WO2011033615A1 - 制御装置及び圧延機の制御装置 - Google Patents
制御装置及び圧延機の制御装置 Download PDFInfo
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- WO2011033615A1 WO2011033615A1 PCT/JP2009/066127 JP2009066127W WO2011033615A1 WO 2011033615 A1 WO2011033615 A1 WO 2011033615A1 JP 2009066127 W JP2009066127 W JP 2009066127W WO 2011033615 A1 WO2011033615 A1 WO 2011033615A1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control
- G05B7/02—Arrangements for obtaining smooth engagement or disengagement of automatic control electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/416—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper control
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/41—Servomotor, servo controller till figures
- G05B2219/41131—Enter manually a compensation, correction for a better positioning
Definitions
- the present invention relates to a control device that automatically controls a predetermined device, and can manually correct the operation of the device when necessary.
- an automatic control signal is output so that the operation of the device is stabilized in a desired state, and the drive device is controlled.
- some devices that perform such automatic control include a manual intervention device that is operated by a person so that the operation of the device can be manually adjusted.
- a manual intervention device that is operated by a person so that the operation of the device can be manually adjusted.
- the operator operates the manual intervention device to output a manual control signal and manually correct the operation of the device. ing.
- the drive device that drives the device is always controlled (with a predetermined period) by an automatic control signal.
- an automatic control signal since manual control is generally given priority, when a manual correction signal is output as a signal having the same polarity as the automatic control signal, the device operates so as to deviate from the target value. That is, there is a possibility that the apparatus cannot be stably controlled because of over correction.
- automatic control when the operation of a device suddenly deviates from a target value, the response is often increased by increasing the control gain. In such a case, the automatic control signal and the manual correction signal overlap, and the control system tends to become unstable.
- the present invention has been made to solve the above-described problems, and its object is to suppress over-correction when manual intervention is performed on the operation control of the device, and to operate the device in a desired state. It is providing the control apparatus which can be controlled stably, and the control apparatus of a rolling mill.
- the control device is based on a drive device that drives a predetermined device to cause the device to perform mechanical work, a calculation element that derives a target value related to the operation of the device, and a target value that is derived by the calculation element
- An automatic control device that outputs an automatic control signal to the drive device so that the operation of the device is stabilized in a desired state, a manual intervention device that is operated when manually correcting the operation of the device, and a manual intervention device
- a manual intervention controller Based on a manual intervention controller that outputs a manual correction signal to the drive device according to an operation performed on the drive, an automatic control signal output from the automatic control device, and a manual correction signal output from the manual intervention controller
- a manual corrector that determines whether or not there is an overcorrection by manual operation, and outputs a manual correction signal output from the manual intervention controller to the drive device by multiplying a predetermined gain adjustment value by a predetermined gain adjustment value.
- a control apparatus for a rolling mill includes a plurality of rolling stands and a looper provided between adjacent rolling stands, and controls the height of the looper and a rolling stand provided on the upstream side of the looper.
- a control device for a rolling mill that performs tension control of the material to be rolled that passes through the upstream rolling stand by performing speed control on the roll drive motor of the roll drive motor, and includes a command value and a detection value for the tension of the material to be rolled.
- a tension controller that outputs a tension control signal based on the deviation, a looper height controller that outputs a looper height control signal based on the deviation between the command value and the detected value for the predetermined looper height, and a roll
- the speed of the roll drive motor based on the speed command signal for the drive motor, the tension control signal output from the tension controller, and the looper height control signal output from the looper height controller.
- An automatic controller that outputs an automatic control signal for the roll drive motor, a manual intervention device that is operated when manually correcting the speed of the roll drive motor, and a manual intervention device so as to be stable in a desired state.
- a speed corrector that outputs a speed correction signal for the roll drive motor, an automatic control signal that is output from the automatic controller, and a speed correction signal that is output from the speed corrector.
- a manual correction amount adjuster that determines whether or not correction is performed, and multiplies the speed correction signal output from the speed corrector by a predetermined gain adjustment value and outputs the result to the roll drive motor.
