CN113794408A - Method for detecting rotation data of synchronous motor - Google Patents
Method for detecting rotation data of synchronous motor Download PDFInfo
- Publication number
- CN113794408A CN113794408A CN202110888430.1A CN202110888430A CN113794408A CN 113794408 A CN113794408 A CN 113794408A CN 202110888430 A CN202110888430 A CN 202110888430A CN 113794408 A CN113794408 A CN 113794408A
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- China
- Prior art keywords
- fault
- synchronous motor
- motor
- detecting
- rotation
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a method for detecting rotating data of a synchronous motor, wherein a rotating fault detection algorithm comprises a hardware detection method and a software logic detection method; hardware detection method: reading a fault state word by configuring a digital converter in the CPLD controller, and analyzing fault information according to the fault state word; software logic detection method: and judging the rotary transformer fault through a system logic function. The invention detects the working state of the rotary transformer in real time, carries out emergency treatment if the rotary transformer has problems, ensures the reliability of the motor, reduces the dependence on the rotary transformer, and completes the rotary transformer detection and the emergency treatment through software design.
Description
Technical Field
The invention relates to the field of synchronous motor rotation variation detection algorithms, in particular to a method for detecting synchronous motor rotation variation data.
Background
The rotational deformation fault generally has more generation reasons, namely the reasons are related to electromagnetic compatibility, poor contact and jitter; spin-hard decoding and soft decoding; for example, hard decoding is used as a main decoding mode, and the hard decoding failure can be checked through soft decoding.
At present, with the development of servo motors, requirements for intellectualization and automation are higher and higher in the field of airborne equipment and the field of fuel systems, particularly the requirements for reliability are stricter and stricter, and for the situation, a resolver acquisition circuit which is a key factor influencing motor control parameters needs to detect resolver faults in real time, so that the invention provides a method for detecting resolver data of a synchronous motor and emergency processing.
Disclosure of Invention
The present invention is directed to a method for detecting rotational variation data of a synchronous motor, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for detecting the rotation data of a synchronous motor comprises a hardware detection method and a software logic detection method;
hardware detection method: reading a fault state word by configuring a digital converter in the CPLD controller, and analyzing fault information according to the fault state word;
software logic detection method: and judging the rotary transformer fault through a system logic function.
Preferably, the system further comprises a position observation method and an emergency processing method, wherein the position observation method comprises the steps of applying external force to enable the motor to rotate clockwise, observing whether the position of the motor is reduced at a constant speed or not, and observing whether numerical values are continuous or not, and otherwise, observing a rotation fault.
Preferably, the emergency treatment method further comprises switching to the non-position control system when the rotation fault is detected, and calculating the position and the rotation speed through a non-position algorithm.
Preferably, the system logic function is capable of receiving a motor start signal, feeding back rotation speed information, and position acquisition state information.
Preferably, the digitizer is an RDC 1210-type converter.
The invention has the beneficial effects that: the invention detects the working state of the rotary transformer in real time, carries out emergency treatment if the rotary transformer has problems, ensures the reliability of the motor, reduces the dependence on the rotary transformer, and completes the rotary transformer detection and the emergency treatment through software design.
Drawings
FIG. 1 is a schematic diagram of the software logic of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention provides a technical solution: a method for detecting the rotation data of synchronous motor features that the rotation fault detection algorithm includes hardware detection method and software logic detection method;
hardware detection method: reading a fault state word by configuring a digital converter in the CPLD controller, and analyzing fault information according to the fault state word; the digital converter adopts an RDC1210 type converter;
software logic detection method: the rotation fault is judged through the system logic function, and the system logic function can receive a motor starting signal, feed back rotating speed information and position acquisition state information.
Example two
A method for detecting the rotation data of a synchronous motor further comprises a position observation method and an emergency processing method, wherein the position observation method comprises the steps of applying external force to enable the motor to rotate clockwise, observing whether the position of the motor is reduced at a constant speed or not, and observing whether the numerical value is continuous or not, and otherwise, judging that the rotation is a rotation fault.
EXAMPLE III
The method for detecting the rotation data of the synchronous motor further comprises an emergency treatment method, wherein the emergency treatment method comprises the steps of switching to a non-position control system when a rotation fault is detected, and calculating the position and the rotating speed through a non-position algorithm.
The invention relates to a rotation fault detection algorithm based on angle and rotation speed data, which is characterized in that a starting signal of a motor, an actual rotation speed signal of the motor and a position signal of the motor are required to be acquired in advance, whether the signals of the motor are abnormal or not is judged rapidly through a judgment module, when the starting signal is effective, rotation speed feedback exists, the position is not refreshed, the rotation fault is not generated, when the starting signal is invalid, the position is continuously updated, the rotation fault is generated, whether the rotation fault occurs in the motor or not is determined, and when the rotation fault is detected, the rotation fault is switched to a non-position control system.
The invention relates to a rotation transformation fault detection algorithm based on angle and rotating speed data, which comprises the steps of firstly checking physical wiring, confirming whether a rotation transformation line is connected in a wrong way or is open-circuited, rotating a rotating shaft of a motor, determining feedback of a rotation transformation signal, if feedback exists, enabling the signal to be lost, possibly solving the interference problem, and if no feedback exists, possibly solving the problem of a rotary encoder; and then, whether the rotary-change signal waveform has deformity or whether the amplitude meets the amplitude requirement of the rotary change is judged, if no problem exists, the rotary-change signal waveform of the inlet of the decoding chip is judged, and the waveform of the error reporting foot of the decoding is judged by the colleague.
Detecting a rotational-transformation positive rotational resistance when the driving motor fails, namely a rotational-transformation fault, and the normal resistance value is 20 ohms; checking the rotary-variable residual rotary resistor, wherein the normal resistance value is 20 ohms; the resistance of the excitation signal is checked and the normal resistance is 10 ohms.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A method for detecting rotation data of a synchronous motor is characterized in that: the rotation fault detection algorithm comprises a hardware detection method and a software logic detection method;
hardware detection method: reading a fault state word by configuring a digital converter in the CPLD controller, and analyzing fault information according to the fault state word;
software logic detection method: and judging the rotary transformer fault through a system logic function.
2. The method of claim 1, wherein the step of detecting the rotation data of the synchronous motor comprises: the position observation method comprises the steps of applying external force to enable the motor to rotate clockwise, observing whether the position of the motor is reduced at a constant speed or not and whether numerical values are continuous or not, and otherwise, judging that the motor is in a rotary deformation fault.
3. The method of claim 1, wherein the step of detecting the rotation data of the synchronous motor comprises: and the emergency processing method comprises the steps of switching to a non-position control system when the rotation fault is detected, and calculating the position and the rotating speed through a non-position algorithm.
4. The method of claim 1, wherein the step of detecting the rotation data of the synchronous motor comprises: the system logic function can receive a motor starting signal, feedback rotating speed information and position acquisition state information.
5. The method of claim 1, wherein the step of detecting the rotation data of the synchronous motor comprises: the digital converter adopts an RDC1210 type converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888430.1A CN113794408A (en) | 2021-08-03 | 2021-08-03 | Method for detecting rotation data of synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888430.1A CN113794408A (en) | 2021-08-03 | 2021-08-03 | Method for detecting rotation data of synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113794408A true CN113794408A (en) | 2021-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110888430.1A Pending CN113794408A (en) | 2021-08-03 | 2021-08-03 | Method for detecting rotation data of synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113794408A (en) |
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2021
- 2021-08-03 CN CN202110888430.1A patent/CN113794408A/en active Pending
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