CN111277183A - Motor rotating speed adjusting method, device, equipment and medium - Google Patents
Motor rotating speed adjusting method, device, equipment and medium Download PDFInfo
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- CN111277183A CN111277183A CN201811385737.4A CN201811385737A CN111277183A CN 111277183 A CN111277183 A CN 111277183A CN 201811385737 A CN201811385737 A CN 201811385737A CN 111277183 A CN111277183 A CN 111277183A
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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
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/10—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors for preventing overspeed or under speed
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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
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
Abstract
The invention discloses a method, a device, equipment and a medium for adjusting the rotating speed of a motor. The method comprises the following steps: the method comprises the steps of obtaining a current performance index of a motor, determining a rotating speed regulating quantity according to the relation between a target performance index and the current performance index, generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, and sending the rotating speed regulating instruction to the motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a method, a device, equipment and a medium for adjusting the rotating speed of a motor.
Background
The single-phase high-voltage direct current motor is short for a single-phase motor, the rotating speed of the single-phase motor is mostly solidified in a specific rotating speed meter, the single-phase motor receives a performance index input by a user, the rotating speed corresponding to the performance index is searched in the rotating speed meter, and the single-phase motor rotates according to the rotating speed.
In the development process of a single-phase motor, engineers need to adjust the rotation speed of the motor according to performance indexes such as air volume and resonance points. If the single-phase motor is required to reach a certain project standard performance index, such as a target air volume value, a target noise decibel value and the like, since the rotating speed corresponding to the target performance index can be finally determined only by continuously trying, when the rotating speed of the single-phase motor is adjusted according to the target performance index, an engineer must modify a rotating speed meter in advance, modify the rotating speed corresponding to the target performance index in the rotating speed meter into the currently tried rotating speed, so as to control the single-phase motor to rotate according to the modified rotating speed, and obtain an actual performance index at the rotating speed, if the actual performance index is deviated from the target performance index, the engineer needs to modify the rotating speed meter again, so as to adjust the rotating speed of the single-phase motor. Therefore, the development process of the single-phase motor is complicated to operate, and the performance test period of the motor is prolonged.
On the other hand, engineers need to perform limit test, reliability test, and load test of the fan blade or the turbine for the performance of the single-phase motor, and also need to frequently modify the tachometer to achieve the test purpose.
How to rapidly adjust the rotating speed of the single-phase motor is a problem that needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to solve the existing technical problems, embodiments of the present invention provide a method, an apparatus, a device, and a medium for adjusting a rotational speed of a motor.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a method for adjusting the rotating speed of a motor, which comprises the following steps:
acquiring a current performance index of the motor;
determining a rotating speed regulating quantity according to the relation between a target performance index and the current performance index, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity;
and sending the rotating speed adjusting instruction to the motor.
In the above scheme, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction;
and determining that the current performance index is inferior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction.
In the above scheme, the current performance index is a current decibel value of noise, the target performance index is a target decibel value of noise,
the determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity comprises the following steps:
determining that the current noise decibel value is lower than the target noise decibel value and the noise decibel difference value, determining a rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
and determining that the current noise decibel value is higher than the target noise decibel value and the noise decibel difference value, determining the rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
In the above scheme, the current performance index is a current power loss value, the target performance index is a target power loss value,
the determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity comprises the following steps:
determining that the current power loss value is lower than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
and determining that the current power loss value is higher than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
In the above scheme, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current air volume value is higher than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction;
and determining that the current air volume value is lower than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction.
In the above scheme, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
and determining a vibration difference value between the current vibration amplitude and a target vibration amplitude, determining a rotating speed regulating quantity according to the vibration difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity.
In the foregoing solution, after the sending the rotation speed adjustment command to the motor, the method further includes:
and acquiring the current rotating speed value of the motor.
In the foregoing scheme, after the current rotation speed value of the motor is obtained, the method further includes:
obtaining the current performance index of the motor, determining that the current performance index meets the target performance index, and storing the corresponding relation between the current rotating speed value and the target performance index.
The embodiment of the invention also provides a motor rotating speed adjusting device, which comprises:
the information acquisition unit is used for acquiring the current performance index of the motor;
the instruction generating unit is used for determining a rotating speed regulating quantity according to the relation between a target performance index and the current performance index and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity;
and the command sending unit is used for sending the rotating speed adjusting command to the motor.
