CN103738367B - Track traffic planned train graph optimization method - Google Patents
Track traffic planned train graph optimization method Download PDFInfo
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- CN103738367B CN103738367B CN201310741579.2A CN201310741579A CN103738367B CN 103738367 B CN103738367 B CN 103738367B CN 201310741579 A CN201310741579 A CN 201310741579A CN 103738367 B CN103738367 B CN 103738367B
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Abstract
The invention provides a kind of track traffic planned train graph optimization method, relate to urban rail transit technology field.The method comprises: S1, generation according to original scheme running chart, and record up-downgoing is stopped a moment value that enters the station for line segment, a moment value of dispatching a car; S2, close for moment value in each non-station of turning back and enter the station a moment value and the moment value of dispatching a car be in variable range to be mated; S3, by close for unlabelled between up direction or the adjacent station of down direction, moment value and equidirectional in variable range is entered the station a moment value and a moment value of dispatching a car mate; S4, upgrade original scheme running chart according to by enter the station a moment value and a moment value of dispatching a car of mating in step S2 and step S3, be optimized planned train graph.The present invention can make enter the station braking and start-up course height of dispatching a car of train overlap, and then makes the train being in traction state as often as possible absorb the regenerated energy of braking train.
Description
Technical field
The present invention relates to urban rail transit technology field, be specifically related to a kind of track traffic planned train graph optimization method.
Background technology
In urban track traffic, large volume and electricity can be produced when train regenerative brake, and to electrical network feedback energy, cause line voltage to raise.This is very unfavorable to the operation of substation equipment and vehicle.Therefore, need the energy absorbing of feedback to fall, to maintain Network Voltage Stability.
Current processing mode is in traction substation, arrange regenerated energy absorption plant.As shown in Figure 1, the large resistance in regenerated energy absorption plant is utilized, the energy fed back when consuming train regenerative brake with the form of heat energy.
In aforesaid way, the energy that train regenerative brake produces can not be effectively utilised, and the large resistance in absorption plant can produce a large amount of heats, the temperature in canyon is raised, adds the burden of air-conditioning and drafting apparatus.Therefore, which capacity usage ratio is lower.
Summary of the invention
(1) technical matters solved
For the deficiencies in the prior art, the invention provides a kind of track traffic planned train graph optimization method, in whole train operation, enter the station braking and start-up course height of dispatching a car of train can be made to overlap, and then make the train being in traction state as often as possible absorb the regenerated energy of braking train.
(2) technical scheme
For realizing above object, the present invention is achieved by the following technical programs:
The invention provides a kind of track traffic planned train graph optimization method, comprising:
S1, generation according to original scheme running chart, record up-downgoing is stopped a moment value that enters the station for line segment, a moment value of dispatching a car;
S2, close for moment value in each non-station of turning back and enter the station a moment value and the moment value of dispatching a car be in variable range to be mated, the moment value that enters the station that can mate is adjusted with a moment value of dispatching a car, make its moment value consistent, and the moment value that enters the station that the match is successful is marked with a moment value of dispatching a car;
S3, by close for unlabelled between up direction or the adjacent station of down direction, moment value and equidirectional in variable range is entered the station a moment value and a moment value of dispatching a car mate, the moment value that enters the station that can mate is adjusted with a moment value of dispatching a car, make its moment value consistent, and the moment value that enters the station that the match is successful is marked with a moment value of dispatching a car; Described up direction or the adjacent station of down direction do not comprise the last two-stage station of up direction or down direction;
S4, according to by enter the station a moment value and the moment value of dispatching a car that mark in step S2 and step S3, original scheme running chart to be upgraded, obtain energy conservation program running chart.
