CN101717027A - Frequency conversion electrical control system of mine hoist - Google Patents
Frequency conversion electrical control system of mine hoist Download PDFInfo
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- CN101717027A CN101717027A CN200810143080A CN200810143080A CN101717027A CN 101717027 A CN101717027 A CN 101717027A CN 200810143080 A CN200810143080 A CN 200810143080A CN 200810143080 A CN200810143080 A CN 200810143080A CN 101717027 A CN101717027 A CN 101717027A
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- frequency conversion
- control system
- electrical control
- mine hoist
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Abstract
The invention relates to a frequency conversion electrical control system of a mine hoist, which comprises a power supply cabinet, a frequency conversion cabinet, a brake cabinet, an operation platform, a hydraulic station, a hoist, a mechanical contracting brake and a motor, and is characterized in that the power supply cabinet, the frequency conversion cabinet, the brake cabinet and the hydraulic station are connected to the operation platform for forming a whole system. The system has the advantages of high reliability, smooth running, simple installation and debugging, convenient maintenance and significant energy-saving effect. The actual test provides that the energy-saving effect at the low-speed section is obvious, which can be about 30% generally. The deeper a mine shaft, the longer the running time of the low-speed section is, and the more obvious the energy-saving effect is.
Description
Technical field
The present invention relates to the frequency conversion electrical control system of mine hoist application.
Background technology
At present, AC contactor and speed adjusting resistance that frequency conversion system uses former automatically controlled speed governing to use, the reliability of system is not high, the poor working environment of operating personal, noise is bigger, and indoor temperature is higher; Do not have the soft start and soft the stopping of low-frequency and low-voltage, running stability is lower, and physical shock is bigger, and " sliding down " phenomenon is more; When loaded vehicle stops can not in time, steadily " slide ditch " phenomenon appear; And energy resource consumption is big.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of dependable performance, the Remarkable Energy Saving that operates steadily is applicable to ground or the non-explosion-proof occasion in down-hole in frequency conversion electrical control system of mine hoist, to the occasion of complexity operation, the preceence of performance is especially obvious especially.
The technical solution adopted for the present invention to solve the technical problems is as follows:
Frequency conversion electrical control system of mine hoist of the present invention, comprise power cabinet, frequency conversion tank, braking cabinet, operator's station, Hydraulic Station, gig, mechanical hatching gate, motor, it is characterized in that power cabinet, frequency conversion tank, braking cabinet, Hydraulic Station are connected to operator's station, become a total system.
Wherein operator's station is the operation mesa structure, and main console desk is provided with joystick and button and controls the gig operation, and in time understands the running state of gig, the service condition of operational factor and various controlling parts by indicator lamp and industrial liquid crystal display.
Frequency conversion tank becomes the 50HZ power frequency into 0-50HZ continuously controllable frequency conversion electric current to the power supply of squirrel-cage alternating current dynamo, to satisfy the mine hoist technological requirement, finishes the adjusting of gig operational factor simultaneously.
The braking cabinet discharges the regenerative electric energy that is produced in the processes such as electric machine speed regulation by braking resistor, to produce enough braking torques, equipment such as assurance frequency converter normally move.
Hydraulic Station adopts 25MPa high pressure Series Hydraulic element and hydraulic pressure auxiliary.
System adopts space voltage vector random PWM control method (being pulse duration modulation polse width modulation, is to utilize the numeral of microprocessor to export a kind of very effective technology that analogous circuit are controlled).
System's internal PID regulating control (is proportion integration differentiation proportionintegration differentiation, the PID controller is exactly the error according to system, proportion of utilization integration, difference gauge are calculated one of Industry Control aspect major technique that controlling quantity controls).
System adopts the field bus technique of R S 485 serial communications.
Compared with prior art, the invention has the beneficial effects as follows:
1, this novel frequency conversion electrical control system of mine hoist adopts space voltage vector random PWM control (real Speedless sensor current phasor) method, quick and precisely, has improved the reliability of system.
