CN102497941B

CN102497941B - Control method for a processing line for a stretched rolling stock

Info

Publication number: CN102497941B
Application number: CN201080042639.6A
Authority: CN
Inventors: M.库尔茨; K.魏因齐尔
Original assignee: Siemens AG
Current assignee: The German Co., Ltd of primary metal science and technology
Priority date: 2009-09-23
Filing date: 2010-09-17
Publication date: 2014-10-15
Anticipated expiration: 2030-09-17
Also published as: EP2301685A1; EP2480351B1; WO2011036093A2; WO2011036093A3; PL2480351T3; CN102497941A; EP2480351A2

Abstract

The invention relates to a processing line for a stretched rolling stock, having an upstream and a downstream system component directly sequentially run through by the rolling stock. One each of the system components is implemented as a production line or as a system component different from the production line. A control device has at least one final size provided thereto for segments of the rolling stock running through the treatment line, said size being derived from a desired end state in each case, comprising the corresponding segment of the rolling stock after running through the downstream system component. The control device implements at least one determinant of a setting parameter outputting a setting parameter to a device affecting at least one state of at least one of the segments of the rolling stock. The setting parameter is output at a point in time at which the at least one segment is present in the upstream line component. When determining the setting parameter, the determinant of the setting parameter considers expected states of the at least one segment of the rolling stock as determined using a model, said states lying within a prognosis horizon of the corresponding setting parameter determinant. The prognosis horizon is determined such that the setting parameter determinant considers at least one state predicting for the at least one segment of the rolling stock when determining the setting parameter output thereby, said state being expected of the at least one segment of the rolling stock in the downstream system component.

Description

Control method for the treatment facility of the rolled piece that extends

Technical field

The present invention relates to a kind of for the rolled piece that extends the especially control method of the treatment facility of banded rolled piece,

-wherein said treatment facility at least has a preposition part of appliance and a rearmounted part of appliance, and described part of appliance is directly sequentially passed by rolled piece,

-wherein said preposition or rearmounted part of appliance is configured to finishing mill line, in described finishing mill line, in the situation that reducing cross section, rolled piece is rolled, and another part of appliance is configured to the part of appliance different from described finishing mill line,

-for the section of the rolled piece passing from described treatment facility, give for the control device of described treatment facility at least one final parameter given in advance correspondingly,

-wherein said corresponding final parameter is derived from corresponding desired end-state, and the corresponding section of described rolled piece should have described end-state through after rearmounted part of appliance.

In addition, the present invention relates to a kind of computer program with machine code, described machine code can directly make described control device carry out such control method by carrying out and carry out described machine code by described control device for the rolled piece especially control device of the treatment facility of banded rolled piece.

In addition, the present invention relates to a kind of control device of the treatment facility for the especially banded rolled piece of rolled piece, this control device so forms, and it is in operation and carries out such control method.

Background technology

The theme that beginning is mentioned is well-known.Pure exemplarily with reference to DE 101 56 008 A1 corresponding US 7,197,802 B2 in other words at this.Also can mention in this respect EP 1 596 999 B1 corresponding US 7,251,971 B2 and US 7,310,981 B2 in other words.

For the control method of prior art, conventionally control individually each part of appliance.If-part of appliance that exemplarily pure-described preposition part of appliance is configured to finishing mill line and described postposition is configured to cooling section, conventionally so move so in the prior art described finishing mill line, make the section in the exit at finishing mill line (porch of=cooling section) of rolled piece there is predetermined finishing temperature.In described cooling section, then so carry out section cooling of described rolled piece, make the section of described rolled piece leave described cooling section with predetermined coiling temperature.The coordination of the operation of described two parts of appliance is only carried out in the prior art in the following manner, and the mode of measuring technique of take detects the finishing temperature of corresponding section and is described cooling section described finishing temperature given in advance as the initial value for corresponding section.

The processing mode of prior art above-mentioned has represented a kind of progress with respect to traditional prior art.Because for this prior art, carry out the control of the striding equipment parts for the treatment of facility.Especially can beat-type ground adjust the temperature that the model by means of striding equipment parts expected is tried to achieve for each section of rolled piece.By means of corresponding expected temperature and corresponding rated temperature, correspondingly try to achieve in the prior art controlled quentity controlled variable, this controlled quentity controlled variable should be exported to the device just state of the corresponding section of described rolled piece being affected.

At this, by means of controlled quentity controlled variable, ask for device (Stellgr enersteller) and try to achieve the controlled quentity controlled variable for single assembly, described controlled quentity controlled variable is asked for device can be configured to conventional adjuster, such as being configured to P, PI or PID adjuster.From mentioned prior art, also know, described adjuster is configured to estimate adjuster, and this is estimated adjuster and has the horizontal line of estimating.Especially last-mentioned processing mode has caused good result.But the design that last-mentioned processing mode is especially asked for about controlled quentity controlled variable need to improve.Task of the present invention is that the controlled quentity controlled variable being improved is accordingly asked for.

Summary of the invention

This task completes by a kind of control method of the treatment facility for the rolled piece that extends,

-wherein for the section of the rolled piece passing from described treatment facility, give for the control device of described treatment facility at least one final parameter given in advance correspondingly,

-wherein said corresponding final parameter is derived from corresponding desired end-state, and the corresponding section of described rolled piece should have described end-state through after rearmounted part of appliance,

-wherein said control device is realized at least one controlled quentity controlled variable and is asked for device,

-wherein said controlled quentity controlled variable is asked for the device output controlled quentity controlled variable that device is affected the state of at least one section in the section of the rolled piece through treatment facility at least one,

-wherein said controlled quentity controlled variable ask for device at described at least one section the moment in described preposition part of appliance export described controlled quentity controlled variable,

-wherein when asking for described controlled quentity controlled variable, described controlled quentity controlled variable ask for device consider described rolled piece at least one section under model supports, try to achieve expect in corresponding controlled quentity controlled variable, ask for the state within the first time span of forecast of device,

-wherein so determine described the first time span of forecast, make described controlled quentity controlled variable ask for device and when the controlled quentity controlled variable of asking for by its output, consider that at least one is the state that at least one section of described rolled piece is predicted, expects this state concerning at least one section of described rolled piece in the part of appliance of described postposition.Also propose a kind of control device of the treatment facility for rolled piece, wherein, this control device so forms, make its be in operation carry out described control method control method in steps.

By the present invention, the supplementary of the feature of mentioning as beginning stipulate,

-described control device is realized at least one controlled quentity controlled variable and is asked for device,

-described controlled quentity controlled variable is asked for the device output controlled quentity controlled variable that device is affected the state of at least one section in the section of the rolled piece passing from treatment facility at least one,

-described controlled quentity controlled variable ask for device at described at least one section the moment in described preposition part of appliance export described controlled quentity controlled variable,

-when asking for described controlled quentity controlled variable, described controlled quentity controlled variable is asked for device and consider the state within first time span of forecast in corresponding adjuster of expecting of trying to achieve of at least one section of described rolled piece under model supports,

-so definite described the first time span of forecast, make described controlled quentity controlled variable ask for device and when the controlled quentity controlled variable of asking for by its output, consider that at least one is the state that at least one section of described rolled piece is predicted, expects this state concerning at least one section of described rolled piece in the part of appliance of described postposition.

