CN103197696B - Control method of preventing stern door of river model from fast perturbation - Google Patents
Control method of preventing stern door of river model from fast perturbation Download PDFInfo
- Publication number
- CN103197696B CN103197696B CN201310119426.4A CN201310119426A CN103197696B CN 103197696 B CN103197696 B CN 103197696B CN 201310119426 A CN201310119426 A CN 201310119426A CN 103197696 B CN103197696 B CN 103197696B
- Authority
- CN
- China
- Prior art keywords
- water level
- tail
- gate
- decrease
- river model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Non-Electrical Variables (AREA)
- Barrages (AREA)
Abstract
The invention discloses a control method of preventing a stern door of a river model from fast perturbation. The method can be used for controlling the fast perturbation of the stern door in a stern door starting stage and a big target water level decreasing amplitude stage. The control method of preventing the stern door of the river model from the fast perturbation controls the opening of the stern door by introducing a step-type step-by-step opening mode in a stern door initial starting stage, carries out control on the fast perturbation of the stern door caused by a high initial water level and a low first stage target water level, and prevents the situation that water current flow is too fast to rush and damage shifting bed landform of the river model from occurring, and therefore the smooth transition of a model water level of the stern door starting stage is guaranteed. The control method of preventing the stern door of the river model from the fast perturbation divides a target water level changing process into a step-type step-by-step descending process in the big target water level decreasing amplitude stage, avoids the impact on the shifting bed landform of the river model by the water current caused by oversize target water level decreasing amplitude in a river model test process.
Description
Technical field
The invention belongs to river model test technical field, be specifically related to a kind of control method preventing stern door of river model from fast perturbation from causing water impact model landform.
Background technology
In river model test, tail water lever steady, accurately control, be one of important prerequisite ensureing model test accurate simulation natural water flow process.In river model test tail water lever control procedure, as caused tail-gate rapid perturbations because control method is improper, larger water impact will be formed, causing the havoc of model movable bed landform.The situation that this impact easily occurs in river model test has two kinds, one is in the model test incipient stage, the initial water storage level of model is higher, or be model water conservation after experiment the previous day terminates, close tail-gate, when making second day on-test, model water level is in a high position, and the target water level of on-test is lower, the unloading phase of causing, tail-gate actual water level is higher than target water level a lot, if simply automatically regulated by controller by normal mode, tail-gate certainly will be made to open fast, cause the impact to model landform.Another kind is in model generally change process, and situation about declining to a great extent more on last stage also may appear in target water level, and as after flood season, water level hurtles down.Now, do not take appropriate measures, tail-gate of leaving carries out regulable control by normal PID shaping modes automatically, because error input is comparatively large, will inevitably produce larger regulated quantity and export, cause the rapid perturbations of tail-gate, thus cause the serious impact to model movable bed landform.
So, tail-gate controller is except carrying out following the tracks of except adjustment fast to target water level change procedure under normal circumstances, keep tail-gate to control gently in tail-gate initial start up phase and the target water level stage of declining to a great extent, prevent the impact for model movable bed landform from being that tail water lever controls very important aspect as far as possible.
Summary of the invention
For prior art Problems existing, the present invention proposes a kind of control method preventing stern door of river model from fast perturbation, tail-gate rapid perturbations can be avoided the destruction of model movable bed landform.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
Prevent a control method for stern door of river model from fast perturbation, the unloading phase of for tail-gate, comprise step:
S1, tail-gate unloading phase, tail-gate controller obtains the current actual water level of river model;
S2, judge the size of the target water level of current actual water level and first stage, if current actual water level is higher than target water level, then adopt staged open mode unlatching tail-gate step by step, described staged staged step by step open mode unlatching tail-gate refers to, every Δ T time, tail-gate aperture is increased Δ K%, and time interval Δ T and aperture step delta K% is the empirical value according to actual river model size and the setting of groove accumulation of energy power; If current time water level is lower than target water level, perform step S4;
S3, whole tail-gate unloading phase, tail-gate controller detects the current actual water level of river model in real time, once detect that current actual water level is lower than target water level, then stops staged open mode step by step, then performs step S4;
S4, adopts automatic shaping modes to carry out regulable control to tail-gate.
User controls the opening speed of tail-gate by setting-up time interval delta T and aperture step delta K%.The setting of time interval Δ T and aperture step delta K% will consider the many factors such as actual river model size, groove accumulation of energy power, the time interval Δ T value of adjusting suitable for practical object and aperture step delta K% value, could guarantee water level smooth transition not damage model movable bed landform tail-gate unloading phase like this, and shorten transient process as far as possible.