Preferably, the method for the coupling in step S2 is:
S21a, the initial travel line direction determining each non-station of turning back are up direction, and adjust up stop line segment one by one first of first of direction non-station of turning back descending parking line segment from top to bottom from original scheme running chart;
S22a, with a moment value that enters the station of the descending parking line segment at each non-station of turning back for reference instant value, a moment value that enters the station for the up stop line segment that the time on same station of searching is adjacent; When find two adjacent enter the station a some moment value time, choose with reference instant value closer to the up stop line segment of a moment value that enters the station as pending up stop line segment; When find adjacent only one enter the station a some moment value time, directly choose the up stop line segment of this moment value that enters the station as pending up stop line segment;
If a moment of entering the station of the described pending up line segment that stops of S23a early than reference instant value, then calculates the first difference of a moment value of dispatching a car of enter the station a brake actuating moment value and the described pending up line segment that stops of the descending parking line segment at described each non-station of turning back;
If a moment of entering the station for the described pending up line segment that stops is later than reference instant value, then calculates the enter the station descending parking line segment at brake actuating moment value a little and each non-station of turning back of the described pending up line segment that stops and to dispatch a car the second difference of a moment value;
S24a, judge that whether described first difference or the second difference uply stop within the scope of the controllable of line segment pending, when when the described first or second difference is within the scope of described controllable, to dispatch a car a moment value according to the described pending up line segment that stops of described first difference adjustment, the moment value that the described pending up line segment that stops is dispatched a car a little is consistent with a brake actuating moment value that enters the station of the descending parking line segment at described each non-station of turning back;
According to the brake actuating moment value that the described pending up line segment that stops of described second difference adjustment enters the station a little, the brake actuating moment value that the described pending up line segment that stops is entered the station a little is consistent with a moment value of dispatching a car of described descending parking line segment.
Preferably, the method for the coupling in step S2 is:
S21b, the initial travel line direction determining each non-station of turning back are down direction, and from original scheme running chart first of direction non-station of turning back from bottom to top first up stop line segment one by one descending parking line segment is adjusted;
S22b, with a moment value that enters the station of the up stop line segment at each non-station of turning back for reference instant value, a moment value that enters the station for the descending parking line segment that the time on same station of searching is adjacent; When find two adjacent enter the station a some moment value time, choose with reference instant value closer to the descending parking line segment of a moment value that enters the station as pending descending parking line segment; When find adjacent only one enter the station a some moment value time, directly choose the descending parking line segment of this moment value that enters the station as pending descending parking line segment;
The 3rd difference of a moment value if enter the station brake actuating moment value a little and the described pending descending line segment that stops that a moment of entering the station of the described pending descending line segment that stops of S23b early than reference instant value, then calculates the described up line segment that stops are dispatched a car;
If a moment of entering the station for the described pending descending line segment that stops is later than reference instant value, then calculates the enter the station up stop line segment at brake actuating moment value a little and each non-station of turning back of the described pending descending line segment that stops and to dispatch a car the 4th difference of a moment value;
S24b, judge that whether described 3rd difference or the 4th difference descendingly stop within the scope of the controllable of line segment pending, when when described 3rd difference or the 4th difference are within the scope of described controllable, according to a moment value of dispatching a car for the described pending descending line segment that stops of described 3rd difference adjustment, make a moment value of dispatching a car of the described pending descending line segment that stops consistent with a brake actuating moment value that enters the station of the up stop line segment at described each non-station of turning back;
According to the brake actuating moment value that the described pending descending line segment that stops of described 4th difference adjustment enters the station a little, the brake actuating moment value that the described pending descending line segment that stops is entered the station a little is consistent with a moment value of dispatching a car of the up stop line segment at described each non-station of turning back.
Preferably, a described brake actuating moment value=moment value that enters the station and train braking process commonly use the difference of time value.
Preferably, the stop method of calculating of controllable scope of line segment of described pending upstream or downstream is:
Calculate the lower limit of controllable scope in the following way:
From the first maximum amount that running interval angle calculation can move to left, computing formula is: the side-play amount of minimum interval+consecutive points followed the trail of by the first maximum amount moved to left=original scheme running chart running interval-main track; The side-play amount of described consecutive points is relative to original scheme running chart, the moment value entering the station a little or dispatch a car a little after adjustment and the deviate of former moment value, if adjustment after moment value early than former moment value, then this side-play amount be on the occasion of; If the moment is later than former moment value after adjustment, then this side-play amount is negative value; If do not adjusted, then this side-play amount is zero;
From the second maximum amount that adjustment capability angle calculation can move to left, computing formula is: the second maximum amount moved to left=current maximum compressible section operation time;
To get in the first and second maximum amount moved to left smaller value as the adjustment lower limit of the described pending up line segment that stops;
Calculate the higher limit of controllable scope in the following way:
From the first maximum amount that running interval angle calculation can move to right, computing formula is: the side-play amount of minimum interval+consecutive points followed the trail of by the first maximum amount moved to right=running chart Hang workshop Ge – main track; The side-play amount of described consecutive points is relative to original scheme running chart, the moment value entering the station a little or dispatch a car a little after adjustment and the deviate of former moment value, if adjustment after moment value early than former moment value, then this side-play amount be on the occasion of; If the moment is later than former moment value after adjustment, then this side-play amount is negative value; If do not adjusted, then this side-play amount is zero;
From the second maximum amount that adjustment capability angle calculation can move to right, computing formula is: the second maximum amount moved to right=current maximum increasable section operation time;
To get in the first and second maximum amount moved to right smaller value as the adjustment upper limit of the described pending up line segment that stops.
