialization, the serial ports parameter setting part include the choice box selected for serial port number and for string to be arranged
The text box of port communications baud rate, the preset selective value in the choice box that serial port number selects that is used for is host computer 9
The serial port number that can be identified, the waveform display parameters setting unit include the modulus of conversion for data IQ formats are arranged
The text box of formula, the text box for cache size is arranged and for the text box of sample frequency, the waveform tune is arranged
Whole point includes the select button in the channel for selecting the data collecting system based on DSP, for choosing whether to being selected
The data collecting system based on DSP channel amplitude measure vernier switch button, for choosing whether to selected
It is vernier switch button that the time in the channel for the data collecting system based on DSP selected measures, selected for showing
The text box of the amplitude in the channel of the data collecting system based on DSP, for showing that selected data based on DSP acquire system
The text box of the time in the channel of system, the text box for vernier graduation value to be arranged and the left and right tie rod moved for waveform,
The control section includes start button, pause button and stop button, and the start button, pause button and stopping are pressed
Button executes startup, operation suspension and the control for terminating operation to being tested waveform respectively, and the waveform selection part includes being used for
A shaft voltage waveform of the selection display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system clicks frame and for selecting display
β shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system clicks frame, thus can by after selection
Waveform display window display corresponding selection is used to select a axis of the display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Voltage oscillogram or for selecting β shaft voltage oscillogram of the display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system.
The 3S/2S becomes the method for changing permanent-magnetic synchronous motor stator voltage detecting system, and steps are as follows：
Step 1：Start 3S/2S changes first and changes permanent-magnetic synchronous motor stator voltage detecting system, the first electromagnetic induction electricity
Pressure sensor 1, the second electromagnetic induction voltage sensor 2 and third electromagnetic induction voltage sensor 3 are respectively to permanent magnet synchronous motor
The voltage of the voltage of A phase windings in the three-phase windings of stator, the voltage of B phase windings and C group windings carries out data acquisition, and handle
The voltage value of A phase windings in the three-phase windings of collected permanent-magnetic synchronous motor stator, the voltage value of B phase windings and C groups around
The voltage value of group is transmitted to the data collecting system 4 based on DSP, and becomes the permanent-magnetic synchronous motor stator changed electricity by 3S/2S
Press detection module 10 run human-computer interaction interface, on human-computer interaction interface serial ports parameter setting part selection serial port number and
Serial communication baud rate, and allow serial communication baud rate with the serial communication interface module in the data collecting system 4 based on DSP
The serial communication baud rate of interior setting is consistent；
Step 2：Become the logical to serial ports elsewhere of the permanent-magnetic synchronous motor stator voltage detection module 10 changed in 3S/2S
Parity check bit, data bits and the stop position of letter are configured, parity check bit, the data ratio to serial communication
The value of special position and stop position setting is respectively the same as being arranged in the serial communication interface module in the data collecting system 4 based on DSP
The parity check bit of serial communication, data bits are consistent with the value that stop position is arranged；
Step 3：In addition in the text box of the translative mode for data IQ formats are arranged, for the text of cache size is arranged
This frame and for be arranged in the text box of sample frequency carry out respectively the translative mode to data IQ formats, cache size and
The setting of sample frequency is carried out by the select button in the channel for selecting the data collecting system based on DSP to being based on DSP
Data collecting system channel selection, by for choosing whether to the selected data collecting system based on DSP
Vernier switch button that the amplitude in channel measures, for choosing whether to the selected data collecting system based on DSP
The vernier switch button that measures of time in channel and the text box for vernier graduation value to be arranged be made whether respectively
The amplitude in the channel of the selected data collecting system based on DSP is measured and is made a choice, whether to selected base
Time in the channel of the data collecting system of DSP, which measures, makes a choice and is arranged vernier graduation value；
Step 4：It is selected to selection by point and shows a shaft voltage of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Waveform clicks frame or for selecting β shaft voltage waveform of the display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Frame is clicked to select the voltage waveform classification shown in waveform display window, this completes Initialize installations；
Step 5：Then after clicking start button, the 3S/2S becomes the permanent-magnetic synchronous motor stator voltage changed
Measurement instruction is just sent to the data collecting system 4 based on DSP, institute by detection module 10 by the interface 8 of serial data communication
