JP3294074B2 - Rainwater pump control device and control method - Google Patents
Rainwater pump control device and control methodInfo
- Publication number
- JP3294074B2 JP3294074B2 JP21999795A JP21999795A JP3294074B2 JP 3294074 B2 JP3294074 B2 JP 3294074B2 JP 21999795 A JP21999795 A JP 21999795A JP 21999795 A JP21999795 A JP 21999795A JP 3294074 B2 JP3294074 B2 JP 3294074B2
- Authority
- JP
- Japan
- Prior art keywords
- amount
- rainwater
- pipe
- pump
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/40—Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping
Landscapes
- Sewage (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Feedback Control In General (AREA)
- Flow Control (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、下水道の雨水排水ポン
プ場における制御方法に係わり、管渠への雨水流入量を
予測し、予測値に基づいてポンプ運転を制御する予測制
御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method for a rainwater drainage pumping station for sewage, and more particularly to a prediction control method for predicting the amount of rainwater flowing into a sewer and controlling the pump operation based on the predicted value.
【０００２】[0002]
【従来の技術】雨水ポンプの制御方法においては、たと
えば特開昭64−19402 号公報にみられるように、豪雨時
などに急激に流入する雨水流入に追従するために、雨水
流入量を予測し、ポンプの起動・停止或いは停止後の再
起動に要する無駄時間を見越して先行してポンプの起動
・停止をしようとするものが知られている。2. Description of the Related Art In a control method of a rainwater pump, for example, as disclosed in Japanese Patent Application Laid-Open No. 19402/1988, the amount of rainwater inflow is predicted in order to follow the inflow of rainwater which suddenly flows during heavy rain. It is known that the pump is started / stopped ahead of time in anticipation of the dead time required for starting / stopping the pump or restarting after the pump is stopped.
【０００３】一方、近年の下水道管渠のなかには都市型
洪水防止のために、管径，管長ともに大規模なものと
し、流入する雨水を単に排水するための水路としてだけ
でなく、降雨の状況に応じて雨水を一時貯留させようと
するものが建設されてくるようになってきた。管渠に雨
水を一時貯留することによって、放流先の河川に対する
流出量をピークカットしたり、貯留した雨水を降雨終了
後に下水処理場に送水し処理した後に河川等に放流する
ことが可能となるわけである。On the other hand, in recent sewer sewers, both the pipe diameter and the pipe length have been increased to prevent urban flooding, so that they are not only used as drainage channels for draining inflowing rainwater but also in rainfall situations. Correspondingly, those that intend to temporarily store rainwater are being built. By temporarily storing rainwater in a sewer, it is possible to peak cut off the amount of runoff to the river at the discharge destination, or to send the stored rainwater to a sewage treatment plant after rainfall and to process it and discharge it to rivers etc. That is.
【０００４】このように管渠が、排水と貯留の２つの役
割を有するようになった場合、上記に代表される先行技
術では、流入量予測値をポンプ先行起動のためにのみ用
いており、管渠内の貯留量に関しては考慮されておら
ず、貯留量を適正な規模とし、河川等の管渠系に対する
雨水流出量を抑制するためには適していない。なお、管
渠内の雨水貯留量を考慮した先行技術としては、特開平
6−129361 号公報，特開平6−259110 号公報に記載のも
のがある。In the case where the sewer has two roles of drainage and storage, the prior art represented by the above uses the predicted inflow amount only for the advance start of the pump, No consideration is given to the amount of storage in the sewer, and it is not suitable for making the amount of storage appropriate and controlling the amount of rainwater runoff to sewer systems such as rivers. The prior art taking into account the amount of rainwater stored in a sewer is disclosed in
There are those described in JP-A-6-129361 and JP-A-6-259110.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、管渠の持つ
貯留能力を有効に活用しようとするものである。SUMMARY OF THE INVENTION The present invention is to effectively utilize the storage capacity of a sewer.
