JPH0962367A - Rainwater pump control device and method - Google Patents
Rainwater pump control device and methodInfo
- Publication number
- JPH0962367A JPH0962367A JP7219997A JP21999795A JPH0962367A JP H0962367 A JPH0962367 A JP H0962367A JP 7219997 A JP7219997 A JP 7219997A JP 21999795 A JP21999795 A JP 21999795A JP H0962367 A JPH0962367 A JP H0962367A
- Authority
- JP
- Japan
- Prior art keywords
- rainwater
- pump
- amount
- target
- pipe
- 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.)
- Granted
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)
Abstract
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 in a rainwater drainage pump station for sewerage, and more particularly to a predictive control method for predicting the amount of rainwater flowing into a pipe 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 rainwater pump control method, as shown in, for example, Japanese Unexamined Patent Publication No. 19402/1988, the rainwater inflow amount is predicted in order to follow the rainwater inflow that suddenly flows in during heavy rain. It is known that the pump is started and stopped in advance in anticipation of a dead time required for starting and stopping the pump or restarting after the stop.
【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 pipes, in order to prevent urban floods, the pipe diameter and pipe length are made large, and not only as a waterway for draining inflowing rainwater, but also in a situation of rainfall. In response to this, things that try to temporarily store rainwater have come to be constructed. By temporarily storing rainwater in the pipe, it is possible to cut the peak runoff to the discharge destination river, or to send the stored rainwater to a sewage treatment plant after the end of rainfall and then discharge it to a river, etc. That is why.
【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 this way, when the pipe has a dual role of drainage and storage, in the prior art typified by the above, the inflow predicted value is used only for starting the pump in advance. No consideration was given to the amount of storage in the pipe, and it was not suitable for controlling the amount of storage of rainwater to the pipe system such as rivers by setting the storage amount to an appropriate scale. In addition, as a prior art considering the amount of rainwater stored in the pipe, Japanese Patent Laid-Open No.
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。DISCLOSURE OF THE INVENTION The present invention is intended to effectively utilize the storage capacity of a conduit.
【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 a rainwater drainage system for pumping rainwater flowing in through a sewer pipe at a rainwater drainage pump station having at least one pump capable of controlling the flow rate and discharging the rainwater to a river or the sea. In the pump control device of the pump equipment, based on the rainfall data obtained from the rain gauge that measures the rainfall in the basin at regular intervals, the inflow of rainwater that flows into the pipe until a certain time ahead is determined at predetermined times. For each predetermined time, the predicted rainwater inflow predicting unit and the predicted value of the in-pipe storage amount when there is no pump operation based on the rainwater inflow predicted by the rainwater inflow predicting unit and the water level data in the pipe In-pipe storage amount predicting unit for calculating, in-pipe storage amount target value calculating unit for setting in-pipe storage amount target value, and in-pipe storage amount target value calculating unit from in-pipe storage amount predicted value obtained by the in-pipe storage amount predicting unit In-pipe storage set in A value obtained by subtracting the target value is obtained at each time up to a fixed time ahead of the current time, and the predicted rainwater inflow amount at each time from the time when this value becomes a positive number to the fixed time ahead is the target pump at each time. The amount of drainage
A target drainage / flow rate calculation unit that calculates the drainage flow rate by setting the target drainage rate to zero while it is a negative number, and controls the number of pumps and the number of revolutions of the pump based on the target drainage rate / flow rate calculated 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。Rainwater flowing in through the sewer pipe is
In a pump control method for rainwater drainage pump equipment that pumps water at a rainwater drainage pump station that has at least one flow controllable pump and discharges it into rivers, seas, etc., obtain it from a rain gauge that measures rainfall in a basin at regular intervals. Based on the rainfall data obtained, the rainwater inflow into the pipe will be predicted at a predetermined time until a certain time ahead, and the pump operation will be performed from the obtained rainwater inflow amount and the water level data in the pipe. If not, the in-pipe storage amount is calculated at each of the predetermined times, and the value obtained by subtracting the calculated in-pipe storage amount from the preset in-pipe storage amount target value is obtained 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 the fixed time is set as the target pump discharge amount at each time, and the drainage flow rate is set by setting the target discharge amount as a negative value to zero. 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 of the present invention, when determining the amount of rainwater to be stored in the pipe, the forecast total rainfall amount up to a certain time ahead is calculated by the hourly forecast rainfall amount of the short-term numerical forecast value of the weather forecast. The calculated total rainfall is used to determine a mode such as heavy rain mode, medium rain mode and light rain mode, or heavy rain mode, light rain mode, which is determined according to the amount of rainfall, and the storage amount according to each mode. 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。[Operation] By setting the in-pipe storage amount target value, it is possible to obtain the estimated value of the total rainwater inflow amount or in-pipe storage amount change up to the certain time by the process of accumulating the inflow estimated value up to the certain time By doing so, it is possible to calculate the deviation from the above-mentioned total inflow amount or the predicted value of the change in the pipe storage amount, and use this as the target drainage amount within the fixed time or the target flow rate until the fixed time ahead, and control the number of pumps. It is possible to set the value in consideration of the storage 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, and
It is possible to judge light rain, and it is possible to operate storage pipes according to the amount of rainfall per rain unit.
