CN109318724A - The traction power distribution method of rail traffic vehicles trailer system - Google Patents
The traction power distribution method of rail traffic vehicles trailer system Download PDFInfo
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- CN109318724A CN109318724A CN201710643204.0A CN201710643204A CN109318724A CN 109318724 A CN109318724 A CN 109318724A CN 201710643204 A CN201710643204 A CN 201710643204A CN 109318724 A CN109318724 A CN 109318724A
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- traction
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- rail traffic
- car
- traffic vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/32—Control or regulation of multiple-unit electrically-propelled vehicles
- B60L15/38—Control or regulation of multiple-unit electrically-propelled vehicles with automatic control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/12—Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of traction power distribution methods of rail traffic vehicles trailer system, by the traction general power mean allocation of rail traffic vehicles trailer system to every section motor-car, then again by the corresponding power distribution of each section motor-car to the minimum traction electric machine that can be born, other traction electric machines then stop working.The traction power distribution method of rail traffic vehicles trailer system of the invention is with principle is simple, easy to operate, system effectiveness is high and meets the requirements such as comfort level requirement.
Description
Technical field
The invention mainly relates to technical field of rail traffic, refer in particular to a kind of traction power of rail traffic vehicles trailer system
Distribution method.
Background technique
Currently, the traction power of rail traffic vehicles is to be averagely allocated to each traction electric machine, partial picture can consider axis weight
The influence of transfer and be adjusted compensation.To sum up, the traction electric machine of all normal conditions is equal when rail traffic vehicles are drawn
Work, the traction power respectively undertaken are also about the same.The advantages of traction power distribution method is simple and reliable, but there is also not
Few limitation.
When rail traffic vehicles are run, the time of Operation at full power is shorter, runs shape in small-power in more times
State, the 50% of vehicle traction power deficiency full power.Therefore, in small-power operating status, traction electric machine is in small-power work
State is similar to " low load with strong power ", and efficiency is lower than Operation at full power state, non-most economical working condition.
In addition, the power loss of the traction convertor of driving traction electric machine is divided into two parts: on-state loss and switching loss,
The two size is totally suitable.Wherein on-state loss is related with the power of traction electric machine, and power of traction motor is smaller, then on-state is damaged
It consumes smaller；Switching loss is related with traction convertor switching frequency, and unrelated with the power of traction electric machine, switching loss not with
Power of traction motor becomes smaller and reduces.Therefore, when power of traction motor reduces, the efficiency of traction convertor is totally also to reduce
's.
Traction convertor and traction electric machine are generally collectively referred to as trailer system by we.From above-mentioned analysis it is found that when track is handed over
When the small-power that is open to traffic is run, the efficiency of traction electric machine is lower than Operation at full power state, and the efficiency of traction convertor is generally
And with power of traction motor reduction and reduce.Therefore, under current traction power distribution method, the efficiency of trailer system
It is reduced with the reduction of rail traffic vehicles power.
According to power distribution form, current track vehicular traffic can be divided into power-centralized type and power decentralized type, and move
Power concentrated can be regarded as the special circumstances of power decentralized type.Therefore, just it is with power decentralized type rail traffic vehicles here
Prototype is analyzed, and power-centralized type vehicle then can be derived more simply.
As shown in Figure 1, for the typical power decentralized type rail traffic vehicles of column: 4 dynamic 2 subway trains dragged.Wherein: Tc
The trailer with drivers' cab is represented, without power, 4 empty circles represent the wheel pair of 4 not no traction electric machines；Mp represents band by electricity
The motor-car of bow, 4 solid circles represent 4 wheels pair for being configured with traction electric machine；M represents common motor-car, equally has 4 pairs to be configured with
The wheel pair of traction electric machine.Full train is configured with 16 traction electric machines altogether, is uniformly distributed on 4 motor-cars.
To derive the formula with universality, it is assumed that full train traction general power is PSUM, full train motor-car quantity is m,
Every section motor-car has n item wheel to being configured with traction electric machine.Current distribution method be general power is fifty-fifty distributed to m section (or
It is a) on motor-car, so the power of each motor-car is
And each motor-car by its power averaging is distributed to n item wheel pair, therefore the power of every wheel pair are as follows:
Although power-centralized type rail traffic vehicles can consider the axle weight transfer phenomenon between several wheels pair and be mended using axis again
Compensation method, so that the traction power of several wheels pair in the same motor-car is slightly different, but overall or comparable.It is herein letter
Change analysis, ignores the influence that axis compensates again, while also ignoring the influence of failure.