【０００６】[0006]
【課題を解決するための手段】本発明は、下水管渠を通
して流入する雨水を、流量制御可能なポンプを少なくと
も一台有する雨水排水ポンプ場にて揚水し、河川，海等
に放流する雨水排水ポンプ設備のポンプ制御装置におい
て、流域の降雨量を測定する雨量計から定周期で得られ
る降雨データに基づいて一定時間先までに管渠内に流入
する雨水流入量を予め決められた時刻毎に予測する雨水
流入量予測部と、該雨水流入量予測部で予測した雨水流
入量と管渠内水位データとに基づいてポンプ運転がない
場合の管内貯留量予測値を予め決められた時刻毎に算出
する管内貯留量予測部と、管内貯留量目標値を設定する
管内貯留量目標値演算部と、該管内貯留量予測部で得ら
れた管内貯留量予測値から該管内貯留量目標値演算部で
設定した管内貯留量目標値を減じた値を現在時刻より一
定時間先までの各時刻において求め、この値が正数にな
った時刻から一定時間先までの各時刻における雨水流入
量予測値を前記各時刻における目標ポンプ排水量とし、
負数である間の目標排水量をゼロとして排水流量を演算
する目標排水量・流量演算部と、該目標排水量・流量演
算部で得られた目標排水量・流量に基づいてポンプの運
転台数及び回転数を制御するポンプ台数制御部とを具備
したことを特徴とする。SUMMARY OF THE INVENTION The present invention is directed to a rainwater drainage pump that pumps rainwater flowing through a sewer pipe at a rainwater drainage pump station having at least one pump capable of controlling the flow rate, and discharges the rainwater to rivers, the sea, and the like. In the pump control device of the pump equipment, the rainwater inflow amount flowing into the sewer up to a predetermined time ahead based on the rainfall data obtained at regular intervals from the rain gauge that measures the rainfall in the basin at a predetermined time. For each predetermined time, a predicted rainwater inflow amount predicting unit, and a predicted amount of storage in a pipe when there is no pump operation based on the rainwater inflow amount predicted by the rainwater inflow amount prediction unit and the water level data in the sewer. An in-pipe storage amount prediction unit to calculate, a in-pipe storage amount target value calculation unit to set the in-pipe storage amount target value, and the in-pipe storage amount target value calculation unit from the in-pipe storage amount prediction value obtained by the in-pipe storage amount prediction unit In-tube storage set in A value obtained by subtracting the target value is obtained at each time from a current time to a certain time ahead, and a predicted rainwater inflow amount at each time from a time at which this value becomes a positive number to a certain time ahead is obtained by the target pump at each time. Drainage volume,
A target drainage / flow rate calculation unit that calculates a drainage flow rate while setting the target drainage volume to a negative number as zero, and controls the number of pumps operated and the number of revolutions based on the target drainage flow rate / flow rate obtained by the target drainage / flow rate calculation unit And a control unit for controlling the number of pumps.
【０００７】また、下水管渠を通して流入する雨水を、
流量制御可能なポンプを少なくとも一台有する雨水排水
ポンプ場にて揚水し、河川，海等に放流する雨水排水ポ
ンプ設備のポンプ制御方法において、流域の降雨量を測
定する雨量計から定周期で得られる降雨データに基づい
て一定時間先までに管渠内に流入する雨水流入量を予め
決められた時刻毎に予測し、得られた雨水流入量予測値
と管渠内水位データとからポンプ運転がない場合の管内
貯留量を前記予め決められた時刻毎に算出し、算出した
管内貯留量を予め設定した管内貯留量目標値から減じた
値を現在時刻より一定時間先までの各時刻において求
め、この値が正数になった時刻から一定時間先までの各
時刻における雨水流入量予測値を前記各時刻における目
標ポンプ排水量とし、負数である間の目標排水量をゼロ
として排水流量を演算し、得られた目標排水量・流量に
基づいてポンプの運転台数及び回転数を制御するように
したことを特徴とする。Further, rainwater flowing through a sewer pipe is
A pump control method for rainwater drainage pumping equipment that pumps water at a rainwater drainage pump station that has at least one pump that can control the flow rate and discharges it to rivers, the sea, etc. Predicts the amount of rainwater flowing into the sewer at a predetermined time based on the rainfall data obtained at a predetermined time, and the pump operation is performed based on the obtained predicted rainwater inflow amount and the water level data in the sewer. If there is no in-pipe storage amount is calculated at each of the predetermined times, a value obtained by subtracting the calculated in-pipe storage amount from the preset in-pipe storage amount target value at each time up to a certain time ahead of the current time, The predicted value of rainwater inflow at each time from the time when this value becomes a positive number to a certain time ahead is set as the target pump drainage amount at each time, and the target drainage amount while the value is negative is zero, and the drainage flow rate is calculated. And, characterized by being adapted to control the number of operating and the rotational speed of the pump based on the obtained target wastewater-flow.
