CN205395807U - Direct current copped wave speed governing electric locomotive's closed loop speed adjusting device - Google Patents
Direct current copped wave speed governing electric locomotive's closed loop speed adjusting device Download PDFInfo
- Publication number
- CN205395807U CN205395807U CN201620149471.3U CN201620149471U CN205395807U CN 205395807 U CN205395807 U CN 205395807U CN 201620149471 U CN201620149471 U CN 201620149471U CN 205395807 U CN205395807 U CN 205395807U
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- speed
- electric locomotive
- plc
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- direct current
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 50
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a direct current copped wave speed governing electric locomotive's closed loop speed adjusting device, including PLC and rotary encoder, PLC installs electric locomotive is last, rotary encoder install car of electric locomotive epaxial, PLC judges electric locomotive's functioning speed and direction according to the output signal who changes the encoder, with electric locomotive predetermine functioning speed and direction contrast, calculate control signal's pulse width or frequency, export the chopper control ware of interface outlet to electric locomotive by PLC's high speed pulse. If electric locomotive speed exceed predetermine the electric locomotive functioning speed certain limit after, PLC turn -offs pulse output, quantity brake speed reduction that control brake resistance dropped into. The utility model discloses the speed stability, energy losses is effectively practiced thrift to self -adaptation adjustment pulse width (or frequency), greatly improves conveying efficiency. It can realize the constant speed of high accuracy and control and overspeed protection that actually speed of going and preset speed error are no longer than 0.5kmh. The utility model discloses very easily realize and low cost.
Description
Technical field
ThisRealRelate to a kind of closed-loop drive apparatus and method, the closed-loop drive apparatus and method of especially a kind of direct current chopping regulating speed electric locomotive with novel, belong to electric locomotive and control technical field.
Technical background
The electric locomotive of direct current chopping regulating speed is widely used in the material distance rail transport of the bulk material manufacturing enterprises such as various steel mill, mine, coke-oven plant.The chopper of Novel electric locomotive controls the pulse width of IGBT conducting, and frequency is constant, is called for short " fixed frequency modulated PWM ".The chopper of old type tube electric locomotive is to control silicon controlled turn-on frequency, and trigger pulse width is constant.As it is shown in figure 1, electric locomotive is by when driving manually, driver's regulable control device handle as required improves pulsewidth or frequency, reduction pulsewidth or frequency.Pulsewidth or frequency are more high, and direct current generator output is more big, thus the speed that drive motor car travels is more fast, reduce pulsewidth or frequency when needs reduce speed, it is necessary to when quick deceleration or parking, put into resistive braking.But the speed stability of this artificial opened loop control and conevying efficiency are affected by human factors very big.
Utility model content
This utility model purpose is to provide the closed-loop drive apparatus and method of a kind of direct current chopping regulating speed electric locomotive.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:
The closed-loop drive device of a kind of direct current chopping regulating speed electric locomotive, including rotary encoder and PLC；PLC is arranged on described electric locomotive；Described rotary encoder is arranged on an axletree of described electric locomotive；Described rotary encoder by detect electric locomotive velocity information output to described PLC high-speed counter；Described PLC goes out the speed of service and the direction of described electric locomotive according to the signal detection turning encoder, pulsewidth or frequency with the default speed of service of electricity and direction contrast generate control signal, is exported the chopper controller to electric locomotive by the high-speed pulse output interface of described PLC；The pulse signal of PLC is amplified by described chopper, uses it for the output controlling electric locomotive direct current generator.
Described rotary encoder and axletree synchronous rotary, the pulse frequency of rotary encoder output and axletree rotating speed direct proportionality.
Described PLC can also use analog output module by with control the proportional voltage signal of output speed and be fed directly to drive circuit, drive circuit exports the signal voltage of the pulse to chopper adjustable duty cycle or frequency and input linearly.
The speed of service of the electric locomotive that described PLC calculates according to the output signal turning encoder, it is carried out PID arithmetic with velocity contrast set in advance, the dutycycle of regulable control signal or frequency values, by control signal output to chopper controller, when the speed of service is beyond the set point of pre-set velocity, PLC turns off the output of control signal, and cuts resistance retarding braking.
Adopting technique scheme, the beneficial effects of the utility model are:
1, this utility model speed stability, controls system change self-adaptative adjustment pulsewidth (or frequency) according to locomotive load size, track grade, effectively save electric energy loss, greatly improves conevying efficiency.
2, this utility model is after electric locomotive speed exceedes the certain limit of set-point; PLC turns off pulse output; controlling the quantity brake deceleration that braking resistor puts into, it is possible to achieve high-precision constant speed controls and overspeed protection, actual travel speed and given speed error are less than 0.5km/h.
