BR0309634A - Sistema posicionador, métodos para determinar uma primeira vazão em massa de porta de saìda de fluido de controle em uma malha de controle e para detectar falhas em uma malha de controle, e, malha de controle para posicionar um elemento de estrangulamento de uma válvula de controle operada pneumaticamente - Google Patents
Sistema posicionador, métodos para determinar uma primeira vazão em massa de porta de saìda de fluido de controle em uma malha de controle e para detectar falhas em uma malha de controle, e, malha de controle para posicionar um elemento de estrangulamento de uma válvula de controle operada pneumaticamenteInfo
- Publication number
- BR0309634A BR0309634A BR0309634-3A BR0309634A BR0309634A BR 0309634 A BR0309634 A BR 0309634A BR 0309634 A BR0309634 A BR 0309634A BR 0309634 A BR0309634 A BR 0309634A
- Authority
- BR
- Brazil
- Prior art keywords
- control
- control loop
- positioning
- fault
- determining
- Prior art date
Links
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
- G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
- G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
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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
- F15B19/005—Fault detection or monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0275—Fault isolation and identification, e.g. classify fault; estimate cause or root of failure
- G05B23/0278—Qualitative, e.g. if-then rules; Fuzzy logic; Lookup tables; Symptomatic search; FMEA
-
- 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
- G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
- G05D16/2097—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power using pistons within the main valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- Servomotors (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Pressure (AREA)
- Flow Control (AREA)
Abstract
"SISTEMA POSICIONADOR, MéTODOS PARA DETERMINAR UMA PRIMEIRA VAZãO EM MASSA DE PORTA DE SAìDA DE FLUIDO DE CONTROLE EM UMA MALHA DE CONTROLE E PARA DETECTAR FALHAS EM UMA MALHA DE CONTROLE, E, MALHA DE CONTROLE PARA POSICIONAR UM ELEMENTO DE ESTRANGULAMENTO DE UMA VáLVULA DE CONTROLE OPERADA PNEUMATICAMENTE". Método e aparelho para realizar diagnóstico em uma malha de controle pneumático para uma válvula de controle. Sensores de pressão e de deslocamento (68, 84) fornecidos normalmente com um posicionador (14) são utilizados para detectar parâmetros de operação da malha de controle. Um processador (18, 20) é programado para receber realimentação a partir dos sensores e gerar sinais de falha de acordo com uma sub-rotina lógica. A sub-rotina lógica pode incluir calcular escoamento em massa de fluido de controle através de portas de saída da válvula de carretel (26) e comparar com outros parâmetros de operação do fluido de controle para detectar vazamentos e bloqueios na malha de controle. Uma vez que uma falha é detectada, a localização da causa raiz da falha pode ser identificada caracterizando parâmetros de operação da malha de controle no momento da falha.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/139,008 US6678584B2 (en) | 2002-05-03 | 2002-05-03 | Method and apparatus for performing diagnostics in a control loop of a control valve |
PCT/US2003/003695 WO2003093681A1 (en) | 2002-05-03 | 2003-02-07 | Method and apparatus for performing diagnostics in a control loop of a control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0309634A true BR0309634A (pt) | 2005-03-15 |
Family
ID=29269482
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0309634A BRPI0309634B1 (pt) | 2002-05-03 | 2003-02-07 | sistema posicionador para controlar um atuador pneumático acoplado a um elemento de estrangulamento e malha de controle para posicionar um elemento de estrangulamento de uma válvula de controle operada pneumaticamente |
BR0309634-3A BR0309634A (pt) | 2002-05-03 | 2003-02-07 | Sistema posicionador, métodos para determinar uma primeira vazão em massa de porta de saìda de fluido de controle em uma malha de controle e para detectar falhas em uma malha de controle, e, malha de controle para posicionar um elemento de estrangulamento de uma válvula de controle operada pneumaticamente |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0309634A BRPI0309634B1 (pt) | 2002-05-03 | 2003-02-07 | sistema posicionador para controlar um atuador pneumático acoplado a um elemento de estrangulamento e malha de controle para posicionar um elemento de estrangulamento de uma válvula de controle operada pneumaticamente |
Country Status (10)
Country | Link |
---|---|
US (2) | US6678584B2 (pt) |
EP (2) | EP2006547B1 (pt) |
JP (3) | JP4575770B2 (pt) |
CN (5) | CN101368643B (pt) |
AU (1) | AU2003215092A1 (pt) |
BR (2) | BRPI0309634B1 (pt) |
CA (3) | CA2692577C (pt) |
DE (1) | DE60331908D1 (pt) |
MX (1) | MXPA04010519A (pt) |
WO (1) | WO2003093681A1 (pt) |
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