JP6986979B2 - 空圧システムのリアルタイム制御装置および方法 - Google Patents
空圧システムのリアルタイム制御装置および方法 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/06—Mobile combinations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/09—Flow through the pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6654—Flow rate control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
- F15B2211/8855—Compressible fluids, e.g. specific to pneumatics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Pressure (AREA)
Description
空気圧縮機吐出部圧力センサ3は、空気圧縮機本体2から吐出する圧縮空気の圧力を計測する。計測された圧力値は、制御装置4および流量差分演算装置15に出力される。
式1:ΔQi=D4i−D5i
制御装置4は、偏差量ΔQを解消するように電動機6を制御する。具体的には、偏差量ΔQが正の値であれば電動機6の回転数を上げ、負の値であれば回転数を下げることで偏差量ΔQが0に近づくように制御を行う。より詳細な制御方法については、例えばPID制御のようなフィードバック制御を行っても良いし、ΔQが0となる電動機6の回転数を演算して電動機6の回転数を指定するように制御してもよい。
△QC=K(Pi−P0) (P≦Piの場合)
△QC=0 (P>Piの場合)
ここで、Pは、偏差量ΔQ=0の時の末端圧力で、Kは、圧力差と流量偏差量との関係を表す係数である。
2…空気圧縮機本体
3…空気圧縮機吐出部圧力センサ
31…空気槽圧力センサ
4…制御装置
5…可変速装置
6…電動機
61…電流センサ
7…空気槽
8…配管系統
9、10、11…末端
12、13、14…末端圧力センサ
15、215、315、415…流量差分演算装置
100…圧力計測値取得・蓄積部
101…空気槽容量、配管系統入力部
102…配管モデル記憶部
103…予測モデル構築部
104…末端流量予測部
105…圧縮機流量予測部
106、406…流量偏差量演算部
200…補正用計測値取得・蓄積部
203…予測モデル補正部
204…末端圧力計測値異常判定部
S1…計測値取得過程
S2…配管モデル生成過程
S3…予測モデル生成過程
S4…末端流量、圧縮機流量計算過程
S5…流量偏差量計算過程
S23…補正用計測値取得過程
S24…補正モデル生成過程
S223…計測値異常判定過程
A…空気
D1…センサ計測値
D2…配管モデル
D3…予測モデル
D4…全末端での使用空気量計算値
D5…空気圧縮機の吐出流量計算値
D21…補正用センサ計測値
D23…補正モデル
D31…異常なしのセンサ計測値
i…時間
K…係数
P0…末端要求圧力
ΔQ…偏差量
ΔQc…流量修正値
Claims (4)
- 空気圧縮機から吐出された圧縮空気を、空気槽および配管系統を介して圧縮空気を消費する複数の末端に供給する空圧システムであって、
前記空気圧縮機の吐出圧力を計測する圧縮機圧力センサと、
それぞれの前記複数の末端への供給圧力を計測する末端圧力センサと、
前記空気槽の圧力を検出する空気槽圧力センサと、
前記空気槽の容量、前記配管系統の情報、および前記吐出圧力と前記供給圧力に基づき偏差量情報を演算する流量差分演算装置と、
前記偏差量情報に基づき前記空気圧縮機の動作を制御する制御装置と、を備え、
前記流量差分演算装置は、
前記空気槽の容量、前記配管系統の情報、および前記吐出圧力と前記供給圧力から、前記複数の末端の使用空気量と、前記空気圧縮機の吐出流量とを演算し、
前記使用空気量と前記吐出流量から前記偏差量情報を演算し、
前記空気槽圧力センサの計測値を補正用センサ計測値とし、前記補正用センサ計測値に基づき前記使用空気量と前記吐出流量を補正する空圧システム。 - 空気圧縮機から吐出された圧縮空気を、空気槽および配管系統を介して圧縮空気を消費する複数の末端に供給する空圧システムであって、
前記空気圧縮機の吐出圧力を計測する圧縮機圧力センサと、
それぞれの前記複数の末端への供給圧力を計測する末端圧力センサと、
前記空気圧縮機を動作させる電動機に供給される電流を検出する電流センサと、
前記空気槽の容量、前記配管系統の情報、および前記吐出圧力と前記供給圧力に基づき偏差量情報を演算する流量差分演算装置と、
前記偏差量情報に基づき前記空気圧縮機の動作を制御する制御装置と、を備え、
前記流量差分演算装置は、
前記空気槽の容量、前記配管系統の情報、および前記吐出圧力と前記供給圧力から、前記複数の末端の使用空気量と、前記空気圧縮機の吐出流量とを演算し、
前記使用空気量と前記吐出流量から前記偏差量情報を演算し、
前記電流センサの電流計測値から前記吐出流量を算出し、
前記空気圧縮機の吐出流量を補正用センサ計測値とし、前記補正用センサ計測値に基づき前記使用空気量と前記吐出流量を補正する空圧システム。 - 前記流量差分演算装置は、前記末端圧力センサに異常があると判断した場合に、異常のない前記末端圧力センサの計測値と前記補正用センサ計測値とに基づき前記使用空気量と前記吐出流量を演算する請求項1または2に記載の空圧システム。
- 前記空気圧縮機が供給する圧縮空気量が前記複数の末端で使用される圧縮空気量を下回っていることを前記偏差量情報が示す場合に、
前記制御装置は、前記空気圧縮機が吐出する圧縮空気量を増大させる請求項1から請求項3のいずれかに記載の空圧システム。
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JP2018005284A JP6986979B2 (ja) | 2018-01-17 | 2018-01-17 | 空圧システムのリアルタイム制御装置および方法 |
PCT/JP2019/001157 WO2019142840A1 (ja) | 2018-01-17 | 2019-01-16 | 空圧システム |
US16/959,910 US11536263B2 (en) | 2018-01-17 | 2019-01-16 | Air pressure system |
CN201980006340.6A CN111448391B (zh) | 2018-01-17 | 2019-01-16 | 空气压缩系统 |
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GB2581503A (en) * | 2019-02-20 | 2020-08-26 | Edwards Ltd | Vacuum pumping |
CN114003065B (zh) * | 2021-10-15 | 2024-03-19 | 湖北三江航天红林探控有限公司 | 一种基于气压预测的双压力变送器冗余设计方法 |
CN117927495A (zh) * | 2024-02-02 | 2024-04-26 | 德州隆达空调设备集团有限公司 | 高静压数字节能风机的风量调节方法、装置、设备及介质 |
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JP2003021071A (ja) * | 2001-07-10 | 2003-01-24 | Nagano Keiki Co Ltd | ガス昇圧装置 |
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JP4786443B2 (ja) * | 2006-07-11 | 2011-10-05 | 株式会社日立産機システム | 圧縮空気製造設備 |
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CN102230466B (zh) * | 2011-04-20 | 2013-12-18 | 长春工业大学 | 一种空压机负荷优化控制系统及方法 |
JP6704247B2 (ja) | 2015-12-25 | 2020-06-03 | 株式会社日立産機システム | 空圧システム運転制御装置および制御方法 |
CN107023474B (zh) * | 2017-04-24 | 2019-06-18 | 广东艾高装备科技有限公司 | 一种空压机自动测试系统及测试方法 |
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