Preferably, the method for the coupling in step S3 is:
S31a, determine that initial travel line direction is up direction, and from original scheme running chart first station of turning back in direction from top to bottom first up stop line segment one by one up stop line segment is adjusted;
S32a, with a braking moment value that enters the station of described up stop line segment for reference instant, and find adjacent station line from the reversing sense of described up stop line segment; Described adjacent station line finds dispatch a car a some moment value adjacent with described reference instant, when finding two adjacent moment value of dispatching a car, choose with reference instant value closer to the up stop line segment of a moment value of dispatching a car as pending up stop line segment; When find adjacent only one dispatch a car a some moment value time, directly choose the up stop line segment of this moment value of dispatching a car as pending up stop line segment;
S33a, determine described up stop line segment the dispatch a car some moment value of a braking moment value on described pending up stop line segment that enter the station adjustable range in time, then adjust a moment value of dispatching a car for pending up stop line segment, thus make a braking moment value that enters the station of described up stop line segment consistent with a moment value of dispatching a car of pending up stop line segment.
Preferably, the method for the coupling in step S3 is:
S31b, determine that initial travel line direction is down direction, and from original scheme running chart first station of turning back in direction from bottom to top first descending parking line segment one by one descending parking line segment is adjusted;
S32b, with a braking moment value that enters the station of described descending parking line segment for reference instant, and find adjacent station line from the reversing sense of described descending parking line segment; Described adjacent station line finds dispatch a car a some moment value adjacent with described reference instant, when finding two adjacent moment value of dispatching a car, choose with reference instant value closer to the descending parking line segment of a moment value of dispatching a car as pending descending parking line segment; When find adjacent only one dispatch a car a some moment value time, directly choose the descending parking line segment of this moment value of dispatching a car as pending descending parking line segment;
S33b, determine described descending parking line segment the dispatch a car some moment value of a braking moment value on described pending descending parking line segment that enter the station adjustable range in time, then adjust a moment value of dispatching a car for pending descending parking line segment, thus make a braking moment value that enters the station of described descending parking line segment consistent with a moment value of dispatching a car of pending descending parking line segment.
Preferably, after step S4, comprise the step calculating the matching rate a little that enters the station a little and dispatch a car further,
Matching rate computing formula is:
Matching rate=(having mated enters the station a little and dispatch a car counts out/running chart in enter the station a little and dispatch a car a sum) × 100%.
(3) beneficial effect
The invention provides a kind of track traffic planned train graph optimization method, the operation scheme of main track train entirety is optimized from the aspect of Train operation plan operation, adopt tractor-trailer train to absorb the mode of braking train regenerated energy, improve capacity usage ratio, reduce energy consumption; Especially in high density metro operation, effect is more obvious.
The present invention adopts graphic processing mode to solve the complex logic problem of direct organization's energy-saving run chart, makes implementation comparatively simple.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is regenerated energy absorption plant schematic diagram of the prior art;
Fig. 2 is the schematic flow sheet of embodiment of the present invention middle orbit traffic planning running chart optimization method;
Fig. 3 is the moment value schematic diagram that enters the station searching same station time adjacent up stop line segment in the embodiment of the present invention;
Fig. 4 is that a moment of entering the station of the pending up line segment that stops in the embodiment of the present invention is early than reference instant value schematic diagram;
Fig. 5 is later than reference instant value schematic diagram in a moment of entering the station for the pending up line segment that stops in the embodiment of the present invention;
Fig. 6 adjusts the pending up line segment that stops to dispatch a car a moment value schematic diagram in the embodiment of the present invention;
Fig. 7 adjusts the pending up line segment that stops to dispatch a car a moment value schematic diagram in the embodiment of the present invention;
Fig. 8 determines in the embodiment of the present invention that initial travel line direction is that up direction starts to carry out adjustment schematic diagram to up stop line segment one by one;
Fig. 9 carries out adjustment schematic diagram to up stop line segment when being and determining in the embodiment of the present invention that initial travel line direction is up direction one by one;
Figure 10 determines in the embodiment of the present invention that initial travel line direction adjusts a moment value schematic diagram of dispatching a car for pending up stop line segment when being up direction;
Figure 11 determines in the embodiment of the present invention that initial travel line direction processes the schematic diagram of every bar station line successively when being up direction.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, 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, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
As shown in Figure 2, the invention provides a kind of track traffic planned train graph optimization method, comprising:
S1, generation according to original scheme running chart, record up-downgoing is stopped a moment value that enters the station for line segment, a moment value of dispatching a car;
S2, close for moment value in each non-station of turning back and enter the station a moment value and the moment value of dispatching a car be in variable range to be mated, the moment value that enters the station that can mate is adjusted with a moment value of dispatching a car, make its moment value consistent, and the moment value that enters the station that the match is successful is marked with a moment value of dispatching a car;
S3, by close for unlabelled between up direction or the adjacent station of down direction, moment value and equidirectional in variable range is entered the station a moment value and a moment value of dispatching a car mate, the moment value that enters the station that can mate is adjusted with a moment value of dispatching a car, make its moment value consistent, and the moment value that enters the station that the match is successful is marked with a moment value of dispatching a car; Described up direction or the adjacent station of down direction do not comprise the last two-stage station of up direction or down direction;
S4, according to by enter the station a moment value and the moment value of dispatching a car that mark in step S2 and step S3, original scheme running chart to be upgraded, obtain energy conservation program running chart.