An embodiment of the present invention further provides a motor control apparatus, including: a processor and a memory for storing a computer program capable of running on the processor;
wherein the processor is configured to perform the steps of any of the above methods when running the computer program.
An embodiment of the present invention further provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the computer program implements any one of the methods described above.
According to the method, the device, the equipment and the medium for adjusting the rotating speed of the motor, provided by the embodiment of the invention, the rotating speed regulating quantity is determined by acquiring the current performance index and combining the target performance index, the rotating speed regulating instruction carrying the rotating speed regulating quantity is generated, the rotating speed of the motor is regulated, frequent modification of a rotating speed meter is avoided, the period for testing the performance of the motor is favorably shortened, the development efficiency of the motor is accelerated, and the limit performance of the motor can be quickly tested even if different loads are replaced.
Drawings
Fig. 1 is a flowchart of a method for adjusting a rotational speed of a motor according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for adjusting a rotation speed of a single-phase high-voltage direct-current motor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a motor speed adjusting device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a hardware structure of a motor speed adjusting device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
An embodiment of the present invention provides a method for adjusting a rotation speed of a motor, as shown in fig. 1, the method includes:
step 101: acquiring a current performance index of the motor;
the current performance index is a performance index presented by the motor in the current state, and specifically may be a current noise decibel value, a current power loss value, a current air volume value, or a current vibration amplitude value. The performance tester can receive the current performance index of the motor transmitted by the performance detection equipment and also can receive the current performance index of the motor input by engineering personnel. The performance detection equipment can be different equipment according to different performance indexes, and when the performance indexes are noise decibel values, the performance detection equipment is a noise detector; when the performance index is a power loss value, the performance detection equipment is a power meter; when the performance index is the air volume value, the performance detection equipment is an air volume detector; and when the performance index is the vibration amplitude, the performance detection equipment is an acceleration sensor.
And when the current performance index is the current noise decibel value, the performance tester receives the current noise decibel value of the motor, which is obtained by the noise detector. For example, an envelope sphere is set with a motor as a center and R as a radius, test points are arranged on the envelope sphere, and a noise detector is placed at the test points. When the motor is in a working state, a noise detector is adopted to detect the noise generated by the motor, determine the current noise decibel value and transmit the current noise decibel value to the performance tester.
When the current air volume value of the motor is measured, a test point is set at a position which takes the motor with load as a starting point and is L away from the motor, and the air volume detector is placed at the test point. When the motor is in a working state, the motor rotates to drive the fan blades to rotate to generate natural wind, and the wind volume detector is adopted to detect the wind volume generated when the motor drives the fan blades and determine the current wind volume value of the motor.
Step 102: determining a rotating speed regulating quantity according to the relation between a target performance index and the current performance index, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity;
the target performance index is a set performance index which the motor needs to reach, and specifically can be a target noise decibel value, a target power loss value, a target air volume value or a target vibration amplitude.
The motor rotates, can produce the noise, if the noise is too big, can bring the interference to the user. Therefore, the engineer sets a target decibel value of noise according to the noise requirement of the actual application scenario, or sets a target power loss value according to the performance of the power supply circuit in the load of the motor, such as the maximum electric power that can be transmitted by the power supply circuit. And (4) setting a target air quantity value at a position with a distance L from the motor by an engineer according to the requirement of an actual application scene on the air quantity. When the motor rotates, vibration of a certain degree can occur, and if the vibration frequency of the motor is the same as or close to the natural frequency of the load of the motor, a resonance phenomenon can occur, so that the normal work of the motor is influenced, and the working performance of the load of the motor is also influenced. The engineer needs to set a target vibration amplitude value in accordance with the motor or the range of the motor load to the vibration.
In some embodiments, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction;
and determining that the current performance index is inferior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction.
After the performance tester determines the performance index difference value between the target performance index and the current performance index, the performance tester determines the rotation speed adjustment amount according to the performance index difference value, specifically, the performance tester determines the rotation speed adjustment amount corresponding to the current performance index difference value according to the stored mapping relationship between the performance index difference value and the rotation speed adjustment amount. The mapping relationship between the performance index difference value and the rotating speed regulating quantity can be preset and stored in the performance tester.
