CN104071717B - Frequency converter and winch system based on PLC and control method thereof - Google Patents
Frequency converter and winch system based on PLC and control method thereof Download PDFInfo
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- CN104071717B CN104071717B CN201410296428.5A CN201410296428A CN104071717B CN 104071717 B CN104071717 B CN 104071717B CN 201410296428 A CN201410296428 A CN 201410296428A CN 104071717 B CN104071717 B CN 104071717B
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Abstract
The invention discloses a frequency converter and winch system based on PLC. The frequency converter and winch system comprises a control console, an electric reactor, a frequency converter, a motor and a winch; repeaters, hand-held devices, emergency shutdown control cabinets and acoustic-optical signalers are uniformly arranged in a coal mine roadway; the repeaters are in communication with the control console after being connected by a leaky cable. A control method of the frequency converter and winch system based on PLC comprises: a, setting a password; b, setting an identification card, c, checking the password; d, judging the identification card; e, judging whether a rectifying unit is started; f. judging whether faults exist; g, selecting a control mode; h, starting the winch and operating; i, judging whether overspeeds; j, judging whether needs to be stopped; k, controlling to stop; l, stopping by a winch driver. According to the winch system and the control method, through the dual assurance of the password and information of the identification card, non-operating person is prohibited from operation; emergency stop can be achieved by the hand-held devices and the emergency shutdown control cabinets, and meanwhile a fault point can be easy to find and analyze through the functions of audible and visual alarm and fault memory, thus bringing about great economic and social benefits.
Description
Technical field
The present invention relates to a kind of frequency converter hoister system based on PLC and control method thereof, in particular, particularly relate to the frequency converter hoister system based on PLC and control method thereof that a kind of staff can carry out wireless communication and remote parking.
Background technology
Along with people are to the requirement of energy-conserving and environment-protective in recent years, frequency converter is used widely at underground coal mine, is mainly reflected in the application of the stepless time adjustment aspects such as blowdown fan, ventilating set, lifting means, winch, travelling apron.Use frequency converter can reduce electric power line voltage fluctuation, reduce and impact electrical network, and there is adjustable acceleration function, running velocity and torque limit, controlled stopping mode, controlled electric motor starting electric current, reversible operation control and reduce the wearing and tearing of coal mine machinery equipment, effectively can reduce costs, improve system stability.Be applied in the power that the pulling force and barrel that not only can reduce this equipment steel rope in starting process in lifting means, winch and bend wheel bear, if and in decentralization process, do not adopt frequency converter, then potential energy can transform heat energy and waste, and also can shorten service life of equipment; Present frequency converter can by this part back electrical energy electrical network by potential energy, accomplishes that energy-conservation and potential energy utilizes once again.
Frequency converter is high-tension apparatus, current mine-used frequency-converter voltage is 630V, 1140V, some reaches 3300V, although colliery mechanism has carried out safety standard training to operating personal, but still have personnel can ignore safety regulation for operations due to a variety of causes, and then cause the generation of accident, personal safety is threatened.To threaten in order to the advantage that can play frequency converter does not better produce the personal safety of colliery operating personal again, a kind ofly solve the method for underground coal mine to Frequency Converter Control and various defencive function based on S7-1200PLC so invent.Meet Safety of Coal Mine Production requirement, decreased " high investment, low output " phenomenon, comply with country to energy-conserving and environment-protective requirement.
Summary of the invention
The present invention, in order to overcome the shortcoming of above-mentioned technical matters, provides a kind of frequency converter hoister system based on PLC and control method thereof.
Frequency converter hoister system based on PLC of the present invention, comprise control desk, reactor, frequency converter, motor and winch, control desk has collection, computing, communication and controlling functions, control desk is controlled by the operation of frequency converter to motor, reactor carries out overvoltage protection to frequency converter and Anti-surging impacts, the running state of control desk Real-Time Monitoring frequency converter, winch is provided with speed sensor; Track is provided with in coal mine roadway; Its special feature is: be evenly laid with repeater, hand-held set in coal mine roadway, suddenly stop control box and acousto-optic signal, repeater is communicated with control desk after being connected by leaky cable, and hand-held set realizes suddenly stopping controlling with the wireless communication of control desk and winch by repeater; Acousto-optic signal is arranged on turnout, plays street lamp and reminding effect; Suddenly stop control box is provided with and control winch scram button out of service.
Frequency converter hoister system based on PLC of the present invention and control method thereof, the stem of described track and afterbody are provided with pulleying switch, and pulleying switch is connected with control desk.
