JPS598020A - Gate controlling system - Google Patents
Gate controlling systemInfo
- Publication number
- JPS598020A JPS598020A JP11670382A JP11670382A JPS598020A JP S598020 A JPS598020 A JP S598020A JP 11670382 A JP11670382 A JP 11670382A JP 11670382 A JP11670382 A JP 11670382A JP S598020 A JPS598020 A JP S598020A
- Authority
- JP
- Japan
- Prior art keywords
- gate
- water storage
- target opening
- level
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Feedback Control In General (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
Description
【発明の詳細な説明】
本発明Cよ、ゲートの制御方式に係り、特に、貯水位、
流入量からゲートの目標開度を計算して制御するのに好
適なゲート制御方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention C relates to a gate control method, in particular, the water level,
The present invention relates to a gate control method suitable for calculating and controlling a target opening degree of a gate from an inflow amount.
従来のゲートの制御方式は、ゲート開度、水位全計測し
、基準水位との偏差や流入量から最終目標開度を計算し
、ゲートの1回の動作量を制限したタイマー(ゲートの
動作速度を2秒/Crnとした場合、1回の動作t′f
t:30cmとすれば60秒のタイマーを設定し制御装
置からのゲート開閉指令を連続でも60秒以上続けて出
力するのを防ぐ目的のタイマーでゲートの過動作防止タ
イマーと呼ぶ)の設定値以内で一旦ゲートの制御全停止
し再度ゲートの制御ケ続は最終の目標開度で制御を完全
に停止させていたが、その目標開度の計算過程に誤りが
あった場合でも過動作タイマー制限全呼りながら最終目
標開度までグーIf制御するという欠点があった。Conventional gate control methods measure the gate opening and water level, calculate the final target opening from the deviation from the reference water level and the inflow, and set a timer (gate operating speed) that limits the amount of gate operation per time. When 2 seconds/Crn, one operation t′f
If t: 30 cm, set a 60 second timer and keep it within the set value of the gate overoperation prevention timer (a timer whose purpose is to prevent the control device from outputting gate opening/closing commands for more than 60 seconds in a row). The gate control was once completely stopped, and the gate control sequence was stopped completely at the final target opening, but even if there was an error in the process of calculating the target opening, the overoperation timer limit would still be applied. There was a drawback that the control was performed until the final target opening degree was controlled while calling.
特に、下流の水位と上流の水位及び開度から放流量を計
算する河口堰では、制御するときの目標放流量が少なく
ても(上流と下流の水位差が小さい)ゲートの目標開度
は太きくなり、現状の開度から大きく変化するため、計
算した目標開度が誤った値なのか、正しい値なのか判断
できず、操作員の不安をもたせた1ま、制御1していた
。In particular, for estuary weirs where the discharge amount is calculated from the downstream water level, upstream water level, and opening degree, even if the target discharge amount during control is small (the difference in water level between upstream and downstream is small), the target opening degree of the gate is large. Since the valve opening changed greatly from the current opening, it was not possible to determine whether the calculated target opening was an incorrect value or the correct value, causing operator anxiety.
本発明の目的は、ゲートの制御方式において、計算しf
C最終の目標開度の妥当性を評価し畠度な安全性をもた
せたゲートの制御方式を提供することにある。An object of the present invention is to calculate f in a gate control method.
C. It is an object of the present invention to provide a gate control method that evaluates the validity of the final target opening degree and provides complete safety.
本発明は、ゲート制御装置で計算した最終目標開度音用
いてグートヲ制御した場合に貯水位や貯水量がどの様に
変化していくか予想し、その変化した値が、あらかじめ
定められた時間、日単位の貯水位、貯水量変化及び許容
範囲に入っているかどうか全チェックし、範囲外であれ
ば、計算した最終目標開度に対してのゲート制御を行な
わないで、現在実行中のゲート制御全停止させること葡
4を徴とする制御方式である。The present invention predicts how the water level and amount of water will change when the gate control is performed using the final target opening sound calculated by the gate control device, and the changed values are reflected over a predetermined period of time. , check the daily water level, water storage amount change, and whether it is within the allowable range. If it is outside the range, the gate control that is currently being executed will not be performed according to the calculated final target opening degree. This is a control system whose characteristic is to completely stop the control.
