Axial flux motor driving regulation and control system based on modularization

Abstract

The invention discloses an axial flux motor driving regulation and control system based on modularization, and particularly relates to the technical field of power devices, and the system comprises a detection area determination module which is used for determining data in a target axial flux motor as a target regulation and control area, dividing the target regulation and control area into sub-areas according to an equitime division mode, and sequentially numbering the sub-areas as 1, 2,..., i,..., n; the information acquisition module is used for acquiring motor operation data of a target motor in real time and transmitting the motor operation data to the data processing module; according to the invention, the driving regulation and control mode is judged by using multiple parameters such as the motor thermal management data influence parameter, the electromagnetic performance data influence parameter and the mechanical performance data influence parameter, data acquisition is comprehensive, and accurate control of the motor is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of power devices, and more specifically, to a modular-based axial flux motor drive control system. Background Art

[0002] With the rapid development of electric vehicle technology, higher requirements are placed on the efficiency, stability and control accuracy of motor drive systems; improving electric vehicle technology is conducive to reducing environmental pollution, improving economic benefits and improving driving safety; therefore, it is particularly important to develop an efficient, stable and easy-to-control modular axial flux motor drive system.

[0003] The traditional motor drive system includes a sensor module, a drive module, a power management module and an interaction module, wherein the sensor module includes an encoder, a temperature sensor and a current sensor, which are used to monitor the operating status and environmental conditions of the motor in real time, including speed, position, temperature and current; used to monitor the operating status and environmental conditions of the motor in real time, such as speed, position, temperature and current; the drive module is the execution unit of the motor drive control system, which is responsible for converting the control signal output by the main control unit into a voltage or current signal suitable for motor drive, and uses electronic devices to convert the control signal output by the main control unit into a voltage or current signal suitable for motor drive; the power management module is responsible for providing a stable and reliable power supply for the entire system, and has overvoltage and undervoltage protection functions; the interaction module is used to provide an interface for users to interact and operate with the motor drive control system.

[0004] However, in actual use, it still has some shortcomings, such as low integration. The traditional system is composed of multiple independent components, such as power supply, controller, and driver. The connection between these components is relatively complex, occupies a large space, and is prone to compatibility issues; poor scalability. Traditional systems are often designed for specific motor types and power levels, and it is difficult to adapt to different application requirements. If the system needs to be upgraded or expanded, it may be necessary to replace the entire system or carry out a lot of transformation work; limited control accuracy. The control algorithm of the traditional motor drive control system is relatively simple, and it is difficult to achieve precise control of the motor.

[0005] Therefore, there is an urgent need to provide a modular axial flux motor drive control system to solve the problems of low integration, poor scalability and limited control accuracy of existing motor drive systems. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a modular axial flux motor drive control system, which solves the problems raised in the above-mentioned background technology through the following scheme.

[0007] To achieve the above object, the present invention provides the following technical solution: a modular axial flux motor drive control system, comprising:

[0008] The system operation database, system central processing module and user information terminal also include detection area determination module, information collection module, data processing module, comprehensive data analysis module, drive control judgment module, drive control module, drive control feedback module, data interaction transmission module;

[0009] Detection area determination module: used to determine the data in the target axial flux motor as the target control area, and divide it into sub-areas according to the equal time division method, and number each sub-area in sequence as 1, 2, ..., i, ..., n;

[0010] Information acquisition module: used to obtain the motor operation data of the target motor in real time and transmit it to the data processing module;

[0011] Data processing module: used to process the received motor operation data to obtain the motor thermal management data influence coefficient, electromagnetic performance data influence coefficient and mechanical performance data influence coefficient, and transmit them to the comprehensive data analysis module;

[0012] Comprehensive data analysis module: used to import the influence coefficient value of motor thermal management data, the influence coefficient value of electromagnetic performance data and the influence coefficient value of mechanical performance data into the mathematical model of drive control mode rationality index, obtain the drive control mode rationality index value, and transmit it to the drive control judgment module;