For the performance tester provided with the key, the number of times of pressing the key is determined by an engineer according to the target performance index and the current performance index and the self experience according to the fixed rotating speed stepping amount after the key is pressed once. The performance tester records the pressed times of the key and determines the rotating speed regulating quantity according to the pressed times of the key and the rotating speed stepping quantity. The keys comprise a rotating speed increasing key and a rotating speed decreasing key. The rotational speed increase button increases a fixed rotational speed step amount each time it is pressed. Likewise, the speed reduction button is depressed once, reducing a fixed speed step.
Specifically, the determining that the current performance index is superior to a target performance index and a difference between the target performance indexes, determining a rotation speed adjustment amount according to the difference between the target performance indexes, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current noise decibel value is lower than the target noise decibel value and the noise decibel difference value, determining a rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity; for example, calculating a noise decibel difference value between the current noise decibel value and the target noise decibel value, determining a rotating speed regulating quantity according to the noise decibel difference value, determining that the current noise decibel value is lower than the target noise decibel value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
determining that the current noise decibel value is higher than the target noise decibel value and a noise decibel difference value, determining a rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity, for example, calculating the noise decibel difference value between the current noise decibel value and the target noise decibel value, determining the rotating speed regulating quantity according to the noise decibel difference value, determining that the current noise decibel value is higher than the target noise decibel value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
Here, the performance tester determines the rotation speed adjustment amount according to the noise decibel difference value, and when the obtained current noise decibel value is higher than the target noise decibel value, it indicates that the rotation speed of the motor is too large, and the rotation speed of the motor needs to be reduced according to the determined rotation speed adjustment amount to reduce noise. When the current noise decibel value obtained by the performance tester is lower than the target noise decibel value, the rotating speed of the motor is indicated to be too small, and the rotating speed of the motor needs to be increased according to the determined rotating speed regulating quantity so as to achieve the target noise decibel value.
Specifically, the determining that the current performance index is better than the target performance index and the difference between the performance indexes, determining a rotation speed adjustment amount according to the difference between the performance indexes, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current power loss value is lower than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity, for example, calculating a power loss difference value between the current power loss value and the target power loss value, determining the rotating speed regulating quantity according to the power loss difference value, determining that the current power loss value is lower than the target power loss value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
determining that the current power loss value is higher than the target power loss value and the power loss difference value, determining a rotation speed adjustment amount according to the power loss difference value, and generating a rotation speed reduction instruction carrying the rotation speed adjustment amount, for example, calculating the power loss difference value between the current power loss value and the target power loss value, determining the rotation speed adjustment amount according to the power loss difference value, determining that the current power loss value is higher than the target power loss value, and generating a rotation speed reduction instruction carrying the rotation speed adjustment amount.
Here, the performance tester determines the rotation speed adjustment amount according to the power loss difference value, and when the obtained current power loss value is higher than the target power loss value, it indicates that the rotation speed of the motor is too large, and the rotation speed of the motor needs to be reduced to reduce the power loss. When the current power loss value acquired by the performance tester is lower than the target power loss value, the rotating speed of the motor is indicated to be too small, and the rotating speed of the motor needs to be increased to reach the target power loss value.
Specifically, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current air volume value is higher than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction, for example, calculating the air volume difference value between the current air volume value and the target air volume value, determining the rotating speed regulating quantity according to the air volume difference value, determining that the current air volume value is higher than the target air volume value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity;
determining that the current air volume value is lower than the target air volume value and an air volume difference value, determining a rotation speed regulating quantity according to the air volume difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity, wherein the rotation speed regulating instruction is a rotation speed increasing instruction, for example, calculating the air volume difference value between the current air volume value and the target air volume value, determining the rotation speed regulating quantity according to the air volume difference value, determining that the current air volume value is lower than the target air volume value, and generating the rotation speed increasing instruction carrying the rotation speed regulating quantity.
Here, the performance tester determines the rotation speed adjustment amount according to the air volume difference value, and when the obtained current air volume value is higher than the target air volume value, it indicates that the rotation speed of the motor is too large, and the rotation speed of the motor needs to be reduced according to the rotation speed adjustment amount to reduce the air volume. When the current air volume value acquired by the performance tester is lower than the target air volume value, the rotating speed of the motor is over small, and the rotating speed of the motor needs to be increased according to the rotating speed regulating quantity so as to increase the air volume.