In a kind of possible design of the present invention, stipulate,

Each section that-described control device is described rolled piece is realized respectively a controlled quentity controlled variable and is asked for device, this controlled quentity controlled variable is asked for device and in the whole process of passing of the corresponding section of described rolled piece, as local controlled quentity controlled variable, is asked for device keep being coupled on the corresponding section of described rolled piece from treatment facility, and

-when corresponding device acts on the corresponding section of described rolled piece, the controlled quentity controlled variable of corresponding part is asked for device and just controlled quentity controlled variable is exported to the device that the state of the rolled piece on passing is affected partly from treatment facility.

Can simplify thus controlled quentity controlled variable and ask for process.

Preferably in this design, stipulate, at least one Plant arrangement that the state of the rolled piece passing from treatment facility is affected is partly in described preposition part of appliance.

Described control device is optional, and can be configured to unified be not be divided into the control device that whole treatment facility is controlled of a plurality of sub-control device or can be divided into a plurality of sub-control device.In situation about in the end mentioning, it is accomplished on same sub-control device in the whole process of passing from treatment facility of the corresponding section of described rolled piece that preferably corresponding controlled quentity controlled variable is asked for device.

As local controlled quentity controlled variable, ask for replacement scheme or the additional project of device, described control device can be realized a controlled quentity controlled variable for all sections of rolled piece and ask for device, and this controlled quentity controlled variable is asked for device and as overall controlled quentity controlled variable, asked for device the mass flow of rolled piece is exerted an influence.

If not only realize overall controlled quentity controlled variable, ask for device but also realize local controlled quentity controlled variable and ask for device, that is preferred regulation just,

-by the controlled quentity controlled variable of described part, ask for the controlled quentity controlled variable that device tries to achieve according to the mode explained above be first temporary transient controlled quentity controlled variable, the controlled quentity controlled variable of wherein said part is asked for device and is not changed and under this hypothesis, try to achieve described temporary transient controlled quentity controlled variable at the mass flow curve of current generation

The controlled quentity controlled variable of-described the overall situation is asked for device and is tried to achieve new mass flow curve by means of input parameter,

-described input parameter at least comprises by local controlled quentity controlled variable asks for temporary transient controlled quentity controlled variable and at least one the assessment parameter for described temporary transient controlled quentity controlled variable that device is tried to achieve, wherein said assessment parameter is minimum possible controlled quentity controlled variable, the controlled quentity controlled variable of maximum possible, the variation of the controlled quentity controlled variable of maximum possible or the median between the possible controlled quentity controlled variable of minimum and the controlled quentity controlled variable of maximum possible, and

The controlled quentity controlled variable of-described part is asked for device and is tried to achieve its final controlled quentity controlled variable by means of mass flow curve and the new mass flow curve of described temporary transient controlled quentity controlled variable, current generation.

The controlled quentity controlled variable of the described overall situation is asked for other input parameter of device and can be determined on demand.Preferably stipulate, described input parameter also can comprise rolled piece at least one also do not enter into the state of expecting of the section of preposition part of appliance, and/or by the controlled quentity controlled variable of corresponding part, ask for the temporary transient controlled quentity controlled variable of expecting that device tries to achieve and the assessment parameter of corresponding correspondence for this section of described rolled piece.

Conventionally described at least one controlled quentity controlled variable is asked for device and respectively a controlled quentity controlled variable is exported to the device that the state of at least one section in the section of the rolled piece on passing is affected in a plurality of moment from treatment facility.In this case, the time interval of first in the frequent described moment constantly and between second moment is less than the first time span of forecast.What can accomplish thus is, described at least one controlled quentity controlled variable ask for device be try to achieve in the described moment first constantly the controlled quentity controlled variable of output try to achieve the controlled quentity controlled variable of constantly expecting for second in the described moment, and take in the second controlled quentity controlled variable of still also this being expected during the state of predicting within the first time span of forecast after constantly of asking in time in the described moment.Especially described at least one controlled quentity controlled variable is asked for the adjuster that device can be configured to model pre-estimating.

Can carry out as required to determine described the first time span of forecast.Especially can so determine described the first time span of forecast, make its at least from affecting first the state in the rolled piece preposition part of appliance, extend to always described rolled piece from rearmounted part of appliance out.

With regard to so far illustrated situation, described prediction only relates to the single section of rolled piece.Described control method can further be improved in the following manner, being described control device tries to achieve the state of expecting within the second time span of forecast of corresponding device for affecting at least one device in the device of state of rolled piece, and described control device takes in the state of expecting in the second time span of forecast of corresponding device asking for to be asked for by controlled quentity controlled variable when device is exported to the controlled quentity controlled variable of corresponding device.

Described, press in a kind of preferred design of control method of the present invention, described at least one controlled quentity controlled variable is asked for the optimization (that is to say maximize or minimize) of device by object function and is tried to achieve described controlled quentity controlled variable, and wherein except the deviation that departs from corresponding rated condition of the state of predicting of at least one section of rolled piece, the energy consumption of described treatment facility also joins in described object function.By this processing mode, can reduce the energy requirement of described treatment facility and even may be reduced to bottom line.

Described finishing mill line generally has many rolling machine frames, and described rolling machine frame is therefrom passed by rolled piece order through in the process of finishing mill line at rolled piece.Describedly also can use while especially there is no arranged cold radiator cooler between the rolling machine frame before the rolling machine frame first passing of described finishing mill line and at described finishing mill line by control method of the present invention.

Can arrange like this, the part of appliance that described preposition part of appliance is configured to finishing mill line and described postposition is configured to cooling section.In the possible design of another kind, the part of appliance of described postposition is configured to finishing mill line.Described preposition part of appliance in this case preferable configuration is stove, such as being configured to induction furnace.Describedly by control method of the present invention, especially also can in a kind of design of described treatment facility, use, in this design, before described stove, arranged roughing train, in the arranged in front of described roughing train continuous casting installation for casting and described equipment with casting rate, move, thereby by described casting rate and rolled piece, the cross section decrease in roughing train determines that described rolled piece enters into the speed of described finishing mill line.

In addition, the computer program of the type that described task is mentioned by a kind of beginning is resolved, so the machine code of this computer program of design, carries out by control method of the present invention described control device thereby carry out described machine code by described control device.Described computer program especially can be saved in data medium with machine-readable form (especially can only with machine-readable form such as in electronics mode).

In addition, described task is resolved for the rolled piece especially control device of the treatment facility of banded rolled piece by a kind of, and this control device so forms, and it is in operation and carries out by control method of the present invention.

Accompanying drawing explanation

Other advantage and details from below in conjunction with accompanying drawing to obtaining embodiment description.Accompanying drawing goes out as follows with principle schematic:

Fig. 1 is the schematic diagram for the treatment facility of rolled piece;

Fig. 2 to 5 is possible designs of the treatment facility of Fig. 1;

Fig. 6 to 9 be flow chart and

Figure 10 and 11 is possible designs of control device.

The specific embodiment

According to Fig. 1, for the treatment facility of the rolled piece 1 that extends, there is preposition and rearmounted part of appliance 2,3.Described preposition and rearmounted part of appliance 2,3 is directly sequentially passed by rolled piece 1.Described rolled piece 1 can be especially banded rolled piece.It is generally made of metal, such as being made by steel, aluminium, red metal, brass or other non-ferrous metal.

Described part of appliance 2,3 preposition or postposition is configured to finishing mill line.In the design of Fig. 2 and 3, described preposition part of appliance 2 is configured to finishing mill line.In pressing the design of Figure 4 and 5, the part of appliance 3 of described postposition is configured to finishing mill line.