The control method of the frequency converter hoister system based on PLC of the present invention, its special feature is, is realized: a) by following steps. password is arranged, and arranges during first use to the password of control desk, password is revised as the password that operating personal is easily remembered, performs step b); B). identification card is arranged, and selects whether use identification card, if choice for use identification card, then typing has the identification card number information of the personnel of winch operation qualification, to identify the identity of hoistman; If do not used identification card, then without the need to typing identification card information; C). cryptographic check, in use procedure, first verifies the password of staff's input, and judges the correctness of password, if password is correct, then perform steps d); If password bad, then do not allow next step to operate, wait for and re-enter password; D). judge identification card information, the identification card worn by scanning work personnel, obtain identification card information, and judge whether the identification card information read is present in the identification card information of typing, if existed, then show that this staff is for hoistman, performs step e); If there is no, then identification card information is rescaned; E). whether rectification unit starts, and judges whether hoistman is opened reactor, if reactor is opened, then performs step f); If reactor is not opened, then wait for that staff opens reactor; F). judge whether to there is fault, by detecting winch along line states and frequency converter state, judging whether it exists fault, if there is fault, then skipping to step c); If there is no fault, then perform step g); G). select mode, hoistman selects the mode of frequency converter according to actual conditions, if be chosen as automatic control, then frequency converter starts winch according to constant speed, and the speed according to setting after winch starts is run; If be chosen as Non-follow control, frequency converter starts winch under the control action of regulating handle, makes winch move to actual demand speed; H). winch starts and runs, and in winch starting process, control desk controls suddenly to stop the audio alert signal that control box sends " frequency converter ready to start ", and sends red light signal by acousto-optic signal; After winch starts in the normal process run, the audio alert signal that acousto-optic signal sends " drive a vehicle, forbid pedestrian " and red alarm signal, enter driving tunnel to avoid personnel; I). hypervelocity judges, the speed that control desk is measured according to speed sensor on winch, judge whether the moving velocity of winch exceeds the speed limit, if hypervelocity, then automatically stop the operation of frequency converter, send the voice messaging causing owing to exceeding the speed limit stopping, so that staff finds out fault cause in time and keeps in repair by the anxious control box that stops simultaneously; J). judge whether to occur parking condition, in the process that Frequency Converter Control winch runs, if there is the situation of necessary parking in tunnel, staff in tunnel suddenly stops the scram button on control box or the scram button on hand-held set by pressing, send stop signal to control desk, perform step k); K). parking toll, control desk stops the operation of frequency converter after receiving the stop signal suddenly stopping control box or hand-held set transmission automatically, realizes parking; If the parking undertaken by hand-held set, then by suddenly stopping control box sends the related voice of being stopped by hand-held set, if by the anxious stop signal stopping control box and send, then send the related voice of stopping by suddenly stopping control box by the anxious control box that stops; Simultaneously acousto-optic signal red light alerting signal becomes green, and the time of stopping to frequency converter, reason carry out record; L). hoistman stops, if winch has possessed the condition of orderly shutdown, hoistman, by pressing the stop button on control desk, stops the operation of frequency converter.
The control method of the frequency converter hoister system based on PLC of the present invention, step a) in the information of typing also comprise the girth of the length of tunnel inner orbit, hypervelocity value, pulse number and belt pulley.
The invention has the beneficial effects as follows: the frequency converter hoister system based on PLC of the present invention, is provided with frequency converter, control desk and reactor, the control run winch by frequency converter, achieves the smooth starting of winch motor, reduce the impact to electrical network; By arranging repeater in tunnel, make hand-held set can realize the wireless telecommunications with control desk by repeater, not only there is voice call and get function ready, and when there is unsafe condition in tunnel, staff directly can stop the operation of winch by hand-held set, achieve timely parking in emergency circumstances, avoid the generation of Peril Incident; Suddenly stop control box by arranging in tunnel, staff not only stops control box to stop the operation of winch by anxious, and by the anxious voice signal stopping control box and send, can judge the anxious guilty culprit stopped of winch fast, so that on-call maintenance; By arranging combined aural and visual alarm in tunnel, corresponding sound and light alarm signal can be produced when winch runs and fault occurs, ensure that winch safe in operation to greatest extent.
