CN110071482A - A kind of engineering in Intelligent electrical machinery protection system - Google Patents
A kind of engineering in Intelligent electrical machinery protection system Download PDFInfo
- Publication number
- CN110071482A CN110071482A CN201910446936.XA CN201910446936A CN110071482A CN 110071482 A CN110071482 A CN 110071482A CN 201910446936 A CN201910446936 A CN 201910446936A CN 110071482 A CN110071482 A CN 110071482A
- Authority
- CN
- China
- Prior art keywords
- module
- motor
- protection system
- engineering
- electrical machinery
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
Landscapes
- Control Of Electric Motors In General (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
This application discloses a kind of engineering in Intelligent electrical machinery protection system, including controller, A/D module, switching input module, open into isolation module, isolation module, communication module and liquid crystal display；Controller respectively with A/D module, switching input module, open and connect into isolation module, isolation module, communication module and liquid crystal display; the output voltage or electric current for needing protected motor are connect with A/D module, and isolation module is connect with the current input terminal of motor to be protected is needed.The system of the application can comprehensively protect control to motor; when there is overcurrent, undercurrent, disconnected phase, stall, short circuit, over-voltage, under-voltage, electric leakage, three-phase imbalance, overheat, ground connection, bearing wear, rotor bias in motor, winding aging alarmed or protected control; have many advantages, such as that energy saving, sensitive, accuracy is high, impact resisting vibrating, it is reproducible, defencive function is complete, small power consumption.
Description
Technical field
The present invention relates to a kind of running gears, more particularly to a kind of engineering in Intelligent electrical machinery protection system.
Background technique
Motor occupies very important status as the important component in dragging system in national economy, it
It is the important guarantee that industry, agriculture and national defense construction and people's lives are normally carried out using all trades and professions have almost been penetrated into, because
And ensure that the normal operation of motor just seems particularly significant, and cause motor to burn in use and even cause considerable safety thing
Therefore event it is commonplace, according to incompletely statistics the whole nation be often only because motor burn consumed by electricity just reach tens million of degree,
The quantity that motor is burnt is up to 200,000 times or more, about 0.4 hundred million kilowatts of capacity, because the electromagnetic wire about 50,000,000 for repairing consumed is public
Jin, price for repairing is up to 2,000,000,000 yuan, and because the loss caused by stop work and production is even more a tremendous amount that can not be estimated.Therefore it carries out
The protection of motor has obvious energy conservation, improves production efficiency and economic benefit and guarantees the significance of safety in production.
Due to the continuous development of insulation technology, not only requires to increase in the design of motor to contribute, but also require to reduce volume, make
The thermal capacity of New-type electric machine is smaller and smaller, and capability of overload is more and more weaker；Again due to the raising of production automation degree, it is desirable that electricity
Machine often operates in the various ways such as frequent starting, braking, positive and negative rotation and varying duty, proposes more to electric motor protective device
High requirement.In addition, the application surface of motor is wider, the extremely severe occasion of environment is often worked in, such as humidity, high temperature, more dirt, corruption
The occasions such as erosion.It is all these, present motor is caused than being easier damage, especially overload in the past, short circuit, phase shortage, sweeping thorax
Etc. failures frequency of occurrences highest.
Traditional electric motor protective device is based on electrothermal relay, but electrothermal relay sensitivity is low, error is big, stability is poor,
It is unreliable to protect.The fact be also in this way, although much equipment are mounted with electrothermal relay, what motor damage and influencing normally produced
Phenomenon is still generally existing.
Summary of the invention
The object of the present invention is to provide a kind of engineering in Intelligent electrical machinery protection system, it is able to achieve to overload, starting overcurrent (stall), electricity
Flow the multi-protective functions such as uneven (phase shortage), starting time-out, high sensitivity, good reliability.
The present invention is implemented as follows:
A kind of engineering in Intelligent electrical machinery protection system, including controller, A/D module, switching input module, open into isolation module, isolation
Module, communication module and liquid crystal display；Controller respectively with A/D module, switching input module, open into isolation module, every
It is connected from module, communication module with liquid crystal display, the output voltage of protected motor or electric current is needed to connect with A/D module
It connects, isolation module is connect with the current input terminal of motor to be protected is needed.
