CN116760321A - Universal motor driving system and parameter debugging method thereof - Google Patents
Universal motor driving system and parameter debugging method thereof Download PDFInfo
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- CN116760321A CN116760321A CN202311040388.3A CN202311040388A CN116760321A CN 116760321 A CN116760321 A CN 116760321A CN 202311040388 A CN202311040388 A CN 202311040388A CN 116760321 A CN116760321 A CN 116760321A
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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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0811—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for dc motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0854—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load responsive to rate of change of current, couple or speed, e.g. anti-kickback protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/26—Devices for sensing voltage, or actuated thereby, e.g. overvoltage protection devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/27—Devices for sensing current, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a universal motor driving system and a parameter debugging method thereof, wherein the system is connected with a direct current motor, an angle sensor and an upper computer, and comprises the following components: the digital processing module is used for receiving the sensing signals, the current signals and the voltage signals of the motor, and calculating and outputting driving signals for driving the direct current motor based on user configuration information; the driving module is connected with the digital processing module and is used for receiving the driving signal and outputting the driving signal to the direct current motor; the information interaction module is connected with the upper computer and the digital processing module and is used for sending and/or receiving the user configuration information; and the power supply rectifying and filtering module is used for providing a plurality of power supply voltages with constant magnitudes for each module in the universal motor driving system. According to the method and the device, direct-current motors with various interface types can be controlled based on multiple parameters, and the functions of overcurrent protection, overspeed protection and position limiting protection are achieved.
Description
Technical Field
The invention belongs to the field of motor control, and particularly relates to a universal motor drive and a parameter debugging method thereof.
Background
The direct current motor is a rotating motor capable of converting direct current electric energy into mechanical energy, has the advantage of good speed regulation performance, can realize uniform and smooth stepless speed regulation, and is generally used in a mode of regulating the rotation speed of mechanical components. One factor in measuring motor efficiency is the starting torque, and high torque electrodes can achieve speed regulation uniformly and economically. The direct current motor has wide application and can be related to the fields of aerospace, machine tools, printing equipment, packaging equipment, textile equipment, laser processing equipment, robots, automatic production lines and the like. In some special scenes with relatively high requirements on process precision, machining efficiency, working reliability and the like, the performance requirement of the motor is relatively high. In this context, the control of the motor drive directly affects the performance of the motor.
The current motor driver is generally a customized product, has single function, simple interface and small application range, and one of the most prominent limitations is that the motor driver can only control one type of motor, and has limitation in application.
Disclosure of Invention
In order to solve the above problems, a first aspect of the present invention provides a universal motor driving system, wherein the system is connected with a dc motor, an angle sensor and an upper computer, comprising: the digital processing module is used for receiving the sensing signals, the current signals and the voltage signals of the motor, and calculating and outputting driving signals for driving the direct current motor based on user configuration information; the driving module is connected with the digital processing module and is used for receiving the driving signal and outputting the driving signal to the direct current motor; the information interaction module is connected with the upper computer and the digital processing module and is used for sending and/or receiving the user configuration information; and the power supply rectifying and filtering module is used for providing a plurality of power supply voltages with constant magnitudes for each module in the universal motor driving system.
Preferably, the digital processing module comprises a PWM driving unit, an analog-to-digital conversion unit, a signal transmission unit and a sensing signal unit.
Preferably, the sensor signal unit has at least one type of interface, which can be selected from the range of QEP interfaces, USART interfaces, SPI interfaces and SSI interfaces.
Preferably, the interface of the information transmission unit is of various types, which can be a USART unit or an I2CI unit.
Preferably, the driving module includes a pre-driving unit and an H-bridge circuit unit.
Preferably, the power supply rectifying and filtering module comprises a general filtering circuit and a plurality of rectifying and filtering circuits conducted at a constant voltage.
Preferably, the system further comprises: and the rotation angle and rotation speed detection module is used for sending and/or receiving the motor sensing signals.
Preferably, the system further comprises: and the phase current detection module is used for providing an analog current signal of the direct current motor for the digital processing module.
Preferably, the system further comprises: and the voltage detection module is used for providing an analog voltage signal of the direct current motor for the digital processing module.
In addition, a second aspect of the present invention provides a method for debugging a driving parameter of a general motor, including: initializing motor parameters; controlling the motor to enter a working mode according to the initialized motor parameters; debugging motor parameters, and controlling the motor according to the debugged motor parameters; and saving the debugged motor parameters.