[0013] A driving control judgment module: used to compare the driving control mode rationality index value with a plurality of preset driving control mode rationality index values, calculate the minimum difference value among the difference values ​​between the driving control mode rationality index value and the plurality of preset driving control mode rationality index values, and when the minimum difference value is less than the preset difference value, transmit the judgment result to the data interaction transmission module; when the difference value is greater than the preset difference value, generate a driving control mode, and transmit the driving control mode data to the driving control execution module;

[0014] Drive control module: used to directly control the controller and the driver to automatically drive and control the motor according to the drive control mode generated by the drive control judgment module;

[0015] Drive control feedback module: used to collect data from the target motor after the drive control is completed, and compare the collected motor operation data with the preset motor operation data, calculate the difference between the motor operation data and the preset motor operation data, and when the difference is less than the set difference, transmit the difference and the drive control data to the data interaction transmission module; when the difference is greater than the preset difference, transmit the motor operation data to the data processing and analysis module;

[0016] Data interaction and transmission module: used to transmit the data calculated by the driving control judgment module and the data fed back by the driving control feedback module to the administrator's data terminal, and provide reference data for alerting the administrator to make adjustment measures.

[0017] Preferably, the motor operation data includes motor thermal management data influencing parameters, electromagnetic performance data influencing parameters and mechanical performance data influencing parameters.

[0018] Preferably, the influencing parameters of the motor thermal management data include stator winding temperature, denoted as T; rotor heat dissipation efficiency, denoted as η; cooling medium flow, denoted as Q; cooling medium temperature, denoted as C; electromagnetic performance data influencing parameters include air gap magnetic induction intensity, denoted as B; stator current, denoted as I; core density, denoted as ρ; motor electric field strength, denoted as E; mechanical performance data influencing parameters include bearing vibration acceleration, denoted as a; rotor shaft torsional deformation angle, denoted as θ; mechanical power, denoted as P;

[0019] The information acquisition module uses a copper resistance temperature measuring element pre-buried in the stator winding for measurement, which is led out from the iron core through a shielded wire and connected to a resistance thermometer for indication to ensure that the temperature measuring element is buried at the highest point where the winding may heat up. The motor is then started and runs to a stable state, and the temperature indication on the resistance thermometer is read. The heat dissipation efficiency is indirectly calculated by measuring the rotor surface temperature and ambient temperature, as well as the flow rate and temperature of the cooling medium. First, an infrared thermometer is used to measure the temperature of the rotor surface, then the ambient temperature is recorded, and then the flow rate and temperature of the cooling medium are measured. Finally, according to the heat dissipation formula Calculate the heat dissipation efficiency; use a flow meter to measure the flow of the cooling medium. First, install the flow meter in the cooling medium pipeline, then start the motor and run it to a stable state, then read the flow indication on the flow meter; use a thermometer to measure the temperature of the cooling medium, and directly use the temperature sensor to read the temperature indication; use a Tesla meter to measure the magnetic induction intensity of the air gap. First, place the measuring probe of the Tesla meter in the air gap, then start the motor and run it to a stable state, and then read the magnetic induction intensity indication on the Tesla meter; use a current transformer or a Hall sensor to measure the stator current. First, connect the current transformer in series with the stator. In the subcircuit, the motor is then started and runs to a stable state, and then the current indication on the current transformer is read; the core density is calculated by measuring the mass and volume of the core, and the core density is calculated according to the density formula using an accurate measuring tool to measure the mass and volume of the core; the electric field strength of the motor is measured using an electric field strength meter, and the probe of the electric field strength meter is first placed near the motor, the motor is started and runs to a stable state, and then the electric field strength indication on the electric field strength meter is read; the bearing vibration acceleration is measured using a vibration acceleration sensor, and the vibration acceleration sensor is first installed near the bearing, the motor is started and runs to a stable state, and then the vibration acceleration indication on the vibration acceleration sensor is read; the rotor shaft torsional deformation angle is measured using an angle sensor or a strain gauge, and the angle sensor or the strain gauge is first installed on the rotor shaft, and then the motor is started and a load is applied, and then the torsional deformation angle indication on the angle sensor is read; the mechanical power is indirectly calculated by measuring the input power and efficiency of the motor, and the input power of the motor is measured using a power meter, and the efficiency under the current working condition is obtained according to the efficiency curve or test data of the motor, and then the mechanical power is calculated according to the mechanical power formula.

