Detection system for an electric machine

Abstract

The application discloses a detection system of an electric machine, and relates to the technical field of electric machines. The detection system of the electric machine comprises an upper computer, a human-computer interaction interface, a control device and an electric machine. The upper computer is used for displaying the human-computer interaction interface, the human-computer interaction interface is used for receiving a control instruction of the electric machine and displaying performance parameters of the electric machine, the control device is in communication connection with the upper computer and the electric machine, the control device is used for acquiring running data of the electric machine in response to the control instruction, and the performance parameters are determined according to the running data. The application improves the detection efficiency of the electric machine.

Description

Technical Field

[0001] This application relates to the field of motor technology, and in particular to a motor detection system. Background Technology

[0002] Currently, existing motor testing processes are typically offline, only able to inspect the appearance of motor components for defects and measure basic motor parameters (such as insulation resistance between windings and between windings and ground). They cannot detect parameters such as rated voltage, no-load current, and speed (low / high) under no-load conditions, nor can they check the motor's temperature rise and noise levels. In online mode, if abnormal motor parameters are detected, it will severely impact normal production, causing prolonged equipment downtime. In the pursuit of high efficiency, traditional motor testing systems suffer from technical problems such as low testing efficiency. Utility Model Content

[0003] This application provides a motor detection system to solve the technical problems of low detection efficiency in the prior art.

[0004] A first aspect of this application provides a detection system for an electric motor, the detection system comprising:

[0005] The host computer is used to display the human-machine interface, which is used to receive control commands from the motor and display the motor's performance parameters.

[0006] The control device is connected to both the host computer and the motor. It responds to control commands, acquires the motor's operating data, and determines performance parameters based on the operating data.

[0007] In some embodiments, the detection system further includes:

[0008] The switch is connected to both the control device and the host computer for communication. The switch is used to control the data communication between the control device and the host computer.

[0009] In some embodiments, the switch and the control device communicate via an Ethernet connection.

[0010] In some embodiments, the motor includes a frequency converter and a DC speed controller, which are used to send operating data to a control device.

[0011] In some embodiments, the detection system further includes:

[0012] An image acquisition device is connected to a control device and is used to acquire image data of the motor.

[0013] The control device is also used to determine the results of the motor's visual inspection based on the image data.

[0014] In some embodiments, the detection system further includes:

[0015] A resistance measuring device is connected to a control device and is used to acquire the resistance data of the motor.

[0016] The control device is also used to determine the resistance test results of the motor based on the resistance data.

[0017] In some embodiments, the resistance measuring device is also used to obtain the insulation resistance between the motor and the ground wire.

[0018] In some embodiments, the detection system further includes:

[0019] The sound acquisition device is connected to the control device and is used to collect the operating sound data of the motor during operation.

[0020] The control device is also used to determine the noise detection results of the motor based on the operating sound data.

[0021] In some embodiments, the control device is also configured to determine the fault detection result of the motor based on the operating data.

[0022] In some embodiments, when the fault detection result indicates the presence of a fault, the human-machine interface is also used to display fault information.

[0023] The motor detection system in this embodiment improves user interaction efficiency through a human-machine interface displayed on a host computer. At the same time, through a high-performance control device, it can autonomously and quickly determine performance parameters, thus improving the efficiency of performance parameter determination and consequently improving the detection efficiency of the motor. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural block diagram of the motor detection system provided in an embodiment of this application;

[0026] in, Figure 1 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0027] 100 Detection system, 101 Host computer, 102 Control device, 103 Switch, 104 Image acquisition device, 105 Resistance measurement device, 106 Sound acquisition device, 107 Motor. Detailed Implementation

[0028] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0029] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0030] In some embodiments, such as Figure 1 As shown, an embodiment of this application provides a detection system 100 for a motor 107, comprising:

[0031] The host computer 101 is used to display the human-machine interface, which is used to receive control commands from the motor 107 and display the performance parameters of the motor 107.

