JP2856601B2 - Operation control device for multiple distribution stations - Google Patents
Operation control device for multiple distribution stationsInfo
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- JP2856601B2 JP2856601B2 JP16136992A JP16136992A JP2856601B2 JP 2856601 B2 JP2856601 B2 JP 2856601B2 JP 16136992 A JP16136992 A JP 16136992A JP 16136992 A JP16136992 A JP 16136992A JP 2856601 B2 JP2856601 B2 JP 2856601B2
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- distribution
- water distribution
- value
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、上水道の配水ポンプ場
または上水場等の配水場を複数備えた複数配水場の運転
制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation control device for a plurality of water distribution stations having a plurality of water distribution stations such as a water distribution pumping station or a water supply station.
【０００２】[0002]
【従来の技術】従来、複数の配水場から同一の配水管網
に対して配水を行う場合には、熟練したオペレータが複
数配水場の配水流量実績値を監視し、過去の経験と現在
の状況から判断して各配水場毎に適切な要領の配水ポン
プを選択し、選択した配水ポンプの起動／停止を行って
いる。この場合、複数の配水場から配水される配水流量
がバランスよく分担され、配水管網内の配水圧力の極端
な変動が起こらないように複数配水場の運転を行ってい
る。2. Description of the Related Art Conventionally, when water is distributed from a plurality of water distribution stations to the same distribution pipe network, a skilled operator monitors the actual distribution flow rate values of the plurality of water distribution stations to obtain past experience and current conditions. Based on the above, a water distribution pump in an appropriate manner is selected for each water distribution station, and the selected water distribution pump is started / stopped. In this case, the distribution flow rates distributed from the plurality of distribution stations are distributed in a well-balanced manner, and the plurality of distribution stations are operated so that the distribution pressure in the distribution network does not extremely fluctuate.
【０００３】図５は、従来の方法によって運転される２
つの配水場（Ｘ，Ｙ）の運転結果の一例を示す図であ
る。ここで図５（ａ）は、２つの配水場から同一配水管
網に対して配水された配水流量の合計であり、需要実績
値を示している。また、図５（ｂ）は、Ｘ配水場の配水
流量実績値を示し、図５（ｃ）は、Ｙ配水場の配水流量
実績値を示している。図５（ｃ）においてＹ配水場では
時刻８付近で配水が停止しているが、図５（ｂ）によれ
ば、Ｘ配水場は運転しており、Ｘ配水場とＹ配水場の配
水流量の分担にアンバランスが生じている。このように
配水流量の分担にアンバランスが生じると、配水管網内
においては、配水圧力の変動が生じ、これにより配水管
の破裂、赤水の発生などの給水障害が発生することがあ
る。また配水場（Ｘ，Ｙ）においては、Ｙ配水場が停止
することによるＸ配水場への負荷の片寄りによって、配
水ポンプの起動停止回数が増して、効率的運転が妨げら
れる事になる。[0005] FIG. 5 is a schematic diagram showing a conventional operation method 2.
It is a figure which shows an example of the operation result of two water distribution plants (X, Y). Here, FIG. 5 (a) is the total of the distribution flow rates distributed from the two distribution stations to the same distribution pipe network, and indicates the actual demand value. Further, FIG. 5B shows the actual distribution flow rate value of the X distribution station, and FIG. 5C shows the actual distribution flow rate value of the Y distribution station. In FIG. 5 (c), water distribution is stopped around time 8 in the Y distribution station, but according to FIG. 5 (b), the X distribution station is operating, and the distribution flow rates of the X distribution station and the Y distribution station are shown. There is an imbalance in the share of the work. When the distribution of the distribution flow rate is imbalanced in this manner, the distribution pressure fluctuates in the distribution pipe network, which may cause a water supply failure such as a rupture of the distribution pipe or generation of red water. Further, in the water distribution plant (X, Y), the load on the X water distribution plant due to the stop of the Y water distribution plant increases the number of times the water distribution pump is started and stopped, thereby hindering efficient operation.
【０００４】このような場合は、図５（ｂ）の時刻８に
おいてＸ配水場は配水流量を下げて運転し、図５（ｃ）
の時刻８においてＹ配水場の運転が継続されるように配
水流量を適切に分担するような運転をするべきである。In such a case, at time 8 in FIG. 5 (b), the X water distribution station is operated with a reduced water distribution flow rate.
The operation should be performed so as to appropriately share the water distribution flow rate so that the operation of the Y water distribution station is continued at time 8 of.
【０００５】すなわち、上水道では、安定した給水が目
的の一つであるので、常時２つの配水場間の配水流量の
分担を適切に維持して、かつ配水システムに障害の発生
しないように運転を継続する必要がある。[0005] That is, in the water supply system, one of the objectives is to provide stable water supply. Therefore, the operation of the water supply system should be maintained so that the distribution flow rate between the two water distribution stations is always properly maintained and the water distribution system is not damaged. Need to continue.
【０００６】しかしながら、上述のような運転方法にお
いては、オペレータの個人差や需要パターンの変化によ
って、配水場間の配水流量に片寄り（アンバランス）が
生じ、配水システムに障害が発生するおそれがある。[0006] However, in the above-described operation method, there is a possibility that the distribution flow rate between the water distribution stations is unbalanced due to the individual difference of the operator or the change of the demand pattern, thereby causing a failure in the water distribution system. is there.