The embodiment of the present invention optimizes the operation scheme of main track train entirety from the aspect that Train operation plan runs, and adopts tractor-trailer train to absorb the mode of braking train regenerated energy, improves capacity usage ratio, reduce energy consumption; Especially in high density metro operation, effect is more obvious.
Below the embodiment of the present invention is described in detail:
When the initial travel line direction determining each non-station of turning back is up direction, the method for the coupling in step S2 is:
S21a, the initial travel line direction determining each non-station of turning back are up direction, and adjust up stop line segment one by one first of first of direction non-station of turning back descending parking line segment from top to bottom from original scheme running chart;
S22a, as shown in Figure 3, with a moment value that enters the station of the descending parking line segment at each non-station of turning back for reference instant value, a moment value that enters the station for the up stop line segment that the time on same station of searching is adjacent; When find two adjacent enter the station a some moment value time, choose with reference instant value closer to the up stop line segment of a moment value that enters the station as pending up stop line segment; When find adjacent only one enter the station a some moment value time, directly choose the up stop line segment of this moment value that enters the station as pending up stop line segment;
S23a, as shown in Figure 4, if a moment of entering the station of the described pending up line segment that stops early than reference instant value, then calculates the first difference of a moment value of dispatching a car of enter the station a brake actuating moment value and the described pending up line segment that stops of the descending parking line segment at described each non-station of turning back;
As shown in Figure 5, if a moment of entering the station for the described pending up line segment that stops is later than reference instant value, then calculates the enter the station descending parking line segment at brake actuating moment value a little and each non-station of turning back of the described pending up line segment that stops and to dispatch a car the second difference of a moment value;
S24a, as shown in Figures 6 and 7, judge that whether described first difference or the second difference uply stop within the scope of the controllable of line segment pending, when when the described first or second difference is within the scope of described controllable, to dispatch a car a moment value according to the described pending up line segment that stops of described first difference adjustment, the moment value that the described pending up line segment that stops is dispatched a car a little is consistent with a brake actuating moment value that enters the station of the descending parking line segment at described each non-station of turning back;
According to the brake actuating moment value that the described pending up line segment that stops of described second difference adjustment enters the station a little, the brake actuating moment value that the described pending up line segment that stops is entered the station a little is consistent with a moment value of dispatching a car of described descending parking line segment.
And then, according to step S21a ~ S24a, process other descending parking line segment of the second station line.
And then, with original scheme running chart longitudinal axis direction from top to bottom, process every root station line (not comprising next root turn back line) successively.
