CN114636928A - Novel motor testing method - Google Patents
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- CN114636928A CN114636928A CN202210243038.6A CN202210243038A CN114636928A CN 114636928 A CN114636928 A CN 114636928A CN 202210243038 A CN202210243038 A CN 202210243038A CN 114636928 A CN114636928 A CN 114636928A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a novel motor testing method, which comprises a load motor, a torque and rotating speed sensor, an upper computer, a current sensor, a voltage sensor and a data acquisition card, wherein the torque and rotating speed sensor comprises the following steps: the load motor carries out motor drag, when the load motor is dragged reversely by the tested motor, the load motor becomes a generator, three-phase electricity of a power interface outputs electric energy, the electric energy is changed into direct current through a rectifier, and the electric energy is consumed when the electric energy is connected to an electronic load; a torque and rotating speed sensor arranged on the coupler detects a torque and rotating speed signal of the tested motor and transmits the torque and rotating speed signal to an upper computer; detecting current and voltage information of the tested motor by using a current sensor and a voltage sensor; the beneficial effects of the invention are: the rotating speed and the power of the tested electric power propulsion device and the impedance of an electronic load are actively controlled in the test process; the data is displayed and analyzed, so that the motor testing precision is ensured; the method has good denoising capability and improves the accuracy of data storage.
Description
Technical Field
The invention belongs to the technical field of motor testing, and particularly relates to a novel motor testing method.
Background
The novel motor testing method is mainly used for testing the dynamic performance of the electric propulsion device running underwater; the novel electric power propulsion underwater test bench is mainly used for underwater load experiments of electric power propulsion devices, and provides kinetic energy converted from electric energy for load motors and electronic load consumption electric power devices.
The novel electric propulsion underwater test bench mainly provides a working carrier for an integrated motor propeller to complete measurement of various parameters of a tested motor; the novel electric propulsion device generally adopts a water-lubricated bearing and can normally work in water; in addition, the gap between the motor rotor and the stator is filled with seawater during actual work, and eddy current loss and friction loss of the seawater also exist; therefore, the dynamic performance of the integrated motor propeller needs to be tested and checked in water, a system working power supply needs to be provided, the current, the voltage and the torque input and output by the driver are monitored, and the normal work of the whole system is ensured; the diameter range of the propulsion motor is 60-400 mm, the length range is 100-550 mm, and the mass range is 5-40 Kg.
The current motor test adopts the following method:
the underwater kinetic energy power generation test system mainly utilizes a motion control and data acquisition and analysis subsystem of the underwater kinetic energy power generation test system to control the operation of a dragging motor in a dragging water pool subsystem and control the rotation speed of the motor and the operation speed of the dragging test system in a water pool; and meanwhile, the motion state of an impeller in the ocean current power generation impeller subsystem is controlled, the stress condition of the impeller is collected in real time, data parameters are collected, and the data are analyzed and processed.
The steering engine control loop performance test board is mainly used for measuring displacement and speed of a steering engine under the conditions of electromechanical time constant, no-load starting voltage and rated voltage, measuring deviation of electric zero position and mechanical zero position of the steering engine, detecting a rudder angle and detecting the symmetry of the rudder angle; the hardware adopts a standard universal PXI bus, and comprises: the underwater auxiliary propeller comprises a controller, a driving adapter box, a steering engine, an installation platform, an underwater auxiliary propeller, an installation support and accessories; the control loop performance test board application software developed on a LabVIEW software platform is combined to complete motion control of the stepping motor and the servo motor and real-time collection of motion state information of the motor through the encoder and the grating ruler while the motor moves, so that a closed-loop control and test loop is formed.
The driver reliability test bed comprises a motor driver control system, a motor rotating speed control system, a voltage, current, motor consumption power and other experimental data acquisition, recording, playback and analysis systems.
A horsepower test and detection integrated test analysis platform of a power propulsion system is a comprehensive platform relating to a mechanical structure, a hardware system, a software system and an audio/video monitoring system, the overall design of the platform is based on an advanced universal bus technology, and an automatic control mode is adopted to realize test control and acquisition, storage and analysis of test data; the running and testing process control of the equipment is realized through a control system, and the acquisition, storage and analysis of the testing data are realized through a high-performance data acquisition and analysis system, wherein the control system is a control center of the whole system.