Time interval Δ T and aperture step delta K% can adopt and adjust with the following method:
(1) set initial value: time interval Δ T=10s, aperture step delta K%=2%, the current real time water level of river model is maintained peak level, and the target water level of first stage is set to lowest working water level;
(2) increase tail-gate aperture step by step according to the time interval Δ T set and aperture step delta K%, and observe tail water lever change procedure, rule of thumb do following judgement: if water velocity is too fast, river model landform is caused and washes away, then perform step (3); If water flow velocity is spent slowly, water level decreasing overlong time, then perform step (4); If water velocity is suitable, water flow stationary, do not cause river model landform and obviously wash away, the time interval Δ T now set and aperture step delta K% is the preferred time interval and aperture step value;
(3) time interval Δ T is increased or/and reduce aperture step delta K%, such as, adjustable time interval Δ T=15s, Δ K% is constant, then, repeats step (2);
(4) reduce time interval Δ T or/and after increasing aperture step delta K%, repeat step (2).
Usually, aperture step delta K% span is 2 ~ 5%, and time interval Δ T span is 10 ~ 30s.
When tail-gate is turnover plate type tail-gate, before in employing staged, open mode opens tail-gate step by step, according to the current actual water level of river model, directly turnover plate type tail-gate aperture is set to initial opening K0, namely, directly tail-gate is opened to its outlet concordant with the current actual water level of river model, and then adopts staged open mode unlatching tail-gate step by step, the empty stroke time that tail-gate is opened can be reduced.
Described initial opening K0=(arccos (h/H)/90) * 100, wherein, h is the current actual water level of river model; H is tail-gate height, and 90 is the angle stroke of tail-gate; K0 is relative opening degree, represents with full stroke number percent.
Another kind prevents the control method of stern door of river model from fast perturbation, for preventing the control of tail-gate rapid perturbations when the target water level range of decrease is larger in river model test process.In river model test, the situation that the target water level range of decrease is larger may be there is, if now still by automatic PID shaping modes, the rapid perturbations of tail-gate will be caused, for above-mentioned situation, can adopt and control tail-gate rapid perturbations with the following method:
S1, when the target water level of river model changes, the target water level range of decrease Δ H in stage and the classification water level maximum permission range of decrease Δ H of setting before and after judging
maxsize, the maximum permission range of decrease of described classification water level and classification water level range of decrease Δ H
max, it is the empirical value according to actual river model size and the setting of groove accumulation of energy power;
S2, if target water level range of decrease Δ H is not more than classification water level range of decrease Δ H
max, then by the target water level H of current generation
1be set to control objectives water level H
oBJ, that is, H
oBJ=H
1;
S3, if target water level range of decrease Δ H is greater than classification water level range of decrease Δ H
max, then to the target water level classification of current generation, and according to classification water level range of decrease Δ H
maxcontrol objectives water level H at different levels is set
oBJi, tail-gate controller regulates the water level range of decrease step by step according to control objectives water level at different levels.
Above-mentioned control objectives water level at different levels is as follows:
Wherein, H
oBJibe i-th grade of control objectives water level; H
0for target water level on last stage, H
1for the target water level of current generation; Δ H
maxfor the classification water level range of decrease; I is classification numbering, i=1,2 ..., n, n are the quantity of all classifications, n=[Δ H/ Δ H
max], [] rounds on representing;
For control objectives water level at different levels, tail-gate controller regulates the water level range of decrease as follows step by step:
For the control objectives water level of front n-1 level, every Δ T
0the range of decrease of time water level is Δ H
max; Directly H is set to for the control objectives water level of n-th grade
1, namely this grade of water level range of decrease is Δ H-(n-1) and Δ H
max, described time interval Δ T
0it is the empirical value according to actual river model size and the setting of groove accumulation of energy power.
User can according to many factors setting-up time interval delta T such as actual river model size, groove accumulation of energy power
0with classification water level range of decrease Δ H
max.