【０００７】[0007]
【発明が解決しようとする課題】以上のように、従来の
運転方法においては、オペレータの個人差や需要パター
ンの変化によって、配水場間の配水流量に片寄りが生
じ、配水システムに障害が発生するという問題がある。As described above, in the conventional operating method, the distribution flow rate between the water distribution stations is deviated due to individual differences between operators and changes in demand patterns, and a failure occurs in the water distribution system. There is a problem of doing.
【０００８】本発明はこのような点を考慮してなされた
ものであり、オペレータが代わったり需要パターンが変
化しても常に安定した運転を行なうことができ、複数の
配水場間の配水流量の片寄りによる障害の発生を防止す
ることができる複数配水場の運転制御装置を提供するこ
とを目的とする。[0008] The present invention has been made in view of such a point, it is possible to always perform stable operation even if the operator changes or the demand pattern changes, and the distribution flow rate between a plurality of water distribution stations. It is an object of the present invention to provide an operation control device for a plurality of water distribution stations, which can prevent the occurrence of a failure due to a bias.
【０００９】[0009]
【課題を解決するための手段】本発明は、配水ポンプを
有する複数の配水場から同一配水管網へ配水する複数配
水場の運転制御装置において、予め定められた需要予測
値の合計値を各配水場の分担比で分割して各配水場の初
期計画値を求め、各配水場の合計値がその制御周期の需
要予測値となるよう各制御周期毎に各配水場の分担計画
値を求めるとともに、この分担計画値を各配水場の全制
御周期内の初期計画値の合計値と分担計画値の合計値と
が接近するように定めた配水分担計画部と、この配水分
担計画部からの各配水場の分担計画値に基づいて各配水
場の配水ポンプを運転する配水流量制御部と、を備えた
ことを特徴とする複数配水場の運転制御装置である。SUMMARY OF THE INVENTION The present invention relates to an operation control device for a plurality of water distribution stations for distributing water from a plurality of water distribution stations having water distribution pumps to the same distribution pipe network. Divide by the distribution ratio of distribution stations to obtain the initial plan value of each distribution plant, and calculate the distribution plan value of each distribution plant in each control cycle so that the total value of each distribution plant becomes the demand forecast value of the control cycle Along with this distribution plan value, the distribution distribution plan section that determines the total value of the initial plan values and the total value of the distribution plan values within the entire control cycle of each distribution plant to be close to each other, An operation control device for a plurality of water distribution stations, comprising: a water distribution flow rate control unit that operates a water distribution pump of each water distribution station based on a sharing plan value of each water distribution station.
【００１０】[0010]
【作用】配水分担計画部において、予め定められた需要
予測値の合計値を各配水場の分担比で分割して各配水場
毎に初期計画値を求め、各配水場の合計値がその制御周
期の需要予測値となるよう各制御周期毎に各配水場の分
担計画値を求めるとともに、各配水場の全制御周期内の
初期計画値の合計値と分担計画値の合計値を接近させ
る。次に配水分担計画部からの各配水場の分担計画値に
基づいて、配水流量制御部により各配水場の配水ポンプ
を運転する。In the water distribution planning section, the total value of the predetermined demand forecast values is divided by the distribution ratio of each distribution plant to obtain an initial plan value for each distribution plant, and the total value of each distribution plant is controlled. In each control cycle, a shared plan value of each water distribution station is determined so as to be a demand forecast value of the cycle, and the total value of the initial planned values and the total value of the shared planned values in all the control cycles of each water distribution station are brought closer. Next, the distribution pump of each water distribution station is operated by the water distribution flow control unit based on the distribution plan value of each water distribution plant from the water distribution planning unit.
【００１１】[0011]
【実施例】以下、図面を参照して本発明の実施例につい
て説明する。図１乃至図３は本発明による複数配水場の
運転制御装置の一実施例を示す図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 3 are views showing an embodiment of an operation control device for a plurality of water distribution plants according to the present invention.
【００１２】図１において、配水ポンプ８ａを有するＡ
配水場８、配水ポンプ９ａを有するＢ配水場９、および
配水ポンプ１０ａを有するＣ配水場から同一の配水管網
１１へ配水されるようになっており、運転制御装置１に
より各配水場８、９、１０の運転制御が行なわれる。こ
のうちＣ配水場１０は、配水管網１１の圧力制御用の配
水場となっている。In FIG. 1, A having a water distribution pump 8a
Water is distributed to the same distribution network 11 from the water distribution plant 8, the B distribution plant 9 having the distribution pump 9a, and the C distribution plant having the distribution pump 10a. Operation control of 9 and 10 is performed. Among them, the C distribution plant 10 is a distribution plant for pressure control of the distribution network 11.