In order to display and analyze data and ensure the precision of motor testing, a novel motor testing method is provided for the purpose.
Disclosure of Invention
The invention aims to provide a novel motor testing method which displays and analyzes data and ensures the motor testing precision.
In order to achieve the purpose, the invention provides the following technical scheme: a novel motor testing method comprises a load motor, a torque and rotation speed sensor, an upper computer, a current sensor, a voltage sensor and a data acquisition card, wherein:
the load motor carries out motor drag, when the load motor is dragged reversely by the tested motor, the load motor becomes a generator, three-phase electricity of a power interface outputs electric energy, the electric energy is changed into direct current through a rectifier, and the electric energy is consumed when the electric energy is connected to an electronic load;
a torque and rotating speed sensor arranged on the coupler detects a torque and rotating speed signal of the tested motor and transmits the torque and rotating speed signal to an upper computer;
detecting current and voltage information of a tested motor by using a current sensor and a voltage sensor, and transmitting data to a data acquisition card;
the data acquisition card converts the acquired analog voltage signal into a digital signal which can be identified by a computer by utilizing an A/D conversion function, and then calculates, analyzes and stores the acquired data by using dynamic performance test software;
the test method is as follows:
the method comprises the following steps: placing the test bench stably;
step two: the tested motor is connected with the corresponding mounting bracket motor fixing plate;
step three: slowly lifting the tested motor by the fork lift truck, aligning the shaft coupling and locking, and fixing the tested motor and the test frame fixing plate by using bolts;
step four: electrically controlling the lifting device to rise to a certain height, and pushing the water tank into the water tank fixing bracket by using a fork lift truck and fixing the water tank;
step five: lowering the mounting bracket to the original fixed position, fixing the mounting bracket by using a screw, adding water into the water feeding tank to the height of submerging the test motor, and starting the test;
step six: and after the test is finished, sequentially operating from back to front according to the steps, and disassembling the tested motor.
As a preferable technical scheme of the invention, the device also comprises a direct current power supply which adopts a programmable precise high-power direct current power supply, and the requirements of the power supply voltage and current of the power propulsion device to be tested are met.
As a preferred technical scheme, the KVM monitor further comprises a measurement and control unit, and the measurement and control unit comprises a cabinet, a measurement and control computer, a KVM display, a data acquisition module and a serial communication module.
As a preferable technical scheme of the invention, the torque measurement range of the torque rotating speed sensor is 0-50 Nm, the measurement precision is not lower than +/-0.5%, and the rotating speed measurement range is 0-10000 rpm.
As a preferable technical scheme of the invention, the maximum voltage of the voltage sensor is not lower than 500V, and the measurement error is not less than 1%.
As a preferable technical scheme of the invention, the maximum current of the current sensor is not lower than 100A, and the measurement error is less than 1%.
The invention also comprises an oscilloscope, wherein the oscilloscope is used for measuring the real-time output waveform of the voltage and the current output by the tested driver and comparing the real-time output waveform with the data of the acquisition card.
As a preferred technical solution of the present invention, the present invention further includes a system module, and the system module completes the detection through the data interface.
As a preferred technical solution of the present invention, before the data is stored, a noise reduction process is further performed, and a method of the noise reduction process is as follows:
step 1, preprocessing and sampling data, and normalizing sampling results;
step 2, extracting deep features of the data and constructing an SCSDA model;
step 3, carrying out noise reduction treatment on the SCSDA model to obtain a noise reduction result vector; and performing inverse normalization processing on the noise reduction result vector.
