WO2021253781A1 - 一种油气泵电机故障检测方法和装置 - Google Patents
一种油气泵电机故障检测方法和装置 Download PDFInfo
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- WO2021253781A1 WO2021253781A1 PCT/CN2020/138994 CN2020138994W WO2021253781A1 WO 2021253781 A1 WO2021253781 A1 WO 2021253781A1 CN 2020138994 W CN2020138994 W CN 2020138994W WO 2021253781 A1 WO2021253781 A1 WO 2021253781A1
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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
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
Definitions
- This application relates to the technical field of oil and gas pump motors, and in particular to a method and device for detecting faults in an oil and gas pump motor.
- Gas stations will leak oil and gas during the process of storing, transporting, and selling gasoline, causing problems such as safety, environmental protection, and low energy utilization, forcing gas stations to establish oil and gas recovery systems for oil and gas recovery.
- the oil-gas pump is a vital device in the oil-gas recovery system, and its safe operation is particularly critical.
- the fault detection method for the motor of the oil and gas pump can only detect whether the motor is over-voltage or under-voltage, and cannot determine whether the motor is locked based on current fluctuations, and cannot stop the motor when the motor is locked. Cause damage to the motor.
- the embodiment of the application provides a method and device for detecting a fault in an air-air pump motor, which solves the problem of the prior art method for detecting a fault in the motor of an air-air pump.
- the technical problem of stopping the motor running in time, causing damage to the motor achieves the technical effect of judging whether the motor is locked-rotor based on the fluctuation of the motor current, and stopping the motor running in time if a locked-rotor occurs, so as to protect the safety of the motor.
- embodiments of the present application provide a method for detecting a fault in an oil-air pump motor.
- the method includes: obtaining a first predetermined current threshold; obtaining a motor bus real-time current; and according to the motor bus real-time current, Obtain the motor bus current fluctuation value; determine whether the fluctuation value exceeds the first predetermined current threshold; if the fluctuation value exceeds the first predetermined current threshold, obtain a first instruction, and the first instruction is used for Control the motor to stop running and determine whether the motor is locked; if the motor is locked, obtain the motor locked rotor time; obtain the first predetermined time threshold; determine whether the motor locked rotor time exceeds the first A predetermined time threshold; if the locked rotor time of the motor exceeds the first predetermined time threshold, a second instruction is obtained, and the second instruction is used to check the motor bearing.
- the method includes: obtaining motor operation information; judging whether the motor is operating normally according to the motor operating information; if the motor cannot operate normally, obtaining the first current of the motor; obtaining a second predetermined current threshold; Determine whether the first current exceeds the second predetermined current threshold; if the first current exceeds the second current threshold, obtain a third instruction, and the third instruction is used to control the motor to rotate to the first Direction rotation; obtain a fourth instruction, the fourth instruction is used to control the motor to rotate in a second rotation direction after the third instruction, wherein the second rotation direction and the first rotation direction are mutually exclusive The opposite direction of rotation.
- the method includes: obtaining a third predetermined time threshold; the motor alternately executes the third instruction and the fourth instruction periodically at the third predetermined time threshold; obtaining a second predetermined time threshold; obtaining The first operating time, the first operating time is the time for the motor to execute the third instruction and the fourth instruction; it is determined whether the first operating time reaches the second predetermined time threshold; if the When the first running time reaches the second predetermined time threshold, it is determined whether the motor returns to normal.
- the judging whether the motor returns to normal includes: obtaining a fourth predetermined time; obtaining a fifth instruction, the fifth instruction being used to control the motor to perform one-way operation within the fourth predetermined threshold Instruction; determine whether the motor has jitter and/or noise when the fifth instruction is executed; if the motor does not have the jitter and/or noise when the fifth instruction is executed, determine that the motor can be Normal operation; if the motor does not have the jitter and/or noise when the fifth instruction is executed, a sixth instruction is obtained, and the sixth instruction is used to perform a rotor inspection on the motor.
- the method includes: obtaining a first position signal; obtaining a second position signal, wherein the second position signal and the first position signal are two adjacently commutated position signals; obtaining the The first time of the commutation interval between the first position signal and the second position signal; obtain a fifth predetermined time threshold; determine whether the first time exceeds the fifth predetermined time threshold; if the first time exceeds all According to the predetermined time threshold, it is determined that a Hall sensor has failed.
- the method includes: the upper computer of the motor obtains the operating information of the motor, wherein the operating information includes current, voltage, and temperature; analyzing the operating information to determine that the motor is running Whether there is no fault information found in the file.
- the analyzing the operation information to determine whether the motor has no fault information during operation includes: the dispersion degree J of the operation information measurement data is expressed by the following formula:
- the a[i] is an ideal signal
- b[i] is an actual signal
- a predetermined threshold is obtained; if J is greater than the predetermined threshold, it is determined that no fault information is found during the operation of the motor; if J is less than all
- the predetermined threshold value is used to determine that no unfound fault information occurs during the operation of the motor.
- an embodiment of the present application also provides an oil-air pump motor failure detection device, the device comprising: a first obtaining unit, the first obtaining unit is configured to obtain a first predetermined current threshold; and a second obtaining unit, The second obtaining unit is used to obtain the real-time current of the motor bus; the third obtaining unit is used to obtain the current fluctuation value of the motor bus according to the real-time current of the motor bus; The first determining unit is configured to determine whether the fluctuation value exceeds the first predetermined current threshold; the fourth obtaining unit is configured to obtain if the fluctuation value exceeds the first predetermined current threshold The first instruction, the first instruction is used to control the motor to stop running, and determine whether the motor is locked; the fifth obtaining unit, the fifth obtaining unit is used to obtain the motor if the motor is locked Locked rotor time; the sixth obtaining unit, the sixth obtaining unit is used to obtain a first predetermined time threshold; the second judging unit, the second judging unit is used to judge whether the motor locked
- the device includes: an eighth obtaining unit, the eighth obtaining unit is used to obtain motor operation information; a third judgment unit, the third judgment unit is used to determine whether the motor is Normal operation; ninth obtaining unit, the ninth obtaining unit is used to obtain the first current of the motor if the motor fails to operate normally; the tenth obtaining unit, the tenth obtaining unit is used to obtain the second predetermined current Threshold; a fourth determining unit, the fourth determining unit is used to determine whether the first current exceeds the second predetermined current threshold; an eleventh obtaining unit, the eleventh obtaining unit is used if the first When a current exceeds the second current threshold, a third instruction is obtained, and the third instruction is used to control the motor to rotate in the first rotation direction; the twelfth obtaining unit is used to obtain the first Four instructions, the fourth instruction is used to control the motor to rotate in a second rotation direction after the third instruction, wherein the second rotation direction and the first rotation direction are mutually opposite rotation directions.
- the device includes: a thirteenth obtaining unit, the thirteenth obtaining unit is used to obtain a third predetermined time threshold; a first execution unit, the first execution unit is used for the motor and the first The three predetermined time thresholds are cycles of alternately executing the third instruction and the fourth instruction; a fourteenth obtaining unit, the fourteenth obtaining unit is configured to obtain a second predetermined time threshold; a fifteenth obtaining unit, the The fifteenth obtaining unit is used to obtain the first running time, where the first running time is the time for the motor to execute the third instruction and the fourth instruction; the fifth judging unit is used by the fifth judging unit To determine whether the first running time reaches the second predetermined time threshold; a sixth determining unit, the sixth determining unit is configured to determine if the first running time reaches the second predetermined time threshold Whether the motor is back to normal.
- the sixth determining unit includes: a sixteenth obtaining unit, the sixteenth obtaining unit is used to obtain the fourth predetermined time; a seventeenth obtaining unit, the seventeenth obtaining unit is used to obtain the fifth Instruction, the fifth instruction is used to control the motor to execute the one-way operation instruction within the fourth predetermined threshold; the seventh judging unit, the seventh judging unit is used to judge that the motor is executing the first Whether there is jitter and/or noise when the fifth instruction The motor can operate normally; the eighteenth obtaining unit is configured to obtain the sixth instruction if the vibration and/or noise does not exist when the motor executes the fifth instruction.