【００１３】運転制御装置１は、配水管網１１に対して
配水すべき浄水量である需要予測値１２を決定する需要
予測部２と、Ａ配水場の分担計画値１３、Ｂ配水場の分
担計画値１４およびＣ配水場の分担計画値２７を求める
配水分担計画部３とを備えている。分担計画値１３、１
４および２７は分担計画補正部４によって補正され、Ａ
配水場配水流量制御部５、Ｂ配水場配水流量制御部６、
およびＣ配水場制御部７へ各々送られる。The operation control unit 1 includes a demand forecasting unit 2 for determining a demand forecast value 12 which is a purified water amount to be distributed to the water distribution pipe network 11, a plan value 13 for the A distribution plant, and a share for the B distribution plant. And a water distribution plan unit 3 for obtaining a plan value 14 and a distribution plan value 27 of the C distribution plant. Assignment plan value 13, 1
4 and 27 are corrected by the sharing plan correction unit 4, and A
Water distribution station distribution flow rate control unit 5, B distribution station distribution flow rate control unit 6,
And C respectively to the water distribution station control unit 7.
【００１４】そして配水流量制御部５によりＡ配水場８
の配水ポンプ８ａがフィードバックにより流量制御さ
れ、配水流量制御部６によりＢ配水場９の配水ポンプ９
ａがフィードバックにより流量制御され、配水流量制御
部７によりＣ配水場１０の配水ポンプ１０ａがフィード
バックにより圧力および流量について制御される。A water distribution station 8 is controlled by a water distribution flow control unit 5.
The flow rate of the water distribution pump 8a is controlled by feedback, and the water distribution pump
The flow rate is controlled by feedback, and the water distribution pump 10a of the C distribution plant 10 is controlled by feedback to control the pressure and flow rate.
【００１５】次に各構成部分について詳述する。Next, each component will be described in detail.
【００１６】需要予測部２は、過去の実績データ２３ａ
と天候等の予報値２３ｂを用いて、配水管網１１に対し
て配水すべき浄水量である需要予測値１２を決定する部
分であり、過去の実績データ２３ａと予報値２３ｂの関
係は、予め統計解析手法を用いて求めておく。The demand forecasting unit 2 stores the past performance data 23a
And the forecast value 23b such as weather, the demand forecast value 12 which is the purified water amount to be distributed to the water distribution network 11 is determined. The relationship between the past actual data 23a and the forecast value 23b is determined in advance. It is obtained using a statistical analysis method.
【００１７】また、配水分担計画部３は需要予測値の合
計値を各配水場の分担比２４で分割し平坦化して各配水
場の初期計画値を求め、この初期計画値に合わせて各配
水場の合計値がその制御周期の需要予測値となるよう各
制御周期毎に各配水場の分担計画値を求めるものであ
る。配水分担計画部３については、後で詳述する。Further, the water distribution allocation planning section 3 divides the total value of the demand forecast values by the distribution ratio 24 of each water distribution station and flattens it to obtain an initial planned value of each water distribution station. The allocation plan value of each water distribution plant is determined for each control cycle so that the total value of the stations becomes the demand forecast value of the control cycle. The water distribution planning unit 3 will be described later in detail.
【００１８】また、分担計画補正部４は、配水管網１１
内の圧力を制御するＣ配水場１０からの配水流量実績値
１９が、Ｃ配水場１０の最大制御流量２５と最小制御流
量２６の間に入るように、各配水場の分担計画値１３、
１４および２７を補正して、各々の配水流量目標値１
５、１６および２８を決定する。Further, the sharing plan correction unit 4 includes a distribution pipe network 11.
The distribution plan value 13 of each distribution plant, so that the actual distribution flow value 19 from the C distribution plant 10 for controlling the pressure inside the distribution plant falls between the maximum control flow 25 and the minimum control flow 26 of the C distribution plant 10.
14 and 27, and each of the water distribution target values 1
Determine 5, 16, and 28.
【００１９】Ａ配水場配水流量制御部５は、Ａ配水場８
の配水流量実績値１７がＡ配水場８の配水流量目標値に
近づくように、配水ポンプ８ａの運転状態と配水流量の
関係を基にフィードバック制御してＡ配水場８の配水ポ
ンプ８ａを運転する。配水ポンプ８ａの運転状態と配水
流量の関係は、配水ポンプ８ａの試験データ等から予め
決定しておく。The A water distribution station water distribution flow control unit 5 includes an A water distribution station 8
The water distribution pump 8a of the A water distribution station 8 is operated by performing feedback control based on the relationship between the operation state of the water distribution pump 8a and the water distribution flow rate such that the actual distribution flow value 17 of the water distribution flow approaches the target value of the water distribution flow rate of the water distribution station 8. . The relationship between the operation state of the water distribution pump 8a and the water distribution flow rate is determined in advance from test data of the water distribution pump 8a.
【００２０】Ｂ配水場配水流量制御部６は、Ｂ配水場９
の配水流量実績値１８がＢ配水場９の配水流量目標値１
６に近づくようにフィードバック制御をして、Ｂ配水場
９の配水ポンプ９ａを運転する。配水ポンプ９ａの運転
状態と配水流量の関係は、配水ポンプ９ａの試験データ
等から予め決定しておく。The water distribution control section 6 for the B water distribution station has a
Distribution flow actual value 18 is the distribution water flow target value 1 of B distribution plant 9
Then, the water distribution pump 9a of the B water distribution station 9 is operated by performing feedback control so as to approach 6. The relationship between the operation state of the water distribution pump 9a and the water distribution flow rate is determined in advance from test data of the water distribution pump 9a.