Compared with the prior art, the invention has the beneficial effects that:
(1) the rotating speed and the power of the tested electric power propulsion device and the impedance of an electronic load are actively controlled in the test process;
(2) the data is displayed and analyzed, so that the motor testing precision is ensured;
(3) the method has good denoising capability and improves the accuracy of data storage.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a flow chart of a testing method of the present invention;
FIG. 3 is a flow chart of a noise reduction method according to the present invention;
fig. 4 is a graph of efficiency of the operation of the motor 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 1
Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a novel motor testing method comprises a load motor, a torque and rotation speed sensor, an upper computer, a current sensor, a voltage sensor and a data acquisition card, wherein:
the load motor carries out motor drag, when the load motor is dragged reversely by the tested motor, the load motor becomes a generator, three-phase electricity of a power interface outputs electric energy, the electric energy is changed into direct current through a rectifier, and the electric energy is consumed when the electric energy is connected to an electronic load; the load motor is used for being dragged by a motor to be tested, mechanical energy output by the motor to be tested is converted into electric energy, and a ZLS2154-H30 motor with a positive Hangzhou frame and a WA-3035-E4FB servo driver are selected; the electronic load is used for consuming the electric energy generated by dragging the load motor, the voltage and the current of the electric load are required to be higher than those of the load, and a Dahua DH27610B programmable electronic load is selected;
a torque and rotating speed sensor arranged on the coupler detects a torque and rotating speed signal of the tested motor and transmits the torque and rotating speed signal to an upper computer;
detecting current and voltage information of a tested motor by using a current sensor and a voltage sensor, and transmitting data to a data acquisition card;
the data acquisition card converts the acquired analog voltage signal into a digital signal which can be identified by a computer by utilizing an A/D conversion function, and then calculates, analyzes and stores the acquired data by using dynamic performance test software;
the test method is as follows:
the method comprises the following steps: placing the test bench stably;
step two: the tested motor is connected with the corresponding mounting bracket motor fixing plate;
step three: slowly lifting the tested motor by the fork lift truck, aligning the shaft coupling and locking, and fixing the tested motor and the test frame fixing plate by using bolts;
step four: the lifting device is electrically controlled to rise to a certain height, and the water tank is pushed into and fixed along the water tank fixing support by the fork lift truck;
step five: lowering the mounting bracket to the original fixed position, fixing the mounting bracket by using a screw, adding water into the water feeding tank to the height of submerging the test motor, and starting the test;
step six: and after the test is finished, sequentially operating from back to front according to the steps, and disassembling the tested motor.
In this embodiment, it is preferable that the device further includes a DC power supply, the DC power supply adopts a programmable precision high-power DC power supply DH17865A, and the power supply outputs a maximum voltage DC750V, a maximum output current 240A, and a maximum output power of 60KW, so as to meet the requirements of the supply voltage and current of the measured electromotive force propulsion device.
In this embodiment, preferably, the device further comprises a measurement and control unit, and the measurement and control unit comprises a cabinet, a measurement and control computer, a KVM display, a data acquisition module, and a serial communication module, and is used for serial communication to realize monitoring of different parameters, and the serial communication card is a MOXA CP-118U serial communication card, which can satisfy serial communication of RS232, RS422, and RS 485.
In the embodiment, preferably, the torque measurement range of the torque rotating speed sensor is 0-50 Nm, the measurement precision is not lower than +/-0.5%, the rotating speed measurement range is 0-10000 rpm, and the torque rotating speed sensor is an RS425-S1-A/RS425-S1-D sensor.
In this embodiment, preferably, the maximum voltage of the voltage sensor is not lower than 500V, the measurement error is not less than 1%, and the LEMDVL500 is used as the voltage sensor.
In the embodiment, preferably, the maximum current of the current sensor is not lower than 100A, the measurement error is less than 1%, and the LEM HAL100-S is selected as the current sensor.
In this embodiment, it is preferable that the apparatus further includes an oscilloscope, and the oscilloscope is configured to measure a real-time output waveform of the voltage and current output by the driver to be tested, compare data of the acquisition card, and select a TEKTBS1064 digital storage oscilloscope.
In this embodiment, it is preferable that the system further includes a system module, and when there is a data request, the system module calls a database or a data file through a data interface to complete detection or other functions, and the data interface formulates a uniform standard, and is completely separated from the program, that is, under the condition that the program is not moved, the modification of the data can be quickly completed to adapt to the change of the demand.
In this embodiment, it is preferable that the system self-checking function is further included, and the system self-checking function may check a communication state between the main component device and the main control computer and whether the device itself is normal, and if a certain item is abnormal, the indication is displayed in red, and corresponding error information is given.