In the situation that rely on described part of appliance 2,3 preposition or postposition, whether be not configured to finishing mill line, described finishing mill line generally has many rolling machine frames 4, and described rolling machine frame 4 is therefrom passed by described rolled piece through priority in the process of finishing mill line at rolled piece 1.In the rolling machine frame 4 of described finishing mill line, in the situation that reducing cross section, described rolled piece 1 is rolled.The number of rolling machine frame 4 is generally between 4 and 8, such as being 6 or 7.As an alternative, can carry out reversible rolling.In this case, conventionally exist a unique rolling machine frame 4.

Described another part of appliance 3,2 is configured to the part of appliance different from described finishing mill line.According to Fig. 2 and 3, the part of appliance of described postposition is configured to cooling section, and this cooling section has roller-way 5 and cooling device 6.In described cooling section, the cross section of rolled piece 1 (except thermal contraction) no longer changes.That is to say the distortion of no longer carrying out rolled piece 1 in described cooling section.According to Figure 4 and 5, described preposition part of appliance 2 is configured to stove, such as being configured to induction furnace.

As being shown in broken lines in Fig. 1, can arrange like this, in the arranged in front of described preposition part of appliance 2 itself another part of appliance 7.In the design in Fig. 2 and 3, a stove and/or other assembly before described finishing mill line, have been arranged extraly.In pressing the design of Fig. 5, such as arranged roughing train as another part of appliance 7 before described stove.Before described roughing train, arranged again continuous casting installation for casting 8.

According to the schematic diagram being shown in broken lines of Fig. 1, equally can be at the part of appliance 3 of described postposition arrange other part of appliance 9 below.Such as can arrange cooling section as another part of appliance 9 after described finishing mill line in the design of Fig. 4.

Described other part of appliance 7,9 can together be brought in the control program of explaining in detail below.As an alternative, can be only to move described preposition and rearmounted part of appliance 2,3 by mode of the present invention and otherwise to move other part of appliance 7,9.

Boundary line between described part of appliance 8,7,2,3,9 can be come to determine as required.Especially between first active component of last active component that the boundary line between described part of appliance 8,7,2,3,9 can be in corresponding preposition part of appliance 8,7,2,3 and the part of appliance 7,2,3,9 of corresponding postposition.Stove and the part of appliance 7 that is arranged in this stokehold face are such as the boundary line between roughing train 7 therefore between last frame and first heater 18 of described stove in described roughing train 7.In a similar fashion, between last heater 18 and the First frame 4 of described finishing mill line of the boundary line between stove and described finishing mill line in described stove.Between last rolling machine frame 4 and first cooling device 6 of described cooling section of boundary line between described finishing mill line and cooling section in described finishing mill line.If between every two parts of appliance 8,7,2,3,9 that directly successively accompany each other, arranged temperature measuring point 19(or other such as the measurement station for thickness of strip or ribbon shape), so preferably the position of corresponding measurement mechanism 19 is representing the boundary line between described part of appliance 8,7,2,3,9.

The treatment facility of Fig. 1 to 5 is controlled (only shown in Figure 1) by control device 10.Described control device 10 is configured to control device that can software programming conventionally.This shows in the following manner in Fig. 1, and therefore the mode of action that has write letter " μ p " described control device 10 in the inside of described control device 10 is determined by computer program 11.This computer program 11 has machine code 12, and this machine code 12 can directly be carried out by described control device 10.By described control device 10, carry out machine code 12, make described control device 10 carry out the control method that will explain in detail below.Due to the execution of described machine code 12, so form described control device 10, it is in operation and carries out by control method of the present invention.

Described computer program 11 can be in mode arbitrarily such as flow to described control device 10 by computer-computer-connection.Especially consider to carry by internet or LAN.As an alternative, described computer program 11 can flow to described control device 10 by mobile data medium 13, in described data medium, with machine-readable form, has preserved described computer program 11.This in Fig. 1 as the pure data medium 13 that exemplarily shows described movement of usb memory stick.But the data medium of described movement also can be configured to other form.

Below in conjunction with Fig. 6 to a kind of possible making an explanation by control method of the present invention.

According to Fig. 6, in step S1, to described control module 10, carry the current position of current state Z and the point 14 of rolled piece 1.Described current position is based on process equipment.Described current position is at the top of described preposition part of appliance 2, in the design of Fig. 2 and 3 namely such as before the first rolling machine frame 4 at described finishing mill line.If described finishing mill line has intermediate stand cooling device 15 and also arranged such intermediate stand cooling device 15 before the First rolling machine frame 4 of described finishing mill line according to the schematic diagram of Fig. 2, so described position also can be before this intercooler unit 15.This position also can be in more forward position if desired.

In other design of using treatment facility, such as pressing in the situation of design of Fig. 4, described location arrangements is at other position.If described by control method of the present invention such as the stove above that is arranged in described finishing mill line is together brought into, so described position just must be before described stove, or rather must be before first heater 18 of described stove.In general applicable this point, described position must be arranged in first and brings into described by before the top of the part of appliance in control method of the present invention or be arranged in more forward position.

Can be from the outside or otherwise come for described control device 10 described state Z given in advance.Can detect described state Z by measuring technique as an alternative.Also can consider mixed form.Such as for determining the state of the energy of relevant point 14, can on described current position, arrange temperature measuring point 19, by means of described temperature measuring point, on the surface of rolled piece 1, detect the current temperature T of the point 14 of rolled piece 1.In the thickness range of described rolled piece 1, see, temperature variation curve is such as trying to achieve by model.Such model is commonly those skilled in the art and knows.

Likely, the state of described energy has obtained description completely by the temperature T of described point 14.Because described temperature T often within the scope of one, can judge clearly by means of described temperature actually within the scope of this, rolled piece 1 is in which kind of phase.Such as when steel is rolled, described temperature is generally approximately 1000 ℃ or higher and thus far away higher than the phase transition temperature (about 723 ℃ to 911 ℃) of steel in the porch of finishing mill line.Therefore know, described rolled piece 1 is in this case in phase " austenite ".

The size of described rolled piece 1-such as thickness of strip the rolled piece for banded and strip width-can otherwise try to achieve or otherwise be understood by described control device 10.

In step S2, described control device 10 is tried to achieve desired final parameter by means of desired end-state Z*, and described point 14 should have desired end-state Z* through after rearmounted part of appliance 3.Such as described control device 10 can be in the hope of the desired final enthalpy of rolled piece 1, desired final temperature, desired phase fraction, such as can be in the hope of austenitic share etc. for steel.As the replacement scheme of trying to achieve the way of final parameter, it can be also described control device 10 desired final parameter given in advance.

In step S3, described control device 10 is that detected point 14 is realized controlled quentity controlled variable and asked for device 16(referring to Figure 10 and 11).Described controlled quentity controlled variable is asked for device 16 and with the state Z of corresponding point 14, is initialized and start in the scope of step S3.Described controlled quentity controlled variable is asked for device 16 and is asked on the corresponding point 14 that device 16 is coupled to described rolled piece 1 as local controlled quentity controlled variable.This controlled quentity controlled variable is asked for device and is coupled on this point 14 through keeping in the process of described treatment facility the whole of point 14.

