CN103684159A - Control method for preventing diesel locomotive auxiliary electricity generation circuit from overvoltage - Google Patents
Control method for preventing diesel locomotive auxiliary electricity generation circuit from overvoltage Download PDFInfo
- Publication number
- CN103684159A CN103684159A CN201310660478.2A CN201310660478A CN103684159A CN 103684159 A CN103684159 A CN 103684159A CN 201310660478 A CN201310660478 A CN 201310660478A CN 103684159 A CN103684159 A CN 103684159A
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- China
- Prior art keywords
- generation circuit
- value
- overvoltage
- power generation
- control method
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
- H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a control method for preventing a diesel locomotive auxiliary electricity generation circuit from overvoltage. A voltage base value of the auxiliary electricity generation circuit is set, an actual voltage value of the auxiliary electricity generation circuit is detected, the difference between the voltage base value and the actual voltage value is put into a PI to be adjusted and calculated, and a PI calculation result is used for generating a PWM wave form to drive an auxiliary generator exciting current. The control method is characterized in that the PWM duty ratio is detected, when the PWM duty ratio is larger than a preset value P%, the voltage base value is adjusted, and PWM output is limited. The problem that overvoltage happens on the diesel locomotive auxiliary electricity generation circuit because the rotating speed of a diesel engine is promoted when the diesel engine is low in rotating speed and an air compressor works is solved, and not only is safety of an electrical system ensured, but also the needs for operating a diesel locomotive are met.
Description
Technical field
The present invention relates to a kind of control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit, belong to railway locomotive technical field.
Background technology
Diesel locomotive auxiliary power generation circuit is converted into electrical power by exchanging auxiliary generator by the part mechanical output of diesel engine of locomotive output, and by rectifier bridge, alternating current is converted into direct current, offers the uses such as locomotive control, part electrical system.When diesel engine shuts down, rely on batteries that locomotive carries to provide electric energy for locomotive control, part electrical system.But battery group capacity is limited, can support that the time of locomotive control, the operation of part electrical system is also limited.Therefore under normal circumstances, after diesel engine running, rely on auxiliary power generation circuit for locomotive control, part electrical system provide electric energy, be battery charging simultaneously.If during locomotive operation, auxiliary power generation circuit working is abnormal, and batteries can provide electric energy temporarily, but likely causes part to control dysfunction; If operation irregularity frequently occurs auxiliary power generation circuit, also can cause the life-span of batteries to reduce.Coke oven controller adopts permanent reference mode conventionally, controls to realize auxiliary generator excitation is controlled, and then control auxiliary power generation circuit voltage by PI.Known according to generator external characteristic and adjustment characteristic, in the diesel engine slow-speed of revolution especially idling and air compressor machine when work, owing to being subject to auxiliary generator capacity and bel-drivenn restriction, auxiliary power generation circuit voltage reduces, control system, in order to reach predetermined voltage reference, can increase excitation, but while reaching certain limit, the power that increases again excitation auxiliary power generation can obviously not increase yet, and will voltage be maintained on a certain magnitude of voltage lower than predetermined voltage.This just causes exciting current in full excited state; if now diesel engine speed improves, will directly cause auxiliary power generation acc power to jump, and then make auxiliary power generation circuit overvoltage; trigger overvoltage protection, and then can cause a series of serious consequences such as locomotive unloading, auxiliary power generation power-off.Also have by Locomotive Microcomputer Control System, detect air compressor machine state, when air compressor machine is worked, forbid diesel engine speed regulation.But this will make diesel engine speed regulation be affected, and occur the phenomenons such as speed governing sluggishness, make driver and conductor think diesel engine speed regulation fault by mistake, affect locomotive and control.
Summary of the invention
Object of the present invention overcomes the deficiency of above-mentioned prior art exactly, and a kind of control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit is provided.
The object of the present invention is achieved like this: a kind of control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit, set auxiliary power generation circuit voltage fiducial value (Vref), detect auxiliary power generation circuit actual voltage value (Vaux), the two difference is sent into PI and regulate calculating, use PI result of calculation to generate PWM waveform, drive auxiliary generator exciting current, it is characterized in that PWM duty ratio to detect, when PWM duty ratio is greater than predetermined value P%, adjust voltage reference value Vref, and limit PWM output.
In order to realize better object of the present invention, described PWM duty ratio predetermined value P% value is 70%.
In order to realize better object of the present invention, the minimum permission voltage that the minimum value Vref_min value of described voltage reference adjustable extent is power consumption equipment.
In order to realize better object of the present invention, the limited field value of described PWM output duty cycle is 1%-70%.
The solution of the present invention, promotes diesel engine speed while having solved the diesel engine slow-speed of revolution and air compressor machine work, and the superpotential problem of locomotive-auxiliary generating circuit, has not only guaranteed electrical system safety but also met the needs that locomotive is controlled.
Accompanying drawing explanation
Fig. 1 is the control method theory diagram that prevents the overvoltage of diesel locomotive auxiliary power generation circuit of the embodiment of the present invention.
