JPH0849663A - Number of working units control device for conveying pump - Google Patents
Number of working units control device for conveying pumpInfo
- Publication number
- JPH0849663A JPH0849663A JP18383094A JP18383094A JPH0849663A JP H0849663 A JPH0849663 A JP H0849663A JP 18383094 A JP18383094 A JP 18383094A JP 18383094 A JP18383094 A JP 18383094A JP H0849663 A JPH0849663 A JP H0849663A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water level
- pump
- pumps
- control
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 174
- 230000008859 change Effects 0.000 claims abstract description 20
- 235000020681 well water Nutrition 0.000 claims abstract description 8
- 239000002349 well water Substances 0.000 claims abstract description 8
- 238000000746 purification Methods 0.000 claims description 20
- 230000007423 decrease Effects 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は取水から配水にいたる上
水プロセスの送水ポンプの台数制御に関し、特に、ファ
ジィ推論を用いて最適な制御を実現するものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to controlling the number of water supply pumps in a clean water process from water intake to water distribution, and more particularly to realizing optimum control using fuzzy inference.
【０００２】[0002]
【従来の技術】取水から配水にいたる各種の上水プロセ
スの一つである送水プロセスは、浄水場で浄化された上
水を需要家に配水するため配水池に送水するプロセスで
ある。一般的に、配水池は送水元である浄水場の停電や
消化など事故時を考慮して容量的に余裕を持たせてい
る。2. Description of the Related Art A water supply process, which is one of various types of water supply processes from intake to water distribution, is a process of supplying purified water purified at a water purification plant to a distribution reservoir for distributing it to consumers. Generally, the distribution reservoir has a sufficient capacity in consideration of an accident such as power failure or digestion of the water purification plant, which is the source of the water.
【０００３】このため、配水池水位の運用としては配水
池水位を高めに維持することで、ある程度の水位変動は
許容できることになり固定速の送水ポンプで計画される
場合が多い。Therefore, in order to operate the water level of the distribution reservoir, it is possible to allow a certain level of fluctuation in the distribution level by maintaining the water level of the distribution reservoir at a high level.
【０００４】ただし、配水池流出量は需要家の社会的な
活動パターンに依存し、時間単位で大きく変動すること
になり、送水量としても配水池流出量にある程度の追従
できる必要がある。However, the outflow amount of the distribution reservoir depends on the social activity pattern of the consumer, and it greatly fluctuates on an hourly basis, and it is necessary for the water supply amount to follow the outflow amount of the distribution reservoir to some extent.
【０００５】このため、送水ポンプは複数台で計画され
ることになり台数制御が必要になる。For this reason, a plurality of water supply pumps are planned, and it is necessary to control the number of water supply pumps.
【０００６】従来この送水ポンプの台数制御は、一般的
には図４に示すように、ある特定した配水池流出量パタ
ーンを前提として配水池水位に始動水位と停止水位を固
定的に設定し、それらの水位によるオン−オフ運転を行
っていた。Conventionally, in the control of the number of the water supply pumps, generally, as shown in FIG. 4, a starting water level and a stopping water level are fixedly set at the water level of the water reservoir on the assumption of a certain outflow pattern of the water reservoir. The on-off operation was performed depending on the water level.
【０００７】[0007]
【発明が解決しようとする課題】しかし、従来の方法で
は、配水池水位に始動水位と停止水位を固定的に設定
し、それらの水位によるオン−オフ（運転−停止）運転
を行っているため、次のような課題があった。However, in the conventional method, the starting water level and the stopping water level are fixedly set in the water level of the reservoir, and the on-off (operation-stop) operation is performed by these water levels. , There were the following issues.
【０００８】（１）配水池流出量パターンを特定するこ
とは、実プロセスにおいては困難であるにもかかわら
ず、前提とした特定パターンに対応して始動水位と停止
を固定的に設定している。(1) Although it is difficult to specify the outflow pattern of the distribution reservoir in the actual process, the starting water level and the stop are fixedly set according to the specified specific pattern. .
【０００９】（２）配水池水位を高目に運用することに
なるため、送水する際の実揚程が大きくなり送水効率が
低下する。(2) Since the water level of the distribution reservoir is operated at a high level, the actual pumping head at the time of water feeding becomes large and the water feeding efficiency decreases.