When the initial travel line direction determining each non-station of turning back is down direction, the method for the coupling in step S2 is:
S21b, the initial travel line direction determining each non-station of turning back are down direction, and from original scheme running chart first of direction non-station of turning back from bottom to top first up stop line segment one by one descending parking line segment is adjusted;
S22b, with a moment value that enters the station of the up stop line segment at each non-station of turning back for reference instant value, a moment value that enters the station for the descending parking line segment that the time on same station of searching is adjacent; When find two adjacent enter the station a some moment value time, choose with reference instant value closer to the descending parking line segment of a moment value that enters the station as pending descending parking line segment; When find adjacent only one enter the station a some moment value time, directly choose the descending parking line segment of this moment value that enters the station as pending descending parking line segment;
The 3rd difference of a moment value if enter the station brake actuating moment value a little and the described pending descending line segment that stops that a moment of entering the station of the described pending descending line segment that stops of S23b early than reference instant value, then calculates the described up line segment that stops are dispatched a car;
If a moment of entering the station for the described pending descending line segment that stops is later than reference instant value, then calculates the enter the station up stop line segment at brake actuating moment value a little and each non-station of turning back of the described pending descending line segment that stops and to dispatch a car the 4th difference of a moment value;
S24b, judge that whether described 3rd difference or the 4th difference descendingly stop within the scope of the controllable of line segment pending, when when described 3rd difference or the 4th difference are within the scope of described controllable, according to a moment value of dispatching a car for the described pending descending line segment that stops of described 3rd difference adjustment, make a moment value of dispatching a car of the described pending descending line segment that stops consistent with a brake actuating moment value that enters the station of the up stop line segment at described each non-station of turning back;
According to the brake actuating moment value that the described pending descending line segment that stops of described 4th difference adjustment enters the station a little, the brake actuating moment value that the described pending descending line segment that stops is entered the station a little is consistent with a moment value of dispatching a car of the up stop line segment at described each non-station of turning back.
And then, according to step S21b ~ S24b, process other descending parking line segment of the second station line.
And then, with original scheme running chart longitudinal axis direction from the bottom up, process every root station line (do not comprise and go up a turn back line most) successively.
It should be noted that, a brake actuating moment value described above=moment value that enters the station and train braking process commonly use the difference of time value.Actual operating data shows the normal ≈ 40s of T.
Further, because the dwell time is used for the operation such as train boarding, be not suitable for automatic adjustment, so, in the present embodiment, plan the dwell time in running chart and fixingly not revise, adjustment can only be realized by the amendment of interval plan time of run.Because the adjustment of section operation time has bound, therefore, the adjustable range entering the station a little and dispatch a car a little can not exceed the adjustment limit of section operation time.Described pending upstream or downstream stop line segment controllable scope method of calculating be preferably:
Calculate the lower limit of controllable scope in the following way:
From the first maximum amount that running interval angle calculation can move to left, computing formula is: the side-play amount of minimum interval+consecutive points followed the trail of by the first maximum amount moved to left=original scheme running chart running interval-main track; The side-play amount of described consecutive points is relative to original scheme running chart, the moment value entering the station a little or dispatch a car a little after adjustment and the deviate of former moment value, if adjustment after moment value early than former moment value, then this side-play amount be on the occasion of; If the moment is later than former moment value after adjustment, then this side-play amount is negative value; If do not adjusted, then this side-play amount is zero;
From the second maximum amount that adjustment capability angle calculation can move to left, computing formula is: the second maximum amount moved to left=current maximum compressible section operation time;
To get in the first and second maximum amount moved to left smaller value as the adjustment lower limit of the described pending up line segment that stops;
Calculate the higher limit of controllable scope in the following way:
From the first maximum amount that running interval angle calculation can move to right, computing formula is: the side-play amount of minimum interval+consecutive points followed the trail of by the first maximum amount moved to right=running chart Hang workshop Ge – main track; The side-play amount of described consecutive points is relative to original scheme running chart, the moment value entering the station a little or dispatch a car a little after adjustment and the deviate of former moment value, if adjustment after moment value early than former moment value, then this side-play amount be on the occasion of; If the moment is later than former moment value after adjustment, then this side-play amount is negative value; If do not adjusted, then this side-play amount is zero;
From the second maximum amount that adjustment capability angle calculation can move to right, computing formula is: the second maximum amount moved to right=current maximum increasable section operation time;
To get in the first and second maximum amount moved to right smaller value as the adjustment upper limit of the described pending up line segment that stops.
At priority match with the up descending line segment that stops of line segment fire that stops of platform, it is made to enter the station on a little consistent with a moment of dispatching a car basis, adopt and equidirectionally to enter the station a little and dispatch a car Point matching mode with between station, realize remaining as far as possible do not mate enter the station a little consistent with the moment of dispatching a car a little.When determining that initial travel line direction is up direction, the method for the coupling in step S3 is:
S31a, as shown in Figure 8, determine that initial travel line direction is up direction, and from original scheme running chart first station of turning back in direction from top to bottom first up stop line segment one by one up stop line segment is adjusted;
S32a, as shown in Figure 9, with a braking moment value that enters the station of described up stop line segment for reference instant, and find adjacent station line from the reversing sense of described up stop line segment; Described adjacent station line finds dispatch a car a some moment value adjacent with described reference instant, when finding two adjacent moment value of dispatching a car, choose with reference instant value closer to the up stop line segment of a moment value of dispatching a car as pending up stop line segment; When find adjacent only one dispatch a car a some moment value time, directly choose the up stop line segment of this moment value of dispatching a car as pending up stop line segment;
S33a, as shown in Figure 10, time in the adjustable range determining a moment value of dispatching a car of a braking moment value on described pending up stop line segment that enter the station of described up stop line segment, then adjust a moment value of dispatching a car for pending up stop line segment, thus make a braking moment value that enters the station of described up stop line segment consistent with a moment value of dispatching a car of pending up stop line segment.