【００２１】Ｃ配水場配水圧力制御部７は、配水管網１
１内圧力実績値２０が圧力目標値２２に近づくように、
Ｃ配水場１０の配水ポンプ１０ａを運転するとともに、
Ｃ配水場１０の配水流量実績値１９がＣ配水場分担計画
値２７に近づくよう運転する。この場合、配水ポンプ１
０ａの運転指令は、配水管網１１内圧力実績値２０と圧
力目標値２２の圧力偏差と配水ポンプ１０ａの運転特性
から、圧力偏差が減少するように決定する。圧力偏差を
減少させる方法としては、例えばＰＩ制御等の従来のフ
ィードバック制御理論に基づく方法を適用することがで
きる。圧力偏差と配水ポンプの運転特性との関係は、配
水ポンプの試験データ等から予め決定しておく。The water distribution pressure control unit 7 for the water distribution station C includes a water distribution network 1
1 so that the internal pressure actual value 20 approaches the pressure target value 22,
While operating the water distribution pump 10a of the C water distribution plant 10,
The operation is performed so that the actual distribution flow rate value 19 of the C distribution plant 10 approaches the C distribution plant sharing plan value 27. In this case, the water distribution pump 1
The operation command 0a is determined such that the pressure deviation is reduced from the pressure deviation between the actual pressure value 20 in the distribution network 11 and the pressure target value 22 and the operation characteristics of the water distribution pump 10a. As a method for reducing the pressure deviation, a method based on a conventional feedback control theory such as PI control can be applied. The relationship between the pressure deviation and the operation characteristics of the water distribution pump is determined in advance from test data of the water distribution pump and the like.
【００２２】このような運転制御装置１からの信号に基
づいて、Ａ配水場８は、配水ポンプ８ａから配水管網１
１に対して浄水を配水し、Ｂ配水場９は、配水ポンプ９
ａから配水管網１１に対して浄水を配水し、Ｃ配水場１
０は、配水ポンプ１０ａから配水管網１１に対して浄水
を配水する。On the basis of the signal from the operation control device 1, the water distribution station A is operated by the water distribution pump
1 and water distribution pump 9
a to distribute water to the distribution network 11;
0 distributes purified water from the water distribution pump 10a to the water distribution pipe network 11.
【００２３】次にこのような構成からなる本実施例の作
用について説明する。Next, the operation of the present embodiment having such a configuration will be described.
【００２４】はじめに需要予測部２は、過去の実績デー
タ２３ａと、配水流量を左右する天候、降水確立等の予
報値２３ｂに基づいて、配水管網１１に対して配水しな
ければならない浄水の需要予測値１２を決定する。First, the demand forecasting section 2 calculates the demand for purified water that must be distributed to the distribution pipe network 11 based on past actual data 23a and forecast values 23b such as weather and precipitation establishment that affect the distribution flow rate. The predicted value 12 is determined.
【００２５】次に配水分担計画部３において、各配水場
８、９、１０の分担計画値１３、１４、２７を求める。
この配水分担計画部３の作用について、以下図２および
図３により詳述する。 （ステップ１）まず図２に示すように、需要予測部２か
らの需要予測値１２を読み込む。 （ステップ２）設定された分担比２４の比率となるよう
に、需要予測値１２の全制御周期の合計流量と分担比２
４から各配水場８、９、１０の分担流量を求める。 （ステップ３）各配水場８、９、１０毎の合計流量がス
テップ２で求めた分担流量となるように各配水場毎の初
期計画値を決定する。この初期計画値は、図３に示すよ
うに、各配水場８、９、１０毎に平坦化して求められ
る。Next, in the water distribution plan section 3, the distribution plan values 13, 14, 27 of the water distribution stations 8, 9, 10 are obtained.
The operation of the water distribution planning unit 3 will be described in detail below with reference to FIGS. (Step 1) First, as shown in FIG. 2, the demand prediction value 12 from the demand prediction unit 2 is read. (Step 2) The total flow rate of the demand forecast value 12 in all control cycles and the sharing ratio 2 are set so that the ratio of the sharing ratio 24 is set.
From 4, the shared flow rate of each water distribution station 8, 9, 10 is determined. (Step 3) An initial plan value for each water distribution plant is determined such that the total flow rate for each of the water distribution plants 8, 9, and 10 becomes the shared flow obtained in step 2. As shown in FIG. 3, the initial plan value is obtained by flattening each of the water distribution stations 8, 9, and 10.
【００２６】ここで図３（ａ）は配水管網１１内で消費
される浄水量の予測値である需要予測値１２を示してい
る。また図３（ｂ）はＡ配水場初期計画値と後述するＡ
配水場分担計画値１３を示している。さらに図３（ｃ）
はＢ配水場初期計画値とＢ配水場分担計画値１４を示し
ている。また図３（ｄ）はＣ配水場分担計画値を示して
いる。 （ステップ４）次に各配水場８、９、１０毎に分担計画
値を求める。この分担計画値は各制御周期毎に決定す
る。Here, FIG. 3A shows a demand forecast value 12 which is a forecast value of the purified water amount consumed in the water distribution network 11. FIG. 3 (b) shows the initial plan values of the A water distribution plant and A
The distribution plant allocation plan value 13 is shown. Further, FIG.