Specifically, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining a vibration difference value between the current vibration amplitude and the target vibration amplitude, determining a rotation speed adjustment amount according to the vibration difference value, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount, for example, calculating the vibration difference value between the current vibration amplitude and the target vibration amplitude, determining the rotation speed adjustment amount according to the vibration difference value, and generating the rotation speed adjustment instruction carrying the rotation speed adjustment amount.
Here, when the current vibration amplitude obtained by the performance tester is higher than the target vibration amplitude, it indicates that the vibration frequency of the motor is the same as or close to the natural frequency of the load of the motor, and the rotation speed of the motor needs to be adjusted to change the vibration frequency of the motor and avoid a resonance point. When the current vibration amplitude acquired by the performance tester is lower than the target vibration amplitude, the deviation between the vibration frequency of the motor and the natural frequency of the load of the motor is large, and the rotating speed of the motor needs to be adjusted to reach the target vibration amplitude.
Step 103: and sending the rotating speed adjusting instruction to the motor.
The performance tester sends the rotating speed adjusting instruction to the motor through a cable, and the motor can be a single-phase high-voltage direct-current motor or a three-phase high-voltage direct-current motor.
According to the motor rotating speed adjusting method provided by the embodiment of the invention, the current performance index is obtained, the rotating speed regulating quantity is determined by combining the target performance index, the rotating speed regulating instruction carrying the rotating speed regulating quantity is generated, the rotating speed of the motor is regulated, frequent modification of a rotating speed table is avoided, the motor performance testing period is favorably shortened, the motor development efficiency is accelerated, and the limit performance of the motor can be quickly tested even different loads are replaced.
In some embodiments, after sending the speed adjustment command to the electric machine, the method further comprises:
and acquiring the current rotating speed value of the motor.
The performance tester is connected with the motor through a cable, the performance tester acquires the current rotating speed value of the motor in real time through the cable, the performance tester generates an electric parameter for controlling the nixie tube to display according to the current rotating speed value, and the nixie tube is controlled to display the current rotating speed value, so that engineering personnel can conveniently and visually control the rotating speed adjusting process of the motor.
In some embodiments, after obtaining the current rotation speed value of the motor, the method further includes:
obtaining the current performance index of the motor, determining that the current performance index meets the target performance index, and storing the corresponding relation between the current rotating speed value and the target performance index.
Here, if the current performance index meets the target performance index, it indicates that the current rotation speed of the motor can achieve the corresponding target performance index, the rotation speed does not need to be adjusted, the performance tester stores the corresponding relation between the current rotation speed value and the target performance index, and updates the rotation speed table. In the practical application process, if the motor needs to realize the same target performance index, the motor directly calls the updated tachometer, searches the corresponding rotating speed value according to the target performance index needing to be realized, and rotates according to the searched rotating speed value.
The processing of the above steps can be specifically completed by the motor rotating speed adjusting device.
The present invention will be described in detail with reference to the following application examples.
It should be noted that the motor speed adjusting device is shown in fig. 4 and includes a processor 401, a button 405 and a digital tube 406, wherein the processor 401 is connected to the button 405 and the digital tube 406 respectively. The motor speed adjusting device is specifically located in the performance tester, wherein the keys 405 include a switch key, a speed increasing key and a speed decreasing key, one end of the cable is connected to the communication interface 403, and the other end of the cable is connected to the single-phase high-voltage direct-current motor.
The rotating speed adjusting process of the single-phase high-voltage direct-current motor in the embodiment includes the following steps as shown in fig. 2:
step 201: when the switch button is pressed, the processor 401 generates a driving signal which is sent to the single-phase high-voltage direct current motor. When the single-phase high-voltage direct-current motor is in a working state, a power meter is adopted to detect the current power loss value of the motor. The processor 401 receives the current power loss value of the motor acquired by the power meter.
Step 202: the processor 401 determines whether the current power loss value is higher than the target power loss value, and determines a rotation speed adjustment amount according to a power loss difference value between the current power loss value and the target power loss value if the current power loss value is higher than the target power loss value, and generates a rotation speed reduction instruction carrying the rotation speed adjustment amount. And if the current power loss value is low, determining a rotating speed regulating quantity according to the power loss difference value between the current power loss value and the target power loss value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity.