【００１０】（３）また、配水先である需要家の配水圧
力が高くなると共に、配水池の水位変動幅が大きくなる
ため配水管路に悪い影響を与えることになる。(3) Further, the water distribution pressure of the customer as the water distribution destination becomes high, and the fluctuation range of the water level of the water distribution reservoir becomes large, which adversely affects the water distribution pipeline.
【００１１】（４）前提外の流出量パターンや過大な流
出量パターンなどに対して、配水池水位の過大な低下や
送水ポンプの始動停止頻度を上昇させることになる。(4) For an outflow pattern or an outflow pattern which is not presupposed, the water level of the distribution reservoir is excessively decreased and the start / stop frequency of the water pump is increased.
【００１２】（５）結果的に最適な送水ができずポンプ
寿命の低下や電力消費量の上昇などを招くことになる。(5) As a result, optimum water supply cannot be achieved, leading to a reduction in pump life and an increase in power consumption.
【００１３】（６）現在の配水池井水位のみに着目した
制御方式であり、予測的な要素がないため制御性として
配水池流出量の変動に依存する割合が多くなるため、ロ
バストな制御とすることが困難である。(6) The control method focuses only on the current well level of the distribution reservoir, and since there is no predictive factor, the controllability depends more on the fluctuation of the discharge amount of the distribution reservoir. Is difficult.
【００１４】本発明は以上の点に鑑みてなされたもの
で、最適な固定速の送水ポンプ台数制御を実現すること
を目的とするものである。The present invention has been made in view of the above points, and an object thereof is to realize optimum control of the number of water feed pumps at a fixed speed.
【００１５】[0015]
【課題を解決するための手段】本発明において、上記の
課題を解決するための手段は、浄水場で浄化された浄水
ポンプ井の上水を、複数台の送水ポンプをオン、オフ制
御して配水池に送水する送水量を調整するようにした送
水ポンプの運転台数制御装置において、あらかじめ設定
したポンプ井の基準水位と浄水ポンプ井との水位偏差量
を検出して偏差信号ＨＰを出力するポンプ井水位偏差量
検出手段と、あらかじめ設定した配水池の基準水位と配
水池水位との水位偏差量を検出して偏差信号ＨＨを出力
する配水池水位偏差量検出手段と、配水池の水位を
Ｔ1，Ｔ2，Ｔ3時刻前の過去水位と現在水位との変化量
△Ｌ1，△Ｌ2，△Ｌ3を予測的な要素として演算する水
位変化量演算手段と、前記浄水ポンプ井の水位偏差信号
ＨＰと、配水池の水位偏差信号ＨＨと、配水池の変化量
△Ｌ1，△Ｌ2，△Ｌ3を入力変数とし、ポンプ増減指令
値△Ｎを出力変数として送水量を推論し、送水ポンプの
運転台数増減の確信値として出力するファジィ推論手段
と、該ファジィ推論手段の出力信号を離散値に変換し、
送水ポンプ増減台数指令信号をポンプ制御手段に出力す
るしきい値変換手段と、このしきい値変換手段の指令信
号を受けて前記送水ポンプの始動−停止を制御し、配水
池への送水量を調整するポンプ台数制御手段とを備え、
最適な固定速の送水ポンプの運転台数制御を実現する。Means for Solving the Problems In the present invention, the means for solving the above-mentioned problems is to control the on-off of a plurality of water pumps for the clean water of the water purification pump well purified at a water purification plant. A pump that outputs a deviation signal HP by detecting a water level deviation amount between a preset water level of a pump well and a purified water pump well in a control unit for the number of operating water pumps that adjusts the amount of water to be sent to a reservoir The well water level deviation amount detecting means, the distribution water level deviation amount detecting means for detecting the water level deviation amount between the preset reference water level of the distribution reservoir and the distribution reservoir water level, and outputting the deviation signal HH, and the distribution water level T Water level change amount calculation means for calculating the change amounts ΔL 1 , ΔL 2 , ΔL 3 between the past water level and the current water level before 1 , T 2 , T 3 times as predictive elements, and the water purification pump well Water level deviation signal HP and water of distribution reservoir The unit deviation signal HH and the change amounts ΔL 1 , ΔL 2 , and ΔL 3 of the reservoir are used as input variables, and the pump increase / decrease command value ΔN is used as an output variable to infer the amount of water to be supplied, and the increase / decrease in the number of operating water pumps Fuzzy inference means outputting as a certainty value, and converting the output signal of the fuzzy inference means into discrete values,
A threshold conversion means for outputting a command signal for increasing / decreasing the number of water pumps to the pump control means, and controlling the start / stop of the water pump in response to the command signal of the threshold conversion means to control the amount of water supplied to the reservoir. And a means for controlling the number of pumps for adjustment,
Achieve optimal control of the number of operating water pumps at a fixed speed.