In this embodiment, it is preferable that the system further includes a user management module, and the user management module is used for an operator with administrator authority to create a new user, modify existing user information, and delete redundant users.
In this embodiment, it is preferable that the electric propulsion system further includes a parameter configuration module, the parameter configuration module is used for various parameters of the electric propulsion device, including parameters of the dc power supply, parameters of the electronic load, and parameters of various sensors, and the module can set parameters of overcurrent and overvoltage protection, so as to ensure the reliability of the power supply, and set parameters according to characteristics and operating states of various sensors, the power supply, and the driver to be tested, so as to ensure the normal operation of the system.
In this embodiment, preferably, the system further includes a test analysis module, before the motor rotates, the system needs to communicate with the driver of the motor to be tested and load the driver, input the rotational speed information of the motor to operate, and click a "start" button after the preparation is completed to execute the motion scheme, and during the execution of the uniform motion scheme, the voltage, current, power, rotational speed, and torque data of each part are displayed in real time in the program interface.
In this embodiment, it is preferable to further include a performance evaluation, which is mainly used for a comprehensive evaluation of the performance of the electric propulsion device: and calculating the real-time power of the actually measured electrodynamic force propulsion device according to the actually measured sensor data and a performance evaluation algorithm provided by a user, comprehensively evaluating the efficiency in the whole movement process, and obtaining an optimal working point.
In this embodiment, it is preferable that the test data playback device further includes a data query module, and the data query module implements a replay function of the test data.
The test data table under the condition that the electronic load does not load the tested motor is as follows
Testing data under the electronic load loading state (load testing under the limit rotating speed); the controller controls the propulsion motor to work at the rated rotating speed of 600r/min, the load is continuously increased, and the working efficiency data table of the motor is obtained as follows
And obtaining an efficiency curve of the motor operation, as shown in the attached figure 4 of the specification.
And (4) testing conclusion:
when the output power of the motor is 1kW, the efficiency is more than 85%, the requirements of the propeller on the input rotating speed and the torque are met, and the motor index requirements are met.
Example 2
Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a novel motor testing method comprises a load motor, a torque and rotation speed sensor, an upper computer, a current sensor, a voltage sensor and a data acquisition card, wherein:
the load motor carries out motor drag, when the load motor is dragged reversely by the tested motor, the load motor becomes a generator, three-phase electricity of a power interface outputs electric energy, the electric energy is changed into direct current through a rectifier, and the electric energy is consumed when the electric energy is connected to an electronic load; the load motor is used for being dragged by a motor to be tested, mechanical energy output by the motor to be tested is converted into electric energy, and a ZLS2154-H30 motor with a positive Hangzhou frame and a WA-3035-E4FB servo driver are selected; the electronic load is used for consuming the electric energy generated by dragging the load motor, the voltage and the current of the electric load are required to be higher than those of the load, and a Dahua DH27610B programmable electronic load is selected;
a torque and rotating speed sensor arranged on the coupler detects a torque and rotating speed signal of the tested motor and transmits the torque and rotating speed signal to an upper computer;
detecting current and voltage information of a tested motor by using a current sensor and a voltage sensor, and transmitting data to a data acquisition card;
the data acquisition card converts the acquired analog voltage signal into a digital signal which can be identified by a computer by utilizing an A/D conversion function, and then calculates, analyzes and stores the acquired data by using dynamic performance test software;
the test method is as follows:
the method comprises the following steps: placing the test bench stably;
step two: the tested motor is connected with the corresponding mounting bracket motor fixing plate;
step three: slowly lifting the tested motor by the fork lift truck, aligning the shaft coupling and locking, and fixing the tested motor and the test frame fixing plate by using bolts;
step four: the lifting device is electrically controlled to rise to a certain height, and the water tank is pushed into and fixed along the water tank fixing support by the fork lift truck;
step five: lowering the mounting bracket to the original fixed position, fixing the mounting bracket by using a screw, adding water into the water feeding tank to the height of submerging the test motor, and starting the test;
step six: and after the test is finished, sequentially operating from back to front according to the steps, and disassembling the tested motor.