The control method of the frequency converter hoister system based on PLC of the present invention, adopts cryptographic check and identification card information checking double verification mode, has accomplished that non-legally personnel can not cycling start, has ensured the safe operation of winch.After having there is affecting the situation that Safety for mine car runs in tunnel, staff in tunnel directly closes frequency converter by the anxious scram button stopped on control box or hand-held set, stop the operation of winch, achieve timely parking, avoid the generation of Peril Incident; Also stop control box and acousto-optic signal sends corresponding voice and light warning signal by anxious, when not only can avoid driving, personnel enter tunnel, but also are convenient to search and analysis of failure point, to the winch on-call maintenance broken down simultaneously.Frequency converter hoister system based on PLC of the present invention and control method, for society brings larger economic benefit and social benefit, beneficial effect is remarkable, is convenient to application.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the frequency converter hoister system based on PLC of the present invention;
Fig. 2 is the diagram of circuit of the control method of the frequency converter hoister system based on PLC of the present invention.
In figure: 1 control desk, 2 reactors, 3 frequency converters, 4 motors, 5 tracks, 6 winches, 7 repeater, 8 hand-held sets, 9 pulleying switches, 10 suddenly stop control box, 11 acousto-optic signals.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, give the frequency converter hoister system based on PLC of the present invention, it comprises control desk 1, reactor 2, frequency converter 3, motor 4, winch 6, repeater 7, hand-held set 9, suddenly stops control box 10 and combined aural and visual alarm 11, shown control desk 1 realizes the control to reactor 2 and frequency converter 3, and can monitor the mode of operation of frequency converter 3 in real time.Control desk 1 has acquisition of signal, data operation, communication and output control function, under the effect of reactor 2, can realize the overvoltage protection to frequency converter 3 and Anti-surging impact.Frequency converter 3 realizes the smooth starting of motor 4 under the control action of control desk 1, runs to drive winch 6.
Shown track 5 is arranged in coal mine roadway, and the mine car on winch 6 pairs of tracks 5 carries out towage.Repeater 7 is evenly arranged in tunnel, repeater 7 is connected afterwards by leaky cable and control desk 1 carries out communication, hand-held set 8 can realize the wireless communication function with control desk 1 under the effect of repeater 7, and the winch that running is stopped by hand-held set 8, simultaneously hand-held set 8 also has and gets function ready, and in tunnel, staff can contact the operating personal of control desk 1 whenever and wherever possible by hand-held set 8.Shown urgency stops control box 10 and combined aural and visual alarm 11 is also evenly arranged in tunnel, after it is connected by connection, then is connected with control desk 1; Suddenly stop control box 10 being provided with scram button, the operation of winch can be stopped, and at winch, occur the anxious stopping time, suddenly stop control box 10 under the control action of control desk, corresponding sound fault alarm message can be sent, so that in time to maintenance of equipment.Stem and the afterbody of shown track 5 are provided with pulleying switch 9, to prevent winch 6 pulleying.Winch 6 is also provided with speed sensor, so that control desk 1 detects the running velocity of winch 6 in real time.
As shown in Figure 2, give the diagram of circuit of the control method of the frequency converter hoister system based on PLC of the present invention, it is realized by following steps:
A). password is arranged, and arranges, password is revised as the password that operating personal is easily remembered during first use to the password of control desk, performs step b);
In this step, the information of typing also comprises the girth of the length of tunnel inner orbit, hypervelocity value, pulse number and belt pulley.Because the length of coal mine roadway is different, need set according to actual conditions; When winch runs, the meeting automatic train stop when speed is greater than hypervelocity value also sends alarm message; When speed sensor adopts hall speed sensor, the girth of pulse number corresponding to one week and belt pulley need be set, to calculate winch speed;
B). identification card is arranged, and selects whether use identification card, if choice for use identification card, then typing has the identification card number information of the personnel of winch operation qualification, to identify the identity of hoistman; If do not used identification card, then without the need to typing identification card information;
C). cryptographic check, in use procedure, first verifies the password of staff's input, and judges the correctness of password, if password is correct, then perform steps d); If password bad, then do not allow next step to operate, wait for and re-enter password;