【０００８】本発明のポンプ制御方法において、管内で
貯留すべき雨水量を決める際に、気象予報の短時間数値
予報値の１時間ごとの予報降水量にて一定時間先までの
予測総降雨量を算出し、該予測総降雨量にて大雨モー
ド，中雨モード及び小雨モード或いは大雨モード，小雨
モードのように降雨量の大小に応じて定められるモード
を判定し、各モードに応じた貯留量を管内で貯留すべき
雨水量として決定することが好ましい。In the pump control method according to the present invention, when determining the amount of rainwater to be stored in the pipe, the total rainfall predicted up to a certain time ahead is calculated based on the hourly forecast rainfall of the short-term numerical forecast value of the weather forecast. Is calculated, and a mode determined according to the magnitude of rainfall, such as heavy rain mode, medium rain mode and light rain mode or heavy rain mode or light rain mode, is determined based on the predicted total rainfall, and the storage amount according to each mode is determined. Is preferably determined as the amount of rainwater to be stored in the pipe.
【０００９】[0009]
【作用】一定時間先までの流入予測値を積算する処理に
よって、前記一定時間先までの総雨水流入量または管内
貯留量変化の予測値を求めることが可能となる、管内貯
留量目標値を設定することによって、上記総流入量また
は、管内貯留量変化の予測値との偏差を計算することが
でき、これを上記一定時間内の目標排水量または上記一
定時間先までの目標流量として、ポンプ台数制御に対す
る管内貯留量を考慮した設定値とすることが可能とな
る。According to the present invention, it is possible to obtain a predicted value of the total rainwater inflow or the change in the storage amount in the pipe up to the predetermined time by the process of integrating the predicted value of the inflow up to the predetermined time. By doing so, it is possible to calculate a deviation from the predicted value of the change in the total inflow amount or the in-pipe storage amount, and use this as a target drainage amount within the predetermined time or a target flow rate up to the predetermined time ahead, and control the number of pumps. Can be set to a set value in consideration of the stored amount in the pipe.
【００１０】さらに、管内貯留量の目標値は、短期気象
予報の降雨予報値を用いることによって、降雨の大雨／
小雨の判定ができ、ひと雨単位の降雨量に応じた貯留管
渠の運用が可能となる。Further, the target value of the storage amount in the pipe is determined by using the rainfall forecast value of the short-term weather forecast,
It is possible to judge light rain, and it becomes possible to operate a storage pipe according to the amount of rainfall per rainfall.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面を用いて詳細に
説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００１２】図１は、実施例における雨水ポンプ制御シ
ステムの全体構成図である。ポンプ場１３の排水区域１
１における降雨は下水管渠１２を通じてポンプ場１３に
流入する。ポンプ場１３では、回転数制御による流量制
御可能な可変速ポンプ群114、ならびに固定速ポンプ群
１１３によって、流入した雨水を河川もしくは海に放流
する。FIG. 1 is an overall configuration diagram of a rainwater pump control system according to an embodiment. Drainage area 1 of pump station 13
The rainfall at 1 flows into the pumping station 13 through the sewer 12. In the pump station 13, the rainwater that has flowed in is discharged into a river or sea by a variable speed pump group 114 and a fixed speed pump group 113 that can control the flow rate by controlling the rotation speed.
【００１３】ポンプ場１３に設置されている雨水ポンプ
制御装置１２０は、排水区域１１関連の計測データとし
て、排水区域１１内に一台以上設置されている地上雨量
計１４もしくはレーダ雨量計１６から排水区域１１の降
雨量を、また、管渠内水位計１７によって管渠水位をリ
アルタイムに収集するとともに、ポンプ場１３の測定デ
ータとしてポンプ井水位１１０，流入渠水位１９，ポン
プ運転状態１１２をリアルタイムに収集し、さらに
（財）日本気象協会のＭＩＣＯＳに代表される電話回線
等のデータ通信により配信されている気象予報データを
受信する、これらの収集、ならびに受信したデータに基
づき制御演算によって、固定速ポンプ群１１３，可変速
ポンプ群１１４に対して運転，停止指令，回転数制御指
令を出力する。The rainwater pump control device 120 installed in the pumping station 13 supplies drainage data related to the drainage area 11 from one or more ground rain gauges 14 or radar rain gauges 16 installed in the drainage area 11. The rainfall in the area 11 and the water level of the sewer are collected in real time by the water level gauge 17 in the sewer, and the pump well water level 110, the inflow sewer water level 19, and the pump operation state 112 are measured in real time as the measurement data of the pump station 13. It collects and receives weather forecast data distributed by data communication such as a telephone line such as the MICOS of the Japan Meteorological Association. An operation / stop command and a rotation speed control command are output to the pump group 113 and the variable speed pump group 114.