【００１６】[0016]
【作用】ポンプ台数制御部のファジィ推論手段には、あ
らかじめ設定した浄水ポンプ井の基準水位と浄水ポンプ
井との水位偏差信号ＨＰと、配水池の設定基準水位と配
水池の水位との偏差信号ＨＨおよびＴ1，Ｔ2，Ｔ3秒前
の過去水位と現在水位の３つの変化量信号△Ｌ1，△
Ｌ2，△Ｌ3が入力され、当該ファジィ推論部では、入力
変数である偏差信号ＨＰ，ＨＨおよび配水池の変化量信
号△Ｌ1，△Ｌ2，△Ｌ3および出力変数であるポンプ増
減台数指令信号△Ｎを５段階のメンバーシップ関数と推
論のためのルールマトリックスによるＩＦ〜ＴＨＥＮル
ールに基づいてポンプ増減値を推論し、その結果の出力
信号をしきい値変換手段により離散値に変換してポンプ
台数制御手段を介して複数台の送水ポンプの始動−停止
制御を行う。In the fuzzy inference means of the pump number control unit, the preset reference water level of the water purification well and the water level deviation signal HP between the water purification well and the deviation signal between the set reference water level of the distribution reservoir and the water level of the distribution reservoir are set. HH and three change amount signals of past water level and current water level before T 1 , T 2 , T 3 seconds ΔL 1 , Δ
L 2 , ΔL 3 are input, and in the fuzzy inference unit, deviation signals HP, HH which are input variables and change amount signals ΔL 1 , ΔL 2 , ΔL 3 of the reservoir and pump increase / decrease which are output variables. The pump increase / decrease value is inferred based on the IF-THEN rule based on the five-step membership function and the rule matrix for inference of the number command signal ΔN, and the resulting output signal is converted into discrete values by the threshold conversion means. Then, the start / stop control of the plurality of water feed pumps is performed via the pump number control means.
【００１７】[0017]
【実施例】以下、本発明を図面に示す一実施例に基づい
て説明する。図１は本発明の一実施例のシステム構成図
を示し、同図において、１は浄水場で、該浄水場１は処
理水を浄化する浄水プロセス部２と、処理された浄水を
一旦貯留する浄水ポンプ井３と、この浄水ポンプ井３の
上水を配水池６に送水する複数台の送水ポンプ４（Ｐ1
〜Ｐn）を備えている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. FIG. 1 shows a system configuration diagram of an embodiment of the present invention. In FIG. 1, 1 is a water purification plant, which is a water purification process unit 2 for purifying treated water, and temporarily storing treated water. The water purification pump well 3 and a plurality of water supply pumps 4 (P 1 for supplying the clean water of the water purification well 3 to the distribution reservoir 6
˜P n ).
【００１８】５は浄水ポンプ井３の水位を計測する水位
計，７は配水池６の水位を計測する水位計を示す。Reference numeral 5 is a water level gauge for measuring the water level of the water purification pump well 3, and 7 is a water level gauge for measuring the water level of the distribution reservoir 6.
【００１９】１０はポンプ台数制御部で、後述のファジ
ィ推論手段１５を備えている。１１は浄水ポンプ井３の
水位計５の出力信号と基準水位設定器１２の設定信号と
を比較してその偏差を検出するポンプ井水位偏差量検出
手段で、検出された偏差信号ＨＰはファジィ推論手段１
５に入力される。Reference numeral 10 denotes a pump number control unit, which is provided with a fuzzy inference means 15 described later. Reference numeral 11 is a pump well water level deviation amount detecting means for comparing the output signal of the water level gauge 5 of the clean water pump well 3 with the setting signal of the reference water level setting device 12, and detecting the deviation. The detected deviation signal HP is fuzzy inference. Means 1
5 is input.