- the six instructions are used to check the rotor of the motor.
- the device includes: a nineteenth obtaining unit, the nineteenth obtaining unit is used to obtain a first position signal; a twentieth obtaining unit, the twentieth obtaining unit is used to obtain a second position signal, Wherein, the second position signal and the first position signal are two adjacently commutated position signals; a twenty-first obtaining unit, and the twenty-first obtaining unit is configured to obtain the first position The first time of the commutation interval between the signal and the second position signal; the twenty-second obtaining unit, the twenty-second obtaining unit is configured to obtain the fifth predetermined time threshold; the eighth judging unit, the eighth judging The unit is used to determine whether the first time exceeds the fifth predetermined time threshold; the second determining unit, the second determining unit is used to determine that there is a Hall if the first time exceeds the predetermined time threshold The sensor is malfunctioning.
- the device includes: a twenty-third obtaining unit, and the twenty-third obtaining unit is used for the upper computer of the motor to obtain the operating information of the motor, wherein the operating information includes current, voltage, Temperature; a ninth determining unit, the ninth determining unit is used to analyze the operating information to determine whether the motor has no fault information found during operation.
- the ninth judging unit includes: the degree of dispersion J of the operating information measurement data is expressed by the following formula:
- a[i] is an ideal signal
- b[i] is an actual signal
- a twenty-fourth obtaining unit the twenty-fourth obtaining unit is used to obtain a predetermined threshold
- a third determining unit the third The determining unit is configured to determine that if J is greater than the predetermined threshold, determine that no fault information has been found during operation of the motor
- the fourth determining unit the fourth determining unit is configured to determine that if J is less than the predetermined threshold, There is no undiscovered fault message during the operation of the motor.
- an embodiment of the present application also provides a fault detection device for an oil and gas pump motor, including a memory, a processor, and a computer program stored in the memory and running on the processor.
- the processor executes the program, The following steps are achieved: obtain a first predetermined current threshold; obtain a real-time current of the motor bus bar; obtain a current fluctuation value of the motor bus bar according to the real-time current of the motor bus bar; determine whether the fluctuation value exceeds the first predetermined current threshold; if If the fluctuation value exceeds the first predetermined current threshold value, a first instruction is obtained.
- the first instruction is used to control the motor to stop running and determine whether the motor is locked-rotor; if the motor is locked-rotor, obtain Motor stall time; obtain a first predetermined time threshold; determine whether the motor stall time exceeds the first predetermined time threshold; if the motor stall time exceeds the first predetermined time threshold, obtain a second instruction,
- the second command is used to check motor bearings.
- the embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored.
- the program When the program is executed by a processor, the following steps are implemented: obtaining a first predetermined current threshold; obtaining a real-time current of the motor bus; According to the real-time current of the motor bus, obtain the current fluctuation value of the motor bus; determine whether the fluctuation value exceeds the first predetermined current threshold; if the fluctuation value exceeds the first predetermined current threshold, obtain a first instruction , The first instruction is used to control the motor to stop running and determine whether the motor is locked; if the motor is locked, obtain the motor locked rotor time; obtain the first predetermined time threshold; determine that the motor is blocked Whether the rotation time exceeds the first predetermined time threshold; if the motor stall time exceeds the first predetermined time threshold, a second instruction is obtained, and the second instruction is used to check the motor bearing.
- the embodiment of the application provides a method and device for detecting a fault in an oil-air pump motor.
- the method includes: obtaining a first predetermined current threshold; obtaining a real-time current of a motor bus; obtaining the current fluctuation of the motor bus according to the real-time current of the motor bus Value; determine whether the fluctuation value exceeds the first predetermined current threshold; if the fluctuation value exceeds the first predetermined current threshold, obtain a first instruction, the first instruction is used to control the motor to stop running, Determine whether the motor is locked; if the motor is locked, obtain the motor locked-rotor time; obtain a first predetermined time threshold; determine whether the motor’s locked-rotor time exceeds the first predetermined time threshold; if the When the stall time of the motor exceeds the first predetermined time threshold, a second instruction is obtained, and the second instruction is used to check the motor bearing.
- Fig. 1 is a schematic flow chart of a method for detecting a fault in an oil-air pump motor in an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of an oil-air pump motor fault detection device in an embodiment of the present invention
- Fig. 3 is a schematic structural diagram of another oil-air pump motor fault detection device in an embodiment of the present invention.
- first obtaining unit 11 second obtaining unit 12, third obtaining unit 13, first judging unit 14, fourth obtaining unit 15, fifth obtaining unit 16, sixth obtaining unit 17, second judging Unit 18, seventh obtaining unit 19, bus 300, receiver 301, processor 302, transmitter 303, memory 304, bus interface 306.
- the embodiments of the present application provide a method and device for detecting a fault in an oil-air pump motor, which solves the problem of the prior art method for detecting a fault in an oil-air pump motor.
- the technical problem of stopping the motor running in time, causing damage to the motor achieves the technical effect of judging whether the motor is locked-rotor based on the fluctuation of the motor current, and stopping the motor running in time if a locked-rotor occurs, so as to protect the safety of the motor.
- An oil-air pump motor fault detection method comprising: obtaining a first predetermined current threshold; obtaining a real-time current of the motor bus; obtaining the current fluctuation value of the motor bus according to the real-time current of the motor bus; judging whether the fluctuation value is Exceeds the first predetermined current threshold; if the fluctuation value exceeds the first predetermined current threshold, obtain a first instruction, the first instruction is used to control the motor to stop running, to determine whether the motor is locked If the motor is locked, obtain the motor locked rotor time; obtain a first predetermined time threshold; determine whether the motor locked rotor time exceeds the first predetermined time threshold; if the motor locked rotor time exceeds the first A predetermined time threshold is used to obtain a second instruction, and the second instruction is used to check the motor bearing.
- An embodiment of the present invention provides an oil-air pump motor fault detection method.
- the method is applied to an oil-air pump motor fault detection system.
- the detection system includes an upper computer and a Hall sensor.
- the Hall sensor is used to detect the For current and position information of the motor, the Hall sensor is communicatively connected with the upper computer, and the upper computer controls the operation of the motor.
- the method includes:
- Step S110 Obtain a first predetermined current threshold; specifically, the first predetermined current threshold is a preset current threshold for judging whether the motor bus current fluctuation value exceeds the range, and the first predetermined current threshold is preset Set in the host computer.
- Step S120 Obtain the real-time current of the motor bus; specifically, the real-time current is the real-time current value of the motor bus during the operation of the motor.
- Step S140 Determine whether the fluctuation value exceeds the first predetermined current threshold
- Step S150 If the fluctuation value exceeds the first predetermined current threshold, obtain a first instruction, the first instruction being used to control the motor to stop running, and to determine whether the motor is blocked;
- the host computer issues the first instruction, and the first instruction is used for Turn off the power to the motor immediately. After the motor stops running, it is detected whether the motor is blocked. Obtain the rated current of the busbar of the motor, when the stall phenomenon occurs, the torque of the motor is zero, the torque is not zero, and the busbar current of the motor is greater than 7 times the rated current. Therefore, when the torque of the motor is zero, the torque is not zero, and the current of the busbar is greater than 7 times the rated current, it is determined whether the motor is locked-rotor.
- Step S170 Obtain a first predetermined time threshold
- Step S180 Determine whether the locked-rotor time of the motor exceeds the first predetermined time threshold
- Step S190 If the locked rotor time of the motor exceeds the first predetermined time threshold, a second instruction is obtained, and the second instruction is used to check the motor bearing.
- the locked rotor time is greater than the first predetermined time threshold, it means that the motor locked rotor time is too long, and the windings of the motor may be burned, and the host computer issues a second command , Command to check immediately whether the bearing of the motor is damaged; when the locked-rotor time is less than the first predetermined time threshold, it means that the locked-rotor time of the motor is not long and the windings of the motor will not be burned.
- the motor bearings are ordered to check to ensure the safety of the motor bearings, so as to achieve the technical effect of ensuring the normal operation of the motor.