[0020] Preferably, the data processing module includes a motor thermal management data influence coefficient calculation unit, an electromagnetic performance data influence coefficient calculation unit and a mechanical performance data influence coefficient calculation unit.

[0021] Preferably, the motor thermal management data influence coefficient calculation unit is used to import the motor thermal management data influence parameters into the motor thermal management data influence coefficient mathematical model to obtain the motor thermal management data influence coefficient value; the electromagnetic performance data influence coefficient calculation unit is used to import the electromagnetic performance data influence parameters into the electromagnetic performance data influence coefficient mathematical model to obtain the electromagnetic performance data influence coefficient value; the mechanical performance data influence coefficient calculation unit is used to import the mechanical performance data influence parameters into the mechanical performance data influence coefficient mathematical model to obtain the mechanical performance data influence coefficient value.

[0022] Preferably, the mathematical model of the motor thermal management data influence coefficient is specifically:

[0023]

[0024] Where T i represents the stator winding temperature in the i-th time period, Indicates the standard temperature of the stator winding, C i-1 represents the cooling medium temperature in the i-1th time period, where i is not equal to 1, C i represents the cooling medium temperature in the i-th time period, Q i It indicates the preferred cooling medium flow rate in the i-th time period.

[0025] Preferably, the electromagnetic performance data influence coefficient mathematical model is specifically:

[0026]

[0027] Among them I i Cooling medium flow Stator current, B i-1 represents the air gap magnetic induction intensity in the i-1th time period, B i represents the air gap magnetic induction intensity in the i-th time period, E i Represents the electric field strength of the motor in the i-th time period.

[0028] Preferably, the mechanical property data influence coefficient mathematical model is specifically:

[0029]

[0030] Preferably, the mathematical model of the rationality index of the driving control mode is specifically:

[0031]

[0032] Where φ represents the driving control mode index, Indicates the standard driven control mode index

[0033] Preferably, the driving control mode index is specifically:

[0034]

[0035] Technical effects and advantages of the present invention:

[0036] 1. The present invention adopts a highly integrated component design. The power supply, controller and driver are integrated into a compact unit. The connection between these components is simplified, the space occupied is small, and the compatibility is significantly improved;

[0037] 2. The present invention judges the existing motor state through the driving control feedback module, which can realize the judgment of different motor types and power levels, taking into account the adaptability of a wide range of motor types and power levels, and can easily meet different application requirements;

[0038] 3. The present invention determines the driving control mode by using multiple parameters including motor thermal management data influencing parameters, electromagnetic performance data influencing parameters and mechanical performance data influencing parameters. The data collection is comprehensive, thus achieving precise control of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0040] Figure 2 It is a schematic diagram of the structure of the system working part of the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] As attached Figure 1 A modular axial flux motor drive control system is shown, comprising:

[0043] The system operation database, system central processing module and user information terminal also include detection area determination module, information collection module, data processing module, comprehensive data analysis module, drive control judgment module, drive control module, drive control feedback module, data interaction transmission module;

[0044] The system operation database includes all data of the video storage management system and collects information output by each module in real time. The system central processing module is used to centrally control the information instructions output by each module. The user information terminal is an information output device that receives information based on the modular axial flux motor drive control system.

[0045] The output end of the detection area determination module is telegraphed connected to the input end of the information acquisition module, the output end of the information acquisition module is telegraphed connected to the input end of the data processing module, the output end of the data processing module is telegraphed connected to the input end of the comprehensive data analysis module, the output end of the comprehensive data analysis module is telegraphed connected to the input end of the driving control judgment module, the output end of the driving control judgment module is telegraphed connected to the input end of the data interactive transmission module, the output end of the driving control judgment module is telegraphed connected to the input end of the driving control module, the output end of the driving control module is telegraphed connected to the input end of the driving control feedback module, the output end of the driving control feedback module is telegraphed connected to the input end of the data processing module, and the output end of the driving control feedback module is telegraphed connected to the input end of the data interactive transmission module.