When the current power loss value is higher, the engineer determines the pressing times of the rotating speed reduction key according to the power loss difference value between the current power loss value and the target power loss value and the experience of the engineer. The processor 401 records the number of times the rotation speed reduction key is pressed, determines the rotation speed adjustment amount according to the number of times the rotation speed reduction key is pressed and the rotation speed stepping amount, and generates a rotation speed reduction instruction carrying the rotation speed adjustment amount. Similarly, when the current power loss value is lower, the engineer determines the pressing times of the rotating speed increasing key according to the power loss difference value between the current power loss value and the target power loss value and the experience of the engineer. The processor 401 records the number of times the rotation speed increasing key is pressed, determines the rotation speed adjustment amount according to the number of times the rotation speed increasing key is pressed and the rotation speed stepping amount, and generates a rotation speed increasing instruction carrying the rotation speed adjustment amount.
Step 203: and the performance tester sends the rotating speed increasing instruction or the rotating speed reducing instruction to the single-phase high-voltage direct-current motor.
The processor 401 can also obtain the current rotating speed value of the motor, generate an electrical parameter for controlling the nixie tube to display according to the current rotating speed value, and transmit the electrical parameter to the nixie tube 406, so that the nixie tube 406 displays the current rotating speed value, and engineering personnel can conveniently and visually control the rotating speed change process of the motor.
After obtaining the current rotation speed value of the motor, the processor 401 obtains the current performance index of the motor, determines that the current performance index meets the target performance index, and stores the corresponding relationship between the current rotation speed value and the target performance index, so that the motor directly calls the updated tachometer to realize the same target performance index.
In the embodiment of the application, for the performance index of power loss, the rotating speed regulating quantity is determined according to the power loss difference value between the current power loss value and the target power loss value, and a rotating speed regulating instruction carrying the rotating speed regulating quantity is generated so as to regulate the current rotating speed of the motor and avoid frequently modifying the rotating speed meter.
It should be noted that: in practical application, the steps 201 to 203 are executed by the motor speed adjusting device.
In order to implement the method for adjusting the rotational speed of the motor according to the embodiment of the present invention, an embodiment of the present invention further provides a device for adjusting the rotational speed of the motor, as shown in fig. 3, where the device for adjusting the rotational speed of the motor includes: an information acquisition unit 301, an instruction generation unit 302, and an instruction transmission unit 303; wherein the content of the first and second substances,
an information obtaining unit 301, configured to obtain a current performance index of the motor;
the instruction generating unit 302 is configured to determine a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generate a rotation speed adjustment instruction carrying the rotation speed adjustment amount;
and the instruction sending unit 303 is configured to send the rotation speed adjustment instruction to the motor.
In some embodiments, the instruction generation unit 302 is configured to:
determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction;
and determining that the current performance index is inferior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction.
In some embodiments, the determining that the current performance index is better than the target performance index and the performance index difference value, determining a rotation speed adjustment amount according to the performance index difference value, and generating the rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current noise decibel value is lower than the target noise decibel value and the noise decibel difference value, determining a rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
and determining that the current noise decibel value is higher than the target noise decibel value and the noise decibel difference value, determining the rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
In some embodiments, the determining that the current performance index is better than the target performance index and the performance index difference value, determining a rotation speed adjustment amount according to the performance index difference value, and generating the rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current power loss value is lower than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
and determining that the current power loss value is higher than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
In some embodiments, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
determining that the current air volume value is higher than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction;
and determining that the current air volume value is lower than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction.
In some embodiments, the determining a rotation speed adjustment amount according to a relationship between a target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount includes:
and determining a vibration difference value between the current vibration amplitude and a target vibration amplitude, determining a rotating speed regulating quantity according to the vibration difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity.
In some embodiments, the apparatus further comprises a rotational speed obtaining unit for:
and acquiring the current rotating speed value of the motor.
In some embodiments, the apparatus further comprises a correspondence storage unit configured to:
obtaining the current performance index of the motor, determining that the current performance index meets the target performance index, and storing the corresponding relation between the current rotating speed value and the target performance index.
In practical application, the information obtaining unit 301 and the instruction sending unit 303 may be implemented by a processor of a motor speed adjusting device in combination with a communication interface; the instruction generating unit 302 may be implemented by a processor of the motor speed adjusting apparatus.