- the method includes: obtaining motor operation information; judging whether the motor is operating normally according to the motor operation information;
- the motor cannot operate normally, obtain the first current of the motor; obtain a second predetermined current threshold; determine whether the first current exceeds the second predetermined current threshold; if the first current exceeds the second The current threshold value, the third instruction is obtained, the third instruction is used to control the rotation of the motor in the first direction of rotation; the fourth instruction is obtained, the fourth instruction is used to control the direction of the motor after the third instruction
- the second rotation direction rotates, wherein the second rotation direction and the first rotation direction are mutually opposite rotation directions.
- the motor is a brushless DC motor, and if the brushless DC motor does not run for a long time, there may be rust marks inside the motor and the motor cannot run when the motor is started normally.
- the operation information of the electric motor is mainly the rotational speed information of the electric motor, and it can be determined whether the electric motor is operating normally according to the rotational speed information. When the rotation speed of the motor is less than the normal starting rotation speed of the motor, it is determined that the motor cannot operate normally. When the if the motor fails to operate normally, obtain the real-time current information of the motor bus, that is, the first current.
- the motor When the motor is started, the motor rotates according to the initial rotation direction.
- the first current is greater than the second predetermined current threshold, it means that the motor has a stuck phenomenon in the initial rotation direction.
- the motor is controlled to rotate around the first direction, and the first rotation direction is opposite to the initial rotation direction.
- the motor rotates in the first rotation direction for a second period of time, and the first current is not greater than the second predetermined current threshold, it means that the card slot phenomenon has disappeared, and the third instruction is issued to control
- the motor rotates in the second rotation direction for a third period of time, so as to achieve the technical effect of using a left-hand and right-hand rotation method to eliminate the card slot phenomenon under the condition that the motor is not burnt out, and to ensure the normal operation of the motor.
- the method includes: obtaining a third predetermined time threshold; the motor periodically executes the third instruction and the fourth instruction at the third predetermined time threshold;
- Obtain a second predetermined time threshold obtain a first running time, the first running time being the time for the motor to execute the third instruction and the fourth instruction; judging whether the first running time reaches the first 2. a predetermined time threshold; if the first running time reaches the second predetermined time threshold, it is determined whether the motor returns to normal.
- the first running time is the period of time during which the motor performs periodic alternate operation.
- the judging whether the motor returns to normal includes: obtaining a fourth predetermined time; obtaining a fifth instruction, and the fifth instruction is used to control the motor to perform unidirectional operation within the fourth predetermined threshold Instruction; determine whether the motor has jitter and/or noise when the fifth instruction is executed; if the motor does not have the jitter and/or noise when the fifth instruction is executed, determine that the motor can be Normal operation; if the motor does not have the jitter and/or noise when the fifth instruction is executed, a sixth instruction is obtained, and the sixth instruction is used to perform a rotor inspection on the motor.
- the motor is controlled to operate unidirectionally for the fourth predetermined time according to the first rotation direction or the second rotation direction.
- judge whether the motor has abnormal phenomena such as jitter, noise, etc. If there is no such abnormal phenomenon, it means that the motor has returned to normal and can be used normally; if there is the abnormal phenomenon, the Check the rotor of the motor. After the left-hand and right-hand rotation method is used to eliminate the jamming phenomenon, it is further determined whether the motor has other abnormal phenomena, and the normal operation of the motor is ensured, thereby achieving the technical effect of ensuring the safety of the motor.
- the method includes: obtaining a first position signal; obtaining a second position signal, wherein the second position signal and the first position signal are two adjacently commutated position signals; obtaining the The first time of the commutation interval between the first position signal and the second position signal; obtain a fifth predetermined time threshold; determine whether the first time exceeds the fifth predetermined time threshold; if the first time exceeds all According to the predetermined time threshold, it is determined that a Hall sensor has failed.
- the Hall sensor provides a position signal, and the motor can accurately perform a commutation operation according to the position signal.
- the position signal will continue to be high or low.
- the motor performs a commutation operation according to the position signal, the motor will shake and the speed will be unstable; The motor windings are damaged, so the position signal must be monitored.
- the first position signal and the second position signal are position signals provided by the Hall sensor, and the first position signal and the second position signal are different. Under normal circumstances, the first position signal and the second position signal appear at intervals, and the interval time is the same. Obtain the time interval between the first position signal and the second position signal in real time, that is, the first time. When the first time is greater than the fifth predetermined time threshold, the first position is described The signal and the second position signal do not alternately change, and it can be determined that one of the Hall sensors is malfunctioning. At this time, immediately stop the operation of the motor, detect the Hall sensor in the motor, and find the faulty Hall sensor, so as to judge whether the Hall sensor is faulty according to the interval time of the position signal, and avoid the hall sensor failure. The technical effect of failure to cause damage to the motor.
- the method includes: obtaining a predetermined period of the first position signal and the second position signal; when the first time is greater than twice the predetermined period, determining that a Hall sensor is faulty .
- the predetermined period is a complete period in which the first position signal and the second position signal are normally exchanged once.
- the first time is greater than 2 times the predetermined period, that is, when the first position signal and the second position signal are not converted in the two predetermined periods, it is determined that there is a Hall The signal is malfunctioning. It achieves the technical effect of shortening the time for determining the failure of the Hall sensor, accelerating the response speed of the detection system, detecting the failure of the Hall sensor method in time, and performing power-off protection on the motor in time to avoid damage to the motor.
- the method includes: the upper computer of the motor obtains operating information of the motor, wherein the operating information includes current, voltage, and temperature; analyzing the operating information to determine that the motor is running Whether there is no fault information found in the file.
- the operating information is information such as voltage, current, and temperature during the operation of the motor, and the operating information is transmitted to the host computer in real time via a 485 or 232 bus.
- the upper computer detects the fault information of the motor in real time according to the operation information.
- the host computer analyzes all the running information during the running of the motor, and judges whether there is no fault information in the running device of the motor, so as to pass the running information during the running of the motor, Discover the hidden fault information of the motor, discover the hidden danger of the motor in time, and ensure the technical effect of the normal and safe operation of the motor.
- the analyzing the operation information to determine whether the motor has no fault information during operation includes: the dispersion degree J of the operation information measurement data is expressed by the following formula:
- the a[i] is an ideal signal
- b[i] is an actual signal
- a predetermined threshold is obtained; if J is greater than the predetermined threshold, it is determined that no fault information is found during the operation of the motor; if J is less than all
- the predetermined threshold value is used to determine that no unfound fault information occurs during the operation of the motor.
- this embodiment is suitable for analyzing the operating information of the motor, such as the current, voltage, and temperature, and discovering hidden faults in the motor, using current information as an example.
- a[i] is the ideal current signal corresponding to the i-th actual current signal
- b[i] is the i-th actual current signal
- the duration of the fourth time period can be set by the user according to requirements.
- the fourth time period is selected during the steady-state operation of the motor, because during the acceleration and deceleration of the motor, the speed of the motor is adjusted differently, the current signal is constantly changing, and the ideal current signal is difficult to determine.
- the dispersion degree J of the n current signals is:
- b[i] is the i-th actual current signal
- a[i] is the ideal current signal corresponding to the i-th actual current signal.
- J When J is greater than the predetermined threshold, it means that during the fourth time period, the motor has abnormal current during operation. If it is determined that the motor has no fault information during operation, it is necessary to check the abnormal current. Further analysis is performed to determine the undiscovered fault information; when J is less than the predetermined threshold, it means that during the fourth time period, there is no current abnormality during the operation of the motor, and it is determined that the motor is in operation No fault not found message appears. Achieve the technical effect of judging whether the operation information is abnormal according to the dispersion of the operation information during the steady-state operation of the motor, discovering the hidden fault of the motor, and improving the accuracy of the monitoring system.
- the present invention also provides a device for detecting a fault of the oil-air pump motor.