With reference to above-mentioned S31a ~ S33a step, according to time sequence, to process on turn back line successively all enters the station a little.
As shown in figure 11, process every bar station line successively according to current operation reversing sense, except second from the bottom station line and last turn back line.Why not containing last two station lines, be that a moment value that wherein enters the station a little and dispatch a car is fixed non-adjustable because turn back line enters the station as the datum line adjusted.
When determining that initial travel line direction is down direction, the method for the coupling in step S3 is:
S31b, determine that initial travel line direction is down direction, and from original scheme running chart first station of turning back in direction from bottom to top first descending parking line segment one by one descending parking line segment is adjusted;
S32b, with a braking moment value that enters the station of described descending parking line segment for reference instant, and find adjacent station line from the reversing sense of described descending parking line segment; Described adjacent station line finds dispatch a car a some moment value adjacent with described reference instant, when finding two adjacent moment value of dispatching a car, choose with reference instant value closer to the descending parking line segment of a moment value of dispatching a car as pending descending parking line segment; When find adjacent only one dispatch a car a some moment value time, directly choose the descending parking line segment of this moment value of dispatching a car as pending descending parking line segment;
S33b, determine described descending parking line segment the dispatch a car some moment value of a braking moment value on described pending descending parking line segment that enter the station adjustable range in time, then adjust a moment value of dispatching a car for pending descending parking line segment, thus make a braking moment value that enters the station of described descending parking line segment consistent with a moment value of dispatching a car of pending descending parking line segment.
With reference to above-mentioned S31b ~ S33b step, according to time sequence, to process on turn back line successively all enters the station a little.
Every bar station line is processed successively, except second from the bottom station line and last turn back line according to current operation reversing sense.Why not containing last two station lines, be that a moment value that wherein enters the station a little and dispatch a car is fixed non-adjustable because turn back line enters the station as the datum line adjusted.
After the coupling of above-mentioned two kinds of modes, after step S4, comprise the step calculating the matching rate a little that enters the station a little and dispatch a car further,
Matching rate computing formula is: matching rate=(having mated enters the station a little and dispatch a car counts out/running chart in enter the station a little and dispatch a car a sum) × 100%.Matching rate is higher, also just illustrates that the energy-saving effect of energy-conservation planned train graph is also better.
To sum up, first the embodiment of the present invention adopts common mode to generate original scheme running chart.On the basis of this original scheme running chart, close and be in entering the station a little and dispatching a car in variable range and a little adjust to the figure upper moment, make to enter the station a little consistent with a moment of dispatching a car.Adjustment mode is: priority match, with up line segment and the descending line segment that stops of stopping of platform, makes it enter the station a little consistent with a moment of dispatching a car; Secondly, adopt equidirectional with the Point matching mode that enters the station a little and dispatch a car between station, realize remaining as far as possible do not mate enter the station a little consistent with the moment of dispatching a car a little.Thus realize in running chart all enter the station a little with all dispatch a car a little as much as possible one by one pairing and the moment consistent.Like this, by the logic level problem according to energy-conservation principle establishment planned train graph, the graphic processing problem that practical plans running chart mid point is processed is converted into; Simplify the complexity of realization.Like this, finally can ensure in whole subway train operation, train enter the station braking and start-up course of dispatching a car height overlap.Thus realize the energy-conservation object of expection.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
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 to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments 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 (7)
1. a track traffic planned train graph optimization method, is characterized in that, comprising:
S1, generation according to original scheme running chart, record up-downgoing is stopped a moment value that enters the station for line segment, a moment value of dispatching a car;
S2, close for moment value in each non-station of turning back and enter the station a moment value and the moment value of dispatching a car be in variable range to be mated, the moment value that enters the station that can mate is adjusted with a moment value of dispatching a car, make its moment value consistent, and the moment value that enters the station that the match is successful is marked with a moment value of dispatching a car;
S3, by close for unlabelled between up direction or the adjacent station of down direction, moment value and equidirectional in variable range is entered the station a moment value and a moment value of dispatching a car mate, the moment value that enters the station that can mate is adjusted with a moment value of dispatching a car, make its moment value consistent, and the moment value that enters the station that the match is successful is marked with a moment value of dispatching a car; Described up direction or the adjacent station of down direction do not comprise the last two-stage station of up direction or down direction;
S4, according to by enter the station a moment value and the moment value of dispatching a car that mark in step S2 and step S3, original scheme running chart to be upgraded, obtain energy conservation program running chart.