[0046] The detection area determination module is used to determine the data in the target axial flux motor as the target control area, and divide it into sub-areas according to an equal time division method, and number each sub-area in sequence as 1, 2, ..., i, ..., n.

[0047] In this embodiment, it is specifically necessary to explain that the detection area determination module first performs filtering and denoising preprocessing on the collected data based on the various operating data of the target axial flux motor in the database to improve the data quality, and then analyzes the time domain and frequency domain characteristics of the data, and divides the data in the target axial flux motor into several sub-areas of equal time length every 5 seconds, and numbers each monitoring sub-area in sequence, starting from 1 and numbering consecutive integers up to n.

[0048] The information acquisition module is used to acquire the motor operation data of the target motor in real time and transmit it to the data processing module.

[0049] In this embodiment, it should be specifically explained that the motor operation data includes motor thermal management data influencing parameters, electromagnetic performance data influencing parameters and mechanical performance data influencing parameters.

[0050] In this embodiment, it should be specifically noted that the parameters affecting the thermal management data of the motor include the stator winding temperature, denoted by T; the rotor heat dissipation efficiency, denoted by η; the cooling medium flow rate, denoted by Q; the cooling medium temperature, denoted by C; the parameters affecting the electromagnetic performance data include the air gap magnetic induction intensity, denoted by B; the stator current, denoted by I; the core density, denoted by ρ; the motor electric field strength, denoted by E; the parameters affecting the mechanical performance data include the bearing vibration acceleration, denoted by a; the rotor shaft torsional deformation angle, denoted by θ; and the mechanical power, denoted by P.

[0051] In this embodiment, it is specifically necessary to explain that the information acquisition module uses a copper resistance temperature measuring element pre-buried in the stator winding for measurement, which is led out from the iron core through a shielded wire and connected to a resistance thermometer for indication to ensure that the temperature measuring element is buried at the highest point where the winding may heat up, then the motor is started and runs to a stable state, and the temperature indication on the resistance thermometer is read; the heat dissipation efficiency is indirectly calculated by measuring the rotor surface temperature and the ambient temperature, as well as the flow rate and temperature of the cooling medium, first using an infrared thermometer to measure the temperature of the rotor surface, then recording the ambient temperature, and then measuring the flow rate and temperature of the cooling medium , and finally calculate the heat dissipation efficiency according to the heat dissipation formula; use a flow meter to measure the flow of the cooling medium. First, install the flow meter in the cooling medium pipeline, then start the motor and run it to a stable state, then read the flow indication on the flow meter; use a thermometer to measure the temperature of the cooling medium, and directly use the temperature sensor to read the temperature indication; use a Tesla meter to measure the air gap magnetic induction intensity. First, place the measuring probe of the Tesla meter in the air gap, then start the motor and run it to a stable state, and then read the magnetic induction intensity indication on the Tesla meter; use a current transformer or a Hall sensor to measure the stator current. First, place the current transformer in the air gap, then start the motor and run it to a stable state, and then read the magnetic induction intensity indication on the Tesla meter. The sensor is connected in series in the stator circuit, and then the motor is started and runs to a stable state, and then the current indication on the current transformer is read; the core density is calculated by measuring the mass and volume of the core, and the core density is calculated according to the density formula using an accurate measuring tool to measure the mass and volume of the core. The core density is then calculated using the density formula; the electric field strength measuring instrument is used to measure the electric field strength of the motor. First, the probe of the electric field strength measuring instrument is placed near the motor, the motor is started and runs to a stable state, and then the electric field strength indication on the electric field strength measuring instrument is read; the vibration acceleration sensor is used to measure the bearing vibration acceleration. First, the vibration acceleration sensor is installed Install it near the bearing, start the motor and run it to a stable state, then read the vibration acceleration indication on the vibration acceleration sensor; use an angle sensor or strain gauge to measure the torsional deformation angle of the rotor shaft, first install the angle sensor or strain gauge on the rotor shaft, then start the motor and apply a load, and then read the torsional deformation angle indication on the angle sensor; indirectly calculate the mechanical power by measuring the input power and efficiency of the motor, use a power meter to measure the input power of the motor, obtain the efficiency under the current working conditions based on the motor's efficiency curve or test data, and then calculate the mechanical power based on the mechanical power formula.