【００１４】雨水ポンプ制御装置１２０は、雨水流入量
予測部１１５，管内貯留量予測部１１６，目標排水量・
流量演算部１１７，ポンプ台数制御部１１８，管内貯留
量目標値演算部１１９から構成される。The rainwater pump controller 120 includes a rainwater inflow predictor 115, a pipe storage predictor 116, a target drainage rate
It comprises a flow rate calculation unit 117, a pump number control unit 118, and a pipe storage target value calculation unit 119.
【００１５】図２は、雨水流入量予測部１１５から目標
排水量・流量演算部１１７までの演算処理の概略フロー
である。雨水流入量予測から目標排水量・目標流量算出
までの処理手順を図２を用いて説明する。FIG. 2 is a schematic flow chart of the calculation processing from the rainwater inflow rate prediction unit 115 to the target drainage / flow rate calculation unit 117. The processing procedure from rainwater inflow estimation to target drainage / target flow rate calculation will be described with reference to FIG.
【００１６】雨水流入量予測部１１５では、降雨データ
１５，管渠内水位データ１８を入力として、与えられた
一定時間（以下、予測先行時間Ｔと呼ぶ）先までの雨水
流入量を予測する。予測演算の方法としては、地上雨量
計やレーダ雨量計で計測した降雨データ１５のみを用い
る方法として、河川流出モデルに適用されてきているタ
ンクモデル，貯留関数モデル（たとえば、佐藤勝夫著
「洪水流出計算法」，昭和５７年５月２０日発行，山海
堂）があり、降雨データ，管渠内水位データの両者を用
いるものとしては修正アール アール エル（ＲＲＬ，
ロード リサーチラボラトリー)法をベースとしたモデ
ル(たとえば「ポンプ場におけるポンプ運転支援につい
て」高橋ほか、第３１回下水道研究発表会講演集Ｐ６８
３〜６８５）がある。また、エー アール（ＡＲ，オー
ト リグレッション）モデルや重回帰モデルといったパ
ラメトリックな手法もある。ここでは、これらの予測手
法のうちいずれかを用いて予測先行時間Ｔまでの雨水流
入量を求める（流入量予測値２１）。流入量予測値は、
予測先行時間ｔまでの期間を単位時間(たとえば１分)間
隔で演算する。The rainwater inflow predicting unit 115 receives the rainfall data 15 and the water level data 18 in the sewer, and predicts the rainwater inflow up to a given time (hereinafter, referred to as a prediction advance time T). As a method of the prediction calculation, as a method using only the rainfall data 15 measured by the ground rain gauge or the radar rain gauge, a tank model and a storage function model which have been applied to a river runoff model (for example, “Flood Runoff” by Katsuo Sato Calculation method ”, published on May 20, 1982, by Sankaido), and the modified RRL (RRL,
Model based on the Road Research Laboratory method (for example, “About Pump Operation Support at Pumping Stations” Takahashi et al., Proceedings of the 31st Annual Sewer Research Conference P68
3-685). There are also parametric methods such as an Earl's (AR, auto-regression) model and a multiple regression model. Here, the rainwater inflow amount up to the prediction preceding time T is obtained by using any of these prediction methods (inflow amount prediction value 21). The predicted inflow is
The period up to the predicted leading time t is calculated at unit time (for example, one minute) intervals.
【００１７】管内貯留量予測部１１６では、数１に示す
ように、雨水流入量予測部１１５で算出した雨水流入量
ｑｐ(ｉ)（ｉ＝０，１〜Ｔ）を積算し、予測先行時間ま
での各時刻における管内貯留量予測値２２を算出する。
なお、数１で算出した管内貯留量予測値２２は、ポンプ
排水量を考慮していないため、実際はポンプが全台停止
したと仮定した場合の管内貯留量である。The in-pipe storage amount prediction unit 116 integrates the rainwater inflow amount qp (i) (i = 0, 1 to T) calculated by the rainwater inflow amount prediction unit 115, as shown in Expression 1, and calculates the prediction leading time. Is calculated at each time up to the time.