It should be noted that: in the motor rotation speed adjusting apparatus provided in the above embodiment, when the motor rotation speed is adjusted, only the division of the above program modules is taken as an example, and in practical applications, the processing of the above program modules may be distributed to different program modules according to needs, that is, the internal structure of the motor rotation speed adjusting apparatus is divided into different program modules to complete all or part of the above described processing. In addition, the motor speed adjusting device and the motor speed adjusting method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
In order to implement the method for adjusting the rotational speed of the motor according to the embodiment of the present invention, an embodiment of the present invention further provides a device for adjusting the rotational speed of the motor based on hardware, and as shown in fig. 4, the device 410 for adjusting the rotational speed of the motor includes: a processor 401 and a memory 402 for storing a computer program operable on the processor, wherein the processor 401, when executing the computer program, is adapted to perform:
acquiring a current performance index of the motor;
determining a rotating speed regulating quantity according to the relation between a target performance index and the current performance index, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity;
and sending the rotating speed adjusting instruction to the motor.
In some embodiments, the processor 401 is further configured to, when executing the computer program, perform:
determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction;
and determining that the current performance index is inferior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction.
In some embodiments, the processor 401 is further configured to, when executing the computer program, perform:
the current performance index is a current noise decibel value, the target performance index is a target noise decibel value, the current noise decibel value is lower than the target noise decibel value and a noise decibel difference value, a rotating speed regulating quantity is determined according to the noise decibel difference value, and a rotating speed increasing instruction carrying the rotating speed regulating quantity is generated;
and determining that the current noise decibel value is higher than the target noise decibel value and the noise decibel difference value, determining the rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
In some embodiments, the processor 401 is further configured to, when executing the computer program, perform:
the current performance index is a current power loss value, the target performance index is a target power loss value, the current power loss value is determined to be lower than the target power loss value and a power loss difference value, a rotating speed regulating quantity is determined according to the power loss difference value, and a rotating speed increasing instruction carrying the rotating speed regulating quantity is generated;
and determining that the current power loss value is higher than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
In some embodiments, the processor 401 is further configured to, when executing the computer program, perform:
the current performance index is a current air volume value, the target performance index is a target air volume value, the current air volume value is higher than the target air volume value and an air volume difference value is determined, a rotating speed regulating quantity is determined according to the air volume difference value, a rotating speed regulating instruction carrying the rotating speed regulating quantity is generated, and the rotating speed regulating instruction is a rotating speed reducing instruction;
and determining that the current air volume value is lower than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction.
In some embodiments, the processor 401 is further configured to, when executing the computer program, perform:
the current performance index is a current vibration amplitude, the target performance index is a target vibration amplitude, a vibration difference value between the current vibration amplitude and the target vibration amplitude is determined, a rotating speed regulating quantity is determined according to the vibration difference value, and a rotating speed regulating instruction carrying the rotating speed regulating quantity is generated.
In some embodiments, the processor 401 is further configured to, when executing the computer program, perform:
and acquiring the current rotating speed value of the motor.
In some embodiments, the processor 401 is further configured to, when executing the computer program, perform:
obtaining the current performance index of the motor, determining that the current performance index meets the target performance index, and storing the corresponding relation between the current rotating speed value and the target performance index.
The motor speed adjusting device and the motor speed adjusting method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Of course, in practical applications, as shown in fig. 4, the motor speed adjustment device may further include at least one communication interface 403. The various components of the motor speed adjustment device are coupled together by a bus system 404. It is understood that the bus system 404 is used to enable communications among the components. The bus system 404 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 404 in FIG. 4.
Among other things, a communications interface 403 for interacting with other devices.
Specifically, the processor 401 may send the speed adjustment command to the motor through the communication interface 403.
It will be appreciated that the memory 402 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 402 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.
The memory 402 in the embodiment of the present invention is used to store various types of data to support the operation of the motor speed adjusting apparatus.
The method disclosed in the above embodiments of the present invention may be applied to the processor 401, or implemented by the processor 401. The processor 401 may be an integrated circuit chip having signal processing capability, and more specifically, having a motor speed adjustment algorithm built therein, i.e., having motor speed adjustment capability. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 401. The Processor 401 described above may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 401 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 402, and the processor 401 reads the information in the memory 402 and performs the steps of the aforementioned methods in conjunction with its hardware.