2, this novel frequency conversion electrical control system of mine hoist internal PID regulating control is realized soft start, and soft braking function makes operation more steady, and physical shock is littler, has avoided " sliding down " phenomenon.
3, system adopts the field bus technique of RS485 serial communication, has realized the intellectuality of control.When improving system reliability, saved a large amount of control lines, have serial advantages such as Installation and Debugging are simple, easy to maintenance.
4, increase the DC injection braking function, more in time, steadily, effectively avoided " slide ditch " phenomenon when loaded vehicle is stopped.
5, startup, accelerator rush current are little, maximum starting current is no more than 1.3 times rated current in the accelerator, from the steady stepless maximum speed that rises to smoothly of low speed, no big electric current occurs gig in the process, has reduced the interference to electrical network greatly under heavy duty.
6, adopt resistance braking and regenerative braking technology, can solve the potential energy load fast, slow down or the regenerative electric power energy process problem in anxious stopping time, ensure the safe operation of frequency converter, prolonged the service life of motor simultaneously.
7, the special-purpose variable-frequency governor of mining elevator for special environment for use honeybee protection type, can solve protection against the tide, antifog problem effectively.
8, directly the high starting torque of speed control can reach the operations specification requirement, and loaded vehicle starts normal fully.
9, energy-saving effect is remarkable.Through actual measurement, obvious at the low speed segment energy-saving effect, generally can reach about 30%.Mine is dark more, and the low speed segment time of run is long more, and energy-saving effect is obvious more.
Description of drawings
Fig. 1 is a system of the present invention pie graph.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.Following embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make the variation or the change of other different structure form on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
As shown in Figure 1, frequency conversion electrical control system of mine hoist of the present invention, comprise power cabinet, frequency conversion tank, braking cabinet, operator's station, Hydraulic Station, gig, mechanical hatching gate, motor, it is characterized in that power cabinet, frequency conversion tank, braking cabinet, Hydraulic Station are connected to operator's station, become a total system.
1, confirms to handle hand lever at midway location, i.e. zero-bit.Handle hand lever not in zero-bit, safety return circuit can't be connected.The manipulation hand lever becomes an angle of 90 degrees with operating console be midway location.
2, opening power lock, energized is received and is pinned the button of handling in the middle of the hand lever behind the operating instruction, correspondingly will handle hand lever and push away forward or post-tensioning.Zero crossing can the middle button of unclamp operation hand lever.
When 3, handling the hand lever zero crossing, hydraulic efficiency pressure system can declutch by releasing pressure automatically.Handling hand lever can't declutch when zero-bit and midway location.
4, gig rises or descends according to controlling the instruction of sending.
5, near 0.5 meter of target the time, system can send alert sound prompting.This is that system reminds early warning normally, and attention is concentrated when making operating personal work.
6, after gig rises or drops to the destination, handle hand lever and must get back to position intermediate.
7, abnormal condition appear in system, corresponding indicator lamp and LCDs display alarm content, Warning light flicker and with buzzer.
Gig adapted frequency converter, the DC injection braking function is to the safe operation lifting effect of system.When loaded vehicle stopped in mine, frequency converter dropped to low speed at a high speed again smoothly, applies a direct current speed-slackening signal thereupon gig is stopped, and can remove the DC injection braking signal after mechanical braking works, and it is middle to make loaded vehicle lean on the effect of mechanical hatching gate to be parked in.During startup, earlier motor is applied a direct current speed-slackening signal, when detecting mechanical hatching gate and open, can remove the DC injection braking signal, add trigger voltage, winch rotates.Mechanical hatching gate is held state tightly always under frequency converter detects, in case mechanical hatching gate is opened, applies the DC injection braking signal to motor, guarantees that loaded vehicle can not glide, and definitely avoids " slide ditch " phenomenon at once.
Claims (8)
1. frequency conversion electrical control system of mine hoist, comprise power cabinet, frequency conversion tank, braking cabinet, operator's station, Hydraulic Station, gig, mechanical hatching gate, motor, it is characterized in that power cabinet, frequency conversion tank, braking cabinet, Hydraulic Station are connected to operator's station, become a total system.