The local controlled quentity controlled variable realizing is asked for device 16 and always controlled quentity controlled variable S is exported to the device of described treatment facility when corresponding device acts on the corresponding point 14 of rolled piece 1.The state Z of the corresponding device rolled piece 1 that only namely impact is passed from described treatment facility on the position of having arranged corresponding device partly.At relevant device, act on the moment on the relevant point 14 of described rolled piece 1, although other position of rolled piece 1 may be subject to the impact of other device, be not subject to the impact of this device.

The moment of the single assembly of described treatment facility-act on the corresponding point 14 of described rolled piece 1 such as the heater 18-of the cooling device 6 of Fig. 2 and the stove of intermediate stand cooling device 15 or Fig. 4 can easily ask for.Especially can realize-by known-stroke of those skilled in the art, follow the tracks of.

In step S4, the controlled quentity controlled variable of described part is asked for device 16 and is determined temporary transient controlled quentity controlled variable change curve.In step S5, the controlled quentity controlled variable of described part is asked for model 17 that device 16 realizes by means of the inside at described control device 10 of rolled piece 1 within time span of forecast and is tried to achieve the state that the end at described time span of forecast of expecting of corresponding point 14 is expected.The controlled quentity controlled variable of described part is asked for device 16 and is not changed the state of expecting of trying to achieve corresponding point 14 under this hypothesis at the mass flow curve of current generation, and corresponding point 14 is estimated to pass described treatment facility with the current mass flow curve being produced now and in the future.

Be generally and try to achieve expected state and must separate time-based differential equation.In this case, be necessary to adjust described state with less temporal spacing.Therefore, try to achieve in this case whole state variation curve.

Corresponding model 17 is known and be not theme of the present invention as such model.The heat conduction equation formula of described model 17 based on Fourier, phase transition model, heat transfer model, rolling model etc.

In the scope of prediction, the controlled quentity controlled variable of described part is asked for device 16 and is considered that controlled quentity controlled variable S, this local controlled quentity controlled variable ask for device 16 and as next step, with this controlled quentity controlled variable S, control one of device that the state Z of corresponding point 14 is affected on the one hand.

In individual cases-such as when only there is a unique heater 18-controlled quentity controlled variable of described part asks for device 16 only at a unique moment output controlled quentity controlled variable S.But the controlled quentity controlled variable of common described part is asked for device 16 and respectively a controlled quentity controlled variable S is exported to the device just corresponding point 14 of rolled piece 1 being affected in a plurality of moment.If the time interval in other the moment and the described current moment (ask for device in the controlled quentity controlled variable of current described part of the moment and export its controlled quentity controlled variable S) is less than the time span of forecast that the controlled quentity controlled variable of described part is asked for device 16, the controlled quentity controlled variable of so described part is asked for device 16 and is not only tried to achieve as the next one and need the controlled quentity controlled variable S of output, and exports respectively a controlled quentity controlled variable of expecting for other the moment within described time span of forecast.It is starting point that the controlled quentity controlled variable of part described here is asked for the following situation of device 16, and current mass flow curve does not change, and the point 14 of studying comes through described treatment facility with described current mass flow curve now and in expectation in the future.When asking for the state that device 16 expects at the end at time span of forecast of asking for the corresponding point 14 of described rolled piece 1, the controlled quentity controlled variable of described part certainly considers the controlled quentity controlled variable of tried to achieve expectation.The controlled quentity controlled variable of described part is asked for the adjuster that device 16 can be configured to model pre-estimating for this purpose and especially.

In step S5, the controlled quentity controlled variable of described part is asked for device 16 and is tried to achieve its controlled quentity controlled variable S by the optimization (namely minimize or maximize) of object function.Certainly, the deviation that departs from corresponding rated condition of the state of predicting of the point 14 of described rolled piece 1 joins in described object function.The parameter that as an alternative, can use described state itself or derive from described state at this.

As supplementing of desired end-state, also can be for described control device 10 be for other position of described treatment facility and/or enter into the desired intermediateness given in advance of specific time of calculating treatment facility for the corresponding point 14 from rolled piece 1.If this is the case, that is just corresponding position and/or time try to achieve corresponding desired middle parameter and when the controlled quentity controlled variable of asking for described part is asked for the controlled quentity controlled variable S of device 16, it are taken in certainly.

Object function normally has the function of a plurality of variablees.According to SQP method, make described the minimization of object function (or maximization).Described SQP method is known by those skilled in the art.

The controlled quentity controlled variable of described part is asked for device 16, in step S7, the current controlled quentity controlled variable S that needs output being tried to achieve by it is exported to corresponding device, utilizes this device can be at the state Z of the relevant point 14 of current impact.Described control device 10 is such as following the tracks of to ask for corresponding device by means of already mentioned stroke.In addition, the controlled quentity controlled variable of corresponding part is asked for 16 pairs of the devices state Z to the point 14 of its distribution and is upgraded.

As already mentioned and also the same shown in figure 2, the controlled quentity controlled variable of described part is asked for device 16 such as acting on cooling device 6,15.Described cooling device can be arranged in the cooling section of Fig. 2.As an alternative or additional project, described cooling device can be arranged in finishing mill line, is namely arranged in according in the preposition part of appliance 2 of Fig. 2.Same such as in the design of Figure 4 and 5, the controlled quentity controlled variable of described part is asked for the heater 18 that device 16 can act on described stove.Corresponding device is arranged in described preposition part of appliance 2 thus in this case.

The controlled quentity controlled variable of definite described part is asked for the time span of forecast of device 16 rightly.Especially true definite described time span of forecast, thereby for common bar rolling speed, in the controlled quentity controlled variable of described part, ask for the moment that device 16 is controlled the device (such as controlling one of described intermediate stand cooling device 15 or control one of heater 18 of described stove in by the design of Fig. 2 in by the design of Fig. 4) in described preposition part of appliance 2, the controlled quentity controlled variable of described part is asked for the state of predicting that device 16 is considered the corresponding point 14 of described rolled piece 1, only at the corresponding point 14 of described rolled piece 1, this corresponding point 14 just has predicted state in the part of appliance 3 in described postposition time.

This truth illustrates in the following manner intuitively in Fig. 2, purely exemplarily draws different possible time span of forecasts.Described possible time span of forecast represents to PH3 with Reference numeral PH1 in Fig. 2.

According to time span of forecast PH1, the controlled quentity controlled variable of described part is asked for device 16 and when it tries to achieve the controlled quentity controlled variable S for last intermediate stand cooling device 15 of described finishing mill line, is considered the state of expecting of the corresponding point 14 of described rolled piece 1, and corresponding point 14 only just has expected state in cooling section.According to time span of forecast PH2, when the controlled quentity controlled variable of described part is asked for device 16 and tried to achieve the controlled quentity controlled variable S for penultimate intermediate stand cooling device 15, be just this situation.According to time span of forecast PH3, even can so determine described time span of forecast, the state that makes its from the part of appliance 2 preposition (namely such as in the intermediate stand cooling device 15 being arranged in Fig. 2 before described the first rolling machine frame 4, in by the design of Fig. 4 in described first heater 18) affect first described rolled piece 1 rises and extends to rolled piece 1 always and be shifted out from the part of appliance 3 of described postposition.Similarly implement certainly also described treatment facility press Fig. 3,4 and 5 design in be suitable for.