D). judge identification card information, the identification card worn by scanning work personnel, obtain identification card information, and judge whether the identification card information read is present in the identification card information of typing, if existed, then show that this staff is for hoistman, performs step e); If there is no, then identification card information is rescaned;
E). whether rectification unit starts, and judges whether hoistman is opened reactor, if reactor is opened, then performs step f); If reactor is not opened, then wait for that staff opens reactor;
F). judge whether to there is fault, by detecting winch along line states and frequency converter state, judging whether it exists fault, if there is fault, then skipping to step c); If there is no fault, then perform step g);
G). select mode, hoistman selects the mode of frequency converter according to actual conditions, if be chosen as automatic control, then frequency converter starts winch according to constant speed, and the speed according to setting after winch starts is run; If be chosen as Non-follow control, frequency converter starts winch under the control action of regulating handle, makes winch move to actual demand speed;
H). winch starts and runs, and in winch starting process, control desk controls suddenly to stop the audio alert signal that control box sends " frequency converter ready to start ", and sends red light signal by acousto-optic signal; After winch starts in the normal process run, the audio alert signal that acousto-optic signal sends " drive a vehicle, forbid pedestrian " and red alarm signal, enter driving tunnel to avoid personnel;
I). hypervelocity judges, the speed that control desk is measured according to speed sensor on winch, judge whether the moving velocity of winch exceeds the speed limit, if hypervelocity, then automatically stop the operation of frequency converter, send the voice messaging causing owing to exceeding the speed limit stopping, so that staff finds out fault cause in time and keeps in repair by the anxious control box that stops simultaneously;
J). judge whether to occur parking condition, in the process that Frequency Converter Control winch runs, if there is the situation of necessary parking in tunnel, staff in tunnel suddenly stops the scram button on control box or the scram button on hand-held set by pressing, send stop signal to control desk, perform step k);
K). parking toll, control desk stops the operation of frequency converter after receiving the stop signal suddenly stopping control box or hand-held set transmission automatically, realizes parking; If the parking undertaken by hand-held set, then by suddenly stopping control box sends the related voice of being stopped by hand-held set, if by the anxious stop signal stopping control box and send, then send the related voice of stopping by suddenly stopping control box by the anxious control box that stops; Simultaneously acousto-optic signal red light alerting signal becomes green, and the time of stopping to frequency converter, reason carry out record;
L). hoistman stops, if winch has possessed the condition of orderly shutdown, hoistman, by pressing the stop button on control desk, stops the operation of frequency converter.
Based on frequency converter hoister system and the control method thereof of PLC, control frequency converter by Frequency Converter Control platform, Keep Clear-High Voltage to avoid frequency converter, ensures the personal safety of operating personal; By the double shield of password and identification card information, accomplish that NOT operation personnel can not cycling start.Also there is trouble and managing function, be convenient to search analysis of failure point, effectively shorten the maintenance of equipment time, for society brings larger economic and social benefit.
Claims (4)
1. the frequency converter hoister system based on PLC, comprise control desk (1), reactor (2), frequency converter (3), motor (4) and winch (6), control desk has collection, computing, communication and controlling functions, control desk is controlled by the operation of frequency converter to motor, reactor carries out overvoltage protection to frequency converter and Anti-surging impacts, the running state of control desk Real-Time Monitoring frequency converter, winch is provided with speed sensor; Track (5) is provided with in coal mine roadway; It is characterized in that: be evenly laid with repeater (7), hand-held set (8) in coal mine roadway, suddenly stop control box (10) and acousto-optic signal (11), repeater is communicated with control desk after being connected by leaky cable, and hand-held set realizes suddenly stopping controlling with the wireless communication of control desk and winch by repeater; Acousto-optic signal is arranged on turnout, plays street lamp and reminding effect; Urgency stops control box and control desk communicates, and suddenly stops control box is provided with to control winch scram button out of service.
2. the frequency converter hoister system based on PLC according to claim 1, is characterized in that: the stem of described track (5) and afterbody are provided with pulleying switch (9), and pulleying switch is connected with control desk.
