CN102386842B - Locomotive variable-voltage variable-frequency auxiliary power frequency control method - Google Patents
Locomotive variable-voltage variable-frequency auxiliary power frequency control method Download PDFInfo
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- CN102386842B CN102386842B CN2011103776129A CN201110377612A CN102386842B CN 102386842 B CN102386842 B CN 102386842B CN 2011103776129 A CN2011103776129 A CN 2011103776129A CN 201110377612 A CN201110377612 A CN 201110377612A CN 102386842 B CN102386842 B CN 102386842B
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Abstract
The invention relates to a locomotive variable-voltage variable-frequency auxiliary power frequency control method, comprising the following steps: setting two-stage motor temperature set values D1 and D2, transformer oil temperature set values M1 and M2 and current transformer coolant temperature set values S1 and S2; outputting the variable-voltage variable-frequency auxiliary power frequency to be 0Hz when the locomotive speed is less than 5km/h, outputting the variable-voltage variable-frequency auxiliary power frequency to be 25Hz if D is less than D1, M is less than M1 or S is less than S1,; and outputting the variable-voltage variable-frequency auxiliary power frequency to be 33Hz if D is less than D2, M is less than M2 or S is less than S2, otherwise outputting the variable-voltage variable-frequency auxiliary power frequency to be 50Hz. According to different limit values of the load temperature of an auxiliary machine, equipment consumption is reduced when a variable-voltage variable-frequency auxiliary power supply operates under different frequency working conditions, and noise when a locomotive pulls in is reduced.
Description
Technical field
The present invention relates to the railway locomotive technology, relate in particular to a kind of locomotive variable-voltage variable-frequency auxiliary power frequency control method.
Background technology
Auxiliary equipment on the locomotive such as traction ventilator, composite cooler ventilation blower, transformer oil pump etc. provide power supply by locomotive auxiliary converter usually, different according to the electricity consumption load characteristic, AuCT output constant voltage constant frequency (CVCF) and variable voltage variable frequency (VVVF) power supply.Wherein the VVVF power supply when driver's speed adjusting lever level output frequency below 4 grades the time be 33Hz, rest working conditions output full range 50Hz.Because the minimum output of accessory power supply frequency 33Hz, cooling blower will send the noise pollution greater than 73 decibels when locomotive is come in and gone out platform.And output frequency setting and each auxiliary equipment of locomotive do not have the relevant control relation, and during locomotive operation, in the 50H operation, energy consumption is large always for auxiliary equipment, and equipment loss increases.
Summary of the invention
Purpose of the present invention overcomes the deficiency of above-mentioned prior art exactly, and a kind of locomotive variable-voltage variable-frequency auxiliary power frequency control method of controlling according to the operating mode of each auxiliary equipment is provided.
The objective of the invention is existing like this: a kind of locomotive variable-voltage variable-frequency auxiliary power frequency control method is characterized in that taking the following step:
A) set two-stage electric motor desired temperature D1, D2, transformer oil temperature set point M1, M2, current transformer coolant temperature set point S1, S2;
B) detect locomotive speed;
C) if speed less than 5km/h, then variable voltage variable frequency accessory power supply frequency is output as 0Hz, then returns step b), otherwise enter next step;
D) detect motor temperature D, transformer oil temperature M, current transformer coolant temperature S;
E) if D＜D1, M＜M1 or S＜S1 are arranged, then variable voltage variable frequency accessory power supply frequency is output as 25Hz, then returns step b), otherwise enter next step;
F) if D＜D2, M＜M2 or S＜S2 are arranged, then variable voltage variable frequency accessory power supply frequency output 33Hz is then to return step b), otherwise enter next step;
G) variable voltage variable frequency accessory power supply frequency is output as 50Hz;
H) return step b).
The solution of the present invention because according to the different limit values of auxiliary load temperature, the variable voltage variable frequency accessory power supply is operated under the different frequency operating modes, reduces equipment loss, the noise when reducing simultaneously locomotive and entering the station.