Described time span of forecast can be static state or dynamic.Preferred described time span of forecast is static prediction at the beginning, until the part of appliance 3(that described time span of forecast arrives described postposition last brings into described by the part of appliance in control method of the present invention conventionally in other words) end.Then preferably dynamically shorten described time span of forecast, make its corresponding current position of asking for the point 14 of device 16 from distributing to the controlled quentity controlled variable of corresponding part extend to the end of the part of appliance 3 of described postposition always.Can introduce in this case a kind of time span of forecast as expansion link, for this expansion link, end is connected to the controlled quentity controlled variable of distributing to corresponding part and asks on the point 14 of device 16 and future " is stretched to " in another end.Described expansion link keeps the state of pulling out, until the end of the part of appliance 3 of described postposition " is encountered " in another end.Described expansion link correspondingly " shortening " then.

In step S8 and S9, described control device 10 checks, relevant point 14 whether from the part of appliance 3 of described postposition out, that is to say such as whether left described cooling section in the design of Fig. 2.If not this situation, so described control device 10 just returns to step S4.If this is the case, described control device 10 just forwards step S10 to.In step S10, described control device 10 is deleted the local controlled quentity controlled variable realizing for point 14 out and is asked for device 16.At least, by the scope of control method of the present invention, no longer described point 14 is out investigated.

If desired can between individual equipment parts 2,3 and/or after the part of appliance 3 of described postposition-according to the design of Fig. 2 namely such as between described finishing mill line and described cooling section and/or after described cooling section-arrange other measurement mechanism 19, by means of described other measurement mechanism, detect the parameter G relevant to desired final parameter, such as the temperature T of the corresponding point 14 of described rolled piece 1.In this way, such as carrying out adaptation to described model 17.Corresponding processing mode is known and be not theme of the present invention as such processing mode as such processing mode.

The method of beat-type ground execution graph 6.Such as correspondingly correspondingly detect the new point 14 of rolled piece 1 with common work tempo between 0.1 and 1.0 second.The preferred numerical value of described work tempo is between 0.2 and 0.5 second, such as being approximately 0.3 second.Described control device 10 is therefore abreast concerning all methods of explaining in conjunction with Fig. 6 on specific point in described treatment facility constantly 14 is carried out.

In addition have when entering into described preposition part of appliance 2-constant or variable-entrance velocity v of described rolled piece 1.Each point in described point 14 is therefore corresponding with a section of rolled piece 1, the length of described section is the product of described work tempo and current entrance velocity v, and corresponding point 14 enters into described preposition part of appliance 2 with described current entrance velocity v.

Next the method for explaining in conjunction with Fig. 7 is preferably used in by the design of the treatment facility of Fig. 2 or Fig. 3.Described method has step S11 to S24.Step S11 is consistent to S10 with the ratio of 1:1 and the step S1 of Fig. 6 to S20.Therefore, about step S11, to S20, no longer need more detailed explanation.

In step S21, described control device 10 is realized overall controlled quentity controlled variable and is asked for device 20(referring to Figure 10 and 11).The controlled quentity controlled variable of the described overall situation is asked for all points 14/ section 14 that device 20 acts on the mass flow of described rolled piece 1 and acts on thus described rolled piece 1 simultaneously.By described step S22 and S23, the controlled quentity controlled variable of the described overall situation being asked for to device 20 is incorporated into described by control method of the present invention.

In step S22, the controlled quentity controlled variable of the described overall situation is asked for device 20 and is tried to achieve new mass flow curve.The described process of asking for is carried out by means of asked for the controlled quentity controlled variable S that device 16 tries to achieve in step S16 by local controlled quentity controlled variable at this.The controlled quentity controlled variable of the described overall situation is asked for device 20 and is preferably not only being considered and needing to ask for by local controlled quentity controlled variable the controlled quentity controlled variable S that device 16 is exported in step S17 in the scope of step S22, and considers that by the controlled quentity controlled variable of described part, asking for the controlled quentity controlled variable in local of expecting that device 16 tries to achieve asks for the controlled quentity controlled variable within the time span of forecast of device 16.

The controlled quentity controlled variable of the described overall situation is asked for device 20 and by means of at least one assessment parameter controlled quentity controlled variable S that local controlled quentity controlled variable is asked for to device 16, is assessed in the scope of step S22.Described assessment parameter but also describedly ask for by local controlled quentity controlled variable controlled quentity controlled variable S that device 16 tries to achieve and representing that thus the controlled quentity controlled variable of the described overall situation asks for the input parameter of device 20 not only.At least one parameter in described assessment parameter can (be asked for device 16 for each local controlled quentity controlled variable) especially following parameter:

-minimum possible controlled quentity controlled variable,

The controlled quentity controlled variable of-maximum possible,

-median between the possible controlled quentity controlled variable of minimum and the controlled quentity controlled variable of maximum possible, and

The controlled quentity controlled variable of-maximum possible changes.

First three parameter in the parameter of mentioning for each controlled quentity controlled variable (it doesn't matter needs output still only within time span of forecast at step S15), respectively based on device 6,15,18, ask for device 16 and act on described device 6,15,18 at corresponding output time by the controlled quentity controlled variable of corresponding part.Only the controlled quentity controlled variable of described maximum possible is changed that to take in this way just meaningful when the controlled quentity controlled variable of the described overall situation is asked for device 20 and a plurality of controlled quentity controlled variable S is placed in each other among association, described a plurality of controlled quentity controlled variables are asked for device 16 or by the controlled quentity controlled variable of a plurality of parts, are asked for device 16 and successively export to same device 6,15,18 by the controlled quentity controlled variable of same part.

The controlled quentity controlled variable of the especially described overall situation is asked for device 20 and is asked for the controlled quentity controlled variable of described part that device 16 is similar can be set up object function and it is optimized.Especially described object function can comprise penalty term (Strafterme), utilizes described penalty term to punish,

If the controlled quentity controlled variable of-described part is asked for the controlled quentity controlled variable S of device 16 close to minimum adjusting border and/or maximum adjusting border,

If the controlled quentity controlled variable S that the controlled quentity controlled variable of-described part is asked for device 16 from described median too away from and/or

The controlled quentity controlled variable that-desired controlled quentity controlled variable changes close to maximum possible changes.

Also the controlled quentity controlled variable S ' that can be in a similar fashion the controlled quentity controlled variable of the described overall situation be asked for to device 20 assesses.

By the change of described mass flow curve, the controlled quentity controlled variable of the described overall situation is asked for device 20 and in step S22, is attempted assessment to be optimized.Such as the controlled quentity controlled variable of the described overall situation, ask for device 20 and attempt keeping within the range of permission needing to ask for device 16 controlled quentity controlled variable S output and that expect by the controlled quentity controlled variable of described part, keep as far as possible with regulate border at a distance of and expected pace of change is kept within the range of permission.Meanwhile, the controlled quentity controlled variable of the described overall situation is asked for device 20 and is considered the corresponding border for mass flow.The controlled quentity controlled variable of the described overall situation is asked for device 20 also can be configured to the adjuster of model pre-estimating.

In step S23, the controlled quentity controlled variable of described part ask for device 16 by means of the temporary transient mass flow curve of newly trying to achieve in step S22 and before this controlled quentity controlled variable of applicable mass flow curve try to achieve its final controlled quentity controlled variable S.Controlled quentity controlled variable local described in step S16 ask for device must calculate described rolled piece 1 corresponding section 14 until the state of expecting of its time span of forecast, contrary with described step S16, in step S20, only demarcating the current controlled quentity controlled variable S that needs output just can be enough.But do not get rid of complete recalculating.In the situation that do not depend on concrete processing mode, owing to having changed described controlled quentity controlled variable S in step S23, so the controlled quentity controlled variable S trying to achieve in step S16 is only temporary transient controlled quentity controlled variable S.