以下、本発明の一実施例を第1図から第6図により説明
する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.
従来、制御装置の信頼性、安全性を向上させるためには
第1図(a)のように同一人力A、Bk用いて異なった
装置P1とPヮで全く同一の処理PAR全行ない同一の
処理結果Pl得たときのみ制御する場合と、第1図(b
)に示すように異なった入力ABとA/、 B/を用い
て異なった装置で異なった処理PA’B とPムI、/
を行いその処理結果PとP′が一定の範囲ε以内にある
ときのみ制御していたが、本発明は番2図に示合ずごと
く入力A、Bヶ用い処理PhBk行ない、その処理結果
TPkf吏用して別な処理PTH又はPT v k行な
い、その処理結果T H又I″iTVが一足の範囲(ε
)内にあるどきのみ最初の処理結果TPi制御の目標値
TPとして制御を行なうものである。尚、処理PANと
処理Pr++又はPry は同一の処理装置P1で行な
う処理である。Conventionally, in order to improve the reliability and safety of a control device, as shown in Fig. 1(a), the same human power A and Bk were used to perform exactly the same processing PAR on different devices P1 and Pwa. In the case of controlling only when the result Pl is obtained, and in the case of controlling only when the result Pl is obtained, and
) As shown in FIG.
However, in the present invention, as shown in Figure 2, processing PhBk is performed using inputs A and B, and the processing result TPkf is Then, another process PTH or PT v k is performed, and the processing result T H or I″iTV is within the range (ε
), control is performed using the initial processing result TPi as the target value TP for control. Note that the process PAN and the process Pr++ or Pry are processes performed by the same processing device P1.
第3図は、ゲート制御の一般的なシスデム構成を示す。FIG. 3 shows a general system configuration for gate control.
保護装置(2)、プロセス入出力装置(1)を介し処理
装!(f+)に取り込んだゲート開度(A)、貯水位(
Blをもとに計算した目標開度CPIまで制御する開閉
信号(PON) をゲート駆動装置(3)に対しゲート
モータ入切信号(GONI として出力し、その出力
信号の連続時間を保護装置(2)の過動作タイマで監視
しながらゲート(8)を制御する。Processing equipment via protection device (2) and process input/output device (1)! (f+) is the gate opening degree (A), water level (
The opening/closing signal (PON) that controls up to the target opening degree CPI calculated based on Bl is output as the gate motor on/off signal (GONI) to the gate drive device (3), and the continuous time of the output signal is determined by the protection device (2). ) controls the gate (8) while monitoring it with an over-operation timer.
本発明は処理装置(Pl )で求めた目標開度(Plの
妥当性評価方法にある。The present invention resides in a method for evaluating the validity of the target opening degree (Pl) determined by the processing device (Pl).
第2図でも示した様に、本発明は、開[(A)と水位(
B)をもとに処理(PAn)L、目標開度(TP)を求
める。その目標開度(TP)での貯水位(TH)と貯水
量(TV)を処理(Pro、Ptv)で求め、その値が
あらかじめ定められた範囲(g)に有るとき初めて目標
開度(TP)でゲートを制御する方式である。As shown in FIG.
Based on B), determine the processing (PAn)L and target opening degree (TP). The water level (TH) and water storage amount (TV) at the target opening (TP) are determined by processing (Pro, Ptv), and only when the values are within a predetermined range (g) can the target opening (TP) be reached. ) to control the gate.
第4図に、本発明のタイムチャートの具体例を示す。FIG. 4 shows a specific example of a time chart of the present invention.
現在水位(NH)、現在開度(NP)から計算した目標
開度(TP)まで到達する制御する制御時間(ΔT)は
ゲートの1回の動作時間(1)とゲートの休止時間(1
)から計算する。今、流入量(Q、)を目標開度(TP
)まで到達する時間(ΔT)まで現表流入量(NQ+
)のままとするとTV−f (Qt Qo)dt+
NVT
(a)
TH=F(TV)
TV:目標開度(TP)での貯水量
TH:目標開度(TP)での貯水位
又は、
TV’:ゲート1回目動作(NT+tl後から推測した
NT+ΔT後の貯水量
TH’ :ゲート1回目動作(NT+tj後から推測
したNT+ΔT後の貯水位
となり、目標開度(TP)での貯水量(TV、 TV′
)と貯水位(TH,TH’ lを算出することができる
。The control time (ΔT) to reach the target opening (TP) calculated from the current water level (NH) and the current opening (NP) is the gate operating time (1) and the gate resting time (1).