[0032] The control device 102 is communicatively connected to the host computer 101 and the motor 107. The control device 102 is used to respond to control commands, acquire the operating data of the motor 107, and determine the performance parameters based on the operating data.

[0033] In this embodiment, a detection system 100 for motor 107 is proposed to detect the operating status of motor 107 and determine whether motor 107 has a fault.

[0034] For example, motor 107 can be a DC motor or an AC motor.

[0035] The detection system 100 of the motor 107 includes a host computer 101, which is a machine that issues control commands, and a control device 102 is a device that controls the motor 107.

[0036] For example, the host computer 101 can be a computer that directly issues control commands.

[0037] For example, the control device 102 may include a programmable logic controller.

[0038] The host computer 101 is used to display the human-machine interface, which is used to receive control commands from the motor 107 and display the performance parameters of the motor 107.

[0039] For example, the control command may be a command to start or stop the motor 107.

[0040] For example, the control command may be a command for detecting the operating status of the motor 107.

[0041] For example, the human-computer interaction interface can be an interactive interface that can be operated by touch.

[0042] For example, the human-computer interaction interface can display multiple preset control commands.

[0043] The detection system 100 of motor 107 also includes a control device 102. The control device 102 is communicatively connected to the host computer 101 and the motor 107. The control device 102 is used to respond to control commands, acquire the operating data of motor 107, and determine performance parameters based on the operating data. The operating data is the real-time data of motor 107 during operation.

[0044] For example, the operating data may include a status word, the actual value of the motor 107 current, and the actual value of the motor 107 torque.

[0045] For example, performance parameters may include performance status and the presence of faults.

[0046] For example, the control device 102 may include a PLC (Programmable Logic Controller). As the core component of the control system, the PLC mainly performs functions such as logical judgment and complex algorithm calculation. The PLC communicates with the frequency converter and DC speed controller through the Profibus-DP fieldbus to obtain the performance parameters of the motor 107 in real time. The PLC also communicates with the human-machine interface through the industrial Ethernet. The operator sends control commands and obtains the performance parameters of the motor 107 in real time through the human-machine interface.

[0047] For example, control data (including start / stop commands for motor 107, setpoint values ​​for motor 107 speed, etc.) is input through a human-machine interface. The human-machine interface and the PLC communicate and exchange data via an industrial Ethernet connection. After receiving the control data from the human-machine interface, the PLC packages it into control words and parameters such as the setpoint value for motor 107 speed. The PLC then sends the packaged control data (including control words and setpoint values ​​for motor 107 speed) to the frequency converter and DC speed controller via a Profibus-DP fieldbus in message format. The frequency converter and DC speed controller receive the data from the PLC. After the data is sent, motor 107 starts running according to the control requirements, and the operating status and parameters of motor 107 (including status word, actual value of motor 107 current, and actual value of motor 107 torque) are detected. The frequency converter and DC speed controller send the operating status and parameters of motor 107 to the PLC in a packet format via the Profibus-DP fieldbus. After receiving the data sent by the frequency converter and DC speed controller, the PLC unpacks the data, performs calibration processing to convert it into readable parameters, and then sends it to the human-machine interface via industrial Ethernet so that the operator can understand the performance parameters of motor 107 in a timely manner.

[0048] It should be noted that the human-computer interaction interface displayed by the host computer 101 in this embodiment improves the user's interaction efficiency. At the same time, the high-performance control device 102 can determine the performance parameters autonomously and quickly, improving the efficiency of performance parameter determination. Therefore, the detection system 100 in this embodiment can improve the detection efficiency of the motor 107.

[0049] In this embodiment, the detection system 100 for the motor 107 improves the detection efficiency of the motor 107 through the human-machine interface displayed on the host computer 101 and the high-performance control device 102.

[0050] In some embodiments of this application, a detection system 100 for a motor 107 is provided, which further includes:

[0051] Switch 103 is communicatively connected to control device 102 and host computer 101 respectively, and is used for data communication between control device 102 and host computer 101.