Indicates a B distribution plant initial plan value and a B distribution plant sharing plan value 14. FIG. 3D shows the planned value of the C distribution plant. (Step 4) Next, an allocation plan value is calculated for each of the water distribution stations 8, 9, and 10. This sharing plan value is determined for each control cycle.
【００２７】まず各配水場毎に１制御周期前までの初期
計画値の合計値と、１制御周期前までの分担計画値の合
計値とを比較し、これらの合計値の間の差をなくすよう
配水場の配水ポンプの起動／停止順序を決定する。すな
わち、ある配水場について、初期計画値までの合計値が
分担計画値の合計値を上回った場合は、当該配水場の配
水ポンプを優先的に起動させ、初期計画値の合計値が分
担計画値の合計値を下回った場合は、当該配水場の配水
ポンプを優先的に停止させる。 （ステップ５）次に１制御周期前の各配水場の分担計画
値の合計値と現在の制御周期の需要予測値１２とを比較
する。そして１制御周期前の各配水場の分担計画値の合
計値が現在の制御周期の需要予測値１２を下回る場合
は、ステップ６を実行する。一方、１制御周期前の各配
水場の分担計画値の合計値が現在の制御周期の需要予測
値１２を上回る場合は、ステップ７を実行する。 （ステップ６）各配水場の分担計画値の合計値が現在の
制御周期の需要予測値１２となるように、（ステップ
４）で求めた配水場の操作順序に従って、配水場毎に増
加流量を決定する。この場合、増加流量は起動する配水
ポンプの運転台数により決定される。 （ステップ７）ここで再度、１制御周期前の各配水場の
分担計画値の合計値と現在の制御周期の需要予測値とを
比較する。First, the total value of the initial plan values up to one control cycle before and the total value of the share plan values up to one control cycle before are compared for each water distribution plant, and the difference between these total values is eliminated. The starting / stopping order of the water distribution pumps in the distribution station is determined. In other words, if the total value up to the initial plan value exceeds the total value of the sharing plan value for a certain distribution plant, the water distribution pump of the water distribution plant is activated with priority, and the total value of the initial planning value is If the total value is less than the total value, the water distribution pump of the water distribution station will be stopped preferentially. (Step 5) Next, the total value of the sharing plan values of each water distribution plant one control cycle before is compared with the demand forecast value 12 of the current control cycle. Then, when the total value of the sharing plan values of each water distribution plant one control cycle before is less than the demand forecast value 12 of the current control cycle, step 6 is executed. On the other hand, if the total value of the sharing plan values of the respective water distribution plants one control cycle earlier exceeds the demand forecast value 12 of the current control cycle, step 7 is executed. (Step 6) In accordance with the operation sequence of the water distribution plants determined in (Step 4), the increased flow rate is calculated for each water distribution plant so that the total value of the distribution plan values of each water distribution plant becomes the demand forecast value 12 of the current control cycle. decide. In this case, the increased flow rate is determined by the number of operating water distribution pumps to be started. (Step 7) Here, the total value of the sharing plan values of each water distribution plant one control cycle before is compared again with the demand forecast value of the current control cycle.
【００２８】１制御周期前の各配水場の分担計画値の合
計値が現在の制御周期の需要予測値１２を上回る場合
は、ステップ８を実行する。If the sum of the allocation plan values of each water distribution plant one control cycle before is greater than the demand forecast value 12 of the current control cycle, step 8 is executed.
【００２９】１制御周期前の各配水場の分担計画値の合
計値が現在制御周期の需要予測値１２を下回る場合は、
ステップ９を実行する。 （ステップ８）各配水場の分担計画値の合計値が現在の
制御周期の需要予測値１２となるように、（ステップ
４）で求めた配水場の操作順序に従って、配水場毎に減
少流量を決定する。この場合、現象流量は停止する配水
ポンプの運転台数により決定される。 （ステップ９）各配水場毎に第１周期から現在の制御周
期までの初期計画値の合計値と第１周期から現在の制御
周期までの分担計画値の合計値とを比較して求める。こ
の場合、相互の合計値の差をポンプ運転台数を基にして
求める。 （ステップ１０）全制御周期分の分担計画値を決定でき
た場合は、ステップ１１を実行する。分担計画値を決定
途中の制御周期である場合は、次の制御周期の分担計画
値を計画するためにステップ４を実行する。 （ステップ１１）決定した分担計画値をファイルに書き
出す。If the total value of the planned value of each water distribution plant one control cycle before is less than the demand forecast value 12 of the current control cycle,
Step 9 is executed. (Step 8) In accordance with the operation sequence of the water distribution plants determined in (Step 4), the reduced flow rate is calculated for each water distribution plant so that the total value of the distribution plan values of each water distribution plant becomes the demand forecast value 12 of the current control cycle. decide. In this case, the phenomenon flow rate is determined by the number of operating water distribution pumps that are stopped. (Step 9) The total value of the initial plan values from the first cycle to the current control cycle is compared with the total value of the share plan values from the first cycle to the current control cycle for each water distribution plant. In this case, the difference between the total values is determined based on the number of operating pumps. (Step 10) If the allotment plan value for the entire control cycle can be determined, step 11 is executed. If the control cycle is in the process of determining the sharing plan value, step 4 is executed to plan the sharing plan value for the next control cycle. (Step 11) The determined sharing plan values are written to a file.