- a control device for a rolling mill includes a plurality of rolling stands and a looper provided between adjacent rolling stands, and is provided on the upstream side of the looper with height control for the looper. It is a control device for a rolling mill that controls the tension of the material to be rolled that passes through the upstream rolling stand by performing speed control on the roll drive motor of the rolling stand, and a load acting on the roll of the upstream rolling stand.
- a tension detector that detects the tension of the material to be rolled, and a tension that outputs a tension control signal based on a deviation between a value detected by the tension detector and a predetermined tension command value.
- a looper height detector that detects the height of the looper, and a looper that outputs a looper height control signal based on a deviation between a value detected by the looper height detector and a predetermined looper height command value.
- the speed of the roll drive motor is desired based on the height controller, the speed command signal for the roll drive motor, the tension control signal output from the tension controller, and the looper height control signal output from the looper height controller.
- the automatic controller that outputs an automatic control signal to the roll drive motor, the manual intervention device that is operated when manually correcting the speed of the roll drive motor, and the manual intervention device Based on the speed corrector that outputs a speed correction signal for the roll drive motor, the automatic control signal output from the automatic controller, and the speed correction signal output from the speed corrector.
- a manual correction amount adjuster that determines whether or not there is an overcorrection by manual operation, and multiplies the speed correction signal output from the speed corrector by a predetermined gain adjustment value and outputs it to the roll drive motor. .
- the present invention it is possible to suppress over-correction when manual intervention is performed on the operation control of the device, and to stably control the operation of the device in a desired state.
- Embodiment 1 of this invention It is a block diagram which shows the control apparatus in Embodiment 1 of this invention. It is a figure for demonstrating operation
- FIG. 1 is a block diagram showing a control device according to Embodiment 1 of the present invention.
- reference numeral 1 denotes a device that performs a predetermined mechanical work.
- This device 1 is driven by a driving device 2.
- 3 is a mechanical element that converts the driving force of the driving device 2 into the predetermined mechanical work in order to cause the device 1 to perform a predetermined operation
- 4 is a predetermined physical quantity (for example, speed) related to the device 1.
- the detector 5 is a calculation element that derives a predetermined target value related to the operation of the device 1 by calculation according to the situation or the like.
- the detector 4 only needs to be able to detect the physical quantity directly or indirectly, and the detection target may be the drive device 2, the mechanical element 3, or another element in addition to the device 1.
- the automatic control device 6 is an automatic control device for performing automatic control on the drive device 2.
- the automatic control device 6 sends an automatic control signal to the drive device 2 so that the operation of the device 1 is stabilized in a desired state based on the target value derived by the calculation element 5 and the detection value by the detector 4. Is output.
- the automatic control device 6 controls the driving device 2 so that the operation of the device 1 follows the target value by calculating a deviation between the target value and the detected value.
- the driving device 2 responds according to the input automatic control signal and causes the device 1 to perform mechanical work.
- the control device is a manual intervention device operated when the operation of the device 1 is manually corrected.
- the control device has a function capable of manually adjusting the operation of the device 1. For example, when the operation of the device 1 suddenly deviates from the target value due to disturbance or the like, the operation of the device 1 is manually corrected by operating the manual intervention device 7 when the operator recognizes the phenomenon.
- the manual intervention controller 8 is a manual intervention controller that converts a manual operation performed by an operator or the like into a control signal for the driving device 2. That is, the manual intervention controller 8 outputs a manual correction signal for the drive device 2 in accordance with an operation performed on the manual intervention device 7.
- the manual corrector 9 is a manual corrector that adjusts the gain of the manual correction signal and outputs the adjustment signal to the drive unit 2.
- the manual corrector 9 determines whether or not the manual correction by the manual intervention device 7 can be overcorrected, and determines a gain adjustment value to be multiplied by the manual correction signal based on the determination result, and multiplies the function. And a function of outputting a signal to the driving device 2.
- the above functions are realized by a gain controller 10 provided in the manual corrector 9.
- FIGS. 2 and 3 are diagrams for explaining the operation of the manual corrector shown in FIG.