[0052] In this embodiment, the detection system 100 of the motor 107 also includes a switch 103, wherein the switch 103 is a network device for forwarding electrical or optical signals.

[0053] The switch 103 is located between the control device 102 and the host computer 101, and is communicatively connected to both the control device 102 and the host computer 101. The switch 103 is used for data communication between the control device 102 and the host computer 101.

[0054] In some embodiments, the present application provides a detection system 100 for a motor 107, wherein a switch 103 and a control device 102 communicate via an Ethernet connection.

[0055] For example, the Ethernet could be an industrial Ethernet.

[0056] In some embodiments, this application provides a detection system 100 for a motor 107, the motor 107 including a frequency converter and a DC speed controller, the frequency converter and the DC speed controller being used to send operating data to a control device 102.

[0057] In this embodiment, the motor 107 includes a frequency converter and a DC speed controller. The frequency converter is a device that controls the motor 107 by changing the frequency of the operating power supply, and the DC speed controller is a device that adjusts the speed of the motor 107.

[0058] The frequency converter and the DC speed controller are respectively connected to the control device 102, and the frequency converter and the DC speed controller are used to send operating data to the control device 102.

[0059] In some embodiments of this application, a detection system 100 for a motor 107 is provided, the detection system 100 further comprising:

[0060] Image acquisition device 104 is connected to control device 102 and is used to acquire image data of motor 107.

[0061] The control device 102 is also used to determine the appearance inspection results of the motor 107 based on the image data.

[0062] In this embodiment, the detection system 100 further includes an image acquisition device 104, which is connected to the control device 102 and is used to acquire image data of the motor 107.

[0063] For example, the image acquisition device 104 includes a camera.

[0064] The control device 102 is also used to determine the appearance inspection result of the motor 107 based on the image data, wherein the appearance inspection result represents the result of inspecting the appearance of the motor 107.

[0065] For example, the visual inspection results may include whether the appearance of the motor 107 is damaged, and ensure that the feet, junction box and terminals of the motor 107 are intact.

[0066] In some embodiments of this application, a detection system 100 for a motor 107 is provided, which further includes:

[0067] Resistance measuring device 105 is connected to control device 102 and is used to acquire resistance data of motor 107.

[0068] The control device 102 is also used to determine the resistance check result of the motor 107 based on the resistance data.

[0069] In this embodiment, the detection system 100 further includes a resistance measuring device 105, wherein the resistance measuring device 105 is connected to the control device 102, and the resistance measuring device 105 is used to acquire the resistance data of the motor 107, the resistance data representing the resistance value of the motor 107.

[0070] For example, the resistance measuring device 105 can be a multimeter.

[0071] For example, the resistance data may include the resistance values ​​of each winding of the motor 107.

[0072] The control device 102 is capable of receiving resistance data and is also used to determine the resistance check result of the motor 107 based on the resistance data, wherein the resistance check result indicates the normality of the resistance of the motor 107.

[0073] For example, the resistance test results indicate whether the motor 107 has a short circuit or an open circuit.

[0074] For example, when the motor 107 is de-energized, a multimeter is used to test the resistance of each winding of the motor 107 to determine whether the winding is short-circuited or open-circuited, and to ensure that the resistance of each winding is within the normal range.

[0075] In some embodiments, the present application provides a detection system 100 for a motor 107, and a resistance measuring device 105 is also used to obtain the insulation resistance value between the motor 107 and the ground wire.

[0076] In this embodiment, the resistance measuring device 105 is also used to obtain the insulation resistance value between the motor 107 and the ground wire.

[0077] For example, the insulation resistance of each winding to ground and between windings is detected by the resistance measuring device 105 to ensure that the insulation resistance is within the required range.

[0078] In some embodiments of this application, a detection system 100 for a motor 107 is provided, the detection system 100 further comprising:

[0079] The sound collector 106 is connected to the control device 102. During the operation of the motor 107, the sound collector 106 is used to collect the operating sound data of the motor 107.