【００２０】１３は配水池６の水位計７の出力信号と基
準水位設定器１４の信号とを比較して、その偏差を検出
する配水池水位偏差量検出手段で、検出された偏差信号
ＨＨはファジィ推論手段１５に入力される。１６は配水
池６の水位変化量演算手段で、水位計７の出力信号を入
力し、図２に示すように、Ｔ1，Ｔ2，Ｔ3秒前の過去水
位と現在水位との３つの変化量△Ｌ1，△Ｌ2，△Ｌ3を
演算してファジィ推論手段１５に入力する。なお、図２
は縦軸に配水池の水位を、横軸に時間をとっている。Reference numeral 13 is a distribution water level deviation amount detecting means for comparing the output signal of the water level gauge 7 of the distribution water reservoir 6 with the signal of the reference water level setting device 14 and detecting the deviation signal HH. It is input to the fuzzy inference means 15. Reference numeral 16 is a water level change amount calculating means of the distribution reservoir 6, which inputs the output signal of the water level gauge 7 and, as shown in FIG. 2, has three levels of past water level before T 1 , T 2 and T 3 seconds and current water level. The change amounts ΔL 1 , ΔL 2 , ΔL 3 are calculated and input to the fuzzy inference means 15. Note that FIG.
Shows the water level of the reservoir on the vertical axis and time on the horizontal axis.
【００２１】１７はしきい値変換手段で、ファジィ推論
手段１５の出力信号△Ｎはポンプ増減の確信値（連続
値）となるため、そのままポンプ増減台数指令（離散
値）にできないため、このしきい値変換手段１７により
離散値に変換し、ポンプ増減台数指令信号としてポンプ
台数制御手段１８に出力し、該ポンプ台数制御手段１８
で複数の送水ポンプ４のうち該当するポンプの運転又は
停止の制御を行う。Numeral 17 is a threshold value conversion means, and since the output signal ΔN of the fuzzy inference means 15 becomes a certain value (continuous value) of pump increase / decrease, it cannot be directly used as the pump increase / decrease number command (discrete value). The threshold value converting means 17 converts it into a discrete value and outputs it as a pump increase / decrease number command signal to the pump number controlling means 18, and the pump number controlling means 18
Controls the operation or stop of the corresponding pump among the plurality of water pumps 4.
【００２２】ファジィ推論手段１５では、入力変数（現
象項目）であるＴ1秒前変化量△Ｌ1，Ｔ2秒前変化量△
Ｌ2，Ｔ3秒前変化量△Ｌ3の各信号と、配水池の水位偏
差信号ＨＨ，浄水ポンプ井の水位偏差信号ＨＰおよび出
力変数（原因項目）であるポンプ増減指令値△Ｎを図３
のＮＢ，ＮＳ，ＺＯ，ＰＳ，ＰＢの５段階のメンバーシ
ップ関数として定め、推論のためのルールマトリックス
を表１のように規定する。In the fuzzy inference means 15, the input variables (phenomenon items) T 1 second before change ΔL 1 , T 2 second before change Δ
L 2 and T 3 seconds before change amount ΔL 3 signal, water level deviation signal HH of distribution reservoir, water level deviation signal HP of water purification pump well and pump increase / decrease command value ΔN which is output variable (cause item) Three
NB, NS, ZO, PS, and PB are defined as membership functions in five stages, and a rule matrix for inference is defined as shown in Table 1.
【００２３】[0023]
【表１】 [Table 1]
【００２４】このルールマトリックスによるＩＦ〜ＴＨ
ＥＮルールに基づいてポンプ増減値を推論し、ポンプ台
数制御手段１８へ送出する。ポンプ台数制御手段１８で
は、この指令を受けて複数台の送水ポンプのオン−オフ
制御を行って運転台数を制御する。IF to TH according to this rule matrix
The pump increase / decrease value is inferred based on the EN rule and sent to the pump number control means 18. In response to this command, the pump number control means 18 performs on / off control of a plurality of water pumps to control the number of operating pumps.