With the difference of train operation operating condition, PSUMSize constantly change, and P when traction working conditionSUMFor positive number, braking
P when operating conditionSUMFor negative, P when coastingSUMIt is again zero.But in current traction power distribution method, no matter PSUMHow to change,
The traction power of each motor-car meets formula (1), and the traction power of every motor car wheel pair all meets formula (2).
As previously mentioned, the time of rail traffic vehicles Operation at full power is generally shorter, and more times are in small function
The state of rate operation, i.e. vehicle traction power PSUMThe 50% of insufficient train full power.When small-power is run, electricity is on the one hand drawn
Machine is in " low load with strong power " state, inefficient；On the other hand, the switching loss accounting of traction convertor is bigger, causes to lead
The efficiency for drawing current transformer is lower.Therefore, it is inefficient to will lead to trailer system for these two aspects, so that rail traffic vehicles
Traction energy consumption increases.
To solve the problems, such as that rail traffic vehicles efficiency in small-power operating condition is lower, most efficient method be exactly
Rail traffic vehicles internal power distribute when so that vehicle be in small-power run when and traction electric machine is in traction convertor
High-power operating condition, to promote the working efficiency of trailer system.
Most straightforward approach is that rail traffic vehicles are drawn general power PSUMDistribute to the least traction electricity that can be born
Machine, and remaining traction electric machine and its corresponding traction convertor is made to stop working, to realize the promotion of trailer system efficiency.
Assuming that the peak power that each traction electric machine can be born is PTOP.It is calculated, can be calculated most according to Such analysis
The traction electric machine quantity needed less:
More than one solution in formula (3), nminTake a wherein the smallest solution.
This method is by general power PSUMDistribute to nminPlatform traction electric machine, remaining traction electric machine and corresponding traction convertor
It stops working.Work as PSUMWhen variation, nminAlso change therewith；PSUMWhen increase, nminQuantity also one by one by platform increase；
PSUMWhen reduction, nminQuantity also one by one by platform reduce.
Such optimizing distribution method is relatively easy, but brings challenge for rail traffic vehicles rate of acceleration change.City
0.75m/s is not to be exceeded in regulation rate of acceleration change in city's rail traffic vehicles application standard3, because rate of acceleration change is too big
The comfort of passenger will reduce.But rate of acceleration change can not be too small, and otherwise the dynamic performance of train will reduce.At present
Mean allocation method in, the rate of acceleration change of train is undertaken together by all traction electric machines, every traction electric machine tractive force
Generated rate of acceleration change is 0.75m/s3.And after using above-mentioned optimization method, the train traction in some transient state
Power variation will be only embodied on a certain traction electric machine, and the change rate of the traction electric machine tractive force is original m × n times, and every
There is n platform traction electric machine on section motor-car, therefore the rate of acceleration change that motor-car where the traction electric machine is born is original m times, i.e.,
Rate of acceleration change is m × 0.75m/s3。
In conclusion be significantly increased using the rate of acceleration change that above-mentioned optimizing distribution method will lead to certain motor-car, from
And comfort of passenger is influenced, therefore this method is not suitable for rail traffic vehicles.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
Kind of principle is simple, traction power distribution method easy to operate and high system effectiveness rail traffic vehicles trailer system.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of traction power distribution method of rail traffic vehicles trailer system, by leading for rail traffic vehicles trailer system
Draw general power mean allocation to every section motor-car, then again by the corresponding power distribution of each section motor-car to the minimum traction electricity that can be born
On machine, other traction electric machines then stop working.
Preferably, when the corresponding power of every section motor-car increases, the traction electric machine quantity of work increases by platform；When every section is dynamic
When the corresponding power of vehicle reduces, the traction electric machine quantity of work reduces by platform.
Preferably, the traction electric machine quantity of every section motor-car is identical.
Compared with the prior art, the advantages of the present invention are as follows:
The traction power distribution method of rail traffic vehicles trailer system of the invention, first draws rail traffic vehicles
General power fifty-fifty distributes to every section motor-car, then will distribute to the least traction electric machine that can be born in motor-car again, other to lead
Draw that motor is then out of service, to realize the promotion of trailer system efficiency, while can satisfy the requirement of system comfort level.
Detailed description of the invention
Fig. 1 is the power configuration schematic diagram of rail traffic vehicles of the invention.