The in-pipe storage amount predicted value 22 calculated by Equation 1 does not take into account the pump drainage amount, and thus is actually the in-pipe storage amount when it is assumed that all the pumps have stopped.
【００１８】[0018]
【数１】 (Equation 1)
【００１９】次に目標排水量・流量演算部１１７では、
管内貯留量目標値演算部１１９にて予め演算して設定し
た管内貯留量目標値２４と、管内貯留量予測値２２よ
り、数２によって、予測先行時間までに排水すべき排水
量(目標排水量２５)として算出するとともに、予測先行
時間Ｔ後までの各時刻における目標流量２３を算出す
る。目標流量を算出するためにはまず数３によって貯留
・排水判定条件Ｃ（ｔ0 ＋ｕ）を、ｕ＝０，１〜Ｔまで
の各時刻について算出する。Ｃ（ｔ0 ＋ｕ）は、正数で
あればポンプによる排水が必要であることを示し、負
数，ゼロであればポンプによる排水が必要ではない、す
なわち貯留すべきであることを示す。次に、Ｃ（ｔ0 ＋
ｕ）の正負によって数４にて目標流量を算出する。数４
に示すようにポンプ排水条件を満たした場合は、目標流
量は、その時刻における雨水流入量予測値である。Next, in the target drainage / flow rate calculation unit 117,
From the in-pipe storage amount target value 24 previously calculated and set in the in-pipe storage amount target value calculation unit 119 and the in-pipe storage amount predicted value 22, the amount of drainage to be drained by the prediction preceding time (the target amount of drainage 25) according to Equation 2 , And the target flow rate 23 at each time until after the predicted preceding time T is calculated. In order to calculate the target flow rate, first, the storage / drainage determination condition C (t 0 + u) is calculated for each time from u = 0, 1 to T using Equation 3. If C (t 0 + u) is a positive number, it indicates that drainage by a pump is necessary. If it is a negative number, zero indicates that drainage by a pump is not necessary, that is, it should be stored. Next, C (t 0 +
The target flow rate is calculated by Expression 4 according to the sign of u). Number 4
When the pump drainage condition is satisfied as shown in (1), the target flow rate is a predicted value of rainwater inflow at that time.
【００２０】[0020]
【数２】 ＱN（ｔ0）＝max｛(Ｖ(ｔ0＋Ｔ）−Ｖs（ｔ0))，０｝ …（数２） ＱN（ｔ0）：時刻ｔ0 にて算出した時刻ｔ0〜（ｔ0＋
Ｔ）までに必要な排水量 max{ａ，ｂ｝：ａ，ｂのいずれか大きなほうを選択する
演算 Ｖs（ｔ0）：時刻ｔ0 における管内貯留量目標値Q N (t 0 ) = max ｛(V (t 0 + T) −V s (t 0 )), 0｝ (Equation 2) Q N (t 0 ): calculated at time t 0 time t 0 ~ (t 0 +
The drainage amount required by T) max {a, b}: Calculation to select the larger one of a and b V s (t 0 ): Target value of stored amount in pipe at time t 0
【００２１】[0021]
【数３】 Ｃ（ｔ0＋ｕ）＝Ｖ（ｔ0＋ｕ）−Ｖs（ｔ0） …（数３）C (t 0 + u) = V (t 0 + u) −V s (t 0 ) (Equation 3)
【００２２】[0022]
【数４】 (Equation 4)
【００２３】以上の処理によって目標排水量ならびに目
標流量が算出されたが、次にポンプ台数制御部１１８に
よって、これらの目標値に基づきポンプ起動停止指令，
ポンプ回転数設定値として各ポンプに対して出力する。The target drainage amount and the target flow rate are calculated by the above processing. Next, the pump start / stop command,
Output to each pump as the pump rotation speed setting value.