3, locomotive original system is changed only small by this patent, reliable, and hardware puts into and software programming aspect very easily realizes and with low cost.Can conveniently realize automatization on this basis unmanned, achieve good economic benefit in actual use.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art；
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
Embodiment 1:
As in figure 2 it is shown, the closed-loop drive device of a kind of direct current chopping regulating speed electric locomotive, including rotary encoder and PLC；PLC is arranged on described electric locomotive；Described rotary encoder is arranged on an axletree of described electric locomotive；Described rotary encoder by detect electric locomotive velocity information output to described PLC high-speed counter；Described PLC goes out the speed of service and the direction of described electric locomotive according to the signal detection turning encoder, pulsewidth or frequency with the default speed of service of electricity and direction contrast generate control signal, is exported the chopper controller to electric locomotive by the high-speed pulse output interface of described PLC；The pulse signal of PLC is amplified by described chopper, uses it for the output controlling electric locomotive direct current generator.
Described rotary encoder and axletree synchronous rotary, the pulse frequency of rotary encoder output and axletree rotating speed direct proportionality.
Described PLC can also use analog output module by with control the proportional voltage signal of output speed and be fed directly to drive circuit, drive circuit exports the signal voltage of the pulse to chopper adjustable duty cycle or frequency and input linearly.
The speed of service of the electric locomotive that described PLC calculates according to the output signal turning encoder, it is carried out PID arithmetic with velocity contrast set in advance, the dutycycle of regulable control signal or frequency values, by control signal output to chopper controller, when the speed of service is beyond the set point of pre-set velocity, PLC turns off the output of control signal, and cuts resistance retarding braking.
PLC is internal PID assembly, can call this assembly, repetition test during coding, set the parameter of ratio, integration, differential, calling PWM assembly, suitable parameter is set, numerical value PID arithmetic drawn converts the frequency signal proportional to numerical value to, exports at high-speed pulse output mouth.
After the electric locomotive of direct current chopping regulating speed makes the closed-loop drive control system controlled by PLC into; speed stability and the conevying efficiency of electric locomotive greatly improve; can also saves energy loss; change self-adaptative adjustment pulsewidth (or frequency) according to locomotive load size, track grade of the control system; after speed exceedes set-point certain limit; PLC turns off pulse output; control the quantity brake deceleration that braking resistor puts into; can realizing high-precision constant speed to control and overspeed protection, actual travel speed and given speed error are less than 0.5km/h.
Claims (4)
1. the closed-loop drive device of a direct current chopping regulating speed electric locomotive, it is characterised in that: include rotary encoder and PLC；PLC is arranged on described electric locomotive；Described rotary encoder is arranged on an axletree of described electric locomotive；Described rotary encoder by detect electric locomotive velocity information output to described PLC high-speed counter；Described PLC goes out the speed of service and the direction of described electric locomotive according to the signal detection turning encoder, pulsewidth or frequency with the default speed of service of electricity and direction contrast generate control signal, is exported the chopper controller to electric locomotive by the high-speed pulse output interface of described PLC；The pulse signal of PLC is amplified by described chopper, uses it for the output controlling electric locomotive direct current generator.
2. the closed-loop drive device of direct current chopping regulating speed electric locomotive according to claim 1, it is characterised in that: described rotary encoder and axletree synchronous rotary, the pulse frequency of rotary encoder output and axletree rotating speed direct proportionality.
3. the closed-loop drive device of direct current chopping regulating speed electric locomotive according to claim 1, it is characterized in that: described PLC can also use analog output module by with control the proportional voltage signal of output speed and be fed directly to drive circuit, drive circuit exports the signal voltage of the pulse to the output adjustable duty cycle of chopper or frequency and input linearly.
4. the closed-loop drive device of direct current chopping regulating speed electric locomotive according to claim 1, it is characterized in that: the speed of service of the electric locomotive that described PLC calculates according to the output signal turning encoder, it is carried out PID arithmetic with velocity contrast set in advance, the dutycycle of regulable control signal or frequency values, by control signal output to chopper controller, when the speed of service is beyond the set point of pre-set velocity, PLC turns off the output of control signal, and cuts resistance retarding braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620149471.3U CN205395807U (en) | 2016-02-29 | 2016-02-29 | Direct current copped wave speed governing electric locomotive's closed loop speed adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620149471.3U CN205395807U (en) | 2016-02-29 | 2016-02-29 | Direct current copped wave speed governing electric locomotive's closed loop speed adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205395807U true CN205395807U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620149471.3U Expired - Fee Related CN205395807U (en) | 2016-02-29 | 2016-02-29 | Direct current copped wave speed governing electric locomotive's closed loop speed adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205395807U (en) |
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 |
| CN107631740A (en) * | 2017-09-11 | 2018-01-26 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of encoder opto-electronic compensation circuit, method and photoelectric encoder |
| RU2731401C1 (en) * | 2019-09-05 | 2020-09-02 | Акционерное общество "Научно-исследовательский институт железнодорожного транспорта" | Method for controlling power efficiency of freight train locomotive |
-
2016
- 2016-02-29 CN CN201620149471.3U patent/CN205395807U/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 |
| CN107631740A (en) * | 2017-09-11 | 2018-01-26 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of encoder opto-electronic compensation circuit, method and photoelectric encoder |
| RU2731401C1 (en) * | 2019-09-05 | 2020-09-02 | Акционерное общество "Научно-исследовательский институт железнодорожного транспорта" | Method for controlling power efficiency of freight train locomotive |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 |