In step S17, only the controlled quentity controlled variable of described part is asked for device 16 its controlled quentity controlled variable S is exported to corresponding device 6,15,18.In the step S24 almost simultaneously carrying out with step S17, the controlled quentity controlled variable of the described overall situation is asked for device 20 to the executing agency for mass flow-such as the speed regulator 21-to for rolling machine frame 4 exports corresponding controlled quentity controlled variable S '.

Processing mode described in conjunction with Figure 7 is especially very important when there is not intermediate stand cooling device 15 according to Fig. 3.But this processing mode only could be implemented when there is described intermediate stand cooling device 15.But, do not depending on whether there is described intercooler unit 15 in the situation that, at a plurality of sections 14 in described preposition part of appliance 2 moment of (according to Fig. 2 and Fig. 3 such as finishing mill line), the controlled quentity controlled variable of the described overall situation is asked for device 20 its controlled quentity controlled variable of output S '.

To ask for device 16 similar with the controlled quentity controlled variable of described part, and the controlled quentity controlled variable of the described overall situation is asked for device 20 and also had time span of forecast.Described time span of forecast and Fig. 2 are similar can be come to determine as required.It can to ask for the time span of forecast of device 16 identical or different with it from the controlled quentity controlled variable of described part.The controlled quentity controlled variable of Fig. 3-exemplarily pure-show the described overall situation is asked for several possible time span of forecasts of device 20, and these time span of forecasts represent with PH4 and PH5 in Fig. 3.Described time span of forecast minimum (referring to time span of forecast PH4) extends to first device 6 of the part of appliance 3 of described postposition always from the top of described preposition part of appliance 2, can affect partly the state of rolled piece 1 by means of described first device 6.Described time span of forecast maximum (referring to described time span of forecast PH5) extends to the end of the part of appliance 3 of described postposition completely always from the top of described preposition part of appliance 2, that is to say extend to always rolled piece 1 from the part of appliance 3 of described postposition out.Also can consider larger time span of forecast.Similarly implement to be certainly also applicable to described treatment facility by the design of Fig. 2 and 4.

If exist overall controlled quentity controlled variable to ask for device 20, so even likely, the input parameter that the controlled quentity controlled variable of the described overall situation is asked for device 20 also can comprise the state of expecting of the section 14 that does not also enter into preposition part of appliance 2 of described rolled piece 1.Only be necessary, each section 14 is realized in advance in time, is initialized and the corresponding local controlled quentity controlled variable of starting is asked for device 16 for this reason.As long as this local controlled quentity controlled variable is asked for the section 14 that does not also enter into preposition part of appliance 2 that device 16 continues as described rolled piece 1 and tried to achieve the local controlled quentity controlled variable of having expected, the input parameter that the controlled quentity controlled variable of the so described overall situation is asked for device 20 also comprises controlled quentity controlled variable that these are expected and corresponding assessment parameter.

The processing mode of Fig. 7 also can be used in by the treatment facility of Fig. 2.It also can be used in by the treatment facility of Fig. 4.

As described above the same, in the controlled quentity controlled variable of asking for the described overall situation, ask for the prediction of the state Z of the section 14 that carries out described rolled piece 1 when the controlled quentity controlled variable S ' of device 20 and the controlled quentity controlled variable of described part are asked for the controlled quentity controlled variable S of device 16.Can arrange so extraly, being described control device 20 tries to achieve the state of expecting within another (second) time span of forecast of corresponding device 6,15,18,21 at least one device in the device 6,15,18,21 that the state Z of described rolled piece 1 is affected, and asks for when device 16,20 is exported to controlled quentity controlled variable S, the S ' of corresponding device 6,15,18,21 state of expecting in this time span of forecast of corresponding device 6,15,18,21 is taken in asking for by described controlled quentity controlled variable.Next this point is explained in detail in conjunction with Fig. 8 and 9.At this, Fig. 8 shows a kind of possible design of Fig. 6, and Fig. 9 shows a kind of possible design of Fig. 7.

According to Fig. 8, extra step S31 and S32 between step S6 and S7, have been inserted.In step S31, at least one device that described control device 10 is asked for for being subject to the controlled quentity controlled variable of described part in the device 6,15,18 of device 16 impacts is tried to achieve the state that it is expected.In step S32, as long as be necessary, described control device 10 just in the situation that the state of expecting of considering corresponding device 6,15,18 to asked for device 16 by the controlled quentity controlled variable of described part, export to the controlled quentity controlled variable S of device 6,15,18 and revise.

By means of a kind of simple embodiment, the processing mode of Fig. 8 is explained in detail below.

In this hypothesis, the specific cooling device 6 of described cooling section specific section 14 to rolled piece 1 in the specific work tempo of described control device 10 loads cooling agent (such as water).In next work tempo, identical cooling device 6 loads cooling agents to next section 14, in next work tempo again, to next section 14 again, loads cooling agents.

The controlled quentity controlled variable of described part is asked for device 16 and act on mentioned cooling device in specific work tempo, and this local controlled quentity controlled variable is asked for device 16 and tried to achieve 80% as relative controlled quentity controlled variable.The described next one and more local controlled quentity controlled variable next, that distribute to two ensuing sections 14 of rolled piece 1 are asked for device 16 and are tried to achieve 50% and 20% as expected controlled quentity controlled variable.In addition hypothesis, follows and at the cooling device 6 of mentioning first cooling device 6 below, should ask for device by three local controlled quentity controlled variables of just having mentioned and control with 60%, 60% and 40%.In addition suppose, described cooling device 6 is configured to identical structure and can the amplitude with 25% changes its coolant flow from work tempo to work tempo maximum.

If there is not step S31 and S32 in the above under the hypothesis of mentioning, it is 80% and 60% cooling that the section 6 so only first passing from described two cooling devices 6 is used exactly.But described the second section can only only be used by described the first cooling device 55% cooling, because described the first cooling device 6 cannot be controlled coolant flow quickly from 80%.Error thereby be 5%.Described next section is with 30% rather than cooling with 20%.Reason is same: corresponding cooling device 6 can only be by coolant flow from 55% restraining to 30%.

But, in the situation that consider the state of described cooling device 6 and its adjustment possibility (minimum change with the coolant flow of maximum coolant flow, each work tempo maximum) especially, can change intelligently coolant flow, thereby such as carrying out cooling by described two through cooling device 6 use 75% and 65% pair of described the first section 14 of inquiring into, with 50% and 60% pair of described the second section, carry out coolingly, and carry out cooling with 25% and 35% pair of described the 3rd section 14.As a result of realize thus this point ,-as a result of next cooling by correct amount of coolant by three sections 14 of described two cooling device 6-described rolled pieces.Therefore, the suitable change by amount of coolant, can be optimized.

In a similar fashion, in by the processing mode of Fig. 9, can after step S16, exist step S41 and S42.Described step S41 and S42 are equivalent to step S31 and the S32 of Fig. 8 in terms of content.

As an alternative or additional project, can there is step S43 and S44, these two step S43 and S44 be inserted in step S23 after.Step S43 and S44 can be equivalent to step S31 and the S32 of Fig. 8 aspect content.As supplementing of step S41 and S42, why especially meaningful the existence of step S43 and S44 is, is may change because of the controlled quentity controlled variable S that asks for device 16 due to controlled quentity controlled variable local described in step S22.