Time interval Δ T
0with classification water level range of decrease Δ H
maxcan adopt and adjust with the following method:
(1) initial value is set: time interval Δ T
0=5s, classification water level range of decrease Δ H
max=5mm, phase targets water level range of decrease Δ H=30mm before and after setting;
(2) according to the time interval Δ T of setting
0with classification water level range of decrease Δ H
maxregulate the water level range of decrease step by step, and observe tail water lever change, rule of thumb do following judgement: if water velocity is too fast, the landform of river model is impacted, then perform step (3); If water flow velocity is spent slowly, then perform step (4); If water velocity is suitable, then the time interval Δ T now set
0with classification water level range of decrease Δ H
maxbe preferred time interval Δ T
0with classification water level range of decrease Δ H
max;
(3) time interval Δ T is increased
0or/and reduce classification water level range of decrease Δ H
maxafter, repeat step (2);
(4) time interval Δ T is reduced
0or/and increase classification water level range of decrease Δ H
maxafter, repeat step (2).
Usually, time interval Δ T
0span is 5 ~ 25s, classification water level range of decrease Δ H
maxspan is 5 ~ 20mm.
In the present invention, the time interval, aperture step-length and the classification water level range of decrease are all the empirical values according to actual conditions setting, and its value can be continued to optimize according to factors such as concrete model size, groove accumulation of energy power in experimentation.
The present invention is tail-gate unloading phase, when target water level higher than the first stage of the initial water level of model, introduce staged open mode step by step, until the actual water level of river model is lower than the target water level of first stage, to because initial water level is higher, the lower caused tail-gate of first stage target water level opens fast and controls, avoid the too fast situation washing out river model movable bed landform of current to occur, thus the smooth transition of model water level unloading phase of ensureing tail-gate.
The present invention is when in model test process, target water level changes, when the target water level range of decrease exceedes setting, by the process that the procedure decomposition that target water level changes becomes staged to decline step by step, till water level is down to current generation target water level, the current caused because the target water level range of decrease is excessive in river model test process can be avoided the impact of model movable bed landform.
Accompanying drawing explanation
Tail-gate staged unloading phase that Fig. 1 being opens control procedure schematic diagram step by step;
Fig. 2 is the water level decreasing amplitude control procedure schematic diagram in model experiment process when the target water level range of decrease is excessive;
Fig. 3 is the relation of turnover plate type tail-gate initial opening and current actual water level.
Embodiment
The present invention relates to following term:
Tail-gate aperture: tail-gate opening degree, usually represent with the percentage of total travel, as tail-gate standard-sized sheet, then aperture is 100%; Tail-gate complete shut-down, then aperture is 0%.
Tail-gate closure: tail-gate closes degree, and contrary with tail-gate aperture implication, usually represent with the percentage of total travel, as tail-gate complete shut-down, closure is 100%, tail-gate standard-sized sheet, and closure is 0%.
Tail-gate initial opening: when regulable control starts, the aperture that tail-gate is directly opened.
Below in conjunction with accompanying drawing, the present invention is elaborated.
Tail-gate staged unloading phase that Fig. 1 being opens control procedure schematic diagram step by step, is described in detail to for the tail-gate rapid perturbations control method unloading phase of tail-gate below in conjunction with Fig. 1.
Tail-gate unloading phase, the control model unloading phase that tail-gate controller entering tail-gate automatically, is first set to staged open mode step by step, forbids the automatic PID regulatory function of tail-gate simultaneously by tail-gate.
For turnover plate type tail-gate, for meeting the requirement of different experiments, usual tail-gate does higher, a part is exceeded than river model peak level, for preventing the initial opening phase turnover plate type tail-gate blank operation time before sluicing oversize, according to the current actual water level of river model, directly turnover plate type tail-gate aperture can be set to initial opening K0, that is, make turnover plate type tail-gate to go out head piece substantially concordant with the current actual water level of river model; And then enter the staged open mode step by step of tail-gate, the opening time of turnover plate type tail-gate can be reduced like this.Initial opening is determined by the current actual water level of river model and tail-gate height.
Open mode can see Fig. 1 step by step for the staged of tail-gate, and detailed process is as follows:
Tail-gate controller obtains the current actual water level of river model, namely the initial water level in Fig. 1, if current actual water level is higher than the target water level of first stage, the target water level of first stage is shown in the target water level in Fig. 1, then slowly open tail-gate step by step by the time interval set and aperture step-length, that is, every Δ T time, tail-gate aperture is increased Δ K%, total aperture stroke is 100%.Tail-gate is opened gradually by above-mentioned step-wise manner, and water level is slowly reduced.Meanwhile, tail-gate controller detects the current actual water level of river model in real time, once current actual water level is lower than the target water level of first stage, namely stops the staged open mode step by step of tail-gate, tail-gate is set to automatic PID shaping modes, thus the smooth transition unloading phase of completing tail-gate.Namely the automatic shaping modes of tail-gate independently carries out regulable control to tail-gate aperture by tail-gate controller, stable and conciliation river model water level.The automatic shaping modes of tail-gate adopts PID control model usually.