- the device includes: a first obtaining unit 11; The first obtaining unit 11 is used to obtain a first predetermined current threshold; the second obtaining unit 12 is used to obtain the second obtaining unit 12 to obtain the real-time current of the motor bus; the third obtaining unit 13 is used to obtain According to the real-time current of the motor bus, obtain the current fluctuation value of the motor bus; a first determining unit 14, the first determining unit 14 is used to determine whether the fluctuation value exceeds the first predetermined current threshold; fourth The obtaining unit 15, the fourth obtaining unit 15 is configured to obtain a first instruction if the fluctuation value exceeds the first predetermined current threshold, and the first instruction is used to control the motor to stop running and determine whether the motor Whether locked rotor occurs; the fifth obtaining unit 16, the fifth obtaining unit 16 is used to obtain
- the device includes: an eighth obtaining unit, the eighth obtaining unit is used to obtain motor operation information; a third judgment unit, the third judgment unit is used to determine whether the motor is Normal operation; ninth obtaining unit, the ninth obtaining unit is used to obtain the first current of the motor if the motor fails to operate normally; the tenth obtaining unit, the tenth obtaining unit is used to obtain the second predetermined current Threshold; a fourth determining unit, the fourth determining unit is used to determine whether the first current exceeds the second predetermined current threshold; an eleventh obtaining unit, the eleventh obtaining unit is used if the first When a current exceeds the second current threshold, a third instruction is obtained, and the third instruction is used to control the motor to rotate in the first rotation direction; the twelfth obtaining unit is used to obtain the first Four instructions, the fourth instruction is used to control the motor to rotate in a second rotation direction after the third instruction, wherein the second rotation direction and the first rotation direction are mutually opposite rotation directions.
- the device includes: a thirteenth obtaining unit, the thirteenth obtaining unit is used to obtain a third predetermined time threshold; a first execution unit, the first execution unit is used for the motor and the first The three predetermined time thresholds are cycles of alternately executing the third instruction and the fourth instruction; a fourteenth obtaining unit, the fourteenth obtaining unit is configured to obtain a second predetermined time threshold; a fifteenth obtaining unit, the The fifteenth obtaining unit is used to obtain the first running time, where the first running time is the time for the motor to execute the third instruction and the fourth instruction; the fifth judging unit is used by the fifth judging unit To determine whether the first running time reaches the second predetermined time threshold; a sixth determining unit, the sixth determining unit is configured to determine if the first running time reaches the second predetermined time threshold Whether the motor is back to normal.
- the sixth determining unit includes: a sixteenth obtaining unit, the sixteenth obtaining unit is used to obtain the fourth predetermined time; a seventeenth obtaining unit, the seventeenth obtaining unit is used to obtain the fifth Instruction, the fifth instruction is used to control the motor to execute the one-way operation instruction within the fourth predetermined threshold; the seventh judging unit, the seventh judging unit is used to judge that the motor is executing the first Whether there is jitter and/or noise when the fifth instruction The motor can operate normally; the eighteenth obtaining unit is configured to obtain the sixth instruction if the vibration and/or noise does not exist when the motor executes the fifth instruction.
- the six instructions are used to check the rotor of the motor.
- the device includes: a nineteenth obtaining unit, the nineteenth obtaining unit is used to obtain a first position signal; a twentieth obtaining unit, the twentieth obtaining unit is used to obtain a second position signal, Wherein, the second position signal and the first position signal are two adjacently commutated position signals; a twenty-first obtaining unit, and the twenty-first obtaining unit is configured to obtain the first position The first time of the commutation interval between the signal and the second position signal; the twenty-second obtaining unit, the twenty-second obtaining unit is configured to obtain the fifth predetermined time threshold; the eighth judging unit, the eighth judging The unit is used to determine whether the first time exceeds the fifth predetermined time threshold; the second determining unit, the second determining unit is used to determine that there is a Hall if the first time exceeds the predetermined time threshold The sensor is malfunctioning.
- the device includes: a twenty-third obtaining unit, and the twenty-third obtaining unit is used for the upper computer of the motor to obtain the operating information of the motor, wherein the operating information includes current, voltage, Temperature; a ninth determining unit, the ninth determining unit is used to analyze the operating information to determine whether the motor has no fault information found during operation.
- the ninth judging unit includes: the degree of dispersion J of the operating information measurement data is expressed by the following formula:
- a[i] is an ideal signal
- b[i] is an actual signal
- a twenty-fourth obtaining unit the twenty-fourth obtaining unit is used to obtain a predetermined threshold
- a third determining unit the third The determining unit is configured to determine that if J is greater than the predetermined threshold, determine that no fault information has been found during operation of the motor
- the fourth determining unit the fourth determining unit is configured to determine that if J is less than the predetermined threshold, There is no unfound fault message during the operation of the motor.
- the present invention also provides an oil-air pump motor fault detection device, on which a computer program is stored, and when the program is executed by a processor, the foregoing An oil-air pump motor fault detection method is the steps of any method.
- the bus architecture (represented by a bus 300), the bus 300 can include any number of interconnected buses and bridges, and the bus 300 will include one or more processors represented by the processor 302 and a memory 304 representing The various circuits of the memory are linked together.
- the bus 300 may also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further description will be given herein.
- the bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303.
- the receiver 301 and the transmitter 303 may be the same element, that is, a transceiver, which provides a unit for communicating with various other devices on the transmission medium.
- the processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used to store data used by the processor 302 when performing operations.
- the present invention also provides a computer-readable storage medium on which a computer program is stored.
- a first predetermined current threshold obtain the real-time current of the motor bus; obtain the current fluctuation value of the motor bus according to the real-time current of the motor bus; determine whether the fluctuation value exceeds the first predetermined current threshold; if the fluctuation value exceeds
- the first predetermined current threshold obtains a first instruction, and the first instruction is used to control the motor to stop running and determine whether the motor is locked-rotor; if the motor is locked-rotor, obtain the motor locked-rotor time; Obtain a first predetermined time threshold; determine whether the locked-rotor time of the motor exceeds the first predetermined time threshold; if the locked-rotor time of the motor exceeds the first predetermined time threshold, obtain a second instruction, the second instruction Used to check motor bearings.
- any method step in the first embodiment can also be implemented.
- the above-mentioned one or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
- the embodiments of the present application provide a method and device for detecting a fault of an oil-air pump motor, and the method includes: obtaining a first A predetermined current threshold; obtain the real-time current of the motor bus; obtain the current fluctuation value of the motor bus according to the real-time current of the motor bus; determine whether the fluctuation value exceeds the first predetermined current threshold; if the fluctuation value exceeds the A first predetermined current threshold value is obtained, and a first instruction is obtained.
- the first instruction is used to control the motor to stop running and determine whether the motor is blocked; if the motor is blocked, obtain the motor blocked time; obtain the first A predetermined time threshold; determine whether the locked-rotor time of the motor exceeds the first predetermined time threshold; if the locked-rotor time of the motor exceeds the first predetermined time threshold, a second instruction is obtained, and the second instruction is used for Check the motor bearings.