- the gain controller 10 When a manual correction signal is input from the manual intervention controller 8, the gain controller 10 performs overcorrection due to manual intervention based on the manual correction signal and the automatic control signal output from the automatic control device 6 at that time. Determine the possibility.
- the gain controller 10 determines a gain adjustment value based on the determination result, and outputs the gain adjustment value to the drive device 2 by multiplying the gain adjustment value by the manual correction signal input from the manual intervention controller 8.
- the determination of the presence or absence of overcorrection is performed by, for example, whether or not the automatic control signal and the manual correction signal have the same polarity, that is, the control direction of the driving device 2 by the automatic control signal and the control of the driving device 2 by the manual correction signal. This is done depending on whether the direction is the same.
- the gain controller 10 acquires the automatic control signal at that time from the automatic control device 6, outputs the output direction ⁇ of the manual correction signal ⁇ Vman, and the automatic control signal. It is determined whether or not the output direction ⁇ of ⁇ V_cnt has the same polarity.
- the gain controller 10 derives ⁇ and ⁇ by the above formula, and compares whether ⁇ and ⁇ have the same polarity. Then, the gain controller 10 determines that overcorrection may occur when the polarities of ⁇ and ⁇ are the same, and performs gain adjustment so that the manual intervention correction amount is suppressed.
- the manual correction signal is multiplied by a predetermined value less than 1 (for example, 0.8) and output to the drive device 2.
- a predetermined value for example, 0.8
- the gain controller 10 outputs the manual correction signal output from the manual intervention controller 8 to the drive device 2 as it is, so that a manual operation by an operator or the like is performed. The operation is reflected in the operation of the device 1 as it is.
- the manual correction signal output from the manual intervention controller 8 may be input to the drive device 2 as it is without going through gain adjustment by the gain controller 10. Further, as shown in FIG. 3, the gain adjuster 10 always performs gain adjustment on the manual correction signal output from the manual intervention controller 8 regardless of the polarities of ⁇ and ⁇ , and obtains the difference between ⁇ and ⁇ .
- a predetermined value for example, 1
- the gain adjustment value when the polarities are the same may be multiplied and output to the driving device 2.
- a signal obtained by adding an automatic control signal from the automatic control device 6 and a manual correction signal (a signal after gain adjustment) from the manual corrector 9 is added to the drive device 2 as a total control amount.
- the output is shown.
- FIG. 4 is a configuration diagram showing a rolling mill control apparatus according to Embodiment 1 of the present invention.
- 11 and 12 are rolling rolls (hereinafter also simply referred to as “rolls”) for rolling the material to be rolled 13, 14 is a looper for controlling the tension of the material 13 between the rolls 11 and 12, 15 Is a roll drive motor that rotationally drives the roll 11, and 16 is a looper drive motor that drives the looper 14.
- An arrow A indicates the moving direction of the material to be rolled 13. That is, the roll drive motor 15 drives the roll 11 of the rolling stand provided on the upstream side of the looper 14.
- the control device shown in FIG. 4 performs the height control with respect to the looper 14 and the speed control with respect to the roll drive motor 15, thereby passing the roll 11, that is, passing through the rolling stand on the upstream side of the looper 14.
- Tension control is performed.
- a continuous rolling mill a plurality of rolling stands are installed, and a looper is provided between adjacent rolling stands. And the same control is performed with respect to a looper and the rolling stand of the upstream.
- FIG. 4 corresponds to a continuous rolling mill having only two adjacent rolling stands.
- 17 is a load detector, which detects the load acting on the roll 11.
- a torque detector 18 detects the torque of the roll drive motor 15.
- Reference numeral 19 denotes an acceleration detector that detects the acceleration of the roll drive motor 15.
- Each detector shown in 17 to 19 may be configured by any means as long as it has the above functions.
- the tension controller 21 outputs a tension control signal.
- the tension controller 21 calculates, for example, a deviation between a tension command value for the material 13 to be rolled obtained by a predetermined calculation and the detected tension value by the tension detector 20 as a feedback signal. Outputs tension control signal.
- 22 is a looper height detector that detects the height of the looper 14
- 23 is a looper height controller that outputs a looper height control signal.