2. track traffic planned train graph optimization method as claimed in claim 1, it is characterized in that, the method for the coupling in step S2 is:
S21a, the initial travel line direction determining each non-station of turning back are up direction, and adjust up stop line segment one by one first of first of direction non-station of turning back descending parking line segment from top to bottom from original scheme running chart;
S22a, with a moment value that enters the station of the descending parking line segment at each non-station of turning back for reference instant value, a moment value that enters the station for the up stop line segment that the time on same station of searching is adjacent; When find two adjacent enter the station a some moment value time, choose with reference instant value closer to the up stop line segment of a moment value that enters the station as pending up stop line segment; When find adjacent only one enter the station a some moment value time, directly choose the up stop line segment of this moment value that enters the station as pending up stop line segment;
If a moment of entering the station of the described pending up line segment that stops of S23a early than reference instant value, then calculates the first difference of a moment value of dispatching a car of enter the station a brake actuating moment value and the described pending up line segment that stops of the descending parking line segment at described each non-station of turning back;
If a moment of entering the station for the described pending up line segment that stops is later than reference instant value, then calculates the enter the station descending parking line segment at brake actuating moment value a little and each non-station of turning back of the described pending up line segment that stops and to dispatch a car the second difference of a moment value;
S24a, judge that whether described first difference or the second difference uply stop within the scope of the controllable of line segment pending, when when the described first or second difference is within the scope of described controllable, to dispatch a car a moment value according to the described pending up line segment that stops of described first difference adjustment, the moment value that the described pending up line segment that stops is dispatched a car a little is consistent with a brake actuating moment value that enters the station of the descending parking line segment at described each non-station of turning back;
According to the brake actuating moment value that the described pending up line segment that stops of described second difference adjustment enters the station a little, the brake actuating moment value that the described pending up line segment that stops is entered the station a little is consistent with a moment value of dispatching a car of described descending parking line segment;
Described brake actuating moment value wherein in a S23a and S24a=moment value that enters the station and train braking process commonly use the difference of time value.
3. track traffic planned train graph optimization method as claimed in claim 1, it is characterized in that, the method for the coupling in step S2 is:
S21b, the initial travel line direction determining each non-station of turning back are down direction, and from original scheme running chart first of direction non-station of turning back from bottom to top first up stop line segment one by one descending parking line segment is adjusted;
S22b, with a moment value that enters the station of the up stop line segment at each non-station of turning back for reference instant value, a moment value that enters the station for the descending parking line segment that the time on same station of searching is adjacent; When find two adjacent enter the station a some moment value time, choose with reference instant value closer to the descending parking line segment of a moment value that enters the station as pending descending parking line segment; When find adjacent only one enter the station a some moment value time, directly choose the descending parking line segment of this moment value that enters the station as pending descending parking line segment;
The 3rd difference of a moment value if enter the station brake actuating moment value a little and the described pending descending line segment that stops that a moment of entering the station of the described pending descending line segment that stops of S23b early than reference instant value, then calculates the described up line segment that stops are dispatched a car;
If a moment of entering the station for the described pending descending line segment that stops is later than reference instant value, then calculates the enter the station up stop line segment at brake actuating moment value a little and each non-station of turning back of the described pending descending line segment that stops and to dispatch a car the 4th difference of a moment value;
S24b, judge that whether described 3rd difference or the 4th difference descendingly stop within the scope of the controllable of line segment pending, when when described 3rd difference or the 4th difference are within the scope of described controllable, according to a moment value of dispatching a car for the described pending descending line segment that stops of described 3rd difference adjustment, make a moment value of dispatching a car of the described pending descending line segment that stops consistent with a brake actuating moment value that enters the station of the up stop line segment at described each non-station of turning back;
According to the brake actuating moment value that the described pending descending line segment that stops of described 4th difference adjustment enters the station a little, the brake actuating moment value that the described pending descending line segment that stops is entered the station a little is consistent with a moment value of dispatching a car of the up stop line segment at described each non-station of turning back;
Described brake actuating moment value wherein in a S23b and S24b=moment value that enters the station and train braking process commonly use the difference of time value.