【００３０】このように各制御周期毎に、１周期前まで
の分担計画値の合計値と１周期前までの初期計画値の合
計値との合計値との差がなくなるよう分担計画値を求め
ることによって、各配水場毎の全制御周期内の初期計画
値の合計値と分担計画値の合計値とを接近させることが
できる。このため配水場毎の能力に応じた運転を行なう
ことができる。As described above, in each control cycle, the shared plan value is determined so that there is no difference between the total value of the shared plan values up to one cycle before and the total value of the initial plan values up to one cycle before. This makes it possible to make the total value of the initial plan values and the total value of the shared plan values within the entire control cycle of each water distribution plant close to each other. For this reason, the operation according to the capacity of each water distribution station can be performed.
【００３１】次に分担計画補正部４において、配水管網
１１内の圧力を制御するＣ配水場１０からの配水流量実
績値１９が、Ｃ配水場１０の最大制御流量２５と最小制
御流量２６の間に入るように、Ａ配水場分担計画値１
３、Ｂ配水場分担計画値１４およびＣ配水場分担計画値
２７を各々補正する。そしてＡ配水場分担計画値１３
と、Ｂ配水場分担計画値１４と、Ｃ配水場分担計画値２
７とを補正した値を、各々配水流量目標値１５、１６お
よび２８とする。Next, in the sharing plan correction unit 4, the actual distribution flow rate value 19 from the C distribution plant 10 for controlling the pressure in the distribution pipe network 11 is calculated based on the maximum control flow 25 and the minimum control flow 26 of the C distribution plant 10. A water distribution plant sharing plan value 1
3. The B distribution station sharing plan value 14 and the C distribution station sharing plan value 27 are respectively corrected. And A distribution station sharing plan value 13
And B distribution station sharing plan value 14 and C distribution station sharing plan value 2
The values obtained by correcting 7 and 7 are referred to as distribution water flow target values 15, 16, and 28, respectively.
【００３２】次に配水流量目標値１５、１６および２８
が、Ａ配水場配水流量制御部５、Ｂ配水場配水流量制御
部６およびＣ配水場配水流量制御部７に各々入力され
る。Next, target distribution flow rates 15, 16, and 28
Are supplied to the A distribution plant distribution flow control unit 5, the B distribution plant distribution flow control unit 6, and the C distribution plant distribution flow control unit 7, respectively.
【００３３】次にＡ配水場配水流量制御部５は、分担計
画補正部４が決定した配水流量目標値１５になるように
Ａ配水場８の配水ポンプ８ａを起動／停止し、配水管網
１１へ浄水を配水する。また、Ｂ配水場配水流量制御部
６は、分担計画補正部４が決定した配水流量目標値１６
になるようにＢ配水場９の配水ポンプを起動／停止し、
配水管網１１へ浄水を配水する。さらにＣ配水場１０の
配水圧力制御部７は、配水管網１１内の圧力実績値２０
が設定された圧力目標値２２になるよう、また分担計画
補正部４が決定した配水流量目標値２８になるようにＣ
配水場１０の配水ポンプを起動／停止し、配水管網１１
へ浄水を配水する。Next, the water distribution control unit 5 in the A distribution station starts / stops the water distribution pump 8a of the water distribution station 8 so that the distribution flow target value 15 determined by the sharing plan correction unit 4 is reached. Distribute purified water to In addition, the water distribution flow control unit 6 for the B water distribution station controls the distribution flow target value 16 determined by the sharing plan correction unit 4.
Start / stop the water distribution pump of B water distribution station 9 so that
The purified water is distributed to the distribution network 11. Further, the water distribution pressure control unit 7 of the C water distribution plant 10 controls the actual pressure value 20 in the distribution pipe network 11.
Is set to the set pressure target value 22 and the distribution water flow target value 28 determined by the sharing plan correction unit 4 is set to C.
Start / stop the water distribution pump in the water distribution plant 10 and
Distribute purified water to
【００３４】以上説明したように、本実施例によれば、
各配水管毎の能力に応じた運転を行なうことができると
ともに、予め定められた需要予測値に近づけて配水管網
内に配水することができ、また配水管網内の圧力を所定
の圧力に維持することができる。 （具体例）図１に示すように、配水管網１１にＡ配水場
８とＢ配水場９とＣ配水場１０が接続されている上水道
システムに本発明を適用した場合の具体例について説明
する。需要予測部２によって決定した需要予測値１２
と、設定される分担比２４に基づいて、配水分担計画部
３が各配水場の配水分担計画値を決定し、各配水場を運
転する。As described above, according to this embodiment,
In addition to being able to operate according to the capacity of each distribution pipe, it is possible to distribute water in the distribution pipe network close to a predetermined demand forecast value, and to set the pressure in the distribution pipe network to a predetermined pressure. Can be maintained. (Specific Example) As shown in FIG. 1, a specific example in which the present invention is applied to a water supply system in which an A water distribution plant 8, a B water distribution plant 9, and a C water distribution plant 10 are connected to a distribution network 11 will be described. . Demand forecast value 12 determined by demand forecasting unit 2
Based on the set sharing ratio 24, the water distribution sharing plan unit 3 determines the water distribution sharing plan value of each distribution plant, and operates each distribution plant.