Time interval Δ T step by step in open mode of the staged of tail-gate and aperture step delta K% all can set according to actual conditions, and user is by setting Δ T and Δ K% value control tail-gate opening speed.In practice, the setting of Δ K% and Δ T value will consider the many factors such as actual river model size, groove accumulation of energy power, the Δ K% that generally need adjust suitable according to practical object and Δ T value, could water level smooth transition be guaranteed in tail-gate open stage and not while damage model movable bed landform, shorten transient process as far as possible.Usual Δ K% span is 2% ~ 5%, and Δ T span is 10 ~ 30s.
Specifically can adopt the Δ T and Δ K% value adjusting suitable with the following method:
(1) set initial value: Δ K%=2%, Δ T=10s, river model water level maintains peak level, and target water level is set as lowest working water level;
(2) increase tail-gate aperture step by step by the time interval Δ T set and aperture step delta K%, in tail-gate opening process, observe the change procedure of tail water lever, if water velocity is too fast, river model landform is caused and washes away, then perform step (3); If water flow velocity is spent slowly, water level decreasing overlong time, then perform step (4); If water flow stationary, water level steadily declines, and does not cause landform and obviously washes away, then the time interval Δ T now set and aperture step delta K% is the preferred time interval and aperture step value;
(3) time interval Δ T is increased or/and reduce aperture step delta K%, such as, adjustable time interval Δ T=15s, Δ K% is constant, repeats step (2);
(4) reduce time interval Δ T or/and increase aperture step delta K%, repeat step (2).
Fig. 2 is the water level decreasing amplitude control procedure schematic diagram in model test process interstage, and wherein dotted line is the target water level step control graph of current generation.Below in conjunction with Fig. 2, the quick method for controlling opening and closing of tail-gate for the model test process interstage is described in detail.
When the target water level of river model changes, when entering next stage, first, the front and back target water level range of decrease Δ H in stage and the classification water level range of decrease Δ H of setting is judged
maxsize, the range of decrease Δ H=H of front and back phase targets water level
0-H
1, H
0for target water level on last stage, H
1for current generation target water level; Classification water level range of decrease Δ H
maxalso for allowing the maximum range of decrease of classification of target water level.
If Δ H≤Δ H
max, then by the target water level H of current generation
1be set to control objectives water level H
oBJi, water level is directly down to H by tail-gate controller
1.
If Δ H > Δ H
max, namely, the range of decrease of phase targets water level exceedes setting Δ H
max, tail-gate controller is according to classification water level range of decrease Δ H
maxto the target water level classification of current generation, point number of stages n=[Δ H/ Δ H
max], [] rounds on representing, control objectives water level at different levels is as follows:
Wherein, H
oBJibe i-th grade of control objectives water level; H
0for target water level on last stage, H
1for the target water level of current generation; Δ H
maxfor the classification water level range of decrease; I is classification numbering, i=1,2 ..., n, n are the quantity of all classifications.
For the control objectives water level of front n-1 level, every Δ T
0the range of decrease of time water level is Δ H
max; For the control objectives water level of n-th grade, be directly set to H
1, namely this grade of water level range of decrease is Δ H-(n-1) and Δ H
max.
Time interval Δ T
0with classification water level range of decrease Δ H
maxaccording to actual river model size and the setting of groove accumulation of energy power, usual Δ T
0span is 5 ~ 25s, Δ H
maxspan is 5 ~ 20mm.
Specifically can adopt the Δ T adjusting suitable with the following method
0with Δ H
maxvalue:
(1) initial value is set: Δ H
max=5mm, Δ T
0=5s; Before and after setting, the phase targets water level range of decrease is 30mm;
(2) by the time interval Δ T of setting
0with classification water level range of decrease Δ H
maxregulate the water level range of decrease step by step, observe tail-gate adjustment process, if tail-gate is opened, amplitude is excessive causes current too fast impact river model landform, performs step (3); Spend slowly if tail-gate opens the too small water flow velocity that causes of amplitude, perform step (4); If current transition is steady, and it is suitable to regulate the speed, then the time interval Δ T of this setting
0with classification water level range of decrease Δ H
maxbe the suitable time interval and the classification water level range of decrease;
(3) increase time interval Δ T and/or reduce classification water level range of decrease Δ H
max, repeat step (2);
(4) reduce time interval Δ T and/or increase classification water level range of decrease Δ H
max, repeat step (2).