). Now, the inflow amount (Q,) is set to the target opening (TP).
) until the time (ΔT) to reach the current flow rate (NQ+
), TV-f (Qt Qo)dt+
NVT (a) TH=F(TV) TV: Water storage amount at target opening (TP) TH: Water storage level at target opening (TP) or TV': First gate operation (NT+ΔT estimated from after NT+tl) Later water storage amount TH': The water storage level after NT+ΔT estimated from the first gate operation (NT+tj), and the water storage amount at the target opening (TP) (TV, TV'
) and the water storage level (TH, TH' l) can be calculated.
←)式は、目標開度(TP)まで流入量(Q、 1と放
流量(Q、)の差を考慮して貯水量(TVI、貯水位(
TH)を計算しているが、(′b)式は、目標開度(T
P)゛までゲートを動作させる過程の第1回目の動作(
Nl’−1−1)後の流入量(Ql)と放流量(Q、)
から貯水量(V′)を貯水位(H′)を計算し目標開度
(TP)での貯水量(TV’)と貯水位(THMを計算
している。本発明ではどちらでも可能であるが(b)式
はΔT時時間通過せなくても1時間後に目標開度(TP
)の評価ができる。←) formula calculates the storage volume (TVI) and water storage level (
The target opening degree (T
P) The first operation in the process of operating the gate up to (
Inflow amount (Ql) and discharge amount (Q, ) after Nl'-1-1)
The water storage amount (V') and water storage level (H') are calculated from the water storage amount (V') and water storage level (H'), and the water storage amount (TV') and water storage level (THM) at the target opening degree (TP) are calculated.Either is possible with the present invention. However, equation (b) shows that even if the time ΔT does not pass, the target opening degree (TP
) can be evaluated.
こうして求めた、NT+ΔT時間後の貯水量(TV。The amount of water stored after NT + ΔT time (TV) determined in this way.
TV’ )と貯水位(TH,TH’ )が、あらかじめ
定められた貯水量上限(UV)と下限(LV+、貯水位
上限(UH)と下限(LH)の範囲内にあるかどうか判
定し、範囲内にあれば目標開度(TP)には妥当性があ
るものとして目標開度(TP)までゲート制御を行ない
、貯水1(TV’)のように範囲外のときはゲート制御
を停止するようにした。尚、貯水量(TV、TV’ )
と貯水位(TH。TV') and the water storage level (TH, TH') are within the predetermined ranges of the upper limit (UV) and lower limit (LV+) of the water storage level, and the upper limit (UH) and lower limit (LH) of the water storage level; If it is within the range, it is assumed that the target opening (TP) is valid and the gate control is performed until the target opening (TP) is reached, and if it is outside the range like water storage 1 (TV'), the gate control is stopped. In addition, the amount of water stored (TV, TV')
and water storage level (TH.
THMのいずれか一方でも範囲外であればゲート制御を
停止するものとする。If any one of the THMs is out of range, gate control will be stopped.
第5図に、貯水1(V)、貯水位(■()の時間又−日
単位の上限値(UV、UH)と下限値(LV。FIG. 5 shows the upper limit (UV, UH) and lower limit (LV) of water storage 1 (V), water storage level (■ ()) in hourly or -day units.
LH)をあらかじめ定めた許容幅スケジュール表の一例
を示す。このスケジュールと目標開度(TP 1から求
めた貯水量(TV、TV’ )と貯水位(TH。An example of an allowable width schedule table that predetermines LH) is shown below. This schedule, the target opening (TP), the water storage amount (TV, TV') obtained from 1, and the water storage level (TH).
TH’ )を比較評価することによシ目標開度(TP)
の妥当性を判定することになる。By comparing and evaluating the target opening (TP)
The validity of this will be determined.
第6図に第3図の処理装置(Pl)での本発明である処
理方法(PAB )、 CPTH,PTV )をフロー
チャートで示す。処理(Pr+v、Prv)の実線部と
破線部は前述の(a)式と(b)式に相当する。FIG. 6 shows a flowchart of the processing method (PAB), CPTH, PTV) of the present invention in the processing device (Pl) of FIG. 3. The solid line part and the broken line part of the process (Pr+v, Prv) correspond to the above-mentioned equations (a) and (b).