【００２５】[0025]
【発明の効果】以上説明したように、本発明では、配水
池水位については固定的な始動水位と停止水位を設定せ
ずに、基準となる水位を設定し、また浄水ポンプ井水位
についても基準水位を設定して、送水元の状況も考慮
し、更に、配水池水位については、時刻Ｔ1，Ｔ2，Ｔ3
秒前の過去水位と現在水位の３つの変化量を予測的要素
として、水位傾向を把握し、２つの水位偏差と３つの変
化量を現象項目とし、ポンプ増減台数指令を原因項目と
してファジィ推論を行うようにしたので、 （１）配水池の流出量パターンを特定する必要がなく、
実プロセスへの適用が容易な実用性があり、また広範囲
の流出量パターンに対応できる柔軟性がある。As described above, in the present invention, the reference water level is set for the reservoir water level without setting the fixed start water level and stop water level, and the water purification pump well water level is also set as the standard. The water level is set and the situation of the water source is also taken into consideration. Further, regarding the water level of the reservoir, the time T 1 , T 2 , T 3
The water level tendency is grasped by using the three change amounts of the past water level and the current water level two seconds before as predictive factors, and the two water level deviations and the three change amounts are used as the phenomenon items, and the fuzzy reasoning is performed using the pump increase / decrease command as the cause item. Since it was done, (1) It is not necessary to specify the outflow pattern of the reservoir,
It has the practicality of being easily applied to the actual process, and has the flexibility to handle a wide range of outflow patterns.
【００２６】（２）配水池の水位傾向により予測的な要
素も判断しているため、過大な流出量パターンに対して
は配水池水位の過大な低下を防止すると共に、ポンプの
始動停止頻度を低減できる。(2) Since predictive factors are also judged from the water level tendency of the distribution reservoir, an excessive decrease in the distribution reservoir water level can be prevented and the pump start-stop frequency can be adjusted for an excessive outflow pattern. It can be reduced.
【００２７】（３）広範囲の流出量パターンに対してポ
ンプ寿命の低下や電力消費量の上昇などを防止できる。
さらに、水位変動幅が低減できることにより需要家への
配水圧力変動と配水管路への悪影響を減少できる。(3) It is possible to prevent a decrease in pump life and an increase in power consumption for a wide range of outflow patterns.
Furthermore, since the fluctuation range of the water level can be reduced, the fluctuation of the distribution pressure to the customer and the adverse effect on the distribution pipeline can be reduced.
【００２８】（４）予測的な要素により、制御性として
配水池流出量の変動に依存する割合を少なくできること
になり、よりロバストな制御となる。(4) The predictive factor makes it possible to reduce the proportion of the controllability which depends on the fluctuation of the outflow of the reservoir, resulting in more robust control.
【００２９】（５）ファジィ推論を使用しており柔軟な
アルゴリズムの構成が可能であり、そのルールの変更や
修正なども容易にできる。(5) Since fuzzy inference is used, a flexible algorithm can be constructed, and the rule can be easily changed or modified.
【００３０】等の優れた効果を奏するものである。It has excellent effects such as
【図１】本発明の一実施例の構成図。FIG. 1 is a configuration diagram of an embodiment of the present invention.
【図２】配水池の水位変化量演算手段の説明図。FIG. 2 is an explanatory view of a water level change amount calculation means of a distribution reservoir.
【図３】メンバーシップ関数。FIG. 3 Membership function.
【図４】従来の送水ポンプ運転台数制御の説明図。FIG. 4 is an explanatory view of conventional control of the number of operating water pumps.
１…浄水場 ２…浄水プロセス ３…浄水ポンプ井 ４…送水ポンプ ５、７…水位計 ６…配水池 １０…ポンプ台数制御部 １１…ポンプ井水位偏差量検出手段 １２…ポンプ井の水位基準水位設定器 １３…配水池水位偏差量検出手段 １４…配水池の基準水位設定器 １５…ファジィ推論手段 １６…配水池の水位変化量演算手段 １７…しきい値変換手段 １８…ポンプ台数制御手段 1 ... Water purification plant 2 ... Water purification process 3 ... Water purification pump well 4 ... Water pump 5, 7 ... Water level gauge 6 ... Distribution reservoir 10 ... Pump number control unit 11 ... Pump well water level deviation amount detection means 12 ... Pump well water level standard water level Setting device 13 ... Distribution reservoir water level deviation amount detecting means 14 ... Distribution reservoir reference water level setting device 15 ... Fuzzy inference means 16 ... Distribution reservoir water level change calculating means 17 ... Threshold converting means 18 ... Pump number controlling means
Claims (1)
を、複数台の送水ポンプをオン−オフ制御して配水池に
送水する送水量を調整するようにした送水ポンプの運転
台数制御装置において、 あらかじめ設定したポンプ井の基準水位と浄水ポンプ井
との水位偏差量を検出して偏差信号ＨＰを出力するポン
プ井水位偏差量検出手段と、あらかじめ設定した配水池
の基準水位と配水池水位との水位偏差量を検出して偏差
信号ＨＨを出力する配水池水位偏差量検出手段と、配水
池の水位をＴ1，Ｔ2，Ｔ3時刻前の過去水位と現在水位
との変化量△Ｌ1，△Ｌ2，△Ｌ3を予測的な要素として
演算する水位変化量演算手段と、前記浄水ポンプ井の水
位偏差信号ＨＰと、配水池の水位偏差信号ＨＨと、配水
池の変化量△Ｌ1，△Ｌ2，△Ｌ3を入力変数とし、ポン