Fig. 3 is the relation of the current actual water level of turnover plate type tail-gate initial opening and river model, the initial water level in the current actual water level of river model and Fig. 3.Describe in detail below in conjunction with Fig. 3 and reduce turnover plate type tail-gate open-interval method, the method can reduce the open stage empty stroke time of turnover plate type tail-gate.
Before usual experiment starts, for tail-gate generally all can be closed by river model water conservation, river model maintains certain altitude water level.Because the height of turnover plate type tail-gate closedown is usually above model water level, so turnover plate type tail-gate open stage has one section of idle motion, now tail-gate goes out head piece higher than model water level, although tail-gate is being opened gradually, this one-phase can not form overflow, sees Fig. 3.If from tail-gate off-position, according to staged step by step slowly open mode open tail-gate, the tail-gate opening time certainly will be increased.
The initial opening K0 of tail-gate can obtain according to initial water level h and tail-gate height H:
K0＝(arccos(h/H)/90)*100
Wherein, 90 is the angle stroke range of tail-gate; K0 is relative opening degree, represents with full stroke number percent, and each parameter relation is shown in Fig. 3.
In order to accelerate effective adjustment process of turnover plate type tail-gate, turnover plate type tail-gate unloading phase, first the initial opening K0 of tail-gate is obtained according to the initial water level of river model, then direct tail-gate aperture is set to K0 after, adopt staged slow open mode step by step again, the tail-gate opening time can be effectively reduced like this.
For flat sliding door with revolve page tail-gate and generally there is not idle motion problem, so idle motion process need not be considered in tail-gate open stage, staged open mode step by step directly can be entered.
Application of the present invention is further illustrated below in conjunction with two embodiments.
Embodiment 1, the anti-disturbance of river model turnover plate type tail-gate controls
Turnover plate type tail-gate due to structure simple, good airproof performance, it is convenient to control, and is one of conventional tail-gate form of river model test.
Prevention turnover plate type tail-gate opens the control method of disturbance fast, and concrete steps are as follows:
(1) obtain the current actual water level of river model, and obtain tail-gate initial opening K0:
K0＝(arccos(h/H)/90)*100
Wherein, h is the current actual water level of river model, i.e. initial water level; H is tail-gate height, and 90 is the angle stroke of tail-gate; K0 is relative opening degree, represents with full stroke number percent, and each parameter relation is shown in Fig. 3.
(2) tail-gate aperture is directly placed in initial opening K0.
(3) detect river model current actual water level, and judge current actual water level whether higher than the target water level of first stage:
If lower than target water level, tail-gate controller is set to automatic shaping modes, enters the control procedure of step (4);
If higher than target water level, then adopt staged open mode unlatching tail-gate step by step, namely, by time interval Δ T and the aperture step delta K% of setting, open tail-gate step by step, model water level can slowly decline thereupon, until the current actual water level of river model is lower than the target water level of first stage, terminate staged open mode step by step, then, perform the control procedure of step (4).
(4) tail-gate controller presses PID pattern from motion tracking and adjustment model water level;
(5) when phase change appears in the process of discharging water, the range of decrease Δ H of phase targets water level before and after differentiating:
If the target water level range of decrease is greater than the classification water level range of decrease Δ H of setting
max, then according to classification water level range of decrease Δ H
maxcarry out classification to current generation target water level, obtain control objectives water level at different levels, tail-gate controller reduces water level step by step according to control objectives water level at different levels, that is, by the time interval Δ T of setting
0with classification water level range of decrease Δ H
maxreduce water level step by step, until the control objectives water level of tail-gate controller equals current generation target water level;
If the target water level range of decrease is not more than the classification water level range of decrease Δ H of setting
max, directly current generation target water level is set to control objectives water level H
1, the direct according to target water level H of tail-gate controller
1carry out regulable control.