本発明の実施例によれば、ゲートの自動制御に対する安
全性、信頼性向上の効果がある。According to the embodiments of the present invention, there is an effect of improving the safety and reliability of automatic gate control.
本発明によれば、ゲートの目標開度H1”算で誤った開
度が発生しても、本発明で誤制御ケ事前に防止すること
ができる。According to the present invention, even if an incorrect opening occurs in calculating the target opening H1'' of the gate, the present invention can prevent erroneous control in advance.
本発明は、ゲートの自動制御において求められた目標開
度での貯水量、貯水位があらかじめ定められた許容変化
幅の範囲内にあるかどうか事前に判定することができる
ため、誤った目標開度が発生しても異常放流(誤放流)
を防止でき、ゲートの制御に対しての安全性、信頼性を
向−ヒできる。The present invention makes it possible to determine in advance whether or not the amount of water stored and the water level at the target opening determined in the automatic control of the gate are within a predetermined allowable range of change. Abnormal discharge (erroneous discharge) even when temperatures occur
It is possible to prevent this and improve the safety and reliability of gate control.
第1図は、制御装置の安全性、信頼性を向上させるため
の従来方式を示す。第2図は、ゲート制御の安全性、信
頼性を向上させるために本発明で採用した方式を示す。
第3図は、ゲート制御のシステム構成を示す。第4図は
、流入量を一定と考えた場合、目標開度までゲートを制
御したときの貯水量、貯水位変化をタイムチャートで示
す。第5図は、時間、日単位の貯水量、貯水位の許容変
化幅スケジュール表を示す。第6図は、本発明をフロー
チャートで示す。
A、 A’ 、 B、 B’・・・入力データ、Pt
、 P2・・・処理装置、PAN、PA’l’・・・処
理、P、P’・・・出力データ、ε・・・許容幅、TP
・・・処理1口の出力データ、PTll。FIG. 1 shows a conventional method for improving the safety and reliability of a control device. FIG. 2 shows the method adopted in the present invention to improve the safety and reliability of gate control. FIG. 3 shows the gate control system configuration. FIG. 4 is a time chart showing the amount of water stored and changes in the water level when the gate is controlled to the target opening, assuming that the inflow is constant. FIG. 5 shows a schedule of permissible changes in water storage amount and water level on an hourly and daily basis. FIG. 6 illustrates the invention in a flow chart. A, A', B, B'...input data, Pt
, P2...Processing device, PAN, PA'l'...Processing, P, P'...Output data, ε...Tolerance width, TP
...Output data of one processing unit, PTll.
Claims (1)
算しゲートを制御する方式において、計算された目標開
度の値に操作するに先立ら該目標開度の値まで制御した
時の貯水位、貯水量金子側し、該予測値があらかじめ設
定されている貯水位あるいは貯水量のパターンから決ま
る貯水位あるいは貯水量の値との偏差を演算し、該偏差
値があらがじめ設定された範囲にあるとき該計算さnた
目標開度にゲートを制御すること全特徴とするゲート制
御方式。1. In a method of controlling the gate by calculating the target value of the gate opening based on the water level and inflow value, when the gate is controlled to the target opening value before operating to the calculated target opening value. The water storage level and water storage amountKaneko side calculates the deviation of the predicted value from the water storage level or water storage amount value determined from the preset water storage level or water storage amount pattern, and calculates the deviation value from the preset water storage level or water storage amount pattern. A gate control method characterized in that the gate is controlled to the calculated target opening degree when the opening degree is within a set range.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11670382A JPS598020A (en) | 1982-07-07 | 1982-07-07 | Gate controlling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11670382A JPS598020A (en) | 1982-07-07 | 1982-07-07 | Gate controlling system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS598020A true JPS598020A (en) | 1984-01-17 |
Family
ID=14693737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11670382A Pending JPS598020A (en) | 1982-07-07 | 1982-07-07 | Gate controlling system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS598020A (en) |
-
1982
- 1982-07-07 JP JP11670382A patent/JPS598020A/en active Pending
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