CN104297687A - Failure monitoring and alarm system for three-phase asynchronous motor - Google Patents

Failure monitoring and alarm system for three-phase asynchronous motor Download PDF

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Publication number
CN104297687A
CN104297687A CN201410658515.0A CN201410658515A CN104297687A CN 104297687 A CN104297687 A CN 104297687A CN 201410658515 A CN201410658515 A CN 201410658515A CN 104297687 A CN104297687 A CN 104297687A
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CN
China
Prior art keywords
warning
asynchronous machine
threephase asynchronous
motor
sensor
Prior art date
Application number
CN201410658515.0A
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Chinese (zh)
Inventor
许其山
曾庆平
Original Assignee
芜湖杰诺瑞汽车电器系统有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 芜湖杰诺瑞汽车电器系统有限公司 filed Critical 芜湖杰诺瑞汽车电器系统有限公司
Priority to CN201410658515.0A priority Critical patent/CN104297687A/en
Publication of CN104297687A publication Critical patent/CN104297687A/en

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Abstract

The invention discloses a failure monitoring and alarm system for a three-phase asynchronous motor and relates to a motor monitoring technology. The failure monitoring and alarm system comprises a sensor module, a signal processing unit, a micro-processing controller, an operation display module, an alarm device, a communication unit and an execution protecting module, wherein the input end of the signal processing unit is connected with the sensor module, the output end of the signal processing unit is connected with the micro-processing controller, and the alarm device, the operation display module and the communication unit are respectively connected with a micro-processor unit. The running parameter of the three-phase asynchronous motor is collected by the sensor module in real time, the work condition of the three-phase asynchronous motor is comprehensively analyzed, processed and judged by the micro-processor unit, failures can be timely discovered, an alarm is made to prompt a worker to take corresponding measures, and the three-phase asynchronous motor is protected from damage.

Description

Threephase asynchronous machine malfunction monitoring and warning system

Technical field

The present invention relates to a kind of motor monitoring technology, particularly relate to a kind of threephase asynchronous machine malfunction monitoring and alarm technique field.

Background technology

Along with the fast development of national economy, in order to meet the needs of modern industry production application, threephase asynchronous machine requires to have higher adjusting speed accuracy, larger speed adjustable range and response speed faster, threephase asynchronous machine may because superpotential, under-voltage in the application of reality, electric current is excessive, temperature is higher and the factors such as infringement that insulate, be affected and can not work normally, commercial production is affected.So be necessary to monitor threephase asynchronous machine, understand the production operation situation of motor timely, the fault of anticipation motor is also handled it timely in advance, prevents the production of the industry that makes a difference of electrical fault.

Summary of the invention

The object of the invention is to overcome for the problems referred to above; a kind of threephase asynchronous machine malfunction monitoring and warning system are provided; the working condition of monitoring threephase asynchronous machine; motor information according to collection in worksite grasps the operating mode of motor in real time; take corresponding safeguard measure timely for abnormal, ensure the normal operation of motor.

For achieving the above object, the present invention is achieved through the following technical solutions.

A kind of threephase asynchronous machine malfunction monitoring and warning system, is characterized in that: comprise sensor assembly, signal processing unit, microprocessor controller, Operation display module, warning device, communication unit, execution protection module and threephase asynchronous machine; The sensor input connection module of described signal processing unit; output terminal connects microprocessor controller; described warning device, Operation display module are connected with microprocessor controller respectively with communication unit; described execution protection module input end connects communication module, and output terminal connects threephase asynchronous machine.

Described sensor assembly comprises voltage sensor, current sensor, temperature sensor, speed pickup (tech-generator); The three-phase voltage of voltage sensor senses motor, current sensor detects the three-phase current of motor, and temperature sensor detects the temperature of motor, and speed pickup detects the rotating speed of motor.

Described sensor assembly also comprises megohmmeter, described megohmmeter for measure threephase asynchronous machine phase and ground between insulation, alternate insulation.

Described signal processing unit comprises filtering circuit, amplifying circuit and change-over circuit, and filtering circuit carries out filtering and noise reduction to the information of sensor assembly collection, amplifies through amplifying circuit, by change-over circuit, this information is converted to digital signal.

