CN201910758U - Speed control device of overhead line type mining electric locomotive - Google Patents
Speed control device of overhead line type mining electric locomotive Download PDFInfo
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- CN201910758U CN201910758U CN2010206256678U CN201020625667U CN201910758U CN 201910758 U CN201910758 U CN 201910758U CN 2010206256678 U CN2010206256678 U CN 2010206256678U CN 201020625667 U CN201020625667 U CN 201020625667U CN 201910758 U CN201910758 U CN 201910758U
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 35
- 238000005065 mining Methods 0.000 title claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000013461 design Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 101100408453 Arabidopsis thaliana PLC5 gene Proteins 0.000 description 4
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- 238000012423 maintenance Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
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Abstract
The utility model discloses a speed control device of an overhead line type mining electric locomotive, which comprises an overhead line type direct-current power supply, a reversing circuit for controlling reversing of the motor of the mining electric locomotive, an IGBT (insulated gate bipolar translator) module for controlling the current of the motor, a Hall current sensor for detecting the current of the motor and a PLC (programmable logic controller) connected with the Hall current sensor for controlling the IGBT module. By adopting the IGBT as a main power component, the defects of the traditional speed control based on resistors and thyristors are overcome, and the utility model has the advantages that the circuit is advanced, the control is easy, the starting torque is large, smooth speed control is achieved, the modular design is adopted, the device has a novel structure, high reliability and a low cost and is easy to operate and maintain, and energy can be saved; the conduction ratio of a chopper circuit can be controlled effectively, and the operating speed and working efficiency of the locomotive can be increased effectively; and the conduction of the power supply of the drive circuit and the speed of the locomotive are controlled through the Hall current sensor, and the safety and stability of the locomotive are enhanced.
Description
Technical field
The utility model relates to the technical field of electric locomotive speed regulating device, specifically is a kind of stringing formula mining electric locomotive speed regulating device.
Background technology
What for a long time, stringing formula industrial-mineral electric locomotive adopted is resistance step speed regulation control technology.The rheostatic speed regulation starting-impact is big, power consumption is big, adopts mechanical braking, and delay of response, operation is clumsy, mechanical wear is big, and maintenance is frequent, maintenance cost is high, and the time of delaying work that stops production is long.
The eighties, the SCR control technology is introduced locomotive throttle control, back development IGBT speed adjusting technique so far, the rheostatic speed regulation that compares, technical had a very big progress, starts steady relatively, stepless speed regulation, tractive effort has raising, and failure rate is low, but still exist poor reliability, maintenance difficulty big, defectives such as mechanical braking, delay of response, operation clumsiness, and, employing be three split type, form by driver controller, chopping regulating speed control cabinet, reactor box, install and use very inconvenient.
The utility model content
The technical problems to be solved in the utility model provides a kind of good reliability, simple to operate, better safety performance stringing formula mining electric locomotive speed regulating device.
For solving the problems of the technologies described above, the utility model provides a kind of stringing formula mining electric locomotive speed regulating device, comprising: the PLC5 that is used to control described IGBT module 3 that stringing formula DC power supply 1, being used to of linking to each other with stringing formula DC power supply 1 are controlled the commutating circuit 2 of the motor commutation of mining electric locomotive, the IGBT module 3 that is used to control current of electric that links to each other with the current output terminal of commutating circuit 2, the Hall current sensor In that is used to detect described current of electric size, link to each other with this Hall current sensor In.
Further, be provided with the full speed control switch SK2 that is used to control described motor full-speed operation between the current input terminal of described IGBT module 3 and the current output terminal.
Further, described PLC5 is connected with the alignment circuit 7 that is used to control described motor speed.
The technique effect that the utlity model has:
(1) to have adopted the governing system of closed-loop control and isolated gate pole power transistor IGBT be main power component to the utility model, use intelligent logical circuit control-driven system, fundamentally solved the defective of traditional rheostatic speed regulation and thyristor speed control, has the circuit advanced person, control is simple, staring torque is big, speed governing is steady, modularized design, novel structure, simple to operate, the reliability height, energy-conservation, keep in repair easy, characteristics such as expense is low, advantages such as no arc switching, be at the state-of-the-art speed regulating device of domestic stringing formula industrial-mineral electric locomotive, can with the supporting use of new locomotive, also can reequip old locomotive.