- the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may be in the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
- the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
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Abstract
一种油气泵电机故障检测方法和装置，涉及油气泵电机技术领域，方法包括：获得第一预定电流阈值（S110）；获得电机母线实时电流（S120）；根据电机母线实时电流，获得电机母线电流波动值（S130）；判断波动值是否超过第一预定电流阈值（S140）；如果波动值超过第一预定电流阈值，获得第一指令，第一指令用于控制电机停止运行，判断电机是否发生堵转（S150）；如果电机发生堵转，获得电机堵转时间（S160）；获得第一预定时间阈值（S170）；判断电机堵转时间是否超过第一预定时间阈值（S180）；如果电机堵转时间超过第一预定时间阈值，获得第二指令，第二指令用于检查电机轴承（S190）。达到了根据电机电流的波动情况判断电机是否发生堵转，如果发生堵转及时停止电机运行，保护电机安全的技术效果。
Description
本申请涉及油气泵电机技术领域，尤其涉及一种油气泵电机故障检测方法和装置。
加油站在储运、销售汽油过程中会产生油气泄露，造成安全、环保和能源利用率低等问题，迫使加油站建立油气回收系统进行油气回收。油气泵作为油气回收系统中至关重要装置，它的安全运行显得尤为关键。
但本申请发明人在实现本申请实施例中技术方案的过程中，发现上述现有技术至少存在如下技术问题：
现有技术中，油气泵电机故障检测方法只能检测出电机是超压或是欠压，不能根据电流的波动情况判断电机是否发生堵转，更不能当电机发生堵转时，停止电机运行，造成电机损坏。
本申请实施例通过提供一种油气泵电机故障检测方法和装置，解决了现有技术中对油气泵电机故障检测方法，不能根据电流的波动情况判断电机是否发生堵转，更不能当电机发生堵转时，及时停止电机运行，造成电机损坏的技术问题，达到了根据电机电流的波动情况判断电机是否发生堵转，如果发生堵转及时停止电机运行，保护电机安全的技术效果。
为了解决上述问题，第一方面，本申请实施例提供了一种油气泵电机故障检测方法，所述方法包括：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
优选的，所述方法包括：获得电机运行信息；根据所述电机运行信息判断所述电机是否正常运行；如果所述电机无法正常运行，获得所述电机第一电流；获得第二预定电流阈值；判断所述第一电流是否超过所述第二预定电流阈值；如果所述第一电流超过所述第二电流阈值，获得第三指令，所述第三指令用于控制所述电机向第一旋转方向转动；获得第四指令，所述第四指令用于在所述第三指令之后控制所述电机向第二旋转方向转动，其中，所述第二旋转方向与所述第一旋转方向互为相反的转动方向。
优选的，所述方法包括：获得第三预定时间阈值；所述电机以所述第三预定时间阈值为周期交替执行所述第三指令和所述第四指令；获得第二预定时间阈值；获得第一运行时间，所述第一运行时间为所述电机执行所述第三指令和所述第四指令的时间；判断所述第一运行时间是否达到所述第二预定时间阈值；如果所述第一运行时间达到所述第二预定时间阈值，判断所述电机是否恢复正常。
优选的，所述判断所述电机是否恢复正常，包括：获得第四预定时间；获得第五指令，所述第五指令用于控制所述电机在所述第四预定阈值之内执行单向运行指令；判断所述电机在执行所述第五指令时，是否存在抖动和/或噪音；如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，确定所述电机可正常运行；如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，获得第六指令，所述第六指令用于对所述电机进行转子检查。
优选的，所述方法包括：获得第一位置信号；获得第二位置信号，其中，所述第二位置信号与所述第一位置信号互为两次相邻换相的位置信号；获得所述第一位置信号与所述第二位置信号换相间隔的第一时间；获得第五预定时间阈值；判断所述第一时间是否超过所述第五预定时间阈值；如果所述第一时间超过所述预定时间阈值，确定有一个霍尔传感器出现故障。
优选的，所述方法包括：所述电机的上位机获得所述电机的运行信息，其中，所述运行信息包括电流、电压、温度；对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息。
优选的，所述对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息，包括：运行信息测量数据的离散程度J用如下公式表示：
其中，所述a[i]为理想信号；b[i]为实际信号；获得预定阈值；如果J大于所述预定阈值，确定所述电机在运行过程中出现未发现故障信息；如果J小于所述预定阈值，确定所述电机在运行过程中未出现未发现故障信息。
第二方面，本申请实施例还提供了一种油气泵电机故障检测装置，所述装置包括：第一获得单元，所述第一获得单元用于获得第一预定电流阈值；第二获得单元，所述第二获得单元用于获得电机母线实时电流；第三获得单元，所述第三获得单元用于根据所述电机母线实时电流，获得所述电机母线电流波动值；第一判断单元，所述第一判断单元用于判断所述波动值是否超过所述第一预定电流阈值；第四获得单元，所述第四获得单元用于如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；第五获得单元，所述第五获得单元用于如果所述电机发生堵转，获得电机堵转时间；第六获得单元，所述第六获得单元用于获得第一预定时间阈值；第二判断单元，所述第二判断单元用于判断所述电机堵转时间是否超过所述第一预定时间阈值；第七获得单元，所述第七获得单元用于如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
优选的，所述装置包括：第八获得单元，所述第八获得单元用于获得电机运行信息；第三判断单元，所述第三判断单元用于根据所述电机运行信息判断所述电机是否正常运行；第九获得单元，所述第九获得单元用于如果所述电机无法正常运行，获得所述电机第一电流；第十获得单元，所述第十获得单元用于获得第二预定电流阈值；第四判断单元，所述第四判断单元用于判断所述第一电流是否超过所述第二预定电流阈值；第十一获得单元，所述第十一获得单元用于如果所述第一电流超过所述第二电流阈值，获得第三指令，所述第三指令用于控制所述电机向第一旋转方向转动；第十二获得单元，所述第十二获得单元用于获得第四指令，所述第四指令用于在所述第三指令之后控制所述电机向第二旋转方向转动，其中，所述第二旋转方向与所述第一旋转方向互为相反的转动方向。
优选的，所述装置包括：第十三获得单元，所述第十三获得单元用于获得第三预定时间阈值；第一执行单元，所述第一执行单元用于所述电机以所述第三预定时间阈值为周期交替执行所述第三指令和所述第四指令；第十四获得单元，所述第十四获得单元用于获得第二预定时间阈值；第十五获得单元，所述第十五获得单元用于获得第一运行时间，所述第一运行时间为所述电机执行所述第三指令和所述第四指令的时间；第五判断单元，所述第五判断单元用于判断所述第一运行时间是否达到所述第二预定时间阈值；第六判断单元，所述第六判断单元用于如果所述第一运行时间达到所述第二预定时间阈值，判断所述电机是否恢复正常。
优选的，所述第六判断单元包括：第十六获得单元，所述第十六获得单元用于获得第四预定时间；第十七获得单元，所述第十七获得单元用于获得第五指令，所述第五指令用于控制所述电机在所述第四预定阈值之内执行单向运行指令；第七判断单元，所述第七判断单元用于判断所述电机在执行所述第五指令时，是否存在抖动和/或噪音；第一确定单元，所述第一确定单元用于如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，确定所述电机可正常运行；第十八获得单元，所述第十八获得单元用于如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，获得第六指令，所述第六指令用于对所述电机进行转子检查。
优选的，所述装置包括：第十九获得单元，所述第十九获得单元用于获得第一位置信号；第二十获得单元，所述第二十获得单元用于获得第二位置信号，其中，所述第二位置信号与所述第一位置信号互为两次相邻换相的位置信号；第二十一获得单元，所述第二十一获得单元用于获得所述第一位置信号与所述第二位置信号换相间隔的第一时间；第二十二获得单元，所述第二十二获得单元用于获得第五预定时间阈值；第八判断单元，所述第八判断单元用于判断所述第一时间是否超过所述第五预定时间阈值；第二确定单元，所述第二确定单元用于如果所述第一时间超过所述预定时间阈值，确定有一个霍尔传感器出现故障。
优选的，所述装置包括：第二十三获得单元，所述第二十三获得单元用于所述电机的上位机获得所述电机的运行信息，其中，所述运行信息包括电流、电压、温度；第九判断单元，所述第九判断单元用于对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息。