【００２４】台数制御の方法は、制御対象となるポンプ
の種類によって異なる。制御対象のポンプが全水位に対
して運転可能な全速先行待機ポンプであれば、全ての水
位にて運転可能であるため、ポンプが運転可能な最低流
量を考慮する必要が無く、数２で算出した目標排水量と
ポンプ一台あたりの排水量（定格排水量）で除して、ポ
ンプ運転台数を決定できる。ここで、目標排水量が、予
測先行時間Ｔ間の排水量であるのに対し、ポンプ定格排
水量は、ｍ3／min，ｍ3／secとして、１分もしくは１秒
あたりの排水量で通常与えられるため、ポンプ定格排水
量を時間Ｔあたりの排水量に換算したのちに除算する。
また、制御対象のポンプが、低水位運転，気中運転ので
きない従来型のポンプである場合、低水位運転により、
ポンプの起動停止が頻発しないように、貯留・排水判定
条件Ｃ（ｔ0 ＋ｕ）が、排水条件を満たしたところ、換
言すれば、貯留量が、管内貯留量目標値に達したところ
でポンプを起動するように、数４で求められる目標流量
にしたがってポンプ運転台数，目標流量を設定する。目
標流量とポンプ運転台数との関係は、たとえば図３に示
すように、目標流量毎に運転台数を、流量増加時，減少
時の運転台数追加流量と減少流量にヒステリシスを設
け、運転台数を決定する。起動停止させるポンプの号機
は、号機Ｎo.順に割り当てていく方法（起動は号機Ｎo.
の小さい順、停止は号機Ｎo.の小さい順または大きい
順）、ポンプ号機間の運転時間平準化をはかりながら運
転停止号機を決定していく方法（運転時間の少ないもの
で起動準備完了済みの号機から順に起動し、停止は運転
時間の長いものから順に停止する）等がある。The number control method differs depending on the type of pump to be controlled. If the pump to be controlled is a full-speed preceding standby pump that can operate at all water levels, it can be operated at all water levels, so there is no need to consider the minimum flow rate at which the pump can operate, and it is calculated by Equation 2. The number of pumps to be operated can be determined by dividing the target drainage amount and the drainage amount per pump (rated drainage amount). Here, while the target drainage amount is the drainage amount during the predicted leading time T, the pump rated drainage amount is usually given as the amount of drainage per minute or second as m 3 / min, m 3 / sec. The pump rated drainage is converted into the drainage per time T and then divided.
In addition, when the pump to be controlled is a conventional pump that cannot perform low-water operation and in-air operation, the low-water operation causes
The pump is started when the storage / drainage determination condition C (t 0 + u) satisfies the drainage condition, in other words, when the storage amount reaches the in-pipe storage amount target value so that the pump does not frequently start and stop. Thus, the number of pumps to be operated and the target flow rate are set according to the target flow rate obtained by Expression 4. The relationship between the target flow rate and the number of pumps operated is determined, for example, as shown in FIG. I do. A method of allocating pumps to be started and stopped in order of the unit No. (starting is performed by the unit No.
The method of determining the unit to be stopped while equalizing the operation time between pump units (units with short operation time and ready for start-up, with the operation time leveling between pump units) Starting in order from the start, and stopping in order of operation time).
【００２５】管内貯留量目標値は、電話回線等を通じて
オンラインで受信している降雨予報値から、予測先行時
間Ｔより長期間の降雨量予測値（たとえば１時間，３時
間，２４時間等）を入力として、大雨モード，小雨モー
ドを判定する。一例を示すと「現在時刻ｔ0 から１時間
の降雨が２０mmを越えると大雨モードの管内貯留量目標
値とし、以下の場合は小雨モードの設定値とする」等の
ルールによって大雨モード，小雨モードに応じた管内貯
留量のレベルを求める。The in-pipe storage target value is a rainfall forecast value (for example, 1 hour, 3 hours, 24 hours, etc.) longer than the predicted preceding time T, based on the rainfall forecast value received online through a telephone line or the like. As an input, a heavy rain mode and a light rain mode are determined. As an example "and the rain from the current time t 0 1 hour exceeding 20mm and pipe storage amount target value of heavy rain mode, following a set value of light rain mode if" heavy rain mode by such rules, light rain mode Find the level of the stored amount in the pipe according to.
【００２６】[0026]
【発明の効果】流入予測値より管内貯留量を算出し、目
標とする貯留レベルとの偏差に応じてポンプ運転台数を
決定するため、管渠の持つ貯留能力を生かしたポンプ場
の運用が可能となる。According to the present invention, the amount of in-pipe storage is calculated from the predicted inflow, and the number of pumps to be operated is determined according to the deviation from the target storage level. Therefore, it is possible to operate a pumping station utilizing the storage capacity of the sewer. Becomes
【図１】本発明の一実施例を示す雨水ポンプ制御システ
ムの全体構成図。FIG. 1 is an overall configuration diagram of a rainwater pump control system showing one embodiment of the present invention.