[0080] The control device 102 is also used to determine the noise detection result of the motor 107 based on the operating sound data.

[0081] In this embodiment, the detection system 100 further includes a sound collector 106, which is connected to the control device 102. During the operation of the motor 107, the sound collector 106 is used to collect the operating sound data of the motor 107, wherein the operating sound data is the sound data emitted by the motor 107 during operation.

[0082] For example, the operating sound data may include the noise data of the motor 107.

[0083] The control device 102 is also used to determine the noise detection result of the motor 107 based on the operating sound data, wherein the noise detection result indicates whether the motor 107 has abnormal noise problems.

[0084] For example, first, input the basic parameters of the motor 107 nameplate into the operation panel of the frequency converter or DC speed controller as required, select the motor 107 to be tested on the human-machine interface and turn on the power, switch the operation mode to jog mode, run the motor 107 at low speed, and observe whether the motor 107 has any abnormal noise problems.

[0085] In some embodiments, the present application provides a detection system 100 for a motor 107, and the control device 102 is further configured to determine the fault detection result of the motor 107 based on operating data.

[0086] In this embodiment, the control device 102 is able to process the operating data and determine the fault detection result of the motor 107.

[0087] For example, the control device 102 can determine whether the operating data falls within a preset range, and thus determine the fault detection result of the motor 107.

[0088] For example, the fault detection result can be either that a fault exists or that a fault does not exist.

[0089] In some embodiments, the present application provides a detection system 100 for a motor 107, wherein when the fault detection result indicates that a fault exists, the human-machine interface is also used to display fault information.

[0090] In this embodiment, the fault information is the specific information about the fault. When the fault detection result indicates that a fault exists, the human-machine interface is also used to display the fault information.

[0091] For example, staff can repair motor 107 based on fault information.

[0092] For example, after confirming that there are no abnormalities in the operation test, the operation mode is switched to the test mode, and operation tests are carried out in different speed ranges. The parameters such as the no-load current value and no-load torque value of the motor 107 fed back on the human-machine interface are monitored to see if they are within the normal threshold range.

[0093] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0094] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0095] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0096] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A detection system for an electric motor, characterized in that, The detection system includes: The host computer is used to display the human-machine interface, which is used to receive control commands from the motor and display the performance parameters of the motor. A control device is communicatively connected to both the host computer and the motor. The control device is used to respond to the control command, acquire the operating data of the motor, and determine the performance parameters based on the operating data.

2. The detection system according to claim 1, characterized in that, The detection system also includes: The switch is communicatively connected to both the control device and the host computer, and is used to control the data communication between the control device and the host computer.

3. The detection system according to claim 2, characterized in that, The switch and the control device communicate via an Ethernet connection.

4. The detection system according to claim 1, characterized in that, The motor includes a frequency converter and a DC speed controller, which are used to send the operating data to the control device.

5. The detection system according to claim 1, characterized in that, The detection system also includes: An image acquisition device is connected to the control device and is used to acquire image data of the motor. The control device is also used to determine the appearance inspection result of the motor based on the image data.

6. The detection system according to claim 1, characterized in that, The detection system also includes: A resistance measuring device is connected to the control device and is used to acquire the resistance data of the motor. The control device is also used to determine the resistance check result of the motor based on the resistance data.

7. The detection system according to claim 6, characterized in that, The resistance measuring device is also used to obtain the insulation resistance value between the motor and the ground wire.

8. The detection system according to claim 1, characterized in that, The detection system also includes: A sound acquisition device is connected to the control device and is used to collect the operating sound data of the motor during motor operation. The control device is also used to determine the noise detection result of the motor based on the operating sound data.

9. The detection system according to any one of claims 1 to 8, characterized in that, The control device is also used to determine the fault detection result of the motor based on the operating data.

10. The detection system according to claim 9, characterized in that, If the fault detection result indicates that a fault exists, the human-machine interface is also used to display fault information.

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