Embodiment 2, the anti-disturbance of the flat sliding door of river model controls
Prevent dull and stereotyped plug-type tail-gate to open the control method of disturbance fast, concrete steps are as follows:
(1) detect river model current actual water level, and judge current actual water level whether higher than the target water level of first stage:
If lower than target water level, tail-gate controller is set to automatic shaping modes, enters the control procedure of step (2);
If higher than target water level, then adopt staged open mode unlatching tail-gate step by step: by time interval Δ T and the aperture step delta K% of setting, increase tail-gate aperture step by step, river model water level can slowly decline thereupon, until the current actual water level of river model is lower than terminating slow open mode during target water level, then enter the control procedure of step (2);
(2) tail-gate controller presses PID pattern from motion tracking and adjustment model water level;
(3) when phase change appears in the process of discharging water, the range of decrease Δ H of phase targets water level before and after differentiating:
If the target water level range of decrease is greater than the classification water level range of decrease Δ H of setting
max, according to classification water level range of decrease Δ H
maxcarry out classification to current generation target water level, obtain control objectives water level at different levels, tail-gate controller regulates water level step by step according to control objectives water level at different levels, that is, by the time interval Δ T of setting
0with classification water level range of decrease Δ H
maxreduce water level step by step, until the control objectives water level of tail-gate controller equals current generation target water level;
If the target water level range of decrease is less than the classification water level range of decrease Δ H of setting
max, directly by current generation target water position H
1for control objectives water level, the direct according to target water level H of tail-gate controller
1carry out regulable control.
Claims (8)
1. prevent a control method for stern door of river model from fast perturbation, the unloading phase of for tail-gate, it is characterized in that, comprise step:
S1, tail-gate unloading phase, tail-gate controller obtains the current actual water level of river model;
S2, judge the size of the target water level of current actual water level and first stage, if current actual water level is higher than target water level, then adopt staged open mode unlatching tail-gate step by step, described staged step by step open mode unlatching tail-gate refers to, every Δ T time, tail-gate aperture is increased Δ K%, and time interval Δ T and aperture step delta K% is the empirical value according to actual river model size and the setting of groove accumulation of energy power; If current time water level is lower than target water level, perform step S4;
S3, whole tail-gate unloading phase, tail-gate controller detects the current actual water level of river model in real time, once detect that current actual water level is lower than target water level, then stops staged open mode step by step, then performs step S4;
S4, adopts automatic shaping modes to carry out regulable control to tail-gate.
2. prevent the control method of stern door of river model from fast perturbation as claimed in claim 1, it is characterized in that:
The span of described time interval Δ T is 10 ~ 30s, and the span of described aperture step delta K% is 2 ~ 5%.
3. prevent the control method of stern door of river model from fast perturbation as claimed in claim 1 or 2, it is characterized in that:
Described time interval Δ T and aperture step delta K% adjusts as follows:
(1) initial value of setting-up time interval delta T and aperture step delta K%, the current actual water level of river model is maintained peak level, and the target water level of first stage is set to lowest working water level;
(2) tail-gate aperture is increased step by step according to the time interval Δ T set and aperture step delta K%, and observe tail water lever change procedure, rule of thumb do following judgement: if water velocity is too fast, the landform of river model is impacted, then perform step (3); If water flow velocity is spent slowly, then perform step (4); If water velocity is suitable, the time interval Δ T now set and aperture step delta K% is the preferred time interval and aperture step value;
(3) increase time interval Δ T or/and after reducing aperture step delta K%, repeat step (2);
(4) reduce time interval Δ T or/and after increasing aperture step delta K%, repeat step (2).
4. prevent the control method of stern door of river model from fast perturbation as claimed in claim 1, it is characterized in that:
To turnover plate type tail-gate, enable staged step by step open mode open before tail-gate, according to the current actual water level of river model, directly turnover plate type tail-gate aperture is set to initial opening K0, described initial opening K0=(arccos (h/H)/90) * 100, wherein, h is the current actual water level of river model; H is tail-gate height, and 90 is the angle stroke of tail-gate; K0 is relative opening degree, represents with full stroke number percent.