Specific embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Figure 1, in order to solve problem above, the traction power of rail traffic vehicles trailer system of the invention is distributed
Rail traffic vehicles are specifically first drawn general power P by methodSUMEvery section motor-car is fifty-fifty distributed to, then the traction function of every section motor-car
Rate isWherein m is the quantity of motor-car；Again by PMThe least traction electric machine that can be born in motor-car is distributed to,
NumberWherein PTOPFor the peak power that each traction electric machine can be born, nminnFor natural number and take wherein most
Small one, to make remaining traction electric machine and its corresponding traction convertor in motor-car stop working, to realize traction system
The promotion for efficiency of uniting.The traction power distribution method of rail traffic vehicles trailer system of the invention, by every section motor-car general power
PMDistribute to nminnPlatform traction electric machine, remaining traction electric machine and corresponding traction convertor stop working in the motor-car.Work as PMBecome
When change, nminnAlso change therewith；PMWhen increase, nminnQuantity also one by one by platform increase；PMWhen reduction, nminnQuantity
Also it is reduced one by one by platform.In addition, the tractive force variation of a motor-car will only be embodied in a certain in some transient state
On traction electric machine, the change rate of the traction electric machine tractive force is original n times.But the tractive force change rate of every section motor-car still with original
Come that mean allocation method is identical, therefore the rate of acceleration change of motor-car is still 0.75m/s3, meet vehicle application requirement.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (3)
1. a kind of traction power distribution method of rail traffic vehicles trailer system, which is characterized in that lead rail traffic vehicles
Draw the traction general power mean allocation of system to every section motor-car, then again can extremely bear the corresponding power distribution of each section motor-car
On minimum traction electric machine, other traction electric machines then stop working.
2. the traction power distribution method of rail traffic vehicles trailer system according to claim 1, which is characterized in that when
When the corresponding power of every section motor-car increases, the traction electric machine quantity of work increases by platform；When the corresponding power of every section motor-car reduces
When, the traction electric machine quantity of work reduces by platform.
3. the traction power distribution method of rail traffic vehicles trailer system according to claim 1, which is characterized in that every
The traction electric machine quantity for saving motor-car is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643204.0A CN109318724B (en) | 2017-07-31 | 2017-07-31 | Traction power distribution method of rail transit vehicle traction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643204.0A CN109318724B (en) | 2017-07-31 | 2017-07-31 | Traction power distribution method of rail transit vehicle traction system |
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| Publication Number | Publication Date |
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| CN109318724A true CN109318724A (en) | 2019-02-12 |
| CN109318724B CN109318724B (en) | 2021-01-29 |
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Citations (7)
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|---|---|---|---|---|
| JPH05344611A (en) * | 1992-06-05 | 1993-12-24 | Toshiba Corp | Operation control device for vehicle |
| JP2001211513A (en) * | 2000-01-20 | 2001-08-03 | Hitachi Ltd | Control equipment of electric train |
| CN1719357A (en) * | 2004-07-06 | 2006-01-11 | 株式会社日立制作所 | Train controlling method and controller for railway vehicle |
| CN201544960U (en) * | 2009-11-17 | 2010-08-11 | 南车资阳机车有限公司 | Hybrid power control system of rail hybrid power locomotive |
| US20120245766A1 (en) * | 2009-09-09 | 2012-09-27 | Jared Klineman Cooper | Control system and method for remotely isolating powered units in a vehicle system |
| CN104718104A (en) * | 2012-09-17 | 2015-06-17 | Abb技术有限公司 | Energy management system for railbound vehicles |
| CN105644569A (en) * | 2014-09-25 | 2016-06-08 | 通用电气公司 | Vehicle traction control system and method |
-
2017
- 2017-07-31 CN CN201710643204.0A patent/CN109318724B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05344611A (en) * | 1992-06-05 | 1993-12-24 | Toshiba Corp | Operation control device for vehicle |
| JP2001211513A (en) * | 2000-01-20 | 2001-08-03 | Hitachi Ltd | Control equipment of electric train |
| CN1719357A (en) * | 2004-07-06 | 2006-01-11 | 株式会社日立制作所 | Train controlling method and controller for railway vehicle |
| US20120245766A1 (en) * | 2009-09-09 | 2012-09-27 | Jared Klineman Cooper | Control system and method for remotely isolating powered units in a vehicle system |
| CN201544960U (en) * | 2009-11-17 | 2010-08-11 | 南车资阳机车有限公司 | Hybrid power control system of rail hybrid power locomotive |
| CN104718104A (en) * | 2012-09-17 | 2015-06-17 | Abb技术有限公司 | Energy management system for railbound vehicles |
| CN105644569A (en) * | 2014-09-25 | 2016-06-08 | 通用电气公司 | Vehicle traction control system and method |
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| CN109318724B (en) | 2021-01-29 |
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