【図２】目標排水量・目標流量算出フロー図。FIG. 2 is a flowchart for calculating a target drainage amount and a target flow rate.
【図３】ポンプ台数制御ポンプ運転台数決定処理。FIG. 3 is a pump number control processing for determining the number of pumps to be operated.
１１…排水区域、１２…下水管渠、１３…ポンプ場、１
４…地上雨量計、１５…降雨データ、１６…レーダ雨量
計、１７…管渠内水位計、１８…管渠内水位データ（計
測値）、１９…流入渠水位、２１…流入量予測値、２２
…管内貯留量予測値、２３…目標流量、２４…管内貯留
量目標値、１１０…ポンプ井水位、113…固定速ポンプ
群、１１４…可変速ポンプ群、１１５…雨水流入量予測
部、116…管内貯留量予測部、１１７…目標排水量・流
量演算部、１１８…ポンプ台数制御部、１１９…管内貯
留量目標値演算部、１２０…雨水ポンプ制御装置。11 ... drainage area, 12 ... sewer, 13 ... pump station, 1
4: Ground rain gauge, 15: Rainfall data, 16: Radar rain gauge, 17: Water level data in the sewer, 18: Water level data (measured value) in the sewer, 19: Water level of the inflow sewer, 21: Predicted inflow amount, 22
··· Predicted storage amount in pipe, 23 · Target flow rate, 24 · Target value of storage quantity in pipe, 110 · Pump well water level, 113 · · · Fixed speed pump group, 114 · Variable speed pump group, 115 · · · Rainwater inflow rate prediction unit, 116 · · · In-pipe storage amount prediction section, 117: target drainage / flow rate calculation section, 118: pump number control section, 119: in-pipe storage amount target value calculation section, 120: rainwater pump control device.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−211693（ＪＰ，Ａ) 特開 平６−102911（ＪＰ，Ａ) 特開 平５−303407（ＪＰ，Ａ) 特開 平１−113810（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G05D 7/06 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-211693 (JP, A) JP-A-6-102911 (JP, A) JP-A-5-303407 (JP, A) JP-A-1- 113810 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) G05D 7/06
Claims (3)
して排水ポンプ場に導き放流する排水ポンプを制御する
ポンプ制御装置において、前記下水管渠に雨水が流入す
る流域の降雨データを入力して、現在時刻から一定時間
後までの単位時間毎に前記下水管渠に流入する雨水流入
量予測値を算出する雨水流入量予測部と、前記雨水流入
量予測部で算出した単位時間毎の雨水流入量予測値の積
算値と現在時刻の管渠内水位データを入力し現在時刻か
ら前記単位時間毎の管内貯留量予測値を算出する管内貯
留量予測部と、管内貯留量目標値を設定する管内貯留量
目標値演算部と、前記管内貯留量予測部で算出した管内
貯留量予測値が前記管内貯留量目標値より大きくなる前
記単位時間後は前記単位時間毎に前記雨水流入量予測部
で算出した単位時間毎の雨水流入量予測値を目標排水量
として出力する目標排水量演算部と、前記目標排水量を
入力して前記排水ポンプを制御するポンプ制御部とを具
備することを特徴とする雨水ポンプ制御装置。 1. A pump control device for controlling a drain pump which guides and discharges rainwater flowing into a drainage pump station through a sewerage pipe for temporarily storing inflowing rainwater, wherein rainfall data of a basin where rainwater flows into the sewerage pipe is input. A rainwater inflow predictor that calculates a predicted value of rainwater inflow flowing into the sewer for each unit time from the current time to a certain time later, and a rainwater inflow predictor that calculates the rainwater inflow prediction unit for each unit time. Set the in-pipe storage amount prediction unit that inputs the integrated value of the rainwater inflow amount prediction value and the in-drain water level data at the current time and calculates the in-pipe storage amount prediction value per unit time from the current time, and the in-pipe storage amount target value The in-pipe storage amount target value calculation unit, and the in-pipe storage amount prediction value calculated by the in-pipe storage amount prediction unit is larger than the in-pipe storage amount target value, after the unit time, the rainwater inflow amount prediction unit for each unit time. Unit time calculated in Rainwater pump controller to a target water discharge amount calculation unit for outputting the rainwater inflow prediction value as the target wastewater, characterized in that by entering the target amount of waste water comprising a pump control unit for controlling the drain pump for each.