In this embodiment, it is preferable that the device further includes a DC power supply, the DC power supply adopts a programmable precision high-power DC power supply DH17865A, and the power supply outputs a maximum voltage DC750V, a maximum output current 240A, and a maximum output power of 60KW, so as to meet the requirements of the supply voltage and current of the measured electromotive force propulsion device.
In this embodiment, preferably, the system further includes a measurement and control unit, and the measurement and control unit includes a cabinet, a measurement and control computer, a KVM display, a data acquisition module, and a serial communication module, and performs serial communication to realize monitoring of different parameters, and the serial communication card is a MOXA CP-118U serial communication card, which can satisfy serial communication of RS232, RS422, and RS 485.
In the embodiment, preferably, the torque measuring range of the torque rotating speed sensor is 0-50 Nm, the measuring precision is not lower than +/-0.5%, the rotating speed measuring range is 0-10000 rpm, and the torque rotating speed sensor is an RS425-S1-A/RS425-S1-D sensor.
In this embodiment, preferably, the maximum voltage of the voltage sensor is not lower than 500V, the measurement error is not less than 1%, and the LEMDVL500 is used as the voltage sensor.
In the embodiment, preferably, the maximum current of the current sensor is not lower than 100A, the measurement error is less than 1%, and the current sensor selects LEM HAL 100-S.
In this embodiment, it is preferable that the apparatus further includes an oscilloscope, and the oscilloscope is configured to measure a real-time output waveform of the voltage and current output by the driver to be tested, compare data of the acquisition card, and select a TEKTBS1064 digital storage oscilloscope.
In this embodiment, it is preferable that the system further includes a system module, the system module calls a database or a data file to complete detection or other functions through a data interface when a data request is made, the data interface establishes a unified standard, and is completely separated from the program, that is, the data modification can be completed quickly without moving the program, so as to adapt to changes in demand.
In this embodiment, it is preferable that the system self-checking function is further included, and the system self-checking function may check a communication state between the main component device and the main control computer and whether the device itself is normal, and if a certain item is abnormal, the indication is displayed in red, and corresponding error information is given.
In this embodiment, it is preferable that the system further includes a user management module, and the user management module is used for an operator with administrator authority to create a new user, modify existing user information, and delete redundant users.
In this embodiment, it is preferable that the system further includes a parameter configuration module, where the parameter configuration module is used for setting parameters of the electric propulsion device, including parameters of the dc power supply, parameters of the electronic load, and parameters of each sensor, and the module can set parameters of overcurrent and overvoltage protection to ensure the reliability of the power supply, and set parameters to ensure the normal operation of the system according to the characteristics and operating states of each sensor, the power supply, and the driver to be tested.
In this embodiment, preferably, the system further includes a test analysis module, before the motor rotates, the system needs to communicate with the driver of the motor to be tested and load the driver, input the rotational speed information of the motor to operate, and click a "start" button after the preparation is completed to execute the motion scheme, and during the execution of the uniform motion scheme, the voltage, current, power, rotational speed, and torque data of each part are displayed in real time in the program interface.
In this embodiment, it is preferable to further include a performance evaluation, which is mainly used for a comprehensive evaluation of the performance of the electric propulsion device: and calculating the real-time power of the actually measured electrodynamic force propulsion device according to the actually measured sensor data and a performance evaluation algorithm provided by a user, comprehensively evaluating the efficiency in the whole movement process, and obtaining an optimal working point.
In this embodiment, it is preferable that the test data playback device further includes a data query module, and the data query module implements a replay function of the test data.
The test data table under the condition that the electronic load does not load the tested motor is as follows
Testing data under the electronic load loading state (load testing under the limit rotating speed); the controller controls the propulsion motor to work at the rated rotating speed of 600r/min, the load is continuously increased, and the working efficiency data table of the motor is obtained as follows
And obtaining an efficiency curve of the motor operation, as shown in the attached figure 4 of the specification.