Preferably, the A/D conversion module is the output voltage that will need protected motor or electric current by mould
Analog quantity is converted into digital signal；Before carrying out A/D conversion, first have to the voltage or current that will be acquired through voltage transformer or
Person's current transformer is depressured to 5V, then voltage or current signal is filtered and is sampled holding processing.
Preferably, the controller is any one of PLC controller, single-chip microcontroller and integrated circuit.
Preferably, the controller uses CY8C27243-24SXI chip；Its performance is as follows: core processor:
M8C；Kernel size: 8-Bit；Speed: 24MHz；Connectivity: I2C, SPI, UART/USART；Peripheral hardware: POR, PWM, WDT；I/O
Number: 16；Program memory capacity: 16KB(16K × 8)；Program storage type: flash memory ram；Capacity: 256 × 8；Voltage-power supply
(Vcc/Vdd): 3V~5.25V；Oscillator type: Internal；Internal operating temperature: -40 DEG C~85 DEG C.
Preferably, the switching input module be controller and scene using switching value as the inspection of output form
Element is surveyed, using any one of operation control button, travel switch, close switch or pressure switch.
Preferably, described open is isolated into isolation module using relay, avoids forceful electric power or other capable and experienced
It disturbs and goes here and there into circuit.
Preferably, the communication module is KSZ8041TL chip.
The control method of engineering in Intelligent electrical machinery protection system is as follows:
Three-phase current voltage value is acquired first, is then compared with the definite value of controller storage, is triggered and protected according to comparison result
Shield movement, to realize the integrated protection of motor；Engineering in Intelligent electrical machinery protection system is equipped with liquid crystal display and is used for controller parameter
It is inputted and is changed in real time, the operating condition and parameter setting situation of motor are then shown by liquid crystal display；Meanwhile intelligence
Energy protection system for motor can pass through communication module and connect optical fiber ring network and host computer progress information exchange.
The advantages of the application, is as follows:
1, the output voltage or electric current of protected motor are needed by detection, then the definite value with controller storage is compared
Compared with according to the movement of comparison result trigger protection, disconnection needs the electric current on protected motor, has reached and has carried out short circuit to motor
The purpose of error protection, thus realize guarantee heavy-duty motor load occur short trouble when will not overstepping technology effect
Fruit, so solve the prior art using electrothermal relay come to motor device carry out circuit protection be merely able to play overload protection and
The technical issues of short trouble can not being protected；
2, control is comprehensively protected to motor, motor occur overcurrent, undercurrent, disconnected phase, stall, short circuit, over-voltage, under-voltage, electric leakage,
When three-phase imbalance, overheat, ground connection, bearing wear, rotor bias, winding aging alarmed or protected control；
3, have that energy saving, sensitive, accuracy is high, impact resisting vibrating, it is reproducible, defencive function is complete, small power consumption etc. is excellent
Point；
4, the parameters such as electric current, the voltage of motor can be directly displayed, failure mode is very clear after protection act, greatly facilitates
The judgement of failure, the troubleshooting and shortening for being conducive to production scene are resumed production the time；
5, motor can be made to give full play to overload capacity and from damage, and can also improve electric drive system can
By the continuity of property and production.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application.
Specific embodiment
The application engineering in Intelligent electrical machinery protection system is further described below in conjunction with attached drawing.
As shown in Figure 1, a kind of engineering in Intelligent electrical machinery protection system, including controller, A/D module, switching input module, open into
Isolation module, isolation module, communication module and liquid crystal display；Controller respectively with A/D module, switching input module, open
Enter isolation module, isolation module, communication module to connect with liquid crystal display, needs the output voltage or electric current of protected motor
It is connect with A/D module, isolation module is connect with the current input terminal of motor to be protected is needed.
A/D conversion module is that the output voltage or electric current that will need protected motor by analog quantity are converted into digital letter
Number；Before carrying out A/D conversion, first has to the voltage or current that will be acquired and be depressured through voltage transformer or current transformer
To 5V, then voltage or current signal is filtered and is sampled holding processing.
Controller is any one of PLC controller, single-chip microcontroller and integrated circuit.