[0052] The data processing module is used to process the received motor operation data to obtain the motor thermal management data influence coefficient, the electromagnetic performance data influence coefficient and the mechanical performance data influence coefficient, and transmit them to the comprehensive data analysis module.

[0053] In this embodiment, it should be specifically explained that the data processing module includes a motor thermal management data influence coefficient calculation unit, an electromagnetic performance data influence coefficient calculation unit and a mechanical performance data influence coefficient calculation unit.

[0054] In this embodiment, it is specifically necessary to explain that the motor thermal management data influence coefficient calculation unit is used to import the motor thermal management data influence parameters into the motor thermal management data influence coefficient mathematical model to obtain the motor thermal management data influence coefficient value; the electromagnetic performance data influence coefficient calculation unit is used to import the electromagnetic performance data influence parameters into the electromagnetic performance data influence coefficient mathematical model to obtain the electromagnetic performance data influence coefficient value; the mechanical performance data influence coefficient calculation unit is used to import the mechanical performance data influence parameters into the mechanical performance data influence coefficient mathematical model to obtain the mechanical performance data influence coefficient value.

[0055] In this embodiment, it should be specifically explained that the mathematical model of the motor thermal management data influence coefficient is specifically:

[0056]

[0057] The mathematical model of the influence coefficient of electromagnetic performance data is as follows:

[0058]

[0059] The specific mathematical model of the influence coefficient of mechanical performance data is:

[0060]

[0061] Where T i represents the stator winding temperature in the i-th time period, Indicates the standard temperature of the stator winding, C i-1 represents the cooling medium temperature in the i-1th time period, where i is not equal to 1, C i represents the cooling medium temperature in the i-th time period, Q i represents the cooling medium flow rate in the i-th time period, I i Cooling medium flow Stator current, B i-1 represents the air gap magnetic induction intensity in the i-1th time period, B i represents the air gap magnetic induction intensity in the i-th time period, E i Represents the electric field strength of the motor in the i-th time period.

[0062] The comprehensive data analysis module is used to import the motor thermal management data influence coefficient value, the electromagnetic performance data influence coefficient value and the mechanical performance data influence coefficient value into the drive control mode rationality index mathematical model, obtain the drive control mode rationality index value, and transmit it to the drive control judgment module.

[0063] In this embodiment, it should be specifically explained that the mathematical model of the rationality index of the driving control mode is specifically:

[0064]

[0065] in

[0066]

[0067] Where φ represents the driving control mode index, Represents the standard-driven regulation mode index.

[0068] The driving control judgment module is used to compare the driving control mode rationality index value with multiple preset driving control mode rationality index values, calculate the minimum difference value among the difference values ​​between the driving control mode rationality index value and multiple preset driving control mode rationality index values, and when the minimum difference value is less than the preset difference value, transmit the judgment result to the data interaction transmission module; when the difference value is greater than the preset difference value, generate the driving control mode, and transmit the driving control mode data to the driving control execution module.

[0069] In this embodiment, it should be specifically explained that the multiple preset driving control mode rationality index values ​​are standard driving control mode rationality index values ​​under different driving control modes, and the preset difference value is the difference between the driving control mode rationality index value under the historical corresponding driving control mode and the standard driving control mode rationality index value.

[0070] The drive control module is used to directly control the controller and the driver to automatically drive and control the motor according to the drive control mode generated by the drive control judgment module.

[0071] In this embodiment, it should be specifically noted that the controller, driver and power supply are integrated into a compact unit, the connection between these components is simplified, the space occupied is small, the compatibility is significantly improved, and direct drive regulation can be performed.

[0072] The drive control feedback module is used to collect data on the target motor after the drive control is completed, and compare the collected motor operation data with the preset motor operation data, calculate the difference between the motor operation data and the preset motor operation data, and when the difference value is less than the set difference value, the difference value and the drive control data are transmitted to the data interaction transmission module; when the difference value is greater than the preset difference value, the motor operation data is transmitted to the data processing and analysis module.