In an exemplary embodiment, the motor speed adjusting Device may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.
In an exemplary embodiment, the embodiment of the present invention further provides a storage medium, i.e. a computer storage medium, in particular a computer readable storage medium, for example comprising a memory 402 storing a computer program, which is executable by a processor 401 of the motor speed adjusting apparatus to perform the steps of the aforementioned method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.
It should be noted that: the technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. A method of adjusting a rotational speed of a motor, the method comprising:
acquiring a current performance index of the motor;
determining a rotating speed regulating quantity according to the relation between a target performance index and the current performance index, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity;
and sending the rotating speed adjusting instruction to the motor.
2. The method according to claim 1, wherein the determining a rotation speed adjustment amount according to the relationship between the target performance index and the current performance index, and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount comprises:
determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction;
and determining that the current performance index is inferior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction.
3. The method of claim 2, wherein the current performance indicator is a current decibel value of noise, the target performance indicator is a target decibel value of noise,
the determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity comprises the following steps:
determining that the current noise decibel value is lower than the target noise decibel value and the noise decibel difference value, determining a rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
and determining that the current noise decibel value is higher than the target noise decibel value and the noise decibel difference value, determining the rotating speed regulating quantity according to the noise decibel difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
4. The method of claim 2, wherein the current performance indicator is a current power loss value and the target performance indicator is a target power loss value,
the determining that the current performance index is superior to a target performance index and a performance index difference value, determining a rotating speed regulating quantity according to the performance index difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity comprises the following steps:
determining that the current power loss value is lower than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed increasing instruction carrying the rotating speed regulating quantity;
the determining that the current performance index is inferior to the target performance index and the performance index difference value, determining a rotation speed regulating quantity according to the performance index difference value, and generating a rotation speed regulating instruction carrying the rotation speed regulating quantity includes:
and determining that the current power loss value is higher than the target power loss value and a power loss difference value, determining a rotating speed regulating quantity according to the power loss difference value, and generating a rotating speed reducing instruction carrying the rotating speed regulating quantity.
5. The method of claim 1, wherein the current performance index is a current air volume value, the target performance index is a target air volume value, and the determining a rotation speed adjustment amount according to a relationship between the target performance index and the current performance index and generating a rotation speed adjustment instruction carrying the rotation speed adjustment amount comprises:
determining that the current air volume value is higher than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed reducing instruction;
and determining that the current air volume value is lower than a target air volume value and an air volume difference value, determining a rotating speed regulating quantity according to the air volume difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity, wherein the rotating speed regulating instruction is a rotating speed increasing instruction.
6. The method of claim 1, wherein the current performance index is a current vibration amplitude, the target performance index is a target vibration amplitude, and the determining a rotation speed adjustment amount according to a relationship between the target performance index and the current performance index and generating the rotation speed adjustment instruction carrying the rotation speed adjustment amount comprises:
and determining a vibration difference value between the current vibration amplitude and a target vibration amplitude, determining a rotating speed regulating quantity according to the vibration difference value, and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity.
7. The method of claim 1, wherein after sending the speed adjustment command to the electric machine, the method further comprises:
and acquiring the current rotating speed value of the motor.
8. The method of claim 7, wherein after obtaining the current rotational speed value of the motor, the method further comprises:
obtaining the current performance index of the motor, determining that the current performance index meets the target performance index, and storing the corresponding relation between the current rotating speed value and the target performance index.
9. A motor speed adjustment device, characterized in that the device comprises:
the information acquisition unit is used for acquiring the current performance index of the motor;
the instruction generating unit is used for determining a rotating speed regulating quantity according to the relation between a target performance index and the current performance index and generating a rotating speed regulating instruction carrying the rotating speed regulating quantity;
and the command sending unit is used for sending the rotating speed adjusting command to the motor.
10. An apparatus for regulating a rotational speed of a motor, the apparatus comprising: a processor and a memory for storing a computer program capable of running on the processor;
wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 8 when running the computer program.
11. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of any of claims 1 to 8.
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| CN201811385737.4A CN111277183A (en) | 2018-11-20 | 2018-11-20 | Motor rotating speed adjusting method, device, equipment and medium |
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