Described microprocessor controller processor chips are arbitrary a kind of in DSP or ARM.

Described warning device is audible-visual annunciator, and this alarm can be sounded and light is reported to the police.

The invention has the beneficial effects as follows: the invention provides a kind of threephase asynchronous machine malfunction monitoring and warning system; by detecting the voltage of motor, electric current, temperature and insulativity; grasp the working condition of motor; find the fault of motor emerged in operation timely; and send warning with the form of acousto-optic; remind staff by arranging operation display unit; the order of this setting is sent to execution protection module by communication module; make corresponding process to the working condition of motor, protection motor is without prejudice.

Accompanying drawing explanation

Fig. 1 is system architecture diagram of the present invention.

Fig. 2 is signal processing unit structured flowchart of the present invention.

Embodiment

In order to make object of the present invention, technical scheme and creation characteristic clearly understand, below in conjunction with accompanying drawing, the present invention is described in further detail.

As shown in Figure 1 and Figure 2, a kind of threephase asynchronous machine malfunction monitoring and warning system, comprise sensor assembly, signal processing unit, microprocessor controller, Operation display module, warning device, communication unit, execution protection module and threephase asynchronous machine.The sensor input connection module of described signal processing unit; output terminal connects microprocessor controller; described warning device, Operation display module are connected with microprocessor controller respectively with communication unit; described execution protection module input end connects communication module, and output terminal connects threephase asynchronous machine.

Sensor assembly comprises voltage sensor, current sensor, temperature sensor, speed pickup.Overtension may affect the insulativity of motor, and brownout can affect the output power of motor, and it is heavier to cause that the motor feels hot, and the three-phase voltage of voltage sensor senses motor, grasps the voltage condition of motor timely; Current sensor detects the three-phase current of motor, because electric current crosses the winding that conference affects motor; It is cause due to the heating of motor that the temperature of motor raises, and temperature sensor detects the temperature of motor, and temperature raises suddenly or excessive explanation motor there occurs fault; Speed pickup adopts tech-generator to detect the rotating speed of motor, and the speed of motor speed directly affects the progress of production.

Described sensor assembly also comprises megohmmeter, described megohmmeter for measure threephase asynchronous machine phase and ground between insulation, alternate insulation, because motor production run self to the earth, and insulation between three-phase windings is most important, insulation will be once the safe operation of destroyed motor will be subject to serious impact.

Described signal processing unit comprises filtering circuit, amplifying circuit and change-over circuit, filtering circuit carries out filtering and noise reduction to the information of sensor assembly collection, amplify through amplifying circuit, the information of collection is that this information is converted to digital signal by change-over circuit by simulating signal, described microprocessor controller processor chips are arbitrary a kind of in DSP or ARM, microprocessor controller receives the digital signal of conversion, this digital signal is analyzed, judge and will be presented in Operation display module during fructufy, if range of parameter values warning device that threephase asynchronous machine normally runs sends warning to have parameter to exceed, described warning device is audible-visual annunciator, this alarm can be sounded and light is reported to the police, inform staff on duty timely, safeguard measure is taked to motor, by setting operation display module, the fault of reporting to the police is processed accordingly, the information of this setting judges to export by microprocessor controller analysis, execution protection module is sent to by communication module, execution protection module receives this command information and will make action to threephase asynchronous machine immediately, according to the menace level of fault, take corresponding safeguard measure, protection motor is without prejudice, commercial production can normally be carried out unaffected.

Claims (6)