[0073] It should be specifically explained in this embodiment that the preset motor operation data is the standard motor operation data under the corresponding driving control mode, and the set difference value is the minimum difference value between the historical motor operation data and the standard motor operation data under the corresponding driving control mode.

[0074] The data interaction transmission module is used to transmit the data calculated by the driving control judgment module and the data fed back by the driving control feedback module to the administrator's data terminal, and provide reference data for alerting the administrator to make adjustment measures.

[0075] In this embodiment, it should be specifically noted that the data terminal of the administrator is a common data receiver such as a mobile phone or a computer, so this embodiment does not specifically limit the data terminal.

[0076] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0077] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular axial flux motor drive control system, characterized in that: include: The system operation database, system central processing module and user information terminal also include detection area determination module, information collection module, data processing module, comprehensive data analysis module, drive control judgment module, drive control module, drive control feedback module, data interaction transmission module; Detection area determination module: used to determine the data in the target axial flux motor as the target control area, and divide it into sub-areas according to the equal time division method, and number each sub-area in sequence as 1, 2, ..., i, ..., n; Information acquisition module: used to obtain the motor operation data of the target motor in real time and transmit it to the data processing module; Data processing module: used to process the received motor operation data to obtain the motor thermal management data influence coefficient, electromagnetic performance data influence coefficient and mechanical performance data influence coefficient, and transmit them to the comprehensive data analysis module; Comprehensive data analysis module: used to import the influence coefficient value of motor thermal management data, the influence coefficient value of electromagnetic performance data and the influence coefficient value of mechanical performance data into the mathematical model of drive control mode rationality index, obtain the drive control mode rationality index value, and transmit it to the drive control judgment module; A driving control judgment module: used to compare the driving control mode rationality index value with a plurality of preset driving control mode rationality index values, calculate the minimum difference value among the difference values ​​between the driving control mode rationality index value and the plurality of preset driving control mode rationality index values, and when the minimum difference value is less than the preset difference value, transmit the judgment result to the data interaction transmission module; when the minimum difference value is greater than the preset difference value, generate a driving control mode, and transmit the driving control mode data to the driving control execution module; Drive control module: used to directly control the controller and the driver to automatically drive and control the motor according to the drive control mode generated by the drive control judgment module; Drive control feedback module: used to collect data from the target motor after the drive control is completed, and compare the collected motor operation data with the preset motor operation data, calculate the difference between the motor operation data and the preset motor operation data, and when the difference is less than the set difference, transmit the difference and the drive control data to the data interaction transmission module; when the difference is greater than the preset difference, transmit the motor operation data to the data processing and analysis module; Data interaction and transmission module: used to transmit the data calculated by the driving control judgment module and the data fed back by the driving control feedback module to the administrator's data terminal, and provide reference data for alerting the administrator to make adjustment measures.

2. The modular axial flux motor drive control system according to claim 1, characterized in that: The motor operation data includes motor thermal management data influencing parameters, electromagnetic performance data influencing parameters and mechanical performance data influencing parameters.