- the looper height controller 23 calculates a deviation between a height command value for the looper 14 obtained by a predetermined calculation or the like and a detected value of the looper height by the looper height detector 22 to return the looper.
- a looper height control signal is output as a signal.
- the speed control device 24 is a speed control device for controlling the speed of the roll drive motor 15.
- the speed control device 24 includes an automatic controller 25 having an automatic control function and a manual correction amount adjuster 26 having a correction function at the time of manual intervention.
- the automatic controller 25 controls the roll drive motor 15 so that the speed of the roll drive motor 15 is stabilized in a desired state based on the target value for the speed of the roll drive motor 15 and the detection values by various detectors. Output an automatic control signal.
- the automatic controller 25 adds the tension control signal from the tension controller 21 and the loop height control from the looper height controller 23 to the speed command signal calculated as the target value by the predetermined calculator 27.
- the automatic control signal is obtained by adding the signal.
- the roll drive motor 15 drives the roll 11 in response to the input automatic control signal, and maintains the tension of the material 13 to be rolled in an appropriate state.
- Numeral 28 is a manual intervention device operated when manually correcting the rolling speed of the roll 11, that is, the speed of the roll drive motor 15.
- the manual intervention device 28 is operated by, for example, an operator who visually monitors the operation state of the rolling mill.
- a speed corrector 29 converts a manual operation performed by an operator or the like into a control signal for the roll drive motor 15. That is, the speed corrector 29 outputs a speed correction signal for the roll drive motor 15 in accordance with the operation performed on the manual intervention device 28.
- the manual correction amount adjuster 26 in the speed control device 24 has a function of performing gain adjustment on the speed correction signal and outputting the adjustment signal to the roll drive motor 15. Specifically, the manual correction amount adjuster 26 determines a function for determining whether or not the manual correction by the manual intervention device 28 can be overcorrected, and determines a gain adjustment value to be multiplied by the speed correction signal based on the determination result. And the function of outputting the multiplied signal to the roll drive motor 15.
- specific functions of the manual correction amount adjuster 26 will be described with reference to FIGS.
- the manual correction amount adjuster 26 When the speed correction signal is input from the speed corrector 29, the manual correction amount adjuster 26 performs overcorrection by manual intervention based on the speed correction signal and the automatic control signal output from the automatic controller 25 at that time. Determine the possibility.
- the manual correction amount adjuster 26 determines a gain adjustment value based on the determination result, and outputs the gain adjustment value to the roll drive motor 15 by multiplying the speed correction signal input from the speed corrector 29. .
- the automatic correction signal and the speed correction signal have the same polarity, that is, whether the automatic control signal and the speed correction signal have the same control direction with respect to the roll drive motor 15 is determined. Depending on whether or not there is. For example, when the speed correction signal is input from the speed corrector 29, the manual correction amount adjuster 26 acquires the automatic control signal at that time from the automatic controller 25, and outputs the output direction ⁇ of the speed correction signal ⁇ Vman and the automatic control. It is determined whether or not the output direction ⁇ (corresponding to ⁇ above) of the signal ⁇ V_lp has the same polarity.
- the manual correction amount adjuster 26 derives ⁇ and ⁇ according to the above formula, and compares whether ⁇ and ⁇ have the same polarity. Then, the manual correction amount adjuster 26 determines that overcorrection can occur when the polarities of ⁇ and ⁇ are the same, and performs gain adjustment so that the correction amount due to manual intervention is suppressed.
- the speed correction signal is multiplied by a predetermined value less than 1 (for example, 0.8) and output to the roll drive motor 15. ⁇ > 0 and ⁇ > 0 (9) ⁇ ⁇ 0 and ⁇ ⁇ 0 (10)
- the speed correction signal output from the speed corrector 29 may be directly input to the roll drive motor 15 without the gain adjustment by the manual correction amount adjuster 26.
- the manual correction amount adjuster 26 always performs gain adjustment on the speed correction signal output from the speed corrector 29 regardless of the polarities of ⁇ and ⁇ , and ⁇ and ⁇ May be output to the roll drive motor 15 by multiplying a predetermined value (for example, 1) larger than the gain adjustment value when the polarities are the same.