(2) in the utility model, described IGBT module has solved the defective of rheostatic speed regulation and thyristor speed control, and the IGBT chopping regulating speed is compared with rheostatic speed regulation and had better energy-saving effect.The IGBT module adopts the IGBT power component of extremely low conduction voltage drop, cooperates concrete optimization circuit again, and comparable traditional rheostatic speed regulation is energy-conservation more than 30%.
(3) in the utility model, adopt PLC to detect current of electric through Hall current sensor In, and the IGBT module is controlled by pwm signal, can the conduction ratio of each IGBT power component be control effectively, conduction ratio can be controlled at 5% to 95%, effectively improve locomotive running speed and operating efficiency thereof.In addition, this kind structure adopts the connection and the locomotive rotating speed of Hall current sensor control Driver Circuit power supply, has improved the fail safe and stability of locomotive.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of guidance panel of the present utility model;
Fig. 2 is the circuit block diagram of stringing formula mining electric locomotive speed regulating device of the present utility model;
Fig. 3 is the electrical schematic diagram of stringing formula mining electric locomotive speed regulating device shown in Figure 2.
Embodiment
1-3 is elaborated to the utility model below in conjunction with accompanying drawing:
See Fig. 2-3, the stringing formula mining electric locomotive speed regulating device of present embodiment comprise: the PLC5 that is used to control described IGBT module 3 that stringing formula DC power supply 1, being used to of linking to each other with stringing formula DC power supply 1 are controlled the commutating circuit 2 of the motor commutation of mining electric locomotive, the IGBT module 3 that is used to control current of electric that links to each other with the current output terminal of commutating circuit 2, the Hall current sensor In that is used to detect described current of electric size, link to each other with this Hall current sensor In.
Be provided with the full speed control switch SK2 that is used to control described motor full-speed operation between the current input terminal of described IGBT module 3 and the current output terminal.
Described PLC5 is connected with the alignment circuit 7 that is used to control described motor speed.
Stringing formula DC power supply 1 links to each other with the current input terminal of commutating circuit 2 by control switch SK1.
The stringing formula mining electric locomotive speed regulating device of present embodiment also comprise the lamp-controlling circuit that links to each other with stringing formula DC power supply 1; Described lamp-controlling circuit comprises two indicator light groups, rotation department control K switch and horn circuit; Described rotation department control K switch comprises headlight, back light and 0 three gears; The headlight retaining of described rotation department control K switch is electrically connected the first indicator light group, and the back light gear of described rotation department control K switch is electrically connected the second indicator light group, and the 0 gear sky that K switch is controlled in described rotation department connects.
Stringing formula DC power supply 1 comprises: the automatic switch QF that links to each other with dc electric, storage capacitor C1 and filter capacitor C2.
In the present embodiment, described motor comprises a pair of M1 and M2, and commutating circuit 2 comprises contactor k1, k2, k3, k4, k5, k6, k7, k8 and the brake resistance RZ of the forward and backward that is used to control motor M 1, M2; Described brake resistance RZ is controlled by switch S K3.
See Fig. 1, the stringing formula mining electric locomotive speed regulating device of present embodiment also comprise department's control device 6; Described department control device 6 comprises: speed adjusting lever 61, reversing handle 62, luminous lamp switch knob 64; 62 of described speed adjusting lever 61 and reversing handles have mechanical interlock 63.Described alignment circuit 7 is realized speed regulating control by described speed adjusting lever 61.Commutating circuit 2 is realized commutation control by reversing handle 62.
The operation principle of the stringing formula mining electric locomotive speed regulating device of present embodiment is as follows:
(1), the automatic switch QF that closes, main power source is connected, voltage-stabilized power supply circuit is started working simultaneously, governing box work loop gets.
(2), operate reversing handle " forward " or " backward ", motor circuit connection; Reversing handle has three shelves to switch the position, connects K1, K3, K5, K7 when " 0 " position is off-state, " forward "; " backward " connect K2, K4, K6, K8 the time; Change the motor direction of rotation, realize that locomotive advances, retreats and stops.