Description of drawings
Fig. 1 is the FB(flow block) of the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Referring to accompanying drawing 1.At locomotive transformer, traction electric machine and converter device difference set temperature transducer.Enter frame 1, set two-stage electric motor desired temperature D1, D2, transformer oil temperature set point M1, M2, current transformer coolant temperature set point S1, S2.Enter frame 2, detect locomotive speed.Enter frame 3, compare locomotive speed, if speed less than 5km/h, then enters frame 3.1, then variable voltage variable frequency accessory power supply frequency output 0Hz returns frame 2; Otherwise enter frame 4.At frame 4, detect motor temperature D, transformer oil temperature M, current transformer coolant temperature S.Enter frame 5, motor temperature D, transformer oil temperature M, current transformer coolant temperature S are compared with its first set point D1, M1, S1 respectively, if D＜D1, M＜M1, S＜S1 have one to be satisfied, then enter frame 5.1, variable voltage variable frequency accessory power supply frequency is output as 25Hz, then return frame 2, otherwise enter frame 6.At frame 6, motor temperature D, transformer oil temperature M, current transformer coolant temperature S are compared with its second set point D2, M2, S2 respectively, if D＜D2, M＜M2 or S＜S2, then enter frame 6.1, variable voltage variable frequency accessory power supply frequency is output as 33Hz, then returns frame 2, otherwise enters frame 7.At frame 7, variable voltage variable frequency accessory power supply frequency is output as 50Hz.Return frame 2.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (1)
1. locomotive variable-voltage variable-frequency auxiliary power frequency control method is characterized in that taking the following step:
A) set two-stage electric motor desired temperature D1, D2, transformer oil temperature set point M1, M2, current transformer coolant temperature set point S1, S2;
B) detect locomotive speed;
C) if speed less than 5km/h, then variable voltage variable frequency accessory power supply frequency is output as 0Hz, then returns step b), otherwise enter next step;
D) detect motor temperature D, transformer oil temperature M, current transformer coolant temperature S;
E) if D＜D1, M＜M1 or S＜S1 are arranged, then variable voltage variable frequency accessory power supply frequency is output as 25Hz, then returns step b), otherwise enter next step;
F) if D＜D2, M＜M2 or S＜S2 are arranged, then variable voltage variable frequency accessory power supply frequency output 33Hz is then to return step b), otherwise enter next step;
G) variable voltage variable frequency accessory power supply frequency is output as 50Hz;
H) return step b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103776129A CN102386842B (en) | 2011-11-24 | 2011-11-24 | Locomotive variable-voltage variable-frequency auxiliary power frequency control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103776129A CN102386842B (en) | 2011-11-24 | 2011-11-24 | Locomotive variable-voltage variable-frequency auxiliary power frequency control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386842A CN102386842A (en) | 2012-03-21 |
| CN102386842B true CN102386842B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103776129A Expired - Fee Related CN102386842B (en) | 2011-11-24 | 2011-11-24 | Locomotive variable-voltage variable-frequency auxiliary power frequency control method |
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| CN (1) | CN102386842B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318196A (en) * | 2013-07-01 | 2013-09-25 | 中国北车集团大连机车车辆有限公司 | Method for controlling louvers of cooling chamber in internal combustion locomotive |
| CN108189849B (en) * | 2017-12-28 | 2019-11-12 | 中车大连机车车辆有限公司 | East wind 4D locomotive traction ventilation blower autocontrol method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB588204A (en) * | 1945-02-05 | 1947-05-16 | Benno Schwarz | Improvements connected with variable speed electric drives |
| JPS5396423A (en) * | 1977-02-01 | 1978-08-23 | Mitsubishi Electric Corp | Control system for induction motor |
| JPS6485596A (en) * | 1987-09-28 | 1989-03-30 | Mitsubishi Electric Corp | Back-up equipment for adjustable speed motor |
| CN200976563Y (en) * | 2006-06-23 | 2007-11-14 | 钟诗清 | Main driving mechanism of AC electric vehicle |
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