4. as claimed in claim 2 or claim 3 track traffic planned train graph optimization method, is characterized in that, the stop method of calculating of controllable scope of line segment of described pending upstream or downstream is:
Calculate the lower limit of controllable scope in the following way:
From the first maximum amount that running interval angle calculation can move to left, computing formula is: the side-play amount of minimum interval+consecutive points followed the trail of by the first maximum amount moved to left=original scheme running chart running interval-main track; The side-play amount of described consecutive points is relative to original scheme running chart, the moment value entering the station a little or dispatch a car a little after adjustment and the deviate of former moment value, if adjustment after moment value early than former moment value, then this side-play amount be on the occasion of; If the moment is later than former moment value after adjustment, then this side-play amount is negative value; If do not adjusted, then this side-play amount is zero;
From the second maximum amount that adjustment capability angle calculation can move to left, computing formula is: the second maximum amount moved to left=current maximum compressible section operation time;
To get in the first and second maximum amount moved to left smaller value as the adjustment lower limit of the described pending up line segment that stops;
Calculate the higher limit of controllable scope in the following way:
From the first maximum amount that running interval angle calculation can move to right, computing formula is: the side-play amount of minimum interval+consecutive points followed the trail of by the first maximum amount moved to right=running chart Hang workshop Ge – main track; The side-play amount of described consecutive points is relative to original scheme running chart, the moment value entering the station a little or dispatch a car a little after adjustment and the deviate of former moment value, if adjustment after moment value early than former moment value, then this side-play amount be on the occasion of; If the moment is later than former moment value after adjustment, then this side-play amount is negative value; If do not adjusted, then this side-play amount is zero;
From the second maximum amount that adjustment capability angle calculation can move to right, computing formula is: the second maximum amount moved to right=current maximum increasable section operation time;
To get in the first and second maximum amount moved to right smaller value as the adjustment upper limit of the described pending up line segment that stops.
5. track traffic planned train graph optimization method as claimed in claim 1, is characterized in that,
The method of the coupling in step S3 is:
S31a, determine that initial travel line direction is up direction, and from original scheme running chart first station of turning back in direction from top to bottom first up stop line segment one by one up stop line segment is adjusted;
S32a, with a braking moment value that enters the station of described up stop line segment for reference instant, and find adjacent station line from the reversing sense of described up stop line segment; Described adjacent station line finds dispatch a car a some moment value adjacent with described reference instant, when finding two adjacent moment value of dispatching a car, choose with reference instant value closer to the up stop line segment of a moment value of dispatching a car as pending up stop line segment; When find adjacent only one dispatch a car a some moment value time, directly choose the up stop line segment of this moment value of dispatching a car as pending up stop line segment;
S33a, determine described up stop line segment the dispatch a car some moment value of a braking moment value on described pending up stop line segment that enter the station adjustable range in time, then adjust a moment value of dispatching a car for pending up stop line segment, thus make a braking moment value that enters the station of described up stop line segment consistent with a moment value of dispatching a car of pending up stop line segment.
6. track traffic planned train graph optimization method as claimed in claim 1, it is characterized in that, the method for the coupling in step S3 is:
S31b, determine that initial travel line direction is down direction, and from original scheme running chart first station of turning back in direction from bottom to top first descending parking line segment one by one descending parking line segment is adjusted;
S32b, with a braking moment value that enters the station of described descending parking line segment for reference instant, and find adjacent station line from the reversing sense of described descending parking line segment; Described adjacent station line finds dispatch a car a some moment value adjacent with described reference instant, when finding two adjacent moment value of dispatching a car, choose with reference instant value closer to the descending parking line segment of a moment value of dispatching a car as pending descending parking line segment; When find adjacent only one dispatch a car a some moment value time, directly choose the descending parking line segment of this moment value of dispatching a car as pending descending parking line segment;
S33b, determine described descending parking line segment the dispatch a car some moment value of a braking moment value on described pending descending parking line segment that enter the station adjustable range in time, then adjust a moment value of dispatching a car for pending descending parking line segment, thus make a braking moment value that enters the station of described descending parking line segment consistent with a moment value of dispatching a car of pending descending parking line segment.
7. track traffic planned train graph optimization method as claimed in claim 1, is characterized in that, comprises the step calculating the matching rate a little that enters the station a little and dispatch a car after step S4 further,
Matching rate computing formula is:
Matching rate=(having mated enters the station a little and dispatch a car counts out/running chart in enter the station a little and dispatch a car a sum) × 100%.
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