Fig. 2 is the software flow block diagram of the embodiment of the present invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, the control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit of the present embodiment, its system operation logic is: after system starts, first enter frame 1.2 and carry out the detection of PWM duty ratio, last time duty ratio and default duty ratio P% comparison (P% is preset as 70%), and result is exported to 1.3; At frame 1.3 voltage references, dynamically adjust, according to PWM duty ratio comparative result, determine whether to adjust voltage reference, if need to adjust, progressively adjust within the specific limits voltage reference Vref; Actual voltage value Vaux at frame 1.4 voltage acquisition auxiliary power generation circuit; At frame 1.5, using Vref and Vaux as initial conditions, carry out PI and regulate and calculate, obtain PWM duty ratio; In the actual output of frame 1.6 restriction PWM, excitation system is carried out to software protection.
Referring to Fig. 2, prevent the control method of diesel locomotive auxiliary power generation circuit overvoltage, its software flow enters frame 2.2 after system starts, and judges whether a upper cycle P WM duty ratio is greater than default duty ratio P%(and is preset as 70%): be to enter frame 2.3, the no frame 2.7 that enters.Enter frame 2.3, dynamically adjust Vref, make Vref=Vref_old-Δ V.Enter frame 2.4, judge whether Vref is greater than the minimum value of Vref_min(voltage reference adjustable extent, the minimum permission voltage that value is power consumption equipment, for example 64V): be to enter frame 2.5, the no frame 2.6 that enters.Enter frame 2.5, upgrade Vref_old, Vref_old=Vref.Enter frame 2.6, upgrade Vref_old, Vref_old=Vref_min.Enter frame 2.7, detect auxiliary power generation circuit virtual voltage Vaux.Enter frame 2.8, using Vref and Vaux as input, carry out PI and regulate and calculate, and obtain PWM duty ratio.Enter frame 2.9, carry out the export-restriction of PWM duty ratio, its maximum constraints scope is at 1%-70%.Enter frame 2.10, drive exciting current.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit, set auxiliary power generation circuit voltage fiducial value (Vref), detect auxiliary power generation circuit actual voltage value (Vaux), the two difference is sent into PI and regulate calculating, use PI result of calculation to generate PWM waveform, drive auxiliary generator exciting current, it is characterized in that PWM duty ratio to detect, when PWM duty ratio is greater than predetermined value P%, adjusts voltage reference value Vref, and limit PWM output.
2. the control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit according to claim 1, is characterized in that described PWM duty ratio predetermined value P% value is 70%.
3. the control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit according to claim 1, the minimum value Vref_min value that it is characterized in that described voltage reference adjustable extent is the minimum voltage that power consumption equipment allows.
4. the control method that prevents the overvoltage of diesel locomotive auxiliary power generation circuit according to claim 1, the limited field value that it is characterized in that described PWM output duty cycle is 1%-70%.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660478.2A CN103684159B (en) | 2013-12-05 | 2013-12-05 | Prevent the control method of diesel locomotive auxiliary electricity generation circuit from overvoltage |
| AU2014265103A AU2014265103B2 (en) | 2013-12-05 | 2014-10-23 | Control method for preventing auxiliary generator circuit of diesel locomotive from overvoltage |
| PCT/CN2014/089315 WO2015081768A1 (en) | 2013-12-05 | 2014-10-23 | Control method for preventing auxiliary electricity generation circuit of internal combustion locomotive from over voltage |
| NZ702197A NZ702197A (en) | 2013-12-05 | 2014-10-23 | Control method for preventing auxiliary generator circuit of diesel locomotive from overvoltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660478.2A CN103684159B (en) | 2013-12-05 | 2013-12-05 | Prevent the control method of diesel locomotive auxiliary electricity generation circuit from overvoltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103684159A true CN103684159A (en) | 2014-03-26 |
| CN103684159B CN103684159B (en) | 2016-06-29 |
Family
ID=50320697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310660478.2A Active CN103684159B (en) | 2013-12-05 | 2013-12-05 | Prevent the control method of diesel locomotive auxiliary electricity generation circuit from overvoltage |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN103684159B (en) |
| AU (1) | AU2014265103B2 (en) |
| NZ (1) | NZ702197A (en) |