3. The modular axial flux motor drive control system according to claim 2, characterized in that: The influencing parameters of the motor thermal management data include stator winding temperature, denoted as T; rotor heat dissipation efficiency, denoted as η; cooling medium flow, denoted as Q; cooling medium temperature, denoted as C; electromagnetic performance data influencing parameters include air gap magnetic induction intensity, denoted as B; stator current, denoted as I; core density, denoted as ρ; The electric field strength of the motor is recorded as E; the parameters affecting the mechanical performance data include the bearing vibration acceleration, recorded as a; the rotor shaft torsional deformation angle, recorded as θ; and the mechanical power, recorded as P; The information acquisition module uses a copper resistance temperature measuring element pre-buried in the stator winding for measurement, which is led out from the iron core through a shielded wire and connected to a resistance thermometer for indication to ensure that the temperature measuring element is buried at the highest point where the winding may heat up. The motor is then started and runs to a stable state, and the temperature indication on the resistance thermometer is read. The heat dissipation efficiency is indirectly calculated by measuring the rotor surface temperature and ambient temperature, as well as the flow rate and temperature of the cooling medium. First, an infrared thermometer is used to measure the temperature of the rotor surface, then the ambient temperature is recorded, and then the flow rate and temperature of the cooling medium are measured. Finally, the heat dissipation efficiency is calculated according to the heat dissipation formula. A flow meter is used to measure the flow of the cooling medium. The flow meter is first installed in the cooling medium pipeline, and then the motor is started and runs. To a stable state, at this time read the flow indication on the flow meter; use a thermometer to measure the temperature of the cooling medium, and directly use the temperature sensor to read the temperature indication; use a Tesla meter to measure the magnetic induction intensity of the air gap, first place the measuring probe of the Tesla meter in the air gap, then start the motor and run it to a stable state, and then read the magnetic induction intensity indication on the Tesla meter; use a current transformer or a Hall sensor to measure the stator current, first connect the current transformer in series in the stator circuit, then start the motor and run it to a stable state, and then read the current indication on the current transformer; calculate the core density by measuring the mass and volume of the core, use accurate measuring tools to measure the mass and volume of the core, and then calculate the core density according to the density formula; Use an electric field strength meter to measure the electric field strength of the motor. First, place the probe of the electric field strength meter near the motor, start the motor and run it to a stable state, and then read the electric field strength indication on the electric field strength meter. Use a vibration acceleration sensor to measure the bearing vibration acceleration. First, install the vibration acceleration sensor near the bearing, start the motor and run it to a stable state, and then read the vibration acceleration indication on the vibration acceleration sensor. Use an angle sensor or strain gauge to measure the torsional deformation angle of the rotor shaft. First, install the angle sensor or strain gauge on the rotor shaft, then start the motor and apply a load, and then read the torsional deformation angle indication on the angle sensor. The mechanical power is indirectly calculated by measuring the input power and efficiency of the motor. Use a power meter to measure the input power of the motor, obtain the efficiency under the current working conditions based on the efficiency curve or test data of the motor, and then calculate the mechanical power based on the mechanical power formula.

4. The modular axial flux motor drive control system according to claim 1, characterized in that: The data processing module includes a motor thermal management data influence coefficient calculation unit, an electromagnetic performance data influence coefficient calculation unit and a mechanical performance data influence coefficient calculation unit.

5. The modular axial flux motor drive control system according to claim 4, characterized in that: The motor thermal management data influence coefficient calculation unit is used to import the motor thermal management data influence parameter into the motor thermal management data influence coefficient mathematical model to obtain the motor thermal management data influence coefficient value; The electromagnetic performance data influence coefficient calculation unit is used to import the electromagnetic performance data influence parameter into the electromagnetic performance data influence coefficient mathematical model to obtain the electromagnetic performance data influence coefficient value; The mechanical property data influence coefficient calculation unit is used to import the mechanical property data influence parameters into the mechanical property data influence coefficient mathematical model to obtain the mechanical property data influence coefficient value.

6. The modularized axial flux motor drive control system according to claim 5, characterized in that: The mathematical model of the influence coefficient of the motor thermal management data is specifically: Where T i represents the stator winding temperature in the i-th time period, Indicates the standard temperature of the stator winding, C i-1 represents the cooling medium temperature in the i-1th time period, where i is not equal to 1, C i represents the cooling medium temperature in the i-th time period, Q i Represents the cooling medium flow rate in the i-th time period.

7. The modularized axial flux motor drive control system according to claim 5, characterized in that: The electromagnetic performance data influence coefficient mathematical model is specifically: Among them I i Cooling medium flow Stator current, B i-1 represents the air gap magnetic induction intensity in the i-1th time period, B i represents the air gap magnetic induction intensity in the i-th time period, E i Represents the electric field strength of the motor in the i-th time period.

8. The modularized axial flux motor drive control system according to claim 5, characterized in that: The mathematical model of the mechanical performance data influence coefficient is specifically:

9. The modularized axial flux motor drive control system according to claim 1, characterized in that: The mathematical model of the rationality index of the driving control mode is specifically: Where φ represents the driving control mode index, Represents the standard-driven regulation mode index.

10. The modularized axial flux motor drive control system according to claim 9, characterized in that: The driving control mode index is specifically:

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