【００３５】本具体例では分担比は、Ａ配水場、Ｂ配水
場、Ｃ配水場のそれぞれが、１．０，１．５，０．５と
した。In this specific example, the distribution ratios of the A, B and C water distribution stations were 1.0, 1.5 and 0.5, respectively.
【００３６】各配水場の配水ポンプ台数は、Ａ配水場、
Ｂ配水場、Ｃ配水場がそれぞれ、８台、１２台、３台を
有している。The number of water distribution pumps at each water station is as follows:
The B and C distribution stations have 8, 12, and 3 respectively.
【００３７】配水ポンプの配水可能流量は、Ａ配水場、
Ｂ配水場、Ｃ配水場のそれぞれについて、４００［ｍ3
／ｈ］、８００［ｍ3 ／ｈ］、１００［ｍ3 ／ｈ］とし
た。The distributable flow rate of the water distribution pump is as follows:
400 [m 3 ] for each of the B and C distribution stations
/ H], 800 [m 3 / h] and 100 [m 3 / h].
【００３８】この時の需要予測値１２は、図３（ａ）の
ように予測され、Ａ配水場分担計画値１３とＢ配水場分
担計画値１４とＣ配水場分担計画値２７を計画した。The demand forecast value 12 at this time is predicted as shown in FIG. 3 (a), and an A distribution plant sharing plan value 13, a B distribution plant sharing plan value 14, and a C distribution plant sharing plan value 27 are planned.
【００３９】具体例では、２４制御周期分（全制御周
期）の計画結果を示した。In the specific example, the plan results for 24 control cycles (all control cycles) are shown.
【００４０】具体例では、Ａ配水場、Ｂ配水場において
流量制御を行うとした。また、Ｃ配水場において圧力制
御および流量制御を行うこととした。In the specific example, it is assumed that the flow control is performed in the A water distribution station and the B water distribution station. In addition, pressure control and flow rate control will be performed in the C water distribution station.
【００４１】各配水場の分担計画値の分担比率結果は、
１．０，１．４４，０．５１であった。The distribution ratio results of the distribution plan values for each water distribution plant are as follows:
1.0, 1.44 and 0.51.
【００４２】時刻６から時刻１２において、図３（ｃ）
のＢ配水場分担計画のみが増加しているが、時刻５まで
のＢ配水場初期計画値の合計値と時刻５までのＢ配水場
分担計画値１４の合計値の差（配水ポンプ台数差）が、
Ａ配水場８とＣ配水場１０に比べて大きくなっているた
めに、Ｂ配水場９の配水ポンプを起動したのである。From time 6 to time 12, FIG.
Only the B distribution plant sharing plan has increased, but the difference between the total value of the B distribution plant initial plan values up to time 5 and the total value of the B distribution plant sharing plan values 14 up to time 5 (difference in the number of water distribution pumps) But,
The water distribution pumps of the B water distribution station 9 were started because the water distribution pumps were larger than those of the A water distribution plant 8 and the C water distribution plant 10.
【００４３】また、時刻１９から時刻２４においては、
図３（ｃ）のＢ配水場分担計画値１４がゼロとなって、
図３（ｂ）のＡ配水場分担計画値１３と図３（ｄ）のＣ
配水場分担計画値２７が多くなっている。これは、Ｂ配
水場９の時刻１９までの分担計画値までの初期計画値の
合計値を越えたために、Ａ配水場８とＣ配水場１０の分
担計画値が増加したものである。From time 19 to time 24,
The planned value 14 for the B water distribution station in FIG. 3 (c) becomes zero,
The distribution plan value 13 for the A distribution plant in FIG. 3 (b) and C in FIG. 3 (d)
The distribution plant allocation plan value 27 has increased. This is because the planned value of the A water distribution plant 8 and the C water distribution plant 10 increased because the total value of the initial planned values up to the planned value of the water distribution plant 9 up to the time 19 was exceeded.
【００４４】次に図４により他の実施例について説明す
る。上記実施例では、各配水場の初期計画値を全制御周
期において平均に計画したが、例えば図４（ａ）に示す
需要予測値のパターンと相似なパターンとなるようにＡ
配水場、Ｂ配水場およびＣ排水場の分担計画値を求める
ことも可能である（図４（ｂ）（ｃ）（ｄ））。この場
合は、需要予測値のパターンにより近づくよう各配水場
の運転制御を行なうことができる。Next, another embodiment will be described with reference to FIG. In the above embodiment, the initial plan values of each water distribution plant are planned to be averaged over the entire control cycle. However, for example, A is set to be similar to the pattern of the demand forecast value shown in FIG.
It is also possible to obtain the planned values for the distribution plant, the B distribution plant and the C drainage plant (FIGS. 4 (b), (c) and (d)). In this case, the operation control of each water distribution station can be performed so as to be closer to the pattern of the demand forecast value.