And (4) test conclusion:
when the output power of the motor is 1kW, the efficiency is more than 85 percent, the requirements of the propeller on the input rotating speed and the torque are met, and the motor index requirements are met
In this embodiment, preferably, noise reduction processing is further required before data storage, and the method for noise reduction processing is as follows:
step 1, preprocessing and sampling data, and normalizing sampling results;
step 2, extracting deep features of the data and constructing an SCSDA model;
step 3, carrying out noise reduction treatment on the SCSDA model by using the SCSDA model to obtain a noise reduction result vector; the denoise result vector is subjected to inverse normalization processing, so that the denoise capability is good, and the accuracy of data storage is improved.
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 (9)
1. A novel motor test method is characterized in that: including load motor, torque revolution speed sensor, host computer, current sensor, voltage sensor, data acquisition card, wherein:
the load motor carries out motor drag, when the load motor is dragged reversely by the tested motor, the load motor becomes a generator, three-phase electricity of a power interface outputs electric energy, the electric energy is changed into direct current through a rectifier, and the electric energy is consumed when the electric energy is connected to an electronic load;
a torque and rotating speed sensor arranged on the coupler detects a torque and rotating speed signal of the tested motor and transmits the torque and rotating speed signal to an upper computer;
detecting current and voltage information of a tested motor by using a current sensor and a voltage sensor, and transmitting data to a data acquisition card;
the data acquisition card converts the acquired analog voltage signal into a digital signal which can be identified by a computer by utilizing an A/D conversion function, and then calculates, analyzes and stores the acquired data by using dynamic performance test software;
the test method is as follows:
the method comprises the following steps: placing the test bench stably;
step two: the tested motor is connected with the corresponding mounting bracket motor fixing plate;
step three: slowly lifting the tested motor by the fork lift truck, aligning the shaft coupling and locking, and fixing the tested motor and the test frame fixing plate by using bolts;
step four: the lifting device is electrically controlled to rise to a certain height, and the water tank is pushed into and fixed along the water tank fixing support by the fork lift truck;
step five: lowering the mounting bracket to the original fixed position, fixing the mounting bracket by using a screw, adding water into the water feeding tank to the height of submerging the test motor, and starting the test;
step six: and after the test is finished, sequentially operating from back to front according to the steps, and disassembling the tested motor.
2. The method for testing the novel motor according to claim 1, wherein: the direct current power supply adopts a programmable precise high-power direct current power supply, and meets the requirements of the power supply voltage and current of the power propulsion device to be tested.
3. The novel motor testing method according to claim 1, characterized in that: the system also comprises a measurement and control unit, wherein the measurement and control unit comprises a cabinet, a measurement and control computer, a KVM display, a data acquisition module and a serial communication module.
4. The novel motor testing method according to claim 1, characterized in that: the torque measuring range of the torque rotating speed sensor is 0-50 Nm, the measuring precision is not lower than +/-0.5%, and the rotating speed measuring range is 0-10000 rpm.
5. The novel motor testing method according to claim 1, characterized in that: the maximum voltage of the voltage sensor is not lower than 500V, and the measurement error is not less than 1%.
6. The novel motor testing method according to claim 1, characterized in that: the maximum current of the current sensor is not lower than 100A, and the measurement error is less than 1%.
7. The novel motor testing method according to claim 1, characterized in that: the device also comprises an oscilloscope, and the oscilloscope is used for measuring the real-time output waveform of the voltage and the current output by the tested driver and comparing the real-time output waveform with the data of the acquisition card.
8. The novel motor testing method according to claim 1, characterized in that: the system module is used for completing detection through a data interface.
9. The novel motor testing method according to claim 1, characterized in that: before the data is stored, noise reduction processing is required to be carried out, and the noise reduction processing method comprises the following steps:
step 1, preprocessing and sampling data, and normalizing sampling results;
step 2, extracting deep features of the data and constructing an SCSDA model;
step 3, carrying out noise reduction treatment on the SCSDA model to obtain a noise reduction result vector; and performing inverse normalization processing on the noise reduction result vector.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371741A (en) * | 2022-10-24 | 2022-11-22 | 华东交通大学 | System and method for detecting thrust, rotating speed and torque of propulsion motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371741A (en) * | 2022-10-24 | 2022-11-22 | 华东交通大学 | System and method for detecting thrust, rotating speed and torque of propulsion motor |
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