In addition, may be meaningfully, deposition step S45 and S46 after step S22.In step S45 and S46, for the executing agency 21 for mass flow, take and step S31 and the similar processing mode of S32.

The same as already mentioned, described controlled quentity controlled variable is asked for device 16,20 and conventionally by the optimization of corresponding object function, is tried to achieve its corresponding controlled quentity controlled variable S, S '.As supplementing of the deviation of corresponding rated condition of departing from of predicted state, preferably one or more in following parameter can join in described object function:

-described controlled quentity controlled variable S, S ' and the spacing of being asked for the adjusting border (minimum of a value and maximum) of the device 6,15,18,21 that device 16,20 controls by corresponding controlled quentity controlled variable;

The deviation that departs from median of-controlled quentity controlled variable S, S ' that export and that expect in the future, described median great majority are the center between the adjusting border in corresponding device 6,15,18,21 approximately;

-possibly, and for corresponding device 6,15,18,21, the spacing of the pace of change of the maximum possible of the controlled quentity controlled variable of expecting variation and described controlled quentity controlled variable S, S ';

-especially at described treatment facility, there is stove such in the situation that, the temperature that the maximum of rolled piece 1 allows and actual temperature T and the spacing between this numerical value;

The total energy consumption of-described treatment facility.

Less to the deviation that departs from corresponding rated condition of the state of expecting within PH5 and/or the state expected to the end of PH5 at described time span of forecast PH1 at time span of forecast PH1, (nature) be the described object function of better solution just.As long as consider one or more in other parameter above-mentioned, so

-controlled quentity controlled variable S, S ' that export and in the future be away from the adjusting border of corresponding controlled device 6,15,18,21,

The deviation of-controlled quentity controlled variable S, S ' that export and that expect in the future near median and/or

-desired pace of change is away from the pace of change of the maximum possible of exported and controlled quentity controlled variable S, S ' in the future,

With regard to the described object function of better solution.

As replacement scheme or the additional project-preferred alternative hereto of the way that the pace of change of the maximum possible of adjusting border and controlled quentity controlled variable S, S ' is taken in, can be used as supplementary corresponding equation and the inequality additional conditions set up of object function.In this case, in the scope of the optimization of described object function (=maximize or minimize), consider described additional conditions.Should considerable additional conditions such as setting up when object function is optimized, that by cooling device 6,15, is undertaken coolingly may not be negative and can not surpass certain (equipment peculiar, be also dynamic if desired) maximum.The SQP method of mentioning can take in such additional conditions.

Described realization must have higher computational efficiency by the control device of control method of the present invention 10.Can according to the schematic diagram of Figure 10 a unique unification be not to realize this computational efficiency in being divided into the control device 10 of a plurality of sub-control device, described control device 10 is being controlled whole treatment facility.As an alternative, according to the schematic diagram of Figure 11, described control device 10 can be divided into a plurality of sub-control device 22.If carry out such division, but so preferably each local controlled quentity controlled variable realizing is asked for device 16 and at same sub-control device 22, is realized in the whole process of passing from treatment facility of the corresponding section 14 of rolled piece 1.Thereby preferred really not so processing, make corresponding local controlled quentity controlled variable ask for device 16 such as being delivered to from the sub-control device 22 shown on the left side among Figure 11 the sub-control device 22 illustrating on the right in Figure 11, if-such as the corresponding section 14 of-described rolled piece 1 is transferred to rearmounted part of appliance 3 from preposition part of appliance 2.

The processing mode explained above also can apply in a similar fashion by the design of the treatment facility of Figure 4 and 5.Unique main difference is, the section 14 of described rolled piece 1 is not to obtain cooling but heated by means of the heater 18 of described stove.

The present invention has many advantages.Especially first realized the prediction of striding equipment parts.Although estimate and use thus prediction because used a model in the prior art.But described prediction is confined on corresponding part of appliance 2,3 in the prior art all the time.

In addition, especially can be using the described stove as preposition part of appliance 2 for regulating as the adjusting finishing temperature of the outlet of the finishing mill line of rearmounted part of appliance 3 in by the design of the treatment facility of Figure 4 and 5.Only time span of forecast must be selected enough large for this reason.

This design especially has decisive meaning, if do not have intermediate stand cooling device 15 and determined entrance velocity v for technologic reason on the other hand on the one hand in described finishing mill line, described rolled piece 1 enters into described finishing mill line with described entrance velocity v.Because then available without any executing agency in the inside of described finishing mill line, at this, by means of described executing agency, can regulate the finishing temperature in the outlet of described finishing mill line.But by processing mode of the present invention, described stove (=preposition part of appliance 2) can be for correspondingly regulating finishing temperature (not being the inlet temperature on the entrance of finishing mill line) by described.

Described rolled piece 1 enters into described finishing mill line with entrance velocity v, why such as determining this entrance velocity v, be because according to the schematic diagram of Fig. 5 having arranged roughing train and having arranged again continuous casting installation for casting 8 above at this roughing train on the other hand as another preposition device 7 on the one hand above at described finishing mill line.Because the casting rate of described continuous casting installation for casting 8 is substantially passed through that the coagulating property of cast metal is determined and can only be regulated in very narrow boundary.The entrance velocity v of described rolled piece 1 is in this case by more or less casting rate given in advance and the cross section decrease in roughing train of rolled piece 1 are determined regularly.

Description is above only for explaining the present invention.Yet the claim that protection scope of the present invention only should have been passed through to enclose is determined.

Claims

1. for the control method of the treatment facility of the rolled piece (1) that extends,

-wherein said treatment facility at least has a preposition part of appliance (2) and a rearmounted part of appliance (3), and described part of appliance is directly sequentially passed by rolled piece (1),

-wherein said part of appliance (2,3) preposition or postposition is configured to finishing mill line, in described finishing mill line, in the situation that reducing cross section, rolled piece (1) is rolled, and another part of appliance (3,2) is configured to the part of appliance different from described finishing mill line

-wherein for the section (14) of the rolled piece passing from described treatment facility (1), give for the control device (10) of described treatment facility at least one final parameter given in advance correspondingly,

-wherein said corresponding final parameter is derived from corresponding desired end-state (Z*), and the corresponding section (14) of described rolled piece (1) should have described end-state (Z*) afterwards through rearmounted part of appliance (3),

-wherein said control device (10) is realized at least one controlled quentity controlled variable and is asked for device (16,20),

-wherein said controlled quentity controlled variable is asked for device (6,15,18,21) the output controlled quentity controlled variable (S, S ') that device (16,20) is affected the state (Z) of at least one section in the section (14) of the rolled piece (1) through treatment facility at least one,

-wherein said controlled quentity controlled variable ask for device (16,20) at described at least one section (14) moment in described preposition part of appliance (2) export described controlled quentity controlled variable (S, S '),

-wherein when asking for described controlled quentity controlled variable (S, S '), described controlled quentity controlled variable ask for device (16,20) consider described rolled piece (1) at least one section (14) under model supports, try to achieve expect in corresponding controlled quentity controlled variable, ask for the state within first time span of forecast (PH1 is to PH5) of device (16,20)

-wherein so determine described the first time span of forecast (PH1 is to PH5), make described controlled quentity controlled variable ask for device (16,20) and when the controlled quentity controlled variable (S, S ') of asking for by its output, consider that at least one is the state that at least one section (14) of described rolled piece (1) is predicted, expects this state concerning at least one section (14) of described rolled piece (1) in the part of appliance (3) of described postposition.