して排水ポンプ場に導き放流する排水ポンプを制御する
ポンプ制御方法において、前記下水管渠に雨水が流入す
る流域の降雨データに基づいて現在時刻から一定時間後
までの単位時間毎に前記下水管渠に流入する雨水流入量
予測値を算出すると共に、前記単位時間毎の雨水流入量
予測値の積算値と現在時刻の管渠内水位データに基づい
て現在時刻から前記単位時間毎の管内貯留量予測値を算
出し、前記管内貯留量予測値が管内貯留量目標値より大
きくなる前記単位時間後は前記単位時間毎に前記雨水流
入量予測部で算出した単位時間毎の雨水流入量予測値を
目標排水量として前記排水ポンプを制御することを特徴
とする雨水ポンプ制御方法。 2. A pump control method for controlling a drainage pump which guides and discharges an inflowing rainwater to a drainage pumping station through a sewerage pipe for temporarily storing the rainwater, based on rainfall data of a basin where rainwater flows into the sewerage pipe. Calculating the predicted value of the amount of rainwater flowing into the sewer at each unit time from the current time to a certain time later, and calculating the integrated value of the predicted value of the amount of rainwater flowing per unit time and Based on the water level data, calculate the predicted value of the stored amount in the pipe for each unit time from the current time, and after the unit time when the predicted value of the stored amount in the pipe is larger than the target value of the stored amount in the pipe, the rainwater inflow is performed for the unit time. A rainwater pump control method, wherein the drainage pump is controlled by using a predicted rainwater inflow amount per unit time calculated by the amount prediction unit as a target drainage amount.
量を決める際に、気象予報の短時間数値予報値の１時間
ごとの予測降水量にて一定時間先までの予測総降雨量を
算出し、該予測総降雨量にて大雨モード，中雨モード及
び小雨モード或いは大雨モード，小雨モードのように降
雨量の大小に応じて定められるモードを判定し、各モー
ドに応じた貯留量を管内で貯留すべき雨水量として決定
することを特徴とする雨水ポンプ制御方法。3. The rainfall amount to be stored in the pipe according to claim 2, wherein the short-term numerical forecast value of the weather forecast predicts the hourly predicted rainfall amount and the predicted total rainfall amount up to a predetermined time ahead is determined. The calculated total rainfall is used to determine a mode determined according to the magnitude of the rainfall, such as the heavy rain mode, the medium rain mode and the light rain mode, or the heavy rain mode and the light rain mode, and the storage amount corresponding to each mode is determined. A rainwater pump control method characterized by determining the amount of rainwater to be stored in a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21999795A JP3294074B2 (en) | 1995-08-29 | 1995-08-29 | Rainwater pump control device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21999795A JP3294074B2 (en) | 1995-08-29 | 1995-08-29 | Rainwater pump control device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0962367A JPH0962367A (en) | 1997-03-07 |
| JP3294074B2 true JP3294074B2 (en) | 2002-06-17 |
Family
ID=16744320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21999795A Expired - Fee Related JP3294074B2 (en) | 1995-08-29 | 1995-08-29 | Rainwater pump control device and control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3294074B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002107462A (en) * | 2000-09-28 | 2002-04-10 | Foundation Of River & Basin Integrated Communications Japan | Rainfall food forecasting system |
| JP5289474B2 (en) * | 2005-02-25 | 2013-09-11 | 株式会社東芝 | Rainwater drainage support control device |
| CN107035673B (en) * | 2017-04-28 | 2019-01-18 | 广州杰赛科技股份有限公司 | The intelligent control device of drainage system |
| CN112700105B (en) * | 2020-12-25 | 2024-05-31 | 南通市规划设计院有限公司 | System, method and storage medium for constructing sponge city based on Internet and microcirculation system |
| WO2023220862A1 (en) * | 2022-05-16 | 2023-11-23 | 广东逸动科技有限公司 | Water leakage detection method, water leakage detection apparatus, electronic device, and storage medium |
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1995
- 1995-08-29 JP JP21999795A patent/JP3294074B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JPH0962367A (en) | 1997-03-07 |
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