【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 in the embodiment. Drainage area 1 of pump station 13
The rainfall at 1 flows into the pumping station 13 through the sewer pipe 12. At the pump station 13, the inflowing rainwater is discharged to the river or the sea by the variable speed pump group 114 and the fixed speed pump group 113 whose flow rate can be controlled 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 discharges the drainage from the ground rain gauge 14 or the radar rain gauge 16 installed in the drainage area 11 as one or more units as measurement data related to the drainage area 11. The amount of rainfall in the area 11 is collected in real time by the water level gauge 17 in the ditch, and the pump well water level 110, the inflow ditch water level 19, and the pump operating state 112 are measured in real time as the measurement data of the pump station 13. Collects and receives the weather forecast data distributed by data communication such as a telephone line represented by MICOS of the Japan Meteorological Association, collects these data, and performs a control operation based on the received data to obtain a fixed speed. 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 predicting unit 115, a pipe storage amount predicting unit 116, a target drainage amount /
It is composed of a flow rate calculation unit 117, a pump number control unit 118, and a pipe storage amount 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 prediction unit 115 to the target discharge amount / flow rate calculation unit 117. The processing procedure from the forecast of rainwater inflow to the calculation of the target drainage amount / target flow rate 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 predicts the rainwater inflow up to a given fixed time (hereinafter, referred to as a predicted leading time T) by using the rainfall data 15 and the water level data 18 in the conduit. As a predictive calculation method, only the rainfall data 15 measured by a ground rain gauge or a radar rain gauge is used, and a tank model and a storage function model that have been applied to a river runoff model (for example, "Kotoo Sato""Floodrunoff" Calculation method ”, issued May 20, 1982, Sankaido), and modified RRL (RRL,) for using both rainfall data and water level data in the pipe
Models based on the Road Research Laboratory method (for example, “About pump operation support at pump stations” Takahashi et al., Proc. 31st Conference on Sewerage Research, P68
3 to 685). There are also parametric methods such as AR (auto regression) models and multiple regression models. Here, the rainwater inflow amount until the predicted leading time T is obtained using one of these prediction methods (inflow amount predicted value 21). Inflow prediction value is
The period up to the predicted preceding time t is calculated at unit time (for example, 1 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 predicting unit 116 integrates the rainwater inflow amount qp (i) (i = 0, 1 to T) calculated by the rainwater inflow amount predicting unit 115, as shown in Equation 1, and predicts the preceding time. The predicted value 22 of the in-pipe storage amount at each time is calculated.