优选的，所述第九判断单元包括：运行信息测量数据的离散程度J用如下公式表示：
其中，所述a[i]为理想信号；b[i]为实际信号；第二十四获得单元，所述第二十四获得单元用于获得预定阈值；第三确定单元，所述第三确定单元用于如果J大于所述预定阈值，确定所述电机在运行过程中出现未发现故障信息；第四确定单元，所述第四确定单元用于如果J小于所述预定阈值，确定所述电机在运行过程中未出现未发现故障信息。
第三方面，本申请实施例还提供了一种油气泵电机故障检测装置，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现以下步骤：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
第四方面，本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现以下步骤：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
本申请实施例中的上述一个或多个技术方案，至少具有如下一种或多种技术效果：
本申请实施例通过提供一种油气泵电机故障检测方法和装置，所述方法包括：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。解决了现有技术中对油气泵电机故障检测方法，不能根据电流的波动情况判断电机是否发生堵转，更不能当电机发生堵转时，及时停止电机运行，造成电机损坏的技术问题，达到了根据电机电流的波动情况判断电机是否发生堵转，如果发生堵转及时停止电机运行，保护电机安全的技术效果。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
图1为本发明实施例中一种油气泵电机故障检测方法的流程示意图；
图2为本发明实施例中一种油气泵电机故障检测装置的结构示意图；
图3为本发明实施例中另一种油气泵电机故障检测装置的结构示意图。
附图标记说明：第一获得单元11，第二获得单元12，第三获得单元13，第一判断单元14，第四获得单元15，第五获得单元16，第六获得单元17，第二判断单元18，第七获得单元19，总线300，接收器301，处理器302，发送器303，存储器304，总线接口306。
本申请实施例提供了一种油气泵电机故障检测方法和装置，解决了现有技术中对油气泵电机故障检测方法，不能根据电流的波动情况判断电机是否发生堵转，更不能当电机发生堵转时，及时停止电机运行，造成电机损坏的技术问题，达到了根据电机电流的波动情况判断电机是否发生堵转，如果发生堵转及时停止电机运行，保护电机安全的技术效果。
为了解决上述技术问题，本申请提供的技术方案总体思路如下：
一种油气泵电机故障检测方法，所述方法包括：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。解决了现有技术中对油气泵电机故障检测方法，不能根据电流的波动情况判断电机是否发生堵转，更不能当电机发生堵转时，及时停止电机运行，造成电机损坏的技术问题，达到了根据电机电流的波动情况判断电机是否发生堵转，如果发生堵转及时停止电机运行，保护电机安全的技术效果。
下面通过附图以及具体实施例对本申请技术方案做详细的说明，应当理解本申请实施例以及实施例中的具体特征是对本申请技术方案的详细的说明，而不是对本申请技术方案的限定，在不冲突的情况下，本申请实施例以及实施例中的技术特征可以相互组合。
实施例一
本发明实施例提供的一种油气泵电机故障检测方法，所述方法应用于一油气泵电机故障检测系统，所述检测系统包括上位机、霍尔传感器，所述霍尔传感器用于检测所述电机的电流和位置信息，所述霍尔传感器与所述上位机通讯连接，所述上位机控制所述电机的运行。所述方法包括：
步骤S110：获得第一预定电流阈值；具体而言，所述第一预定电流阈值为一预先设定的电流阈值，用于判断电机母线电流波动值是否超范围，所述第一预定电流阈值预先设定在所述上位机内。
步骤S120：获得电机母线实时电流；具体而言，所述实时电流为所述电机在运行过程中，所述电机母线的实时电流值。
步骤S130：根据所述电机母线实时电流，获得所述电机母线电流波动值；具体而言，获得第一时间段内所述实时电流的最小值和最大值，所述波动值=所述最大值-所述最小值。
步骤S140：判断所述波动值是否超过所述第一预定电流阈值；
步骤S150：如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；
具体而言，当所述波动值大于所述第一预定电流阈值，说明所述母线的电流波动过大，电流不稳定，所述上位机发出所述第一指令，所述第一指令用于立即关闭所述电机的电源。所述电机停止运行后，检测所述电机是否发生堵转现象。获得所述电机的母线的额定电流，当所述发生堵转现象时，所述电机的转矩为零，扭矩不为零，所述电机的母线电流大于所述额定电流的7倍。因此，当所述电机的转矩为零，扭矩不为零，且所述母线的电流大于所述额定电流的7倍时，判定所述电机是否发生堵转现象。
步骤S160：如果所述电机发生堵转，获得电机堵转时间；具体而言，当判定所述电机发生堵转现象时，获得第一时间点，所述第一时间点为所述电机的母线电流大于7倍所述额定电流的开始时间。获得第二时间点，所述第二时间点为所述电机他停止运转的时间点，所述堵转时间=所述第二时间点-所述第一时间点。
步骤S170：获得第一预定时间阈值；
步骤S180：判断所述电机堵转时间是否超过所述第一预定时间阈值；
步骤S190：如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
具体而言，当所述堵转时间大于所述第一预定时间阈值时，说明所述电机堵转时间过长，所述电机的绕组会有被烧毁的可能，所述上位机发出第二指令，指令立即检查所述电机的轴承是否损坏；当所述堵转时间小于所述第一预定时间阈值时，说明所述电机堵转时间不长，所述电机的绕组不会被烧毁。达到根据堵转时间判断电机绕组是否有烧坏的可能，指令对电机轴承进行检查，确保电机轴承的安全，从而达到保证电机正常运行的技术效果。
进一步的，所述方法包括：获得电机运行信息；根据所述电机运行信息判断所述电机是否正常运行；
如果所述电机无法正常运行，获得所述电机第一电流；获得第二预定电流阈值；判断所述第一电流是否超过所述第二预定电流阈值；如果所述第一电流超过所述第二电流阈值，获得第三指令，所述第三指令用于控制所述电机向第一旋转方向转动；获得第四指令，所述第四指令用于在所述第三指令之后控制所述电机向第二旋转方向转动，其中，所述第二旋转方向与所述第一旋转方向互为相反的转动方向。
具体而言，所述电机为无刷直流电机，无刷直流电机长时间不运行，其内部可能会有锈迹出现卡槽现象，正常启动电机时，电机无法运行。所述电机的运行信息主要为所述电机的转速信息，根据所述转速信息可以判断所述电机是否运转正常。当所述电机的转速小于所述电机的正常启动转速时，判定所述电机无法正常运行。当所述如果所述电机无法正常运行，获得所述电机母线的实时电流信息，即所述第一电流。
当启动所述电机时，所述电机按照初始旋转方向转动，当所述第一电流大于所述第二预定电流阈值时，说明所述电机的在所述初始旋转方向有卡槽现象，此时控制所述电机绕所述第一方向旋转，所述第一旋转方向与所述初始旋转方向相反。当所述电机沿所述第一旋转方向旋转第二时间段，且所述第一电流不大于所述第二预定电流阈值时，说明所述卡槽现象消失，发出所述第三指令，控制所述电机沿所述第二旋转方向转动第三时间段，达到在保证电机不被烧坏的情况下，采用左旋右旋方法消除卡槽现象，保证所述电机可正常运转的技术效果。
进一步的，所述方法包括：获得第三预定时间阈值；所述电机以所述第三预定时间阈值为周期交替执行所述第三指令和所述第四指令；
获得第二预定时间阈值；获得第一运行时间，所述第一运行时间为所述电机执行所述第三指令和所述第四指令的时间；判断所述第一运行时间是否达到所述第二预定时间阈值；如果所述第一运行时间达到所述第二预定时间阈值，判断所述电机是否恢复正常。
具体而言，所述电机以所述第三预定时间阈值为周期，交替地向第一旋转方向、所述第二旋转方向旋转，即所述第一时间段+所述第二时间段=所述第三预定时间阈值，其中所述第三预定时间阈值为1-2分钟。所述第一运行时间为所述电机进行周期交替运行的时间，当所述第一运行时间等于所述第二预定时间阈值时，即当所述电机运行所述第一预定时间阈值时长后，判断所述电机是否恢复正常，若所述电机恢复正常说明卡槽现象消失。
进一步的，所述判断所述电机是否恢复正常，包括：获得第四预定时间；获得第五指令，所述第五指令用于控制所述电机在所述第四预定阈值之内执行单向运行指令；判断所述电机在执行所述第五指令时，是否存在抖动和/或噪音；如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，确定所述电机可正常运行；如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，获得第六指令，所述第六指令用于对所述电机进行转子检查。
具体而言，在对所述电机进行周期交替运行后，控制所述电机按照所述所述第一旋转方向或所述第二旋转方向单向运行所述第四预定时间。在单向运行过程中，判断所述电机是否存在抖动、噪音等异常现象，若不存在所述异常现象，说明所述电机恢复正常，可正常使用；若存在所述异常现象，则对所述电机的转子进行检查。达到在利用左旋右旋法消除卡槽现象后，进一步判定所述电机是否有其他异常现象，保证电机可正常运行，从而达到保证电机使用安全的技术效果。