The measurement instruction stated includes the information of Initialize installation, and 3S/2S becomes the permanent-magnetic synchronous motor stator voltage detecting changed
Module 10 is provided with the array of the information for preserving current initialization setting in memory, is set every time in preservation current initialization
Before the information set, the first information current initialization setting is stored in the last Initialize installation in the array with the last time
Information compare, if variant, just by current initialization setting information preservation arrive be used for preserve current initialization be arranged
Information array in, if without difference, remained unchanged for preserving the data of array of 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 packet
The measurement instruction of the information of Initialize installation is included, it will be according to the selection in the information of Initialize installation in waveform display window
The voltage waveform classification of display and to the selection in the channel of the data collecting system based on DSP the same voltage waveform acquired in real time
The corresponding voltage data of classification is sent to by the channel of selection in host computer 9；
Step 7：After host computer 9 receives voltage data, 3S/2S becomes the permanent-magnetic synchronous motor stator voltage detecting mould changed
Just setting buffer area stores the voltage data received to block 10, transceiving data that serial communication is every time one group with 4 bytes,
The voltage transmission of data received is the data of IQ formats, is in this way converted into the voltage transmission of data received using format conversion
Waveform truthful data represented by common decimal system signed number, the concrete mode of format conversion is first to judge the voltage received
The sign attribute of transmission of data exports signed number, and signed number can be obtained waveform truthful data, institute using inverse operation
The waveform truthful data stated includes the electricity of the voltage value of the A phase windings in the three-phase windings of permanent-magnetic synchronous motor stator, B phase windings
The voltage value of pressure value and C group windings, the voltage value of the A phase windings in the three-phase windings of the permanent-magnetic synchronous motor stator, B phases
The voltage value of winding and the voltage value of C group windings are respectively Va、VbAnd Vc, 3S/2S becomes the permanent-magnetic synchronous motor stator voltage changed
Three phase static coordinate in detection module 10 is to two-phase static coordinate conversion module 11 according to the three-phase of permanent-magnetic synchronous motor stator
The voltage value of the voltage value of A phase windings in winding, the voltage value of B phase windings and C group windings, the permanent magnet synchronous motor are fixed
The voltage value of the voltage value of A phase windings, the voltage value of B phase windings and C group windings in the three-phase windings of son is led according to formula (1)
Go out a shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system and the β axis electricity under two-phase stationary coordinate system
Pressure value, a shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system and in two-phase stationary coordinate system
Under β shaft voltage values be respectively VaAnd Vβ：
A shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system and in two-phase static coordinate
β shaft voltage values under system are stored in buffer area in case generating observation waveform and are recycled each time when data are stored, and array is all
Rearward displacement can be passed through, the data newly read are stored in buffer area foremost, the data that array tail portion removes will be removed；
Step 8：A shaft voltage value of the permanent-magnetic synchronous motor stator in buffer area under two-phase stationary coordinate system
Or the β shaft voltage values under two-phase stationary coordinate system are sent to the stator that waveform display window is directed to corresponding permanent magnet synchronous motor
Voltage is shown in the form of amplitude versus time curve, or is carved in arc-shaped by pointer shape icon in instrument display portion
It is indicated in degree region and in the corresponding a axis electricity for being used for showing the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Voltage value is shown in the text box of pressure value or the text box of the β shaft voltage values under two-phase stationary coordinate system.Described first
Electromagnetic induction voltage sensor 1, the second electromagnetic induction voltage sensor 2 and third electromagnetic induction voltage sensor 3 are respectively to forever
The voltage of the voltage of A phase windings in the three-phase windings of magnetic-synchro motor stator, the voltage of B phase windings and C group windings is into line number
It can also be by only needing two electromagnetic induction voltage sensors come respectively to permanent-magnetic synchronous motor stator according to the mode of acquisition
The voltage of two phase windings in three-phase windings carries out data acquisition to obtain two in the three-phase windings of permanent-magnetic synchronous motor stator
The voltage value of phase winding, then can be exported by the condition that the sum of voltage value of three-phase windings of permanent-magnetic synchronous motor stator is 0
The voltage value of an other phase winding in the three-phase windings of permanent-magnetic synchronous motor stator.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
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 essence of the invention,
Within the spirit and principles in the present invention, to any simple modification, equivalent replacement and improvement etc. made by above example, still
Belong within the protection domain of technical solution of the present invention.