5. prevent a control method for stern door of river model from fast perturbation, for when stage target water level changes in river model test process, it is characterized in that, comprise step:
S1, when the target water level of river model changes, the target water level range of decrease Δ H in stage and the classification water level range of decrease Δ H of setting before and after judging
maxsize, described classification water level range of decrease Δ H
maxit is the empirical value according to actual river model size and the setting of groove accumulation of energy power;
S2, if target water level range of decrease Δ H is not more than classification water level range of decrease Δ H
max, then the target water level of current generation is set to control objectives water level, tail-gate controller regulates the water level range of decrease according to control objectives water level;
S3, if target water level range of decrease Δ H is greater than classification water level range of decrease Δ H
max, then to the target water level classification of current generation, and according to classification water level range of decrease Δ H
maxcontrol objectives water level H at different levels is set
oBJi, tail-gate controller regulates the water level range of decrease step by step according to control objectives water level at different levels.
6. prevent the control method of stern door of river model from fast perturbation as claimed in claim 5, it is characterized in that:
Described control objectives water levels at different levels are as follows:
Wherein, H
oBJibe i-th grade of control objectives water level; H
0for target water level on last stage, H
1for the target water level of current generation; Δ H
maxfor the classification water level range of decrease; I is classification numbering, i=1,2 ..., n, n are the quantity of all classifications, n=[Δ H/ Δ H
max], [] rounds on representing;
For control objectives water level at different levels, tail-gate controller regulates the water level range of decrease as follows step by step:
For the control objectives water level of front n-1 level, every Δ T
0the range of decrease of time water level is Δ H
max; Directly H is set to for the control objectives water level of n-th grade
1, namely this grade of water level range of decrease is Δ H-(n-1) Δ H
max, time interval Δ T
0it is the empirical value according to actual river model size and the setting of groove accumulation of energy power.
7. prevent the control method of stern door of river model from fast perturbation as claimed in claim 6, it is characterized in that:
Described time interval Δ T
0span be 5 ~ 25s, and, described classification water level range of decrease Δ H
maxspan be 5 ~ 20mm.
8. prevent the control method of stern door of river model from fast perturbation as claimed in claim 6, it is characterized in that:
Described time interval Δ T
0with classification water level range of decrease Δ H
maxadjust as follows:
(1) setting-up time interval delta T
0with classification water level range of decrease Δ H
maxinitial value, the phase targets water level range of decrease before and after setting;
(2) according to the time interval Δ T of setting
0with classification water level range of decrease Δ H
maxregulate the water level range of decrease step by step, and observe tail water lever change, rule of thumb do following judgement: if water velocity is too fast, the landform of river model is impacted, then perform step (3); If water flow velocity is spent slowly, then perform step (4); If water velocity is suitable, then the time interval Δ T now set
0with classification water level range of decrease Δ H
maxbe time interval Δ T
0with classification water level range of decrease Δ H
max;
(3) time interval Δ T is increased
0or/and reduce classification water level range of decrease Δ H
maxafter, repeat step (2);
(4) time interval Δ T is reduced
0or/and increase classification water level range of decrease Δ H
maxafter, repeat step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310119426.4A CN103197696B (en) | 2013-04-08 | 2013-04-08 | Control method of preventing stern door of river model from fast perturbation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310119426.4A CN103197696B (en) | 2013-04-08 | 2013-04-08 | Control method of preventing stern door of river model from fast perturbation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103197696A CN103197696A (en) | 2013-07-10 |
| CN103197696B true CN103197696B (en) | 2015-05-13 |
Family
ID=48720359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310119426.4A Expired - Fee Related CN103197696B (en) | 2013-04-08 | 2013-04-08 | Control method of preventing stern door of river model from fast perturbation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103197696B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284337B (en) * | 2020-11-25 | 2021-08-03 | 武汉大学 | River model multi-parameter measuring device and walking control method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038715A (en) * | 1998-07-23 | 2000-02-08 | Ina:Kk | Automatic dam gate operation support device |
| JP2000122726A (en) * | 1998-10-14 | 2000-04-28 | Matsushita Electric Ind Co Ltd | Dam water level control method and dam gate automatic control system using the dam water level control method |