【００４５】[0045]
【発明の効果】以上説明したように、本発明によれば、
各配水場毎の能力に応じた運転を行なうことができる。
また予め定められた需要予測値に近づけて配水管網内に
配水することができる。このため、配水場間の配水流量
に片寄りが生じることはなく、配水システムに障害が生
じることもない。As described above, according to the present invention,
The operation according to the capacity of each water distribution station can be performed.
In addition, water can be distributed in the water distribution network close to a predetermined demand forecast value. For this reason, there is no deviation in the distribution flow rate between the distribution stations, and there is no failure in the distribution system.
【図１】本発明による複数配水場の運転制御装置の一実
施例を示す概略図。FIG. 1 is a schematic diagram showing an embodiment of an operation control device for a plurality of water distribution stations according to the present invention.
【図２】図１に示す運転制御装置の配水分担計画部の動
作を示すフロー図。FIG. 2 is a flowchart showing the operation of a water distribution plan section of the operation control device shown in FIG. 1;
【図３】図１に示す運転制御装置の需要予測値、初期計
画値および分担計画値を示す図。FIG. 3 is a diagram showing a demand forecast value, an initial plan value, and a shared plan value of the operation control device shown in FIG. 1;
【図４】本発明の他の実施例における需要予測値、初期
計画値および分担計画値を示す図。FIG. 4 is a diagram showing a demand forecast value, an initial plan value, and a shared plan value in another embodiment of the present invention.
【図５】従来の運転制御装置の運転状況を示す図。FIG. 5 is a diagram showing an operation state of a conventional operation control device.
１ 運転制御装置 ２ 需要予測部 ３ 配水分担計画部 ４ 分担計画部 ５ 配水流量制御部 ６ 配水流量制御部 ７ 配水流量制御部 ８ Ａ配水場 ９ Ｂ配水場 １０ Ｃ配水場 １１ 配水管網 DESCRIPTION OF SYMBOLS 1 Operation control apparatus 2 Demand forecasting part 3 Water distribution planning part 4 Distribution planning part 5 Water distribution flow control part 6 Water distribution flow control part 7 Water distribution flow control part 8 A water distribution station 9 B water distribution area 10 C water distribution area 11 Water distribution network
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村 山 忠 義 東京都港区芝浦一丁目１番１号 株式会 社東芝 本社事務所内 (58)調査した分野(Int.Cl.6，ＤＢ名) E03B 1/00 G05D 7/06──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tadayoshi Murayama 1-1-1, Shibaura, Minato-ku, Tokyo In the head office of Toshiba Corporation (58) Field surveyed (Int.Cl. 6 , DB name) E03B 1/00 G05D 7/06
Claims (1)
配水管網へ配水する複数配水場の運転制御装置におい
て、 予め定められた需要予測値の合計値を各配水場の分担比
で分割して各配水場の初期計画値を求め、各配水場の合
計値がその制御周期の需要予測値となるよう各制御周期
毎に各配水場の分担計画値を求めるとともに、この分担
計画値を各配水場の全制御周期内の初期計画値の合計値
と分担計画値の合計値とが接近するように定めた配水分
担計画部と、 この配水分担計画部からの各配水場の分担計画値に基づ
いて各配水場の配水ポンプを運転する配水流量制御部
と、 を備えたことを特徴とする複数配水場の運転制御装置。An operation control device for a plurality of water distribution stations for distributing water from a plurality of water distribution stations having a water distribution pump to the same water distribution network, wherein a total value of predetermined demand forecast values is divided by a sharing ratio of each water distribution plant. Calculate the initial plan value of each water distribution plant, and calculate the planned value of each water distribution plant for each control cycle so that the total value of each water distribution plant becomes the demand forecast value of the control period. The water distribution plan section that is set so that the total value of the initial plan value and the total value of the distribution plan within the entire control cycle of the distribution plant approach each other, and the distribution plan value of each distribution plant from this water distribution plan An operation control device for a plurality of water distribution stations, comprising: a water distribution flow rate control unit that operates a water distribution pump of each water distribution station based on the information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16136992A JP2856601B2 (en) | 1992-06-19 | 1992-06-19 | Operation control device for multiple distribution stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16136992A JP2856601B2 (en) | 1992-06-19 | 1992-06-19 | Operation control device for multiple distribution stations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH062346A JPH062346A (en) | 1994-01-11 |
| JP2856601B2 true JP2856601B2 (en) | 1999-02-10 |
Family
ID=15733781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16136992A Expired - Lifetime JP2856601B2 (en) | 1992-06-19 | 1992-06-19 | Operation control device for multiple distribution stations |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2856601B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3974294B2 (en) * | 1999-09-13 | 2007-09-12 | 株式会社東芝 | Water and sewage monitoring and control system |
| JP4669756B2 (en) * | 2005-08-01 | 2011-04-13 | 株式会社日立製作所 | Water distribution planning apparatus and water distribution control method |
| JP5851259B2 (en) * | 2012-01-26 | 2016-02-03 | 株式会社日立製作所 | Water distribution operation control device |
-
1992
- 1992-06-19 JP JP16136992A patent/JP2856601B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH062346A (en) | 1994-01-11 |
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