Claims (5)
1. permanent-magnetic synchronous motor stator voltage detecting system is changed in a kind of 3S/2S changes, it is characterised in that be included in permanent magnet synchronous electric
The first electromagnetic induction voltage sensing is respectively arranged with by A phase windings, B phase windings and C phase windings in the three-phase windings of machine stator
Device, the second electromagnetic induction voltage sensor and third electromagnetic induction voltage sensor, first electromagnetic induction voltage sensing
Device, the second electromagnetic induction voltage sensor and third electromagnetic induction voltage sensor can be respectively induced out the A phases of three-phase windings
The voltage of winding, B phase windings and C phase windings, the first electromagnetic induction voltage sensor, the second electromagnetic induction voltage sensing
Device and third electromagnetic induction voltage sensor are respectively the same as the data collecting system based on DSP with serial communication interface module
First signal receives pin, second signal receives pin and is connected with third signal reception pin, the data based on DSP
Acquisition system is also connected by the interface of serial data communication with host computer, and the host computer is changed with 3S/2S changes
Permanent-magnetic synchronous motor stator voltage detection module, the 3S/2S become the permanent-magnetic synchronous motor stator voltage detection module changed
Include three phase static coordinate to two-phase static coordinate conversion module, also includes VISA modules in the host computer；
It further includes having human-computer interaction interface that the 3S/2S, which becomes the permanent-magnetic synchronous motor stator voltage detection module changed, described
Human-computer interaction interface include operation interface part and display interface part, the operation interface part is by operating boundary
Face can pass through the permanent-magnetic synchronous motor stator voltage detection module that 3S/2S changes are changed and refer to host computer transmission after being operated
It enables；The display interface part is divided into waveform display portion and instrument display portion, and the waveform display portion can be examined
Measure the entire change procedure of voltage data of the stator of selected range interior permanent-magnet synchronous motor under two-phase stationary coordinate system；Institute
The instrument display portion stated can stablize the data of voltage of the stator of display permanent magnet synchronous motor under two-phase stationary coordinate system.
2. permanent-magnetic synchronous motor stator voltage detecting system is changed in 3S/2S changes according to claim 1, it is characterised in that institute
The waveform display portion stated shows the amplitude versus time curve of the stator voltage of permanent magnet synchronous motor, institute by waveform display window
The instrument display portion stated includes that there are two arc-shaped scale zones, and described two arc-shaped scale zones are respectively intended to indicate
A shaft voltage value range and permanent-magnetic synchronous motor stator of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system are quiet in two-phase
The only β shaft voltage value ranges under coordinate system are each provided with a pointer shape below described two arc-shaped scale zones
Icon is respectively arranged with for showing that permanent-magnetic synchronous motor stator is quiet in two-phase above described two arc-shaped scale zones
The only text box of a shaft voltage values under coordinate system and the text box of the β shaft voltage values under two-phase stationary coordinate system.
3. permanent-magnetic synchronous motor stator voltage detecting system is changed in 3S/2S changes according to claim 2, it is characterised in that institute
The operation interface part stated includes serial ports parameter setting part, waveform selection part, waveform shaping part point, control section and wave
Shape display parameters setting unit, the serial ports parameter setting part is used for the initialization to the parameter of serial communication, described
Serial ports parameter setting part includes the choice box selected for serial port number and the text for serial communication baud rate to be arranged
This frame, described is used for the serial port that preset selective value can identify for host computer in the choice box that serial port number selects
Number, the waveform display parameters setting unit includes the text box of the translative mode for data IQ formats are arranged, for setting
It sets the text box of cache size and for the text box of sample frequency is arranged, the waveform shaping part point includes being used for selecting
The select button in the channel of the data collecting system based on DSP, for choosing whether to selected the data acquisition based on DSP
Vernier switch button that the amplitude in the channel of system measures, for choosing whether to adopt the selected data based on DSP
Vernier switch button that the time in the channel of collecting system measures, for showing that the selected data based on DSP acquire system
The text box of the amplitude in the channel of system, channel for showing the selected data collecting system based on DSP time text
This frame, the text box for vernier graduation value to be arranged and the left and right tie rod moved for waveform, the control section include
Start button, pause button and stop button, the start button, pause button and stop button respectively hold tested waveform
Row starts, operation suspension and the control for terminating operation, the waveform selection part include for selecting to show permanent magnet synchronous electric
A shaft voltage waveform of the machine stator under two-phase stationary coordinate system clicks frame and for selecting to show that permanent-magnetic synchronous motor stator exists
β shaft voltage waveforms under two-phase stationary coordinate system click frame, thus can be by being shown pair in waveform display window after selection
Should select for select to show a shaft voltage oscillogram of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system or be used for
Selection shows β shaft voltage oscillogram of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system.