2. as claims 1 described frequency conversion electrical control system of mine hoist, it is characterized in that operator's station is the operation mesa structure, main console desk is provided with joystick and button is controlled the gig operation, and in time understand the running state of gig, the service condition of operational factor and various controlling parts by indicator lamp and industrial liquid crystal display.
3. as claims 1 described frequency conversion electrical control system of mine hoist, it is characterized in that frequency conversion tank powers to the squirrel-cage alternating current dynamo, the 50HZ power frequency is become 0-50HZ continuously controllable frequency conversion electric current,, finish the adjusting of gig operational factor simultaneously to satisfy the mine hoist technological requirement.
4. as claims 1 described frequency conversion electrical control system of mine hoist, it is characterized in that braking cabinet the regenerative electric energy that is produced in the processes such as electric machine speed regulation is discharged by braking resistor, to produce enough braking torques, equipment such as assurance frequency converter normally move.
5. as claims 1 described frequency conversion electrical control system of mine hoist, it is characterized in that Hydraulic Station adopts 25MPa high pressure Series Hydraulic element and hydraulic pressure auxiliary.
6. as claims 1 described frequency conversion electrical control system of mine hoist, it is characterized in that adopting space voltage vector random PWM control method (being pulse duration modulation polse width modulation, is to utilize the numeral of microprocessor to export a kind of very effective technology that analogous circuit are controlled).
7. as claims 1 described frequency conversion electrical control system of mine hoist, it is characterized in that the internal PID regulating control (is proportion integration differentiation proportionintegration differentiation, the PID controller is exactly the error according to system, proportion of utilization integration, difference gauge are calculated one of Industry Control aspect major technique that controlling quantity controls).
8. as claims 1 described frequency conversion electrical control system of mine hoist, it is characterized in that adopting the field bus technique of RS485 serial communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810143080A CN101717027A (en) | 2008-10-09 | 2008-10-09 | Frequency conversion electrical control system of mine hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810143080A CN101717027A (en) | 2008-10-09 | 2008-10-09 | Frequency conversion electrical control system of mine hoist |
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| CN101717027A true CN101717027A (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810143080A Pending CN101717027A (en) | 2008-10-09 | 2008-10-09 | Frequency conversion electrical control system of mine hoist |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605629A (en) * | 2013-10-30 | 2014-02-26 | 上海交通大学 | Multi-target multi-CPU (central processing unit) high-reliability processing device for mine hoist |
| CN109665431A (en) * | 2018-12-17 | 2019-04-23 | 中国矿业大学 | A kind of underground horizontal drive arrangement formula ultra-deep trailer system and application method |
| CN109665430A (en) * | 2019-01-25 | 2019-04-23 | 中煤能源研究院有限责任公司 | It is a kind of based on mine vertical cylinder, promotion, transportation system gravity force energy storage system |
-
2008
- 2008-10-09 CN CN200810143080A patent/CN101717027A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605629A (en) * | 2013-10-30 | 2014-02-26 | 上海交通大学 | Multi-target multi-CPU (central processing unit) high-reliability processing device for mine hoist |
| CN103605629B (en) * | 2013-10-30 | 2017-03-15 | 上海交通大学 | Mine hoist multiple target multi -CPU high reliability processing meanss |
| CN109665431A (en) * | 2018-12-17 | 2019-04-23 | 中国矿业大学 | A kind of underground horizontal drive arrangement formula ultra-deep trailer system and application method |
| CN109665431B (en) * | 2018-12-17 | 2020-09-22 | 中国矿业大学 | Underground horizontal driving arrangement type ultra-deep traction system and using method |
| CN109665430A (en) * | 2019-01-25 | 2019-04-23 | 中煤能源研究院有限责任公司 | It is a kind of based on mine vertical cylinder, promotion, transportation system gravity force energy storage system |
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Open date: 20100602 |