进一步的，所述方法包括：获得第一位置信号；获得第二位置信号，其中，所述第二位置信号与所述第一位置信号互为两次相邻换相的位置信号；获得所述第一位置信号与所述第二位置信号换相间隔的第一时间；获得第五预定时间阈值；判断所述第一时间是否超过所述第五预定时间阈值；如果所述第一时间超过所述预定时间阈值，确定有一个霍尔传感器出现故障。
具体而言，在所述电机运行过程中霍尔传感器提供位置信号，所述电机根据所述位置信号能够准确进行换相操作。但是当霍尔传感器出现故障时，所述位置信号会持续为高电平或者低电平，所述电机根据所述位置信号进行换向操作时，轻则电机抖动，转速不平稳；严重时会损坏电机绕组，因此必须对所述位置信号进行监测。
所述第一位置信号、所述第二位置信号为所述霍尔传感器提供的位置信号，且所述第一位置信号、所述第二位置信号不同。正常情况下，所述第一位置信号、所述第二位置信号间隔出现，且间隔时间相同。实时获得所述第一位置信号、所述第二位置信号之间的时间间隔，即所述第一时间，当所述第一时间大于所述第五预定时间阈值时，说明所述第一位置信号、所述第二位置信号不发生交替变换，可以确定有一个霍尔传感器出现故障。此时，立即停止所述电机的运行，对所述电机内的霍尔传感器进行检测，发现故障的霍尔传感器，达到根据位置信号的间隔时间判断霍尔传感器是否发生故障，避免因霍尔传感器发生故障对所述电机造成损坏的技术效果。
进一步的，所述方法包括：获得所述第一位置信号、所述第二位置信号的预定周期；当所述第一时间大于所述预定周期的2倍时，判定有一个霍尔传感器出现故障。
具体而言，所述预定周期为所述第一位置信号、所述第二位置信号正常交换一次的完整周期。当所述第一时间大于所述预定周期的2倍时，即当在两个所述预定周期内，所述第一位置信号、所述第二位置信号没有发生转换时，判定有一个霍尔信号发生故障。达到缩短判定霍尔传感器发生故障的时间，加快所述检测系统的响应速度，及时发现霍尔传感器法发生故障，及时对电机进行断电保护，避免电机损坏的技术效果。
进一步的，所述方法包括：所述电机的上位机获得所述电机的运行信息，其中，所述运行信息包括电流、电压、温度；对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息。
具体而言，所述运行信息为所述电机运行过程中的电压、电流、温度等信息，将所述运行信息通过485或232总线实时传递给所述所述上位机。在所述电机运行过程中，所述上位机根据所述运行信息实时检测出所述电机的故障信息。在所述电机结束运行后，所述上位机对所述电机运行期间的所有所述运行信息进行分析，判断所述电机在运行器件是否出现未发现故障信息，达到通过电机运行期间的运行信息，发现电机存在的隐性故障信息，及时发现电机的安全隐患，保证电机正常安全运行的技术效果。
进一步的，所述对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息，包括：运行信息测量数据的离散程度J用如下公式表示：
其中，所述a[i]为理想信号；b[i]为实际信号；获得预定阈值；如果J大于所述预定阈值，确定所述电机在运行过程中出现未发现故障信息；如果J小于所述预定阈值，确定所述电机在运行过程中未出现未发现故障信息。
具体而言，本实施例适合于对所述电机的电流、电压、温度等所述运行信息进行分析，发现电机中存在的隐性故障，以电流信息为例。在第四时间段内，相隔相同的时间间隔取n个实际的电流信号，a[i]为第i个实际电流信号所对应的理想电流信号，b[i]为第i个实际电流信号，其中，所述第四时间段的时长用户可根据需求进行设置。所述第四时间段选取在所述电机稳态运行过程中，因为在电机加减速期间，电机的转速在不同的调整，所述电流信号不断的变化，且所述理想电流信号难以确定。所述第四时间段内，n个电流信号的离散程度J为：
其中，b[i]为第i个实际电流信号；a[i]为第i个实际电流信号所对应的理想电流信号。
当J大于所述预定阈值，说明在所述第四时间段内，所述电机在运行过程中出现电流异常，确定所述电机在运行过程中出现未发现故障信息，需要对出现异常的电流进行进一步分析，确定所述未发现的故障信息；当J小于所述预定阈值，说明在所述第四时间段内，所述电机在运行过程中没有出现电流异常，确定所述电机在运行过程中未出现未发现故障信息。达到根据电机稳态运行过程中，运行信息的离散度判断所述运行信息是否出现异常，发现所述电机隐性故障，提高监测系统的准确性的技术效果。
实施例二
基于与前述实施例中一种油气泵电机故障检测方法同样的发明构思，本发明还提供一种油气泵电机故障检测装置，如图2所示，所述装置包括：第一获得单元11，所述第一获得单元11用于获得第一预定电流阈值；第二获得单元12，所述第二获得单元12用于获得电机母线实时电流；第三获得单元13，所述第三获得单元13用于根据所述电机母线实时电流，获得所述电机母线电流波动值；第一判断单元14，所述第一判断单元14用于判断所述波动值是否超过所述第一预定电流阈值；第四获得单元15，所述第四获得单元15用于如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；第五获得单元16，所述第五获得单元16用于如果所述电机发生堵转，获得电机堵转时间；第六获得单元17，所述第六获得单元17用于获得第一预定时间阈值；第二判断单元18，所述第二判断单元18用于判断所述电机堵转时间是否超过所述第一预定时间阈值；第七获得单元19，所述第七获得单元19用于如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
优选的，所述装置包括：第八获得单元，所述第八获得单元用于获得电机运行信息；第三判断单元，所述第三判断单元用于根据所述电机运行信息判断所述电机是否正常运行；第九获得单元，所述第九获得单元用于如果所述电机无法正常运行，获得所述电机第一电流；第十获得单元，所述第十获得单元用于获得第二预定电流阈值；第四判断单元，所述第四判断单元用于判断所述第一电流是否超过所述第二预定电流阈值；第十一获得单元，所述第十一获得单元用于如果所述第一电流超过所述第二电流阈值，获得第三指令，所述第三指令用于控制所述电机向第一旋转方向转动；第十二获得单元，所述第十二获得单元用于获得第四指令，所述第四指令用于在所述第三指令之后控制所述电机向第二旋转方向转动，其中，所述第二旋转方向与所述第一旋转方向互为相反的转动方向。
优选的，所述装置包括：第十三获得单元，所述第十三获得单元用于获得第三预定时间阈值；第一执行单元，所述第一执行单元用于所述电机以所述第三预定时间阈值为周期交替执行所述第三指令和所述第四指令；第十四获得单元，所述第十四获得单元用于获得第二预定时间阈值；第十五获得单元，所述第十五获得单元用于获得第一运行时间，所述第一运行时间为所述电机执行所述第三指令和所述第四指令的时间；第五判断单元，所述第五判断单元用于判断所述第一运行时间是否达到所述第二预定时间阈值；第六判断单元，所述第六判断单元用于如果所述第一运行时间达到所述第二预定时间阈值，判断所述电机是否恢复正常。
优选的，所述第六判断单元包括：第十六获得单元，所述第十六获得单元用于获得第四预定时间；第十七获得单元，所述第十七获得单元用于获得第五指令，所述第五指令用于控制所述电机在所述第四预定阈值之内执行单向运行指令；第七判断单元，所述第七判断单元用于判断所述电机在执行所述第五指令时，是否存在抖动和/或噪音；第一确定单元，所述第一确定单元用于如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，确定所述电机可正常运行；第十八获得单元，所述第十八获得单元用于如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，获得第六指令，所述第六指令用于对所述电机进行转子检查。
优选的，所述装置包括：第十九获得单元，所述第十九获得单元用于获得第一位置信号；第二十获得单元，所述第二十获得单元用于获得第二位置信号，其中，所述第二位置信号与所述第一位置信号互为两次相邻换相的位置信号；第二十一获得单元，所述第二十一获得单元用于获得所述第一位置信号与所述第二位置信号换相间隔的第一时间；第二十二获得单元，所述第二十二获得单元用于获得第五预定时间阈值；第八判断单元，所述第八判断单元用于判断所述第一时间是否超过所述第五预定时间阈值；第二确定单元，所述第二确定单元用于如果所述第一时间超过所述预定时间阈值，确定有一个霍尔传感器出现故障。
优选的，所述装置包括：第二十三获得单元，所述第二十三获得单元用于所述电机的上位机获得所述电机的运行信息，其中，所述运行信息包括电流、电压、温度；第九判断单元，所述第九判断单元用于对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息。
优选的，所述第九判断单元包括：运行信息测量数据的离散程度J用如下公式表示：
其中，所述a[i]为理想信号；b[i]为实际信号；第二十四获得单元，所述第二十四获得单元用于获得预定阈值；第三确定单元，所述第三确定单元用于如果J大于所述预定阈值，确定所述电机在运行过程中出现未发现故障信息；第四确定单元，所述第四确定单元用于如果J小于所述预定阈值，确定所述电机在运行过程中未出现未发现故障信息。