4. 3S/2S according to claim 3 becomes the stator voltage for changing permanent-magnetic synchronous motor stator voltage detecting system
Detection method, which is characterized in that steps are as follows：
Step 1：Start 3S/2S changes first and change permanent-magnetic synchronous motor stator voltage detecting system, the first electromagnetic induction voltage passes
Sensor, the second electromagnetic induction voltage sensor and third electromagnetic induction voltage sensor are respectively to the three of permanent-magnetic synchronous motor stator
The voltage of the voltage of A phase windings in phase winding, the voltage of B phase windings and C phase windings carries out data acquisition, and collected
The voltage of the voltage value of A phase windings in the three-phase windings of permanent-magnetic synchronous motor stator, the voltage value and C phase windings of B phase windings
Value is transmitted to the data collecting system based on DSP, and becomes the permanent-magnetic synchronous motor stator voltage detection module changed by 3S/2S
Human-computer interaction interface is run, serial ports parameter setting part selection serial port number and serial communication baud on human-computer interaction interface
Rate, and allow serial communication baud rate with the serial ports being arranged in the serial communication interface module in the data collecting system based on DSP
Communication baud rate is consistent；
Step 2：In the permanent-magnetic synchronous motor stator voltage detection module that 3S/2S changes are changed 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 of stop position setting is respectively the same as the serial communication being arranged 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 arranged；
Step 3：In addition in the text box of the translative mode for data IQ formats are arranged, for the text box of cache size is arranged
And for the translative mode, cache size and sampling that are carried out respectively in the text box of sample frequency to data IQ formats is arranged
The setting of frequency is carried out by the select button in the channel for selecting the data collecting system based on DSP to the number based on DSP
According to the selection in the channel of acquisition system, by for choosing whether the channel to the selected data collecting system based on DSP
Amplitude measure vernier switch button, for choosing whether to the logical of the selected data collecting system based on DSP
The vernier switch button that the time in road measures and the text box for vernier graduation value to be arranged are made whether respectively to quilt
The amplitude in the channel of the data collecting system based on DSP of selection, which measures, to make a choice, whether is based on DSP to selected
Time in channel of data collecting system measure and make a choice and be arranged vernier graduation value；
Step 4：It is selected to selection by point and shows a shaft voltage waveform of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Click frame or for selecting clicking for β shaft voltage waveform of the display permanent-magnetic synchronous motor stator under two-phase stationary coordinate system
Frame selects the voltage waveform classification shown in waveform display window, and this completes Initialize installations；
Step 5：Then after clicking start button, the 3S/2S becomes the permanent-magnetic synchronous motor stator voltage detecting changed
Measurement instruction is just sent to the data collecting system based on DSP, the measurement by module by the interface of serial data communication
Instruction includes the information of Initialize installation, and 3S/2S becomes including the permanent-magnetic synchronous motor stator voltage detection module changed
Be provided in depositing for preserve current initialization setting information array, every time preserve current initialization setting information it
Before, first the information of current initialization setting compared with the information for the last Initialize installation that the last time is stored in the array
Compared with if variant, just by the information preservation of current initialization setting to the number of the information for preserving current initialization setting
In group, if without difference, remained unchanged for preserving the data of array for the information that current initialization is arranged；
Step 6：When the data collecting system based on DSP receive via serial data communication interface transmit come include at the beginning of
The measurement instruction of the information of beginningization setting, will show according to the selection in the information of Initialize installation in waveform display window
Voltage waveform classification and to the selection in the channel of the data collecting system based on DSP the same voltage waveform classification phase acquired in real time
Corresponding voltage data is sent to by the channel of selection in host computer；
Step 7：After host computer receives voltage data, 3S/2S becomes the permanent-magnetic synchronous motor stator voltage detection module changed just
Buffer area is set to store the voltage data received, the transceiving data that serial communication is every time one group with 4 bytes receives
Voltage data be IQ formats data, the voltage data received is converted into the common decimal system using format conversion in this way
Waveform truthful data represented by signed number, the concrete mode of format conversion are first to judge the positive and negative of the voltage data received