3., based on a control method for the frequency converter hoister system based on PLC according to claim 1, it is characterized in that, realized by following steps:
A). password is arranged, and arranges, password is revised as the password that operating personal is easily remembered during first use to the password of control desk, performs step b);
B). identification card is arranged, and selects whether use identification card, if choice for use identification card, then typing has the identification card number information of the personnel of winch operation qualification, to identify the identity of hoistman; If do not used identification card, then without the need to typing identification card information;
C). cryptographic check, in use procedure, first verifies the password of staff's input, and judges the correctness of password, if password is correct, then perform steps d); If password bad, then do not allow next step to operate, wait for and re-enter password;
D). judge identification card information, the identification card worn by scanning work personnel, obtain identification card information, and judge whether the identification card information read is present in the identification card information of typing, if existed, then show that this staff is for hoistman, performs step e); If there is no, then identification card information is rescaned;
E). whether rectification unit starts, and judges whether hoistman is opened reactor, if reactor is opened, then performs step f); If reactor is not opened, then wait for that staff opens reactor;
F). judge whether to there is fault, by detecting winch along line states and frequency converter state, judging whether hoister system exists fault, if there is fault, then skipping to step c); If there is no fault, then perform step g);
G). select mode, hoistman selects the mode of frequency converter according to actual conditions, if be chosen as automatic control, then frequency converter starts winch according to constant speed, and the speed according to setting after winch starts is run; If be chosen as Non-follow control, frequency converter starts winch under the control action of regulating handle, makes winch move to actual demand speed;
H). winch starts and runs, and in winch starting process, control desk controls suddenly to stop the audio alert signal that control box sends " frequency converter ready to start ", and sends red light signal by acousto-optic signal; After winch starts in the normal process run, the audio alert signal that acousto-optic signal sends " drive a vehicle, forbid pedestrian " and red alarm signal, enter driving tunnel to avoid personnel;
I). hypervelocity judges, the speed that control desk is measured according to speed sensor on winch, judge whether the moving velocity of winch exceeds the speed limit, if hypervelocity, then automatically stop the operation of frequency converter, send the voice messaging causing owing to exceeding the speed limit stopping, so that staff finds out fault cause in time and keeps in repair by the anxious control box that stops simultaneously;
J). judge whether to occur parking condition, in the process that Frequency Converter Control winch runs, if there is the situation of necessary parking in tunnel, staff in tunnel suddenly stops the scram button on control box or the scram button on hand-held set by pressing, send stop signal to control desk, perform step k);
K). parking toll, control desk stops the operation of frequency converter after receiving the stop signal suddenly stopping control box or hand-held set transmission automatically, realizes parking; If the parking undertaken by hand-held set, then by suddenly stopping control box sends the related voice of being stopped by hand-held set, if by the anxious stop signal stopping control box and send, then send the related voice of stopping by suddenly stopping control box by the anxious control box that stops; Simultaneously acousto-optic signal red light alerting signal becomes green, and the time of stopping to frequency converter, reason carry out record;
L). hoistman stops, if winch has possessed the condition of orderly shutdown, hoistman, by pressing the stop button on control desk, stops the operation of frequency converter.
4. the control method of the frequency converter hoister system based on PLC according to claim 3, is characterized in that: step a) in the information of typing also comprise the girth of the length of tunnel inner orbit, hypervelocity value, pulse number and belt pulley.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410296428.5A CN104071717B (en) | 2014-06-27 | 2014-06-27 | Frequency converter and winch system based on PLC and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410296428.5A CN104071717B (en) | 2014-06-27 | 2014-06-27 | Frequency converter and winch system based on PLC and control method thereof |
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| CN104071717A CN104071717A (en) | 2014-10-01 |
| CN104071717B true CN104071717B (en) | 2015-06-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106081834A (en) * | 2016-08-30 | 2016-11-09 | 山西科达富升智能控制技术有限公司 | A kind of mine vertical shaft elevator unmanned control system and control method thereof |
| CN107188064A (en) * | 2017-06-06 | 2017-09-22 | 哈尔滨理工大学 | A kind of frequency converter hoister system and its control method based on PLC |
| CN107171698B (en) * | 2017-07-14 | 2022-07-26 | 淮南矿业(集团)有限责任公司 | Mine maintenance system based on leakage communication |
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| CN201934090U (en) * | 2010-12-29 | 2011-08-17 | 廊坊开发区新赛浦石油设备有限公司 | Intelligent control system of hydraulic logging winch |
| CN202245886U (en) * | 2011-08-16 | 2012-05-30 | 四川卓越科技工程有限责任公司 | Control system of winch hoist |
| CN202415057U (en) * | 2011-12-30 | 2012-09-05 | 北京中纺锐力机电有限公司 | Electric control system for winch |
| CN202704914U (en) * | 2012-08-13 | 2013-01-30 | 河南华东工控技术有限公司 | Tunnel double-winch flat trolley frequency conversion control system |
| CN203021239U (en) * | 2013-01-21 | 2013-06-26 | 山东世纪矿山机电有限公司 | Comprehensive electric control device of mining endless rope winch |
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Denomination of invention: PLC based inverter winch system and its control method Effective date of registration: 20201106 Granted publication date: 20150610 Pledgee: Shandong Zoucheng rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG SHIJI MINING ELECTROMECHANICAL Co.,Ltd. Registration number: Y2020980007651 |
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Denomination of invention: Frequency converter winch system based on PLC and its control method Effective date of registration: 20221123 Granted publication date: 20150610 Pledgee: Shandong Zoucheng rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG SHIJI MINING ELECTROMECHANICAL Co.,Ltd. Registration number: Y2022980023364 |