Since the predicted value 22 of the in-pipe storage amount calculated by Equation 1 does not consider the pump drainage amount, it is the in-pipe storage amount when it is actually assumed that all the pumps are 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 discharge amount / flow rate calculation unit 117,
From the in-pipe storage amount target value 24 previously calculated and set by the in-pipe storage amount target value calculation unit 119 and the in-pipe storage amount predicted value 22, the drainage amount to be drained by the predicted leading time by the equation 2 (target drainage amount 25) And the target flow rate 23 at each time until after the predicted preceding time T. In order to calculate the target flow rate, first, the storage / drainage determination condition C (t 0 + u) is calculated by Equation 3 for each time from u = 0 to 1 to T. C (t 0 + u) indicates that drainage by the pump is required if it is a positive number, and drainage by the pump is not required, that is, it should be stored, if it is a negative number or zero. Next, C (t 0 +
The target flow rate is calculated by Equation 4 depending on whether the u) is positive or negative. Number 4
When the pump drainage condition is satisfied as shown in, the target flow rate is the rainwater inflow predicted value 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## EQU2 ## 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 +
Drainage amount required up to T) max {a, b}: calculation for selecting the larger one of a and b V s (t 0 ): target value of pipe storage amount at time t 0
【００２１】[0021]
【数３】 Ｃ（ｔ0＋ｕ）＝Ｖ（ｔ0＋ｕ）−Ｖs（ｔ0） …（数３）[Equation 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 were calculated by the above processing. Next, the pump number control unit 118, based on these target values, starts and stops the pump,
It is 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 method of controlling the number of units depends 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 operate at all water levels, so there is no need to consider the minimum flow rate at which the pump can operate The number of pumps operating can be determined by dividing the target discharge amount and the discharge amount per pump (rated discharge amount). Here, while the target discharge amount is the discharge amount during the predicted leading time T, the pump rated discharge amount is usually given as m 3 / min, m 3 / sec by the discharge amount per minute or second, The pump rated drainage is converted into the drainage per unit time T and then divided.
If the pump to be controlled is a conventional pump that cannot be operated in low water level or in the air,
When the storage / drainage determination condition C (t 0 + u) satisfies the drainage condition so that the pump does not start and stop frequently, in other words, the pump is started when the storage amount reaches the pipe storage amount target value. As described above, the number of operating pumps and the target flow rate are set according to the target flow rate obtained by the equation 4. As for the relationship between the target flow rate and the number of pumps operating, as shown in FIG. 3, for example, the number of operating machines is determined for each target flow rate, and the number of operating machines when the flow rate is increasing / decreasing is provided with hysteresis to determine the number of operating machines. To do. No. of pumps to be started and stopped is assigned in order of No.
In ascending order, stopping is in descending order of machine No. or in descending order), method of determining operation stopped machines while trying to equalize operating time between pumps (equipment with less operation time and ready to start) From the start, the stop is from the longest running 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 amount target value is a rainfall forecast value (for example, 1 hour, 3 hours, 24 hours, etc.) longer than the forecast leading time T from the rainfall forecast value received online through a telephone line or the like. The heavy rain mode and the light rain mode are determined as inputs. As an example, the heavy rain mode and the light rain mode are determined according to a rule such as "if the rainfall for one hour from the current time t 0 exceeds 20 mm, the storage amount in the heavy rain mode is set as the target value, and in the following cases, the light rain mode is set." Determine the level of storage 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。[Effects of the Invention] Since the storage amount in the pipe is calculated from the estimated inflow value and the number of pumps to be operated is determined according to the deviation from the target storage level, it is possible to operate the pumping station by utilizing the storage capacity of the pipe. 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 an embodiment of the present invention.
【図２】目標排水量・目標流量算出フロー図。[Fig. 2] Target flow rate / target flow rate calculation flow chart.
【図３】ポンプ台数制御ポンプ運転台数決定処理。FIG. 3 Pump number control process for determining the number of pumps operating.
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 pipe, 13 ... Pump station, 1
4 ... Surface rain gauge, 15 ... Rainfall data, 16 ... Radar rain gauge, 17 ... Pipeline water level gauge, 18 ... Pipeline water level data (measured value), 19 ... Inflow channel water level, 21 ... Inflow forecast value, 22
... In-pipe storage amount predicted value, 23 ... Target flow rate, 24 ... In-pipe storage amount target value, 110 ... Pump well water level, 113 ... Fixed speed pump group, 114 ... Variable speed pump group, 115 ... Rainwater inflow prediction unit, 116 ... In-pipe storage amount prediction unit 117, target drainage amount / flow rate calculation unit, 118 ... Pump number control unit, 119 ... In-pipe storage amount target value calculation unit, 120 ... Rainwater pump control device.