2. press control method claimed in claim 1,

It is characterized in that,

-described control device (10) is realized respectively a controlled quentity controlled variable for each section (14) of described rolled piece (1) and is asked for device (16), this controlled quentity controlled variable is asked for device (16) and in the whole process of passing of the corresponding section (14) of described rolled piece (1), as local controlled quentity controlled variable, is asked for device (16) from treatment facility to keep being coupled to the corresponding section (14) of described rolled piece (1) upper, and

-when corresponding device (6,15,18) acted on the corresponding section (14) of described rolled piece (1) when upper, the controlled quentity controlled variable of corresponding part is asked for device (16) and just controlled quentity controlled variable (S) is exported to the device (6,15,18) that the state (Z) of the rolled piece (1) on passing is affected partly from treatment facility.

3. press control method claimed in claim 2,

It is characterized in that, at least one Plant arrangement in the device that the state of the rolled piece passing from treatment facility (1) (Z) is affected partly (15,18) is in described preposition part of appliance (2).

4. by the control method described in claim 2 or 3,

It is characterized in that, what described control device (10) was configured to unification is not the control device that whole treatment facility is controlled (10) that is divided into a plurality of sub-control device, or described control device (10) is although be divided into a plurality of sub-control device (22), and it is upper accomplished at same sub-control device (22) in the whole process of passing from treatment facility of the corresponding section (14) of described rolled piece (1) that corresponding local controlled quentity controlled variable is asked for device (16).

5. press the control method described in any one in the claims 1 to 3,

It is characterized in that, described control device (10) is realized a controlled quentity controlled variable for all sections (14) of rolled piece (1) and is asked for device (20), and this controlled quentity controlled variable is asked for device (20) and asked for as overall controlled quentity controlled variable the mass flow that device (20) acts on rolled piece (1).

6.by control method claimed in claim 4,

7.by the control method described in claim 2 or 3, wherein said control device (10) is realized a controlled quentity controlled variable for all sections (14) of rolled piece (1) and is asked for device (20), this controlled quentity controlled variable is asked for device (20) and is asked for as overall controlled quentity controlled variable the mass flow that device (20) acts on rolled piece (1)

It is characterized in that,

-by the controlled quentity controlled variable of described part, ask for the controlled quentity controlled variable (S) that device (16) tries to achieve according to the mode explained above be first temporary transient controlled quentity controlled variable (S), the controlled quentity controlled variable of wherein said part is asked for device (16) and is not changed and under this hypothesis, try to achieve described temporary transient controlled quentity controlled variable (S) at the mass flow curve of current generation

The controlled quentity controlled variable of-described the overall situation is asked for device (20) and is tried to achieve new mass flow curve by means of input parameter,

-described input parameter at least comprises by local controlled quentity controlled variable asks for temporary transient controlled quentity controlled variable (S) and at least one the assessment parameter for described temporary transient controlled quentity controlled variable (S) that device (16) is tried to achieve, wherein said assessment parameter is minimum possible controlled quentity controlled variable, the controlled quentity controlled variable of maximum possible, the variation of the controlled quentity controlled variable of maximum possible or the median between the possible controlled quentity controlled variable of minimum and the controlled quentity controlled variable of maximum possible, and

The controlled quentity controlled variable of-described part is asked for device (16) and is tried to achieve its final controlled quentity controlled variable (S) by means of mass flow curve and the new mass flow curve of described temporary transient controlled quentity controlled variable (S), current generation.

8.by control method claimed in claim 4, wherein said control device (10) is realized a controlled quentity controlled variable for all sections (14) of rolled piece (1) and is asked for device (20), this controlled quentity controlled variable is asked for device (20) and is asked for as overall controlled quentity controlled variable the mass flow that device (20) acts on rolled piece (1)

It is characterized in that,

9.by control method claimed in claim 7,

It is characterized in that, described input parameter also comprise rolled piece (1) at least one also do not enter into the state of expecting of the section (14) of preposition part of appliance (2), and/or by the controlled quentity controlled variable of corresponding part, ask for the temporary transient controlled quentity controlled variable of expecting that device (16) tries to achieve and the assessment parameter of corresponding correspondence for this section (14) of described rolled piece (2).

10.by control method claimed in claim 8,

11.by the control method described in any one in the claims 1 to 3,

It is characterized in that,

-described at least one controlled quentity controlled variable is asked for device (16,20) and respectively a controlled quentity controlled variable (S, S ') is exported to the device (6,15,18,21) that the state (Z) of at least one section in the section (14) of the rolled piece (1) on passing is affected in a plurality of moment from treatment facility

The time interval of in-described moment first constantly and between second moment is less than the first time span of forecast (PH1 is to PH5),

-described at least one controlled quentity controlled variable is asked for device (16,20) and is asked for for trying to achieve the controlled quentity controlled variable (S, S ') of first moment output in the described moment controlled quentity controlled variable of constantly expecting for second in the described moment, and

-described at least one controlled quentity controlled variable ask for device (16,20) ask in time in the described moment second constantly after, but also during the state of predicting within the first time span of forecast (PH1 is to PH5), the controlled quentity controlled variable of expecting for the moment second in the described moment is taken in.

12.by control method claimed in claim 4,

It is characterized in that,

13.by the control method described in claim 11,

It is characterized in that, described at least one controlled quentity controlled variable is asked for the adjuster that device (16,20) is configured to model pre-estimating.

14.by the control method described in claim 12,

15.by the control method described in any one in the claims 1 to 3,

It is characterized in that, so determine described the first time span of forecast (PH1 is to PH5), make its at least from affecting first the state (Z) in the rolled piece (1) preposition part of appliance (2), extend to always described rolled piece (1) from rearmounted part of appliance (3) out.

16.by control method claimed in claim 4,

17.by the control method described in any one in claims 1 to 3,

It is characterized in that, described control device (10) is tried to achieve the state of expecting within the second time span of forecast of corresponding device (6,15,18,21) for affecting at least one device in the device (6,15,18,21) of state (Z) of rolled piece (1), and described control device (10), asking for when being asked for device (16,20) and exported to the controlled quentity controlled variable (S, S ') of corresponding device (6,15,18,21) by controlled quentity controlled variable, takes in the state of expecting in the second time span of forecast of corresponding device (6,15,18,21).

18.by control method claimed in claim 4,

19.by the control method described in any one in the claims 1 to 3,

It is characterized in that, described controlled quentity controlled variable is asked for device (16,20) and is tried to achieve described controlled quentity controlled variable (S, S ') by the optimization of object function, wherein, except the deviation that departs from corresponding rated condition of the state of predicting of at least one section (14) of rolled piece (1), the energy consumption of described treatment facility also joins in described object function.

20.by control method claimed in claim 4,

21.by control method claimed in claim 1,

It is characterized in that,

The rolled piece of described prolongation (1) is banded rolled piece.

22.control device for the treatment facility of rolled piece (1), is characterized in that, this control device so forms, make its be in operation carry out have by the control method described in any one in claim 1 to 21 control method in steps.

23.by the control device described in claim 22,

It is characterized in that,

The rolled piece of described prolongation (1) is banded rolled piece.