The beneficial effects are that: the direct current motor with various interface types can be controlled based on multiple parameters, has the function of overcurrent protection, and can also carry out overspeed protection and position limiting protection by automatically or manually debugging parameters when the motor runs.
Drawings
Fig. 1 is a schematic view showing an application scenario of a universal motor drive system according to the present invention;
fig. 2 is a schematic diagram showing the structure of a general motor drive system according to the present invention;
FIG. 3 is a schematic diagram showing the connection of a power rectifying and filtering module to surrounding modules in a universal motor drive system according to the present invention;
FIG. 4 is a diagram illustrating a generic motor drive parameter tuning method in accordance with the present invention;
fig. 5 is a schematic diagram showing a parameter debugging flow refined in a general motor driving parameter debugging method according to the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The present disclosure is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The direct current motor is a rotary motor that converts direct current electric energy into mechanical energy, and controls mechanical components by inputting direct current to the direct current motor, and outputting the direct current to the direct current motor. The types of the direct current motors are various, such as a direct current brushless motor, a permanent magnet synchronous motor, a direct current torque motor, a servo motor, and the like. And the type of connection interface of different direct current motors is not the only universal interface. In order to operate a dc motor, a corresponding drive system must be provided, which is often designed specifically for the technical case of the dc motor, in particular for the type of interface.
The driving system provided by the invention can be compatible with direct current motors with various interfaces, has universality and greatly improves the practicability of the driving system in actual scenes.
Fig. 1 is a schematic view showing an application scenario of a universal motor driving system according to the present invention.
In the present embodiment, referring to fig. 1, a universal motor drive system 1 is electrically connected to an angle sensor 2, a dc motor 3, and an upper computer 4, respectively. The angle sensor 2 inputs sensing data to the universal motor drive system 1. The sensing data, including the rotational angle and rotational speed, are obtained from the dc motor 3 in real time, reflecting the movement or state of the mechanical components on the dc motor. The direct current motor 3 receives the drive signal of the universal motor drive system 1 and controls the change in motion or state of the mechanical components on the motor.
The host computer 4 is a computer that provides an interactive operation interface to a user. The upper computer 4 is provided with a user output interface for displaying relevant control parameters of the direct current motor to a user. The control parameters include current loop, speed loop and position loop control parameters, and the control parameters are processed by the universal motor driving system 1 to output driving signals to the direct current motor 3, so that the direct current motor 3 is controlled. The upper computer 4 also provides a user input interface for a user, specifically, an interactive operation interface of the upper computer is provided with an interactive frame and receives information input by the user.
Fig. 2 is a schematic diagram showing the structure of a general motor drive system according to the present invention.
In the present embodiment, referring to fig. 2, the universal motor drive system 1 includes a digital processing module 11, a drive module 12, a phase current detection module 13, a voltage detection module 14, a power rectification filter module 15, and an information interaction module 16.
The digital processing module 11 includes a sensing signal unit 111, a PWM driving unit 112, an analog-to-digital conversion unit 113, and an information transmission unit 114. The digital processing module 11 is a single-chip microcomputer entirely including a main control chip and peripheral design circuits.
In a preferred embodiment, the sensor signal unit 111 receives a sensor signal from the rotation angle and rotation speed detection module 10, which is generated by the angle sensor 2 and input to the rotation angle and rotation speed detection module 10, reflecting the movement or state of the dc motor 3. The sensing signal unit 111 performs calculation processing on the sensing signal in the digital processing module 11, and generates a control signal input to the PWM driving unit 112. The PWM driving unit 112 outputs a PWM signal to the driving module 12 after receiving the control signal. The driving module 12 is used for converting the PWM signal into a driving signal for driving the dc motor 3 to move.
In a preferred embodiment, the sensor signal unit 111 is a module with a variety of switchable interfaces, which may be selected from the range of QEP interfaces, USART interfaces, SPI interfaces and SSI interfaces. The advantage of such a design of the universal motor drive system 1 is that it is compatible with different interface types of direct current motors 3, which increases the adaptation motor range of the drive system and thus can be referred to as a universal motor drive system.
For example, when the interface configured by the sensor signal unit 111 is a QEP interface, the interface of the dc motor 3 is a QEP interface at this time. QEP, USART, SPI and SSI communication protocols.
In the preferred embodiment, the analog-to-digital conversion unit 113 is an ADC unit that converts an analog signal input into the digital processing module 11 into a digital signal, and a single-chip microcomputer having a digital calculation function generally requires such a conversion unit so that the digital signal can be processed instead of the sampled analog signal.