| JP2004293199A (en) * | 2003-03-27 | 2004-10-21 | Jfe Engineering Kk | Method for controlling water level and method for supporting control of water level |
| CN101403918A (en) * | 2008-11-10 | 2009-04-08 | 中国水利水电科学研究院 | Automatic control device and control method for maritime works model tide simulation |
| CN101551677A (en) * | 2009-05-19 | 2009-10-07 | 四川中鼎电气控制有限责任公司 | Water level automatic control method |
| CN101561344A (en) * | 2009-05-26 | 2009-10-21 | 长江水利委员会长江科学院 | Experimental water tank without tail-gate for hydraulics and mud and sand dynamics |
| CN101935996A (en) * | 2010-09-08 | 2011-01-05 | 中国水利水电科学研究院 | Method and device for automatically controlling water levels of multiple channel sections |
| CN202003238U (en) * | 2010-12-24 | 2011-10-05 | 广州南珠电控技术有限公司 | Gate control device |
-
2013
- 2013-04-08 CN CN201310119426.4A patent/CN103197696B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038715A (en) * | 1998-07-23 | 2000-02-08 | Ina:Kk | Automatic dam gate operation support device |
| JP2000122726A (en) * | 1998-10-14 | 2000-04-28 | Matsushita Electric Ind Co Ltd | Dam water level control method and dam gate automatic control system using the dam water level control method |
| JP2004293199A (en) * | 2003-03-27 | 2004-10-21 | Jfe Engineering Kk | Method for controlling water level and method for supporting control of water level |
| CN101403918A (en) * | 2008-11-10 | 2009-04-08 | 中国水利水电科学研究院 | Automatic control device and control method for maritime works model tide simulation |
| CN101551677A (en) * | 2009-05-19 | 2009-10-07 | 四川中鼎电气控制有限责任公司 | Water level automatic control method |
| CN101561344A (en) * | 2009-05-26 | 2009-10-21 | 长江水利委员会长江科学院 | Experimental water tank without tail-gate for hydraulics and mud and sand dynamics |
| CN101935996A (en) * | 2010-09-08 | 2011-01-05 | 中国水利水电科学研究院 | Method and device for automatically controlling water levels of multiple channel sections |
| CN202003238U (en) * | 2010-12-24 | 2011-10-05 | 广州南珠电控技术有限公司 | Gate control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103197696A (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109524974B (en) | Power grid primary frequency modulation control method and system based on battery energy storage power supply | |
| CN103967702B (en) | A kind of double-fed wind power generator full blast speed frequency response controlling method | |
| CN103047670B (en) | Direct blowing type double-inlet and double-outlet steel ball grinding energy conservation optimization system and method thereof | |
| CN103399486A (en) | Temperature optical energy-saving control method for plastic dryer | |
| CN110360540B (en) | Boiler main steam temperature control method for power grid AGC load instruction frequent fluctuation | |
| CN104595885A (en) | Control method of minimum-flow recirculation valve of water supply pump of power station boiler | |
| CN107728464A (en) | Boiler optimization control system and method based on integral parameter dynamic adjustment | |
| CN104534145B (en) | Position controlling method of EOV (Electrically Operated Valve) | |
| CN103197696B (en) | Control method of preventing stern door of river model from fast perturbation | |
| CN110912207A (en) | Hydropower station in-plant economic operation method and system considering multi-branch-plant constraint | |
| CN110687792A (en) | CO after chemical adsorption combustion2Anti-smoke disturbance fuzzy control method of trapping system | |
| CN111045321B (en) | Method for coordinately controlling embedded internal model controller under deep peak regulation | |
| CN105700357B (en) | Method of Boiler Combustion Control System based on multivariable PID-PFC | |
| CN105134312A (en) | Method for determining running valve position of subcritical nozzle governing steam turbine | |
| CN103700870B (en) | A kind of water management closed-loop control method for fuel cell | |
| CN103744291A (en) | AGC (Automatic Generation Control) logic control system and method based on CPS (Control Performance Standard) | |
| CN102278150A (en) | Optimal control method for pressure constant value of sliding pressure operation unit under AGC (automatic gain control) mode | |
| CN110107407B (en) | Method for improving gas-steam combined cycle efficiency by optimizing IGV (integrated gas insulated switchgear) control of gas turbine | |
| CN101929736A (en) | Temperature control method for heating furnace based on heat accumulating type nozzle | |
| CN105134311A (en) | Running valve position determining method for supercritical/ultra-supercritical nozzle governing turbine | |
| CN107893988A (en) | Heat regenerative system carbonated drink optimal control method under Large-scale fire-electricity unit depth peak regulation | |
| CN109524688B (en) | Hydrogen injection valve driving control system and method for proton exchange membrane fuel cell stack | |
| CN106127351A (en) | A kind of blast funnace hot blast stove initially burns producer gas flow optimization system | |
| CN116382200A (en) | Full-load self-stabilization system of unit and operation method thereof | |
| CN103050999A (en) | AGC (automatic generation control) mode-based identical unit load dispatch sequencing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20170408 |