前述图1实施例一中的一种油气泵电机故障检测方法的各种变化方式和具体实例同样适用于本实施例的一种油气泵电机故障检测装置，通过前述对一种油气泵电机故障检测方法的详细描述，本领域技术人员可以清楚的知道本实施例中一种油气泵电机故障检测装置的实施方法，所以为了说明书的简洁，在此不再详述。
实施例三
基于与前述实施例中一种油气泵电机故障检测方法同样的发明构思，本发明还提供一种油气泵电机故障检测装置，其上存储有计算机程序，该程序被处理器执行时实现前文所述一种油气泵电机故障检测方法的任一方法的步骤。
其中，在图3中，总线架构（用总线300来代表），总线300可以包括任意数量的互联的总线和桥，总线300将包括由处理器302代表的一个或多个处理器和存储器304代表的存储器的各种电路链接在一起。总线300还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口306在总线300和接收器301和发送器303之间提供接口。接收器301和发送器303可以是同一个元件，即收发机，提供用于在传输介质上与各种其他装置通信的单元。
处理器302负责管理总线300和通常的处理，而存储器304可以被用于存储处理器302在执行操作时所使用的数据。
实施例四
基于与前述实施例中一种油气泵电机故障检测方法同样的发明构思，本发明还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现以下步骤：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
在具体实施过程中，该程序被处理器执行时，还可以实现实施例一中的任一方法步骤。
本申请实施例中的上述一个或多个技术方案，至少具有如下一种或多种技术效果：本申请实施例通过提供一种油气泵电机故障检测方法和装置，所述方法包括：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。解决了现有技术中对油气泵电机故障检测方法，不能根据电流的波动情况判断电机是否发生堵转，更不能当电机发生堵转时，及时停止电机运行，造成电机损坏的技术问题，达到了根据电机电流的波动情况判断电机是否发生堵转，如果发生堵转及时停止电机运行，保护电机安全的技术效果。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质（包括但不限于磁盘存储器、CD-ROM、光学存储器等）上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备（系统）、和计算机程序产品的流程图和／或方框图来描述的。应理解可由计算机程序指令实现流程图和／或方框图中的每一流程和／或方框、以及流程图和／或方框图中的流程和／或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和／或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和／或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和／或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
Claims (10)
- 一种油气泵电机故障检测方法，其特征在于，所述方法包括：获得第一预定电流阈值；获得电机母线实时电流；根据所述电机母线实时电流，获得所述电机母线电流波动值；判断所述波动值是否超过所述第一预定电流阈值；如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；如果所述电机发生堵转，获得电机堵转时间；获得第一预定时间阈值；判断所述电机堵转时间是否超过所述第一预定时间阈值；如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
- 如权利要求1所述的方法，其中，所述方法包括：获得电机运行信息；根据所述电机运行信息判断所述电机是否正常运行；如果所述电机无法正常运行，获得所述电机第一电流；获得第二预定电流阈值；判断所述第一电流是否超过所述第二预定电流阈值；如果所述第一电流超过所述第二电流阈值，获得第三指令，所述第三指令用于控制所述电机向第一旋转方向转动；获得第四指令，所述第四指令用于在所述第三指令之后控制所述电机向第二旋转方向转动，其中，所述第二旋转方向与所述第一旋转方向互为相反的转动方向。
- 如权利要求2所述的方法，其中，所述方法包括：获得第三预定时间阈值；所述电机以所述第三预定时间阈值为周期交替执行所述第三指令和所述第四指令；获得第二预定时间阈值；获得第一运行时间，所述第一运行时间为所述电机执行所述第三指令和所述第四指令的时间；判断所述第一运行时间是否达到所述第二预定时间阈值；如果所述第一运行时间达到所述第二预定时间阈值，判断所述电机是否恢复正常。
- 如权利要求3所述的方法，其中，所述判断所述电机是否恢复正常，包括：获得第四预定时间；获得第五指令，所述第五指令用于控制所述电机在所述第四预定阈值之内执行单向运行指令；判断所述电机在执行所述第五指令时，是否存在抖动和/或噪音；如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，确定所述电机可正常运行；如果所述电机在执行所述第五指令时不存在所述抖动和/或噪音，获得第六指令，所述第六指令用于对所述电机进行转子检查。
- 如权利要求1所述的方法，其中，所述方法包括：获得第一位置信号；获得第二位置信号，其中，所述第二位置信号与所述第一位置信号互为两次相邻换相的位置信号；获得所述第一位置信号与所述第二位置信号换相间隔的第一时间；获得第五预定时间阈值；判断所述第一时间是否超过所述第五预定时间阈值；如果所述第一时间超过所述预定时间阈值，确定有一个霍尔传感器出现故障。
- 如权利要求1所述的方法，其中，所述方法包括：所述电机的上位机获得所述电机的运行信息，其中，所述运行信息包括电流、电压、温度；对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息。
- 如权利要求6所述的方法，其中，所述对所述运行信息进行分析，判断所述电机在运行过程中是否出现未发现故障信息，包括：运行信息测量数据的离散程度J用如下公式表示：
其中，所述a[i]为理想信号；b[i]为实际信号；获得预定阈值；如果J大于所述预定阈值，确定所述电机在运行过程中出现未发现故障信息；如果J小于所述预定阈值，确定所述电机在运行过程中未出现未发现故障信息。 - 一种油气泵电机故障检测装置，其特征在于，所述装置包括：第一获得单元，所述第一获得单元用于获得第一预定电流阈值；第二获得单元，所述第二获得单元用于获得电机母线实时电流；第三获得单元，所述第三获得单元用于根据所述电机母线实时电流，获得所述电机母线电流波动值；第一判断单元，所述第一判断单元用于判断所述波动值是否超过所述第一预定电流阈值；第四获得单元，所述第四获得单元用于如果所述波动值超过所述第一预定电流阈值，获得第一指令，所述第一指令用于控制所述电机停止运行，判断所述电机是否发生堵转；第五获得单元，所述第五获得单元用于如果所述电机发生堵转，获得电机堵转时间；第六获得单元，所述第六获得单元用于获得第一预定时间阈值；第二判断单元，所述第二判断单元用于判断所述电机堵转时间是否超过所述第一预定时间阈值；第七获得单元，所述第七获得单元用于如果所述电机堵转时间超过所述第一预定时间阈值，获得第二指令，所述第二指令用于检查电机轴承。
- 一种油气泵电机故障检测装置，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时实现权利要求1-7任一项所述方法的步骤。
- 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现权利要求1-7任一项所述方法的步骤。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115597473A (zh) * | 2022-09-20 | 2023-01-13 | 广州汽车集团股份有限公司（Cn） | 位置确定方法、装置、车辆及存储介质 |
| CN116776074A (zh) * | 2023-08-21 | 2023-09-19 | 威晟汽车科技(宁波)有限公司 | 一种电子水泵堵转识别方法及装置 |
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| CN111751722B (zh) * | 2020-06-16 | 2022-02-01 | 苏州大学 | 一种油气泵电机故障检测方法和装置 |
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| CN113880402A (zh) * | 2021-10-22 | 2022-01-04 | 湖北楚大智能装备有限公司 | 一种制瓶机的控制方法与装置 |
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| CN111751722A (zh) | 2020-10-09 |
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