- Embodiment 1 of the present invention even when manual intervention is performed on the operation control of the device 1, overcorrection due to manual intervention is suppressed, and the operation of the device 1 is stabilized in a desired state. Will be able to control.
- the control device is a device that automatically controls the operation of the device, and can be applied to a device that can manually adjust the operation of the device.
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Abstract
Description
図1はこの発明の実施の形態1における制御装置を示す構成図である。
図1において、1は所定の機械的仕事を行う機器である。この機器1は駆動装置2によって駆動される。3は機器1に所定の動作を行わせるために、駆動装置2の駆動力を上記所定の機械的仕事に変換する機械要素、4は機器1に関する所定の物理量(例えば、速度等)を検出する検出器、5は機器1の動作に関する所定の目標値を、状況等に応じて演算によって導き出す計算要素である。なお、検出器4は、上記物理量を直接的或いは間接的に検出できれば良く、その検出対象は機器1の他、駆動装置2、機械要素3或いは他の要素であっても構わない。
AVEman={ΣΔVman[n-(m-1)]}/4 [m=1-4] ‥(1)
とすると、上記出力方向Δαは次式によって表される。
Δα=[(ΔVman(n)-AVE)*1.5+(ΔVman(n-1)-AVE)*0.5+
(ΔVman(n-2)-AVE)*(-1.5)+(ΔVman(n-3)-AVE)*(-0.5)]/5 ‥(2)
AVE_cnt={ΣΔV_cnt[n-(m-1)]}/4 [m=1-4] ‥(3)
とすると、上記出力方向Δβは次式によって表される。
Δβ=[(ΔV_cnt(n)-AVE)*1.5+(ΔV_cnt(n-1)-AVE)*0.5+
(ΔV_cnt(n-2)-AVE)*(-1.5)+ (ΔV_cnt(n-3)-AVE)*(-0.5)]/5 ‥(4)
Δα>0 且つ Δβ>0 ‥(5)
Δα<0 且つ Δβ<0 ‥(6)
なお、連続圧延機においては、複数台の圧延スタンドが設置され、隣接する各圧延スタンド間にルーパが備えられている。そして、ルーパとその上流側の圧延スタンドとに対して同様の制御が行われる。図4は、このような連続圧延機のうち、隣接する2台の圧延スタンドのみを示したものに相当する。
また、
AVE_lp={ΣΔV_lp[n-(m-1)]}/4 [m=1-4] ‥(7)
とすると、上記出力方向Δγは次式によって表される。
Δγ=[(ΔV_lp(n)-AVE)*1.5+(ΔV_lp(n-1)-AVE)*0.5+
(ΔV_lp(n-2)-AVE)*(-1.5)+ (ΔV_lp(n-3)-AVE)*(-0.5)]/5 ‥(8)
Δα>0 且つ Δγ>0 ‥(9)
Δα<0 且つ Δγ<0 ‥(10)
2 駆動装置
3 機械要素
4 検出器
5 計算要素
6 自動制御装置
7 手動介入器
8 手動介入制御器
9 手動修正器
10 ゲイン制御器
11、12 圧延ロール
13 被圧延材
14 ルーパ
15 ロール駆動電動機
16 ルーパ駆動電動機
17 荷重検出器
18 トルク検出器
19 加速度検出器
20 張力検出器
21 張力制御器
22 ルーパ高さ検出器
23 ルーパ高さ制御器
24 速度制御装置
25 自動制御器
26 手動修正量調整器
27 演算器
28 手動介入器
29 速度修正器
Claims (9)
- 所定の機器を駆動して、前記機器に機械的仕事を行わせる駆動装置と、
前記機器の動作に関する目標値を導き出す計算要素と、
前記計算要素によって導き出された目標値に基づいて、前記機器の動作が所望の状態で安定するように、前記駆動装置に対する自動制御信号を出力する自動制御装置と、
前記機器の動作を手動修正する際に操作される手動介入器と、