(3), operating grip control SK1, SK2, the control main circuit power is connected, the total head operation, controls Hall current sensor In simultaneously, the connection of control Driver Circuit power supply and the speed governing of locomotive.This governing system adopts IGBT high voltage switch device, and control mode is fixed frequency modulated PWM (a PWM mode); IGBT is the full control power switch component that is combined with high power transistor by field effect transistor, its switching frequency height; When grid applies+break-over of device during 15V voltage, pressure drop is about 2V during conducting, turn-offs when grid applies 0 device during to-15V voltage; Because IGBT operating switch state, when conducting is turn-offed loss very little, so energy-saving effect is remarkable under the speed governing state, can guarantee that the electric energy below 99% is used for motor; IGBT is connected in " series excitation type " traction motor circuit, and when an IGBT circuit (VT1) among the IGBT or the 2nd IGBT circuit (VT2) conducting, current of electric is linear to rise; When IGBT turn-offed, electric current is linear to descend; Because switching frequency height (2KHz), the electric current equivalence of actual locomotive is a direct current, conducting by IGBT, turn-off time ratio (are promptly regulated than α=Ton/T), can change the average voltage at motor two ends, thereby are changed rotating speed of motor, realize the locomotive throttle purpose; The various defencive functions of speed regulator such as soft start, under-voltage, overvoltage, constant current, short-circuit protection etc. also can be realized by the conducting of regulating IGBT, the ratio of turn-off time.
(4), during electric braking, operating grip is pulled " 0 " position down, SK1, SK2 disconnect, the operating motor of the closed ， Inertia of SK3 transfers generator operation to, power consumption reaches the purpose of fast braking in brake resistance.
Obviously, the foregoing description only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.
Claims (3)
1. stringing formula mining electric locomotive speed regulating device comprise: the PLC (5) that is used to control described IGBT module (3) that stringing formula DC power supply (1), being used to of linking to each other with stringing formula DC power supply (1) are controlled the commutating circuit (2) of the motor commutation of mining electric locomotive, the IGBT module (3) that is used to control current of electric that links to each other with the current output terminal of commutating circuit (2), the Hall current sensor (In) that is used to detect described current of electric size, link to each other with this Hall current sensor (In).
2. stringing formula mining electric locomotive speed regulating device according to claim 1 is characterized in that: be provided with the full speed control switch (SK2) that is used to control described motor full-speed operation between the current input terminal of described IGBT module (3) and the current output terminal.
3. stringing formula mining electric locomotive speed regulating device according to claim 1 is characterized in that: described PLC (5) is connected with the alignment circuit (7) that is used to control described motor speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206256678U CN201910758U (en) | 2010-11-25 | 2010-11-25 | Speed control device of overhead line type mining electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206256678U CN201910758U (en) | 2010-11-25 | 2010-11-25 | Speed control device of overhead line type mining electric locomotive |
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| Publication Number | Publication Date |
|---|---|
| CN201910758U true CN201910758U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206256678U Expired - Fee Related CN201910758U (en) | 2010-11-25 | 2010-11-25 | Speed control device of overhead line type mining electric locomotive |
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| CN (1) | CN201910758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105751918A (en) * | 2016-02-29 | 2016-07-13 | 河北钢铁集团矿业有限公司 | Closed loop speed regulation device and method for direct current chopped wave speed regulating electric locomotive |
| CN107745718A (en) * | 2017-10-17 | 2018-03-02 | 西安文理学院 | A kind of Electronic locomotive coding type driver controller |
-
2010
- 2010-11-25 CN CN2010206256678U patent/CN201910758U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105751918A (en) * | 2016-02-29 | 2016-07-13 | 河北钢铁集团矿业有限公司 | Closed loop speed regulation device and method for direct current chopped wave speed regulating electric locomotive |
| CN107745718A (en) * | 2017-10-17 | 2018-03-02 | 西安文理学院 | A kind of Electronic locomotive coding type driver controller |
| CN107745718B (en) * | 2017-10-17 | 2019-10-18 | 西安文理学院 | A locomotive electronically coded driver controller |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20141125 |
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| EXPY | Termination of patent right or utility model |