In a preferred embodiment, the information transmission unit 114 is connected to an information interaction module 16 outside the digital processing module 11 for receiving and/or transmitting information related to control parameters of the direct current motor 3. Alternatively, the interface of the information transmission unit 114 may be of various types, and the information transmission unit 114 formed by various types of interfaces may be a USART unit or an I2CI unit, similar to the sensor signal unit 111.
Based on the functions of the analog-to-digital conversion unit 113 described above, the phase current detection module 13 and the voltage detection module 14 in the universal motor drive system 1 are respectively connected to the analog-to-digital conversion unit 113. The phase current detection module 13 includes a sampling resistor, a current amplifier, and a current detection filter circuit. The voltage detection module 14 includes a voltage dividing resistor, a clamp diode, and a voltage detection filter circuit. Wherein the phase current detection module 13 provides current information during operation of the dc motor 3, which information is an analog signal, and the voltage detection module 14 provides voltage information during operation of the dc motor 3, which information is also an analog signal. Thus, the modules 13 and 14 provide analog signals for conversion into digital signals to the analog-to-digital conversion unit 113, providing current and/or voltage information about the direct current motor 3.
Based on the functions of the rotation angle and rotation speed detection module 10, the phase current detection module 13 and the voltage detection module 14, the movement or state condition of the mechanical components of the direct current motor 3, and the current and voltage information during operation can be determined.
The digital processing module 11 has a function of receiving information and outputting a control signal. Examples of the output control signal will be discussed below.
The driving module 12 includes a pre-driving unit 121 and an H-bridge circuit unit 122. Specifically, the pre-driving unit 121 is designed as a half-bridge driving circuit, and the pre-driving unit 121 is used for enhancing the strength of the input PWM signal, so as to enhance the capability of the output driving signal to drive the dc motor 3. The specific model of the pre-drive unit 121 may be the IR2103 type. In addition, the pre-driving unit 121 controls the on or off state of the MOS transistor on the H-bridge circuit unit 122. Specifically, the H-bridge circuit unit 122 is a 3-way H-bridge circuit formed of 6N-channel field effect transistors (MOS transistors) for outputting a driving signal for driving the dc motor 3. In an alternative embodiment, the MOS tube is selected to be of a suitable model according to the rated current indicated by the dc motor 3.
The information interaction module 16 is connected with the information transmission unit 114 in the digital processing module 11 and the upper computer 4. In one example, the information interaction module 16 receives parameters related to controlling the dc motor 3 from the host computer 4 and outputs the parameters to the information transmission unit 114. It should be noted that the parameters related to controlling the dc motor 3 can be determined by the user interface provided by the host computer 4 in the present invention, or can be adjusted by the calculation of the system itself and displayed back on the user interface of the host computer 4. In another example, the digital processing module 11 outputs the parameters related to controlling the dc motor 3 to the information interaction module 16 through the information transmission unit 114, and the information interaction module 16 outputs the parameters to the host computer 4 and displays the parameters on the user interface.
The power rectifier and filter module 15 is designed to provide different levels of voltage power to the various modules in the universal motor drive system 1. The design of the power rectification filter module 15 will be discussed below.
Fig. 3 is a schematic diagram showing connection of a power rectifying and filtering module with surrounding modules in the universal motor drive system according to the present invention.
In this embodiment, referring to fig. 3, an external power is input to the power rectifying and filtering module 15, and the module 15 communicates with other modules in the universal motor drive system 1.
The power rectifying and filtering module 15 specifically includes a general filtering circuit 151 and a plurality of rectifying and filtering circuits that are conducted at a constant voltage, and the voltage value of the conducted voltage is different according to the module object output by the filtering circuits. Preferably, the voltage values of the on-voltage are 12V, 5V, 3.3V, respectively. The 12V rectifying and filtering circuit 1521 is configured to provide a voltage to the driving module 12, the 5V rectifying and filtering circuit 1522 is configured to provide a voltage to the rotation angle and rotation speed detecting module 10 and the information interaction module 16, and the 3.3V rectifying and filtering circuit 1523 is configured to provide a voltage to the digital processing module 11.
Ideally, the input voltage of the external power supply is 12V to 36V, and after the processing of the power supply filtering and rectifying module 15, the adjusted power supply voltage can be input to each module of the universal motor driving system 1.