前記手動介入器に対して行われた操作に応じ、前記駆動装置に対する手動修正信号を出力する手動介入制御器と、
前記自動制御装置から出力された自動制御信号と前記手動介入制御器から出力された手動修正信号とに基づいて手動操作による過補正の有無を判断し、前記手動介入制御器から出力された手動修正信号に所定のゲイン調整値を掛けて前記駆動装置に出力する手動修正器と、
を備えたことを特徴とする制御装置。 - 前記手動修正器は、
前記自動制御装置から出力された自動制御信号及び前記手動介入制御器から出力された手動修正信号が同じ極性を有する場合は、手動修正信号に所定のゲイン調整値を掛けて前記駆動装置に出力し、
前記各信号が異なる極性を有する場合は、手動修正信号に他の所定のゲイン調整値を掛けて前記駆動装置に出力する
ことを特徴とする請求項1に記載の制御装置。 - 前記各信号が同じ極性を有する場合のゲイン調整値は1未満の所定値であり、
前記各信号が異なる極性を有する場合のゲイン調整値は1である
ことを特徴とする請求項2に記載の制御装置。 - 前記手動修正器は、
前記自動制御装置から出力された自動制御信号及び前記手動介入制御器から出力された手動修正信号が同じ極性を有する場合は、手動修正信号に1未満の所定のゲイン調整値を掛けて前記駆動装置に出力し、
前記各信号が異なる極性を有する場合は、前記手動介入制御器から出力された手動修正信号をそのまま前記駆動装置に出力する
ことを特徴とする請求項1に記載の制御装置。 - 複数台の圧延スタンドと、
隣接する前記圧延スタンド間に設けられたルーパと、
を備え、
前記ルーパに対する高さ制御と、前記ルーパの上流側に設けられた前記圧延スタンドのロール駆動電動機に対する速度制御とを行うことにより、前記上流側圧延スタンドを通過する被圧延材の張力制御を行う圧延機の制御装置であって、
前記被圧延材の張力に対する指令値と検出値との偏差に基づいて、張力制御信号を出力する張力制御器と、
前記所定ルーパの高さに対する指令値と検出値との偏差に基づいて、ルーパ高さ制御信号を出力するルーパ高さ制御器と、
前記ロール駆動電動機に対する速度指令信号及び前記張力制御器から出力された張力制御信号、前記ルーパ高さ制御器から出力されたルーパ高さ制御信号に基づいて、前記ロール駆動電動機の速度が所望の状態で安定するように、前記ロール駆動電動機に対する自動制御信号を出力する自動制御器と、
前記ロール駆動電動機の速度を手動修正する際に操作される手動介入器と、
前記手動介入器に対して行われた操作に応じ、前記ロール駆動電動機に対する速度修正信号を出力する速度修正器と、
前記自動制御器から出力された自動制御信号と前記速度修正器から出力された速度修正信号とに基づいて手動操作による過補正の有無を判断し、前記速度修正器から出力された速度修正信号に所定のゲイン調整値を掛けて前記ロール駆動電動機に出力する手動修正量調整器と、
を備えたことを特徴とする圧延機の制御装置。 - 複数台の圧延スタンドと、
隣接する前記圧延スタンド間に設けられたルーパと、
を備え、
前記ルーパに対する高さ制御と、前記ルーパの上流側に設けられた前記圧延スタンドのロール駆動電動機に対する速度制御とを行うことにより、前記上流側圧延スタンドを通過する被圧延材の張力制御を行う圧延機の制御装置であって、
前記上流側圧延スタンドのロールに作用する荷重を検出する荷重検出器と、
前記ロール駆動電動機のトルクを検出するトルク検出器と、
前記ロール駆動電動機の加速度を検出する加速度検出器と、
前記荷重検出器及び前記トルク検出器、前記加速度検出器の各検出結果に基づいて、前記被圧延材の張力を検出する張力検出器と、
前記張力検出器による検出値と所定の張力指令値との偏差に基づいて、張力制御信号を出力する張力制御器と、
前記ルーパの高さを検出するルーパ高さ検出器と、
前記ルーパ高さ検出器による検出値と所定のルーパ高さ指令値との偏差に基づいて、ルーパ高さ制御信号を出力するルーパ高さ制御器と、
前記ロール駆動電動機に対する速度指令信号及び前記張力制御器から出力された張力制御信号、前記ルーパ高さ制御器から出力されたルーパ高さ制御信号に基づいて、前記ロール駆動電動機の速度が所望の状態で安定するように、前記ロール駆動電動機に対する自動制御信号を出力する自動制御器と、
前記ロール駆動電動機の速度を手動修正する際に操作される手動介入器と、
前記手動介入器に対して行われた操作に応じ、前記ロール駆動電動機に対する速度修正信号を出力する速度修正器と、
前記自動制御器から出力された自動制御信号と前記速度修正器から出力された速度修正信号とに基づいて手動操作による過補正の有無を判断し、前記速度修正器から出力された速度修正信号に所定のゲイン調整値を掛けて前記ロール駆動電動機に出力する手動修正量調整器と、