Controller uses CY8C27243-24SXI chip；Its performance is as follows: core processor: M8C；Kernel size: 8-
Bit；Speed: 24MHz；Connectivity: I2C, SPI, UART/USART；Peripheral hardware: POR, PWM, WDT；I/O number: 16；Program storage is held
Amount: 16KB(16K × 8)；Program storage type: flash memory ram；Capacity: 256 × 8；Voltage-power supply (Vcc/Vdd): 3V~
5.25V；Oscillator type: Internal；Internal operating temperature: -40 DEG C~85 DEG C.
Switching input module be controller and scene using switching value as the detecting element of output form, using operation control
Any one of button, travel switch, close switch or pressure switch processed.
It opens and is isolated into isolation module using relay, avoid forceful electric power or other strong jamming strings into circuit.
Communication module is KSZ8041TL chip.
The control method of engineering in Intelligent electrical machinery protection system is as follows:
Three-phase current voltage value is acquired first, is then compared with the definite value of controller storage, is triggered and protected according to comparison result
Shield movement, to realize the integrated protection of motor；Engineering in Intelligent electrical machinery protection system is equipped with liquid crystal display and is used for controller parameter
It is inputted and is changed in real time, the operating condition and parameter setting situation of motor are then shown by liquid crystal display；Meanwhile intelligence
Energy protection system for motor can pass through communication module and connect optical fiber ring network and host computer progress information exchange.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (8)
1. a kind of engineering in Intelligent electrical machinery protection system, which is characterized in that including controller, A/D module, switching input module, open into
Isolation module, isolation module, communication module and liquid crystal display；Controller respectively with A/D module, switching input module, open
Enter isolation module, isolation module, communication module to connect with liquid crystal display, needs the output voltage or electric current of protected motor
It is connect with A/D module, isolation module is connect with the current input terminal of motor to be protected is needed.
2. engineering in Intelligent electrical machinery protection system according to claim 1, which is characterized in that the A/D conversion module is will to need
The output voltage or electric current of protected motor are converted into digital signal by analog quantity；Carry out A/D conversion before, first have to by
The voltage or current of acquisition is depressured to 5V through voltage transformer or current transformer, then to voltage or current signal
It is filtered and samples holding processing.
3. engineering in Intelligent electrical machinery protection system according to claim 1, which is characterized in that the controller is PLC controller, list
Any one of piece machine and integrated circuit.
4. engineering in Intelligent electrical machinery protection system according to claim 1, which is characterized in that the controller uses CY8C27243-
24SXI chip；Its performance is as follows: core processor: M8C；Kernel size: 8-Bit；Speed: 24MHz；Connectivity: I2C, SPI,
UART/USART；Peripheral hardware: POR, PWM, WDT；I/O number: 16；Program memory capacity: 16KB(16K × 8)；Program storage class
Type: flash memory ram；Capacity: 256 × 8；Voltage-power supply (Vcc/Vdd): 3V~5.25V；Oscillator type: Internal；It is internal
Operating temperature: -40 DEG C~85 DEG C.
5. engineering in Intelligent electrical machinery protection system according to claim 1, which is characterized in that the switching input module is control
Device, using switching value as the detecting element of output form, using operation control button, travel switch, close switch or is pressed with scene
Any one of power relay.
6. engineering in Intelligent electrical machinery protection system according to claim 1, which is characterized in that described to open into isolation module using relay
Device is isolated, and avoids forceful electric power or other strong jamming strings into circuit.
7. engineering in Intelligent electrical machinery protection system according to claim 1, which is characterized in that the communication module is KSZ8041TL
Chip.
