6 research outputs found
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠΉ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΈΠ½Π΅ΡΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΡΠ°ΡΡΠΊΠ° ΠΏΠ°ΡΠΎΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π°ΡΠ΅Π»Ρ Π½Π° ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅ΡΠΎΠ³ΠΎ ΠΏΠ°ΡΠ° Π·Π° ΠΊΠΎΡΠ»ΠΎΠΌ Π² ΡΠΈΡΠΎΠΊΠΎΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ Π½Π°Π³ΡΡΠ·ΠΎΠΊ
The paper is devoted to computational investigation of influence relative time constant of an object which changes in broad band on quality of steam temperature control behind a boiler with due account of value of regulating action in the system with PI- and PID- regulator. The simulation has been based on a single-loop automatic control system (ACS). It has been revealed that the less value of the relative time constant of an object leads to more integral control error in system with PID- regulator while operating external ACS perturbation. Decrease of numerical value of relative time constant of an object while operating external perturbation causes decrease of relative time concerning appearance of maximum dynamic control error from common relative control time.Π‘ΡΠ°ΡΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π° ΡΠΈΡΠ»Π΅Π½Π½ΠΎΠΌΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠΉ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΎΠ±ΡΠ΅ΠΊΡΠ°, ΠΈΠ·ΠΌΠ΅Π½ΡΡΡΠ΅ΠΉΡΡ Π² ΡΠΈΡΠΎΠΊΠΈΡ
ΠΏΡΠ΅Π΄Π΅Π»Π°Ρ
, Π½Π° ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅ΡΠΎΠ³ΠΎ ΠΏΠ°ΡΠ° Π·Π° ΠΊΠΎΡΠ»ΠΎΠΌ Ρ ΡΡΠ΅ΡΠΎΠΌ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΡΠ΅Π³ΡΠ»ΠΈΡΡΡΡΠ΅Π³ΠΎ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ Ρ ΠΠ- ΠΈ ΠΠΠ-ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠΎΠΌ. Π ΠΎΡΠ½ΠΎΠ²Ρ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π° ΠΎΠ΄Π½ΠΎΠΊΠΎΠ½ΡΡΡΠ½Π°Ρ ΡΠΈΡΡΠ΅ΠΌΠ° Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ (Π‘ΠΠ ). Π§Π΅ΠΌ ΠΌΠ΅Π½ΡΡΠ΅ Π²Π΅Π»ΠΈΡΠΈΠ½Π° ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠΉ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΎΠ±ΡΠ΅ΠΊΡΠ°, ΡΠ΅ΠΌ Π±ΠΎΠ»ΡΡΠ΅ ΠΏΡΠΈ ΠΎΡΡΠ°Π±ΠΎΡΠΊΠ΅ Π²Π½Π΅ΡΠ½Π΅Π³ΠΎ Π²ΠΎΠ·ΠΌΡΡΠ΅Π½ΠΈΡ Π‘ΠΠ Ρ ΠΠΠ-ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠΎΠΌ ΠΈΠ½ΡΠ΅Π³ΡΠ°Π»ΡΠ½Π°Ρ ΠΎΡΠΈΠ±ΠΊΠ° ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ. Π£ΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΈΡΠ»Π΅Π½Π½ΠΎΠ³ΠΎ Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠΉ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΎΠ±ΡΠ΅ΠΊΡΠ° ΠΏΡΠΈ ΠΎΡΡΠ°Π±ΠΎΡΠΊΠ΅ Π²Π½Π΅ΡΠ½Π΅Π³ΠΎ Π²ΠΎΠ·ΠΌΡΡΠ΅Π½ΠΈΡ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΡ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΏΠΎΡΠ²Π»Π΅Π½ΠΈΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠΉ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΡΠΈΠ±ΠΊΠΈ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΎΡ ΠΎΠ±ΡΠ΅Π³ΠΎ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ
ΠΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½Π°Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ Π½Π°ΡΡΡΠΎΠΉΠΊΠΈ ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠΎΠ² Π²ΠΏΡΡΡΠΊΠΎΠ²
The paper considers a problem pertaining to better regulation of the superheated vapour tem- perature. This improvement can be achieved while determining dynamic adjustment parameters of automatic regulation systems (ARS) due to reduction of error at approximation of experimental transient characteristics of leading and inertial areas of an object to be regulated by turning to open-closed regulation system and by using an Β«areasΒ» method.Π‘ΡΠ°ΡΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π° ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΠΊΠ°ΡΠ΅ΡΡΠ²Π° ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅ΡΠΎΠ³ΠΎ ΠΏΠ°ΡΠ°, ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ ΠΌΠΎΠΆΠ½ΠΎ Π΄ΠΎΡΡΠΈΡΡ ΠΏΡΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ Π½Π°ΡΡΡΠΎΠΉΠΊΠΈ Π‘ΠΠ Π·Π° ΡΡΠ΅Ρ ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΡ ΠΏΠΎΠ³ΡΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΏΡΠΈ Π°ΠΏΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Π½ΡΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΠΎΠΏΠ΅ΡΠ΅ΠΆΠ°ΡΡΠ΅Π³ΠΎ ΠΈ ΠΈΠ½Π΅ΡΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΡΠ°ΡΡΠΊΠ° ΠΎΠ±ΡΠ΅ΠΊΡΠ°Β ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΈ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Π΅ ΠΊ ΡΠ°Π·ΠΎΠΌΠΊΠ½ΡΡΠΎ-Π·Π°ΠΌΠΊΠ½ΡΡΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠ΅ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ, Π° ΡΠ°ΠΊΠΆΠ΅ Π·Π° ΡΡΠ΅Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΌΠ΅ΡΠΎΠ΄Π° Β«ΠΏΠ»ΠΎΡΠ°Π΄Π΅ΠΉΒ»
Influence of Superheated Steam Temperature Regulation Quality on Service Life of Boiler Steam Super-Heater Metal
The paper investigates influence of change in quality of superheated steam temperature regulations on service life of super-heater metal. Π dependence between metal service life and dispersion value for different steel grades has been determined in the paper. Numerical values pertaining to increase of super-heater metal service life in case of transferring from manual regulation to standard system of automatic regulation (SAR) have been determined and in case of transferring from standard SAR to improved SAR. The analysis of tabular data and plotted dependencies makes it possible to conclude that any change in conditions of convection super-heater metal work due to better quality of the regulation leads to essential increase of time period which is left till the completion of the service life of a super-heater heating surface
Complex Methodology for Parameter Optimization of Dynamic Injection Regulator Ad- justment
The paper considers a problem pertaining to better regulation of the superheated vapour tem- perature. This improvement can be achieved while determining dynamic adjustment parameters of automatic regulation systems (ARS) due to reduction of error at approximation of experimental transient characteristics of leading and inertial areas of an object to be regulated by turning to open-closed regulation system and by using an Β«areasΒ» method
Investigation of Relative Time Constant Influence of Inertial Part of Superheater on Quality of Steam Temperature Control Behind Boiler in Broad Band of Loading Variations
The paper is devoted to computational investigation of influence relative time constant of an object which changes in broad band on quality of steam temperature control behind a boiler with due account of value of regulating action in the system with PI- and PID- regulator. The simulation has been based on a single-loop automatic control system (ACS). It has been revealed that the less value of the relative time constant of an object leads to more integral control error in system with PID- regulator while operating external ACS perturbation. Decrease of numerical value of relative time constant of an object while operating external perturbation causes decrease of relative time concerning appearance of maximum dynamic control error from common relative control time