| WO (1) | WO2015081768A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081768A1 (en) * | 2013-12-05 | 2015-06-11 | 中国北车集团大连机车车辆有限公司 | Control method for preventing auxiliary electricity generation circuit of internal combustion locomotive from over voltage |
| CN110798108A (en) * | 2019-11-07 | 2020-02-14 | 陕西航空电气有限责任公司 | Grading unloading method for overvoltage suppression device of three-phase variable-frequency alternating-current power generation system |
| CN113949140A (en) * | 2021-11-24 | 2022-01-18 | 中车大连机车车辆有限公司 | Software control method for preventing storage battery from being charged and overvoltage |
Citations (6)
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|---|---|---|---|---|
| EP0735641A1 (en) * | 1995-03-31 | 1996-10-02 | Mitsubishi Denki Kabushiki Kaisha | Charge control system for use in internal combustion engine |
| US20040025839A1 (en) * | 2002-08-09 | 2004-02-12 | Kazuyoshi Kashibata | Fuel injection and ignition system for internal combustion engine |
| CN101951217A (en) * | 2010-08-13 | 2011-01-19 | 株洲南车时代电气股份有限公司 | Diesel locomotive auxiliary engine control device |
| CN102055327A (en) * | 2009-11-09 | 2011-05-11 | 群光电能科技股份有限公司 | Power supply controller capable of regulating duty ratio externally |
| CN102738770A (en) * | 2012-06-29 | 2012-10-17 | 中国北车集团大连机车车辆有限公司 | Unloading overvoltage control method for auxiliary power generation system of locomotive |
| CN202713220U (en) * | 2012-03-15 | 2013-01-30 | 戚墅堰机车车辆厂工业公司 | Internal combustion locomotive voltage regulator |
Family Cites Families (8)
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| JP3133850B2 (en) * | 1993-02-04 | 2001-02-13 | 三菱電機株式会社 | Control method and control device for vehicle alternator |
| JP3337805B2 (en) * | 1994-02-10 | 2002-10-28 | マツダ株式会社 | Alternator control device |
| US6486568B1 (en) * | 1999-12-21 | 2002-11-26 | General Electric Company | Power system using a multi-functional power interface unit |
| CN100559697C (en) * | 2006-08-18 | 2009-11-11 | 朋程科技股份有限公司 | The method of the output voltage of stable generator and the voltage regulator circuit of generator |
| JP5405980B2 (en) * | 2009-10-29 | 2014-02-05 | 本田技研工業株式会社 | Generator output control device |
| FR2959076B1 (en) * | 2010-04-19 | 2012-08-10 | Valeo Equip Electr Moteur | METHOD FOR CONTROLLING CONTROL OF A MOTOR VEHICLE ALTERNATOR, AND DEVICES THEREOF |
| CN103095203A (en) * | 2012-03-15 | 2013-05-08 | 戚墅堰机车车辆厂工业公司 | Internal combustion locomotive voltage regulator |
| CN103684159B (en) * | 2013-12-05 | 2016-06-29 | 中国北车集团大连机车车辆有限公司 | Prevent the control method of diesel locomotive auxiliary electricity generation circuit from overvoltage |
-
2013
- 2013-12-05 CN CN201310660478.2A patent/CN103684159B/en active Active
-
2014
- 2014-10-23 AU AU2014265103A patent/AU2014265103B2/en not_active Ceased
- 2014-10-23 NZ NZ702197A patent/NZ702197A/en unknown
- 2014-10-23 WO PCT/CN2014/089315 patent/WO2015081768A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0735641A1 (en) * | 1995-03-31 | 1996-10-02 | Mitsubishi Denki Kabushiki Kaisha | Charge control system for use in internal combustion engine |
| US20040025839A1 (en) * | 2002-08-09 | 2004-02-12 | Kazuyoshi Kashibata | Fuel injection and ignition system for internal combustion engine |
| CN102055327A (en) * | 2009-11-09 | 2011-05-11 | 群光电能科技股份有限公司 | Power supply controller capable of regulating duty ratio externally |
| CN101951217A (en) * | 2010-08-13 | 2011-01-19 | 株洲南车时代电气股份有限公司 | Diesel locomotive auxiliary engine control device |
| CN202713220U (en) * | 2012-03-15 | 2013-01-30 | 戚墅堰机车车辆厂工业公司 | Internal combustion locomotive voltage regulator |
| CN102738770A (en) * | 2012-06-29 | 2012-10-17 | 中国北车集团大连机车车辆有限公司 | Unloading overvoltage control method for auxiliary power generation system of locomotive |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081768A1 (en) * | 2013-12-05 | 2015-06-11 | 中国北车集团大连机车车辆有限公司 | Control method for preventing auxiliary electricity generation circuit of internal combustion locomotive from over voltage |
| CN110798108A (en) * | 2019-11-07 | 2020-02-14 | 陕西航空电气有限责任公司 | Grading unloading method for overvoltage suppression device of three-phase variable-frequency alternating-current power generation system |
| CN110798108B (en) * | 2019-11-07 | 2021-07-06 | 陕西航空电气有限责任公司 | Grading unloading method for overvoltage suppression device of three-phase variable-frequency alternating-current power generation system |
| CN113949140A (en) * | 2021-11-24 | 2022-01-18 | 中车大连机车车辆有限公司 | Software control method for preventing storage battery from being charged and overvoltage |
| CN113949140B (en) * | 2021-11-24 | 2023-11-10 | 中车大连机车车辆有限公司 | Software control method for preventing storage battery from being charged and overvoltage |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015081768A1 (en) | 2015-06-11 |
| AU2014265103B2 (en) | 2016-05-05 |
| NZ702197A (en) | 2017-02-24 |
| AU2014265103A1 (en) | 2015-06-25 |
| CN103684159B (en) | 2016-06-29 |
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