を備えたことを特徴とする圧延機の制御装置。 - 前記手動修正量調整器は、
前記自動制御器から出力された自動制御信号と前記速度修正器から出力された速度修正信号とについて、前記ロール駆動電動機に対する制御方向が同じ場合は、手動修正信号に所定のゲイン調整値を掛けて前記駆動装置に出力し、
前記各信号について、前記ロール駆動電動機に対する制御方向が異なる場合は、手動修正信号に他の所定のゲイン調整値を掛けて前記駆動装置に出力する
ことを特徴とする請求項5又は請求項6に記載の圧延機の制御装置。 - 前記ロール駆動電動機に対する制御方向が同じ場合のゲイン調整値は1未満の所定値であり、
前記ロール駆動電動機に対する制御方向が異なる場合のゲイン調整値は1である
ことを特徴とする請求項7に記載の圧延機の制御装置。 - 前記手動修正量調整器は、
前記自動制御器から出力された自動制御信号と前記速度修正器から出力された速度修正信号とについて、前記ロール駆動電動機に対する制御方向が同じ場合は、手動修正信号に1未満の所定のゲイン調整値を掛けて前記駆動装置に出力し、
前記各信号について、前記ロール駆動電動機に対する制御方向が異なる場合は、前記手動介入制御器から出力された手動修正信号をそのまま前記駆動装置に出力する
ことを特徴とする請求項5又は請求項6に記載の圧延機の制御装置。
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KR1020127005633A KR101321608B1 (ko) | 2009-09-16 | 2009-09-16 | 제어 장치 및 압연기의 제어 장치 |
JP2011531684A JP5382128B2 (ja) | 2009-09-16 | 2009-09-16 | 制御装置及び圧延機の制御装置 |
PCT/JP2009/066127 WO2011033615A1 (ja) | 2009-09-16 | 2009-09-16 | 制御装置及び圧延機の制御装置 |
US13/390,126 US8805569B2 (en) | 2009-09-16 | 2009-09-16 | Controller and controller of rolling mill |
CN200980161519.5A CN102574176B (zh) | 2009-09-16 | 2009-09-16 | 控制装置及轧机的控制装置 |
TW098142677A TWI412912B (zh) | 2009-09-16 | 2009-12-14 | 控制裝置及壓軋機之控制裝置 |
HK12111845.0A HK1170981A1 (en) | 2009-09-16 | 2012-11-20 | Controller and controller for rolling mill |
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US10307806B2 (en) * | 2014-09-16 | 2019-06-04 | Nippon Steel & Sumitomo Metal Corporation | Rolling control method for metal strip, rolling control apparatus, and manufacturing method for rolled metal strip |
CN109226272B (zh) * | 2018-11-02 | 2020-02-11 | 马鞍山钢铁股份有限公司 | 防止可逆h型钢万能粗轧机组异常手动倒钢的控制方法 |
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HK1170981A1 (en) | 2013-03-15 |
TWI412912B (zh) | 2013-10-21 |
JPWO2011033615A1 (ja) | 2013-02-07 |
TW201111943A (en) | 2011-04-01 |
CN102574176B (zh) | 2015-01-07 |
CN102574176A (zh) | 2012-07-11 |
JP5382128B2 (ja) | 2014-01-08 |
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