8. engineering in Intelligent electrical machinery protection system according to claim 1, which is characterized in that the controlling party of engineering in Intelligent electrical machinery protection system
Method is as follows:
Three-phase current voltage value is acquired first, is then compared with the definite value of controller storage, is triggered and protected according to comparison result
Shield movement, to realize the integrated protection of motor；Engineering in Intelligent electrical machinery protection system is equipped with liquid crystal display and is used for controller parameter
It is inputted and is changed in real time, the operating condition and parameter setting situation of motor are then shown by liquid crystal display；Meanwhile intelligence
Energy protection system for motor can pass through communication module and connect optical fiber ring network and host computer progress information exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446936.XA CN110071482A (en) | 2019-05-27 | 2019-05-27 | A kind of engineering in Intelligent electrical machinery protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446936.XA CN110071482A (en) | 2019-05-27 | 2019-05-27 | A kind of engineering in Intelligent electrical machinery protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110071482A true CN110071482A (en) | 2019-07-30 |
Family
ID=67371658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910446936.XA Pending CN110071482A (en) | 2019-05-27 | 2019-05-27 | A kind of engineering in Intelligent electrical machinery protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110071482A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676665A (en) * | 2019-10-18 | 2020-01-10 | 韦娜诗 | Wire pressing machine |
| CN110703096A (en) * | 2019-10-29 | 2020-01-17 | 江苏瑞奇海力科技有限公司 | Motor working state detection method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201789274U (en) * | 2010-09-16 | 2011-04-06 | 苍南盛泰电子科技有限公司 | Intelligent monitor protective device of motor |
| CN205265249U (en) * | 2015-12-22 | 2016-05-25 | 许继集团有限公司 | A tractor serves several purposes middle and low voltage overload protection device |
| CN107508259A (en) * | 2017-08-29 | 2017-12-22 | 安徽三和电力技术有限公司 | Motor intelligent monitoring system |
-
2019
- 2019-05-27 CN CN201910446936.XA patent/CN110071482A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201789274U (en) * | 2010-09-16 | 2011-04-06 | 苍南盛泰电子科技有限公司 | Intelligent monitor protective device of motor |
| CN205265249U (en) * | 2015-12-22 | 2016-05-25 | 许继集团有限公司 | A tractor serves several purposes middle and low voltage overload protection device |
| CN107508259A (en) * | 2017-08-29 | 2017-12-22 | 安徽三和电力技术有限公司 | Motor intelligent monitoring system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676665A (en) * | 2019-10-18 | 2020-01-10 | 韦娜诗 | Wire pressing machine |
| CN110703096A (en) * | 2019-10-29 | 2020-01-17 | 江苏瑞奇海力科技有限公司 | Motor working state detection method, device, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203466383U (en) | Intelligent static safe energy-saving multifunctional socket with zero power consumption | |
| CN102403694A (en) | Transformer protection method and protection device with exciting inrush current restrain and switch parameter detection | |
| CN110071482A (en) | A kind of engineering in Intelligent electrical machinery protection system | |
| CN102914725B (en) | Medium-voltage power distribution network fault monitoring device | |
| CN206490425U (en) | A kind of measurement and control of motor device | |
| CN102148529A (en) | Control device and control method thereof for intelligently supplying power to circuit breaker control unit | |
| CN101976815B (en) | Loaded multifunctional protection circuit | |
| US8643986B2 (en) | Bipolar photovoltaic array grounding apparatus and method | |
| CN103675554A (en) | Standby power source automatic switching device tester | |
| CN102402269A (en) | Intelligent fully-automatic on-off and outage protector of computer and accessory equipment of computer | |
| CN208046212U (en) | A kind of mining high current intrinsic safety electric source | |
| CN208272608U (en) | Overcurrent protection relay circuit and overcurrent protection relay | |
| CN207652017U (en) | A kind of input undervoltage power-down protection circuit | |
| CN203119587U (en) | Voltage-reducing chopper three-segment charger | |
| CN207397088U (en) | A kind of universal protection supervisory equipment | |
| CN105226615A (en) | A kind of intelligent digitalized electrical fault detecting and controlling system | |
| CN108512484A (en) | A kind of motor protection investigating method of the anti-shake Electricity Functional of band | |
| CN204696659U (en) | A kind of motor protector signal processing circuit | |
| CN201868856U (en) | Integrative protecting device of three-phase alternating current asynchronous motor | |
| CN101719655A (en) | Real-time status monitoring and overvoltage protecting control device | |
| CN205811512U (en) | A kind of power-off control system | |
| CN209570903U (en) | A kind of industrial computer power supply adaptor with backup power supply | |
| CN110265970A (en) | Equipment power supply protection circuit and control method | |
| CN2852481Y (en) | Microcomputer low-tension motor protection device | |
| CN110048516A (en) | A kind of electric current electricity getting system of wide scope high current protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190730 |
|
| RJ01 | Rejection of invention patent application after publication |