Claims (3)
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であって、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雨水ポ
ンプ制御装置。1. A pump control device for a rainwater drainage pump facility for pumping rainwater flowing in through a sewer pipe at a rainwater drainage pump station having at least one pump capable of controlling the flow rate and discharging the rainwater to a river or the sea. Prediction of rainwater inflow into the conduit at a predetermined time based on the rainfall data obtained from a rain gauge that measures rainfall in the basin at regular intervals Section and a piped storage amount prediction for calculating a piped storage amount predicted value when there is no pump operation based on the rainwater inflow amount predicted by the rainwater inflow prediction unit and the pipe water level data at each predetermined time. Section, a pipe storage amount target value calculation unit for setting a pipe storage amount target value,
A value obtained by subtracting the in-pipe storage amount target value set in the in-pipe storage amount target value calculation unit from the in-pipe storage amount predicted value obtained by the in-pipe storage amount prediction unit at each time up to a certain time ahead of the current time, A target drainage volume that calculates the drainage flow rate by setting the predicted value of rainwater inflow at each time from the time when this value becomes a positive number to the fixed time ahead as the target pump drainage volume at each time, and the target drainage volume while being a negative number as zero・ Flow rate calculation unit and the target drainage amount ・ Target drainage amount obtained by the flow rate calculation unit ・
A rainwater pump control device comprising: a pump number control unit that controls the number of pumps operating and the number of revolutions of the pump based on the flow rate.
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であって、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
が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
を特徴とする雨水ポンプ制御方法。2. A pump control method for rainwater drainage pump equipment for pumping rainwater flowing in through a sewer pipe at a rainwater drainage pump station having at least one pump capable of controlling the flow rate and discharging the pumped water into a river, the sea or the like. Based on the rainfall data obtained from a rain gauge that measures the rainfall in the basin at regular intervals, the inflow of rainwater that flows into the pipe up to a certain time ahead is predicted and obtained at each predetermined time. The in-pipe storage amount when there is no pump operation is calculated from the predicted rainwater inflow value and the in-pipe water level data at each of the predetermined times, and the calculated in-pipe storage amount is subtracted from the preset in-pipe storage amount target value. Is calculated at each time up to a certain time ahead of the current time, and the predicted rainwater inflow at each time from the time when this value becomes a positive number to the fixed time ahead is set as the target pump discharge amount at each time, and a negative number Calculated wastewater flow rate target wastewater between certain zero, resulting rainwater pump control method is characterized in that so as to control the number of operating and the rotational speed of the pump based on the target amount of waste water Flow rate.
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 method according to claim 2, wherein when determining the amount of rainwater to be stored in the pipe, the predicted total rainfall amount up to a certain time ahead is calculated by the predicted precipitation amount per hour of the short-term numerical forecast value of the weather forecast. Calculate the calculated total rainfall, determine the mode determined according to the amount of rainfall, such as heavy rain mode, medium rain mode and light rain mode or heavy rain mode, light rain mode, the storage amount according to each mode A rainwater pump control method characterized by determining as 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 true JPH0962367A (en) | 1997-03-07 |
| JP3294074B2 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) |
Cited By (5)
| 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 |
| JP2011154029A (en) * | 2005-02-25 | 2011-08-11 | Toshiba Corp | Support control device for rain-water drainage |
| CN107035673A (en) * | 2017-04-28 | 2017-08-11 | 广州杰赛科技股份有限公司 | The intelligent control device of drainage system |
| CN112700105A (en) * | 2020-12-25 | 2021-04-23 | 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 |
-
1995
- 1995-08-29 JP JP21999795A patent/JP3294074B2/en not_active Expired - Fee Related
Cited By (6)
| 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 |
| JP2011154029A (en) * | 2005-02-25 | 2011-08-11 | Toshiba Corp | Support control device for rain-water drainage |
| CN107035673A (en) * | 2017-04-28 | 2017-08-11 | 广州杰赛科技股份有限公司 | The intelligent control device of drainage system |
| CN112700105A (en) * | 2020-12-25 | 2021-04-23 | 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 |
| 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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| Publication number | Publication date |
|---|---|
| JP3294074B2 (en) | 2002-06-17 |
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