The power rectifying and filtering module 15 is formed by combining a plurality of chips, and the number of the chips is N. Preferably, the number of N is 3. The design of the power rectifier filter module 15 provides the advantage of providing overcurrent protection for the operation of the various modules of the universal motor drive system 1: the input voltage is generally high, and there are different levels of difference between the modules with respect to the operation voltage, and if the power is input indiscriminately, overload or the like may be caused. Preferably, the chip type of the power rectification filter module 15 is selected from SGM61410.
Fig. 4 is a diagram showing a general motor driving parameter debugging method according to the present invention.
In this embodiment, referring to fig. 4, the universal motor driving parameter debugging method 400 includes: step S401: initializing motor parameters; step S402: controlling the motor to enter a working mode according to the initialized motor parameters; step S403: debugging motor parameters, and controlling the motor according to the debugged motor parameters; step S404: and saving the debugged motor parameters.
In the present embodiment, the upper computer 4 executes the above method steps to achieve the control of the dc motor 2 by the user through the user interface and obtain the operating state information of the dc motor 2.
In step S401, the upper computer 4 stores the last configured motor parameter. In the new round of parameter configuration, the motor parameters stored in the upper computer 4 are read first and displayed on the user interface.
In step S402, the initialized motor parameters include a current parameter, a rotational speed parameter, a position parameter, and a rotational angle parameter. At this time, the motor parameters have been configured in step S401, but the parameters have not been debugged, but the dc motor 2 has been started and operated according to the configured parameters.
In the general motor driving parameter debugging method 400 provided by the present invention, the operation modes of the motor can be roughly divided into three types: current mode, rotational speed mode, and position/rotational angle mode. This is distinguished based on the category of the parameter controlling the operation of the motor. For example, when the motor is operating in a current mode, the parameter controlling the operation of the motor is a current parameter among the configuration parameters. At this time, the universal motor driving system 1 is in the current closed loop mode, and the digital processing module 11 receives the current parameter among the configuration parameters as an output, i.e., a driving signal. Whereby the system 1 controls the movement or state of the motor in such a way that the magnitude of the motor current is controlled.
Similar to the above, when the motor is operated in the rotational speed mode, the universal motor drive system 1 is in the current and rotational speed dual closed loop mode, and the digital processing module 11 receives the current parameter and the rotational speed parameter of the configuration parameters as outputs, i.e., drive signals. Whereby the system 1 controls the motor in such a way that the current level and the rotational speed level of the mechanical components of the motor are controlled.
Similar to the above, when the motor is operated in the position/rotation angle mode, the universal motor drive system 1 is in the current, rotation speed and position three-closed loop mode, and the motor is controlled in three aspects of current, rotation speed and position.
In step S403, the motor parameter is debugged, and the motor is controlled according to the debugged motor parameter. At this time, the user can input a debug instruction to the host computer 4 and cause the universal motor drive system 1 to enter a debug mode. Debug modes fall into three categories: the system comprises a current loop debugging mode, a speed loop debugging mode and a position loop debugging mode, wherein the three debugging modes are executed in sequence, each debugging mode enters an automatic debugging mode after parameters are acquired, and whether further manual debugging is further carried out is determined according to a debugging result. Specifically, taking current loop debugging as an example, the system 1 acquires motor related parameters, and enters automatic debugging, after the automatic debugging is finished, debugging result information is output through the information interaction module 16, when the debugging result meets the requirement, the next type of debugging mode is entered, and when the debugging result does not meet the requirement, manual debugging is performed to correct the parameters.
In step S404, the debugged motor parameters are saved.
Here, the information interaction module 16 transmits and/or receives the debugged motor parameters. The upper computer 4 is provided with a memory capable of storing motor parameters.
Fig. 5 is a schematic diagram showing a parameter debugging flow refined in a general motor driving parameter debugging method according to the present invention.
In this embodiment, see fig. 5, step S403 further includes: step S4031: entering a current loop debugging mode; step S4032: entering a speed loop debugging mode; step S4033: and entering a position loop debugging mode.
In step S4031, in order to make the output control signal more accurate, in the current loop debug mode, a specific type of the dc motor is obtained, for example, whether the motor is a brushed motor, a brushless motor, or a servo motor. Motor-related control parameters include, but are not limited to: the motor comprises an overall resistance value, an inductance value, a locked rotor current peak value, a continuous locked rotor current value, a rated working voltage and a rated working rotating speed. If the motor is of the brushless motor type, the parameters may also include the pole pair number of the input motor.