プ増減指令値△Ｎを出力変数として送水量を推論し、送
水ポンプの運転台数増減の確信値として出力するファジ
ィ推論手段と、該ファジィ推論手段の出力信号を離散値
に変換し、送水ポンプ増減台数指令信号をポンプ制御手
段に出力するしきい値変換手段と、このしきい値変換手
段の指令信号を受けて前記送水ポンプの始動−停止を制
御し、配水池への送水量を調整するポンプ台数制御手段
とを備えたことを特徴とする送水ポンプの運転台数制御
装置。1. A control of the number of operating water pumps for adjusting the amount of water supplied to the distribution reservoir by controlling the on / off operation of a plurality of water pumps for the clean water from the water purification pump well purified at the water purification plant. In the device, a pump well water level deviation amount detecting means for detecting a water level deviation amount between the preset pump well and the purified water pump well and outputting a deviation signal HP, and a preset reference water level and distribution reservoir A distribution reservoir water level deviation amount detecting means for detecting a deviation amount from the water level and outputting a deviation signal HH, and a change amount between the past water level and the present water level before the water level of the distribution reservoir T 1 , T 2 , T 3 Water level change amount calculation means for calculating ΔL 1 , ΔL 2 , ΔL 3 as predictive elements, the water level deviation signal HP of the water purification pump well, the water level deviation signal HH of the reservoir, and the change of the reservoir the amount △ L 1, △ L 2, enter the △ L 3 variables Then, the fuzzy inference means for deducing the water supply amount by using the pump increase / decrease command value ΔN as an output variable and outputting it as a certainty value for the increase / decrease in the number of operating water pumps, and the output signal of the fuzzy inference means are converted into discrete values for water supply. A threshold conversion means for outputting a pump increase / decrease number command signal to the pump control means, and control of start / stop of the water supply pump in response to the command signal of the threshold conversion means to adjust the water supply amount to the distribution reservoir. And a control unit for controlling the number of operating water pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18383094A JP3417068B2 (en) | 1994-08-05 | 1994-08-05 | Control unit for the number of operating water pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18383094A JP3417068B2 (en) | 1994-08-05 | 1994-08-05 | Control unit for the number of operating water pumps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0849663A true JPH0849663A (en) | 1996-02-20 |
| JP3417068B2 JP3417068B2 (en) | 2003-06-16 |
Family
ID=16142597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18383094A Expired - Fee Related JP3417068B2 (en) | 1994-08-05 | 1994-08-05 | Control unit for the number of operating water pumps |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3417068B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4975397A (en) * | 1985-04-13 | 1990-12-04 | Feldmuehle Aktiengesellschaft | Sintered molding, a method for producing it and its use |
| CN103089596A (en) * | 2011-11-01 | 2013-05-08 | 株式会社日立制作所 | Pump control system |
| CN107503401A (en) * | 2017-08-28 | 2017-12-22 | 广东工业大学 | A kind of control device, the system and method for domestic water-storage system |
| CN112253323A (en) * | 2020-09-09 | 2021-01-22 | 南京航空航天大学 | Constant oil pressure fuzzy adaptive control system of aviation high pressure fuel pump and its control method |
-
1994
- 1994-08-05 JP JP18383094A patent/JP3417068B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4975397A (en) * | 1985-04-13 | 1990-12-04 | Feldmuehle Aktiengesellschaft | Sintered molding, a method for producing it and its use |
| CN103089596A (en) * | 2011-11-01 | 2013-05-08 | 株式会社日立制作所 | Pump control system |
| CN107503401A (en) * | 2017-08-28 | 2017-12-22 | 广东工业大学 | A kind of control device, the system and method for domestic water-storage system |
| CN112253323A (en) * | 2020-09-09 | 2021-01-22 | 南京航空航天大学 | Constant oil pressure fuzzy adaptive control system of aviation high pressure fuel pump and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3417068B2 (en) | 2003-06-16 |
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