Number attribute exports signed number, and signed number can be obtained waveform truthful data using inverse operation, and the waveform is true
Data include the voltage value of the A phase windings in the three-phase windings of permanent-magnetic synchronous motor stator, the voltage value of B phase windings and C phases around
The voltage value of group, the voltage value of the A phase windings in the three-phase windings of the permanent-magnetic synchronous motor stator, the voltage of B phase windings
The voltage value of value and C phase windings is respectively Va, VbAnd Vc, 3S/2S become the permanent-magnetic synchronous motor stator voltage detection module changed
In three phase static coordinate to two-phase static coordinate conversion module according to the A phases in the three-phase windings of permanent-magnetic synchronous motor stator around
The voltage value of the voltage value of group, the voltage value of B phase windings and C phase windings exists according to formula (1) export permanent-magnetic synchronous motor stator
A shaft voltages value under two-phase stationary coordinate system and the β shaft voltage values under two-phase stationary coordinate system, the permanent magnet synchronous electric
A shaft voltage value of the machine stator under two-phase stationary coordinate system and the β shaft voltage values under two-phase stationary coordinate system are respectively Va
And Vβ：
A shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system and under two-phase stationary coordinate system
β shaft voltage values be stored in buffer area in case generating observation waveform and recycled each time when data are stored, array all can be through
It crosses rearward displacement and the data newly read is stored in buffer area foremost, the data that array tail portion removes will be removed；
Step 8：A shaft voltage value of the permanent-magnetic synchronous motor stator in buffer area under two-phase stationary coordinate system or
β shaft voltage values under two-phase stationary coordinate system are sent to the stator voltage that waveform display window is directed to corresponding permanent magnet 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
It is indicated in domain and is used for showing a shaft voltage value of the permanent-magnetic synchronous motor stator under two-phase stationary coordinate system corresponding
Text box or the β shaft voltage values under two-phase stationary coordinate system text box in show voltage value.
5. 3S/2S according to claim 4 becomes the stator voltage for changing permanent-magnetic synchronous motor stator voltage detecting system
Detection method, it is characterised in that the first electromagnetic induction voltage sensor, the second electromagnetic induction voltage sensor and the third
Electromagnetic induction voltage sensor is respectively to the voltage of the A phase windings in the three-phase windings of permanent-magnetic synchronous motor stator, B phase windings
The voltage of voltage and C phase windings carry out data acquisition mode can also by only need two electromagnetic induction voltage sensors come
Data acquisition is carried out to the voltage of two phase windings in the three-phase windings of permanent-magnetic synchronous motor stator to obtain permanent-magnet synchronous respectively
The voltage value of two phase windings in the three-phase windings of motor stator, then three-phase windings by permanent-magnetic synchronous motor stator voltage
The condition that the sum of value is 0 can export the voltage value of the other phase winding in the three-phase windings of permanent-magnetic synchronous motor stator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410363999.6A CN104166041B (en) | 2014-07-28 | 2014-07-28 | Permanent-magnetic synchronous motor stator voltage detecting system and method are changed in 3S/2S changes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410363999.6A CN104166041B (en) | 2014-07-28 | 2014-07-28 | Permanent-magnetic synchronous motor stator voltage detecting system and method are changed in 3S/2S changes |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103516279A (en) * | 2013-09-17 | 2014-01-15 | 广东工业大学 | Permanent magnet synchronous motor control chip based on FPGA |
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| JP5473289B2 (en) * | 2008-10-07 | 2014-04-16 | 三菱重工業株式会社 | Control device and control method for permanent magnet type synchronous motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103516279A (en) * | 2013-09-17 | 2014-01-15 | 广东工业大学 | Permanent magnet synchronous motor control chip based on FPGA |
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| Title |
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| 基于LabVIEW和DSP串口的多通道电机参数采集系统;徐华中 等;《电子测量技术》;20110430;第34卷(第4期);第66-69页 * |
| 基于LabVIEW的步进电机测控系统设计;董志斌;《企业技术开发》;20130430;第32卷(第11期);第9-10页 * |
| 基于LabVIEW的永磁同步电机测试系统研究;吴丽花;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》》;20140515(第5期);第C042-120页 * |
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Effective date of registration: 20210608 Address after: 215000 455 and 459 Juyuan street, Yuanhe street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Suzhou Puzhi safety training Co.,Ltd. Address before: No. 688, Tianshengqiao Avenue, yongyang Town, Lishui District, Nanjing City, Jiangsu Province, 210000 Patentee before: NANJING INSTITUTE OF RAILWAY TECHNOLOGY |
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