In addition to the above-described manner in which the user inputs a debug instruction to the host computer 4 to debug the control motor, the system 1 also has an automatic debug function. The user inputs an automatic debugging instruction on the upper computer 4, the universal motor driving system 1 enters an automatic debugging mode, after the debugging is finished, the universal motor driving system 1 outputs debugging result information through the information interaction module 16, the information interaction module 16 further sends the debugging result information to the upper computer 4, and the upper computer 4 displays the debugging result information through a user interface.
Further, the user further controls the motor according to the debugging result information, specifically whether to debug in a current loop mode. If the user has a higher demand for the performance of the universal motor drive system 1, the user selects the manual mode via the user interface.
In step S4032, after the current loop debugging is completed, a speed loop debugging mode is entered, and the user interface displays a prompt for inputting the maximum speed and maximum acceleration of the motor.
In step S4033, after completion of the speed loop debugging, the position loop debugging mode is entered. The user interface displays the input of the limiting requirements for the range of motion, maximum speed, maximum acceleration of the motor.
The invention provides a universal motor driving system, which is connected with a direct current motor, an angle sensor and an upper computer, and comprises: the digital processing module is used for receiving the sensing signals, the current signals and the voltage signals of the motor, and calculating and outputting driving signals for driving the direct current motor based on user configuration information; the driving module is connected with the digital processing module and is used for receiving the driving signal and outputting the driving signal to the direct current motor; the information interaction module is connected with the upper computer and the digital processing module and is used for sending and/or receiving the user configuration information; and the power supply rectifying and filtering module is used for providing a plurality of power supply voltages with constant magnitudes for each module in the universal motor driving system.
The invention also provides a parameter debugging method of the universal motor driving system, which comprises the following steps: initializing motor parameters; controlling the motor to enter a working mode according to the initialized motor parameters; debugging motor parameters, and controlling the motor according to the debugged motor parameters; and saving the debugged motor parameters.
According to the universal motor driving system and the parameter debugging method thereof, provided by the invention, the direct current motors with various interface types can be controlled based on multiple parameters, the over-current protection function is realized, and the overspeed protection and the position limiting protection can be realized by automatically or manually debugging the parameters when the motor runs.
The above embodiments are not limited to the technical solution of the embodiments, and the embodiments may be combined with each other to form a new embodiment. The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present invention should be covered in the scope of the technical solution of the present invention.
Claims (10)
1. A universal motor drive system, wherein the system is connected with a dc motor, an angle sensor and an upper computer, comprising:
the digital processing module is used for receiving the sensing signals, the current signals and the voltage signals of the motor, and calculating and outputting driving signals for driving the direct current motor based on user configuration information;
the driving module is connected with the digital processing module and is used for receiving the driving signal and outputting the driving signal to the direct current motor;
the information interaction module is connected with the upper computer and the digital processing module and is used for sending and/or receiving the user configuration information;
and the power supply rectifying and filtering module is used for providing a plurality of power supply voltages with constant magnitudes for each module in the universal motor driving system.
2. The universal motor drive system of claim 1, wherein:
the digital processing module comprises a PWM driving unit, an analog-to-digital conversion unit, a signal transmission unit and a sensing signal unit.
3. The universal motor drive system of claim 2, wherein:
the sensor signal unit has at least one type of interface, which can be selected from the range of QEP interfaces, USART interfaces, SPI interfaces and SSI interfaces.
4. The universal motor drive system of claim 2, wherein:
the interface of the information transmission unit is of various types, and can be a USART unit or an I2CI unit.
5. The universal motor drive system of claim 1, wherein:
the driving module comprises a pre-driving unit and an H-bridge circuit unit.
6. The universal motor drive system of claim 1, wherein:
the power supply rectifying and filtering module comprises a general filtering circuit and a plurality of rectifying and filtering circuits conducted at a constant voltage.
7. The universal motor drive system of claim 1, wherein the system further comprises:
and the rotation angle and rotation speed detection module is used for sending and/or receiving the motor sensing signals.
8. The universal motor drive system of claim 1, wherein the system further comprises:
and the phase current detection module is used for providing an analog current signal of the direct current motor for the digital processing module.
9. The universal motor drive system of claim 1, wherein the system further comprises:
and the voltage detection module is used for providing an analog voltage signal of the direct current motor for the digital processing module.
10. The universal motor driving parameter debugging method is characterized by comprising the following steps of:
initializing motor parameters;
controlling the motor to enter a working mode according to the initialized motor parameters;
debugging motor parameters, and controlling the motor according to the debugged motor parameters;
and saving the debugged motor parameters.
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