1. threephase asynchronous machine malfunction monitoring and a warning system, is characterized in that: comprise sensor assembly, signal processing unit, microprocessor controller, Operation display module, warning device, communication unit, execution protection module and threephase asynchronous machine; The sensor input connection module of described signal processing unit; output terminal connects microprocessor controller; described warning device, Operation display module are connected with microprocessor controller respectively with communication unit; described execution protection module input end connects communication module, and output terminal connects threephase asynchronous machine.
2. threephase asynchronous machine malfunction monitoring according to claim 1 and warning system, is characterized in that: described sensor assembly comprises voltage sensor, current sensor, temperature sensor, speed pickup; The three-phase voltage of voltage sensor senses motor, current sensor detects the three-phase current of motor, and temperature sensor detects the temperature of motor, and speed pickup detects the rotating speed of motor.
3. threephase asynchronous machine malfunction monitoring according to claim 2 and warning system, is characterized in that: described sensor assembly also comprises megohmmeter, described megohmmeter for measure threephase asynchronous machine phase and ground between insulation, alternate insulation.
4. threephase asynchronous machine malfunction monitoring according to claim 1 and warning system, it is characterized in that: described signal processing unit comprises filtering circuit, amplifying circuit and change-over circuit, filtering circuit carries out filtering and noise reduction to the information of sensor assembly collection, amplify through amplifying circuit, by change-over circuit, this information is converted to digital signal.
5. threephase asynchronous machine malfunction monitoring according to claim 1 and warning system, is characterized in that: described microprocessor controller processor chips are arbitrary a kind of in DSP or ARM.
6. threephase asynchronous machine malfunction monitoring according to claim 1 and warning system, is characterized in that: described warning device is audible-visual annunciator, and this alarm can be sounded and light is reported to the police.
CN201410658515.0A 2014-11-19 2014-11-19 Failure monitoring and alarm system for three-phase asynchronous motor CN104297687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410658515.0A CN104297687A (en) 2014-11-19 2014-11-19 Failure monitoring and alarm system for three-phase asynchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410658515.0A CN104297687A (en) 2014-11-19 2014-11-19 Failure monitoring and alarm system for three-phase asynchronous motor

Publications (1)

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CN104297687A true CN104297687A (en) 2015-01-21

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104931878A (en) * 2015-05-06 2015-09-23 成都诚邦动力测试仪器有限公司 Motor temperature control test system based on peak clipping pulse wave modulation control
CN105527569A (en) * 2015-12-07 2016-04-27 苏州科技学院 Embedded three-phase asynchronous motor fault diagnosis device with combination of wireless sensing network
CN106685147A (en) * 2017-03-23 2017-05-17 南通森玛特电机有限公司 Variable-frequency speed-adjusting three-phase asynchronous motor
CN107576908A (en) * 2017-08-31 2018-01-12 南京越博电驱动系统有限公司 A kind of pure electric automobile high pressure annex electromechanical testing platform
CN108680860A (en) * 2018-07-23 2018-10-19 五邑大学 A kind of EPS motor fault detection method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202997515U (en) * 2012-11-15 2013-06-12 长安大学 Brushless DC motor fault detection controller
CN103513180A (en) * 2013-06-24 2014-01-15 大连民族学院 Motor operation state monitoring and fault detecting system
CN204166106U (en) * 2014-11-19 2015-02-18 芜湖杰诺瑞汽车电器系统有限公司 Threephase asynchronous machine malfunction monitoring and warning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202997515U (en) * 2012-11-15 2013-06-12 长安大学 Brushless DC motor fault detection controller
CN103513180A (en) * 2013-06-24 2014-01-15 大连民族学院 Motor operation state monitoring and fault detecting system
CN204166106U (en) * 2014-11-19 2015-02-18 芜湖杰诺瑞汽车电器系统有限公司 Threephase asynchronous machine malfunction monitoring and warning system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104931878A (en) * 2015-05-06 2015-09-23 成都诚邦动力测试仪器有限公司 Motor temperature control test system based on peak clipping pulse wave modulation control
CN105527569A (en) * 2015-12-07 2016-04-27 苏州科技学院 Embedded three-phase asynchronous motor fault diagnosis device with combination of wireless sensing network
CN106685147A (en) * 2017-03-23 2017-05-17 南通森玛特电机有限公司 Variable-frequency speed-adjusting three-phase asynchronous motor
WO2018170996A1 (en) * 2017-03-23 2018-09-27 南通森玛特电机有限公司 Variable-frequency speed-adjustable three-phase asynchronous motor
CN106685147B (en) * 2017-03-23 2019-03-29 南通森玛特电机有限公司 A kind of frequency control threephase asynchronous machine
CN107576908A (en) * 2017-08-31 2018-01-12 南京越博电驱动系统有限公司 A kind of pure electric automobile high pressure annex electromechanical testing platform
CN108680860A (en) * 2018-07-23 2018-10-19 五邑大学 A kind of EPS motor fault detection method

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