EP0223207A2 - Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage - Google Patents

Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage Download PDF

Info

Publication number
EP0223207A2
EP0223207A2 EP86115791A EP86115791A EP0223207A2 EP 0223207 A2 EP0223207 A2 EP 0223207A2 EP 86115791 A EP86115791 A EP 86115791A EP 86115791 A EP86115791 A EP 86115791A EP 0223207 A2 EP0223207 A2 EP 0223207A2
Authority
EP
European Patent Office
Prior art keywords
controller
blow
line
signal
correction signal
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
Application number
EP86115791A
Other languages
German (de)
English (en)
Other versions
EP0223207A3 (en
EP0223207B1 (fr
Inventor
Wilfried Dipl.-Ing. Blotenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAN Gutehoffnungshutte GmbH
Original Assignee
MAN Gutehoffnungshutte GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAN Gutehoffnungshutte GmbH filed Critical MAN Gutehoffnungshutte GmbH
Publication of EP0223207A2 publication Critical patent/EP0223207A2/fr
Publication of EP0223207A3 publication Critical patent/EP0223207A3/de
Application granted granted Critical
Publication of EP0223207B1 publication Critical patent/EP0223207B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids

Definitions

  • the invention relates to a device for regulating a turbo compressor, of the type specified in the preamble of claim 1.
  • a device of this type is known from US Pat. No. 4,142,838.
  • a surge limit line can be defined in the characteristic map of the compressor, which separates the stable from the unstable range.
  • a blow-off line is defined in the map, which runs at a safety distance from the surge limit line.
  • the current operating point of the compressor in the map is recorded, and when the operating point approaches the blow-off line, the regulator opens a blow-off or blow-off valve connected to the compressor outlet more or less in order to lower the final pressure before the operating point approaches the unstable area.
  • this regulation does not respond quickly enough to changes in the working point so that the working point can cross the blow-off line and possibly reach the surge limit line.
  • a safety line which may be identical to the blow-off line or may lie between this and the surge line, an additional signal is generated which controls a rapid, complete or partial opening of the blow-off valve.
  • the invention has for its object to develop a device of the type mentioned so that a delay-free action of the correction signal on the relief valve is achieved with simple means, without special measures for subsequent compensation of the correction signal are necessary, and without the operating point unnecessarily long beyond the blow-off line.
  • the correction signal By applying the correction signal directly to the integral part of the controller, the correction signal is passed on without delay to the controller output in order to cause the relief valve to open quickly.
  • the controller output signal immediately assumes at least approximately the value that it must have after the fault has ended, i.e. there is no longer a compensation time during which the controller has to readjust to the new value via the compressor system working beyond the blow-off line.
  • the correction signal is fed to the integral part as a control signal and the integration time constant (readjustment time) is changed as a function of the position of the operating point. This ensures that the controller responds quickly in critical operating situations, since the reset time of the controller is reduced if the safety line is exceeded.
  • the output signal Y of an integral proportional controller is a function of the integration time constant (reset time) T N , the proportional gain KP and the control difference X d :
  • control difference X d ie the distance between the working point and the blow-off line, is relatively small in the vicinity of the blow-off line, and consequently the change in the controller output signal Y takes place only slowly. However, this contradicts the requirement that the controller should react quickly when the blow-off line is exceeded.
  • a correction variable is therefore switched to the integral part of the controller when the blow-off line is exceeded, so that the output of the controller changes quickly and the downstream blow-off valve is triggered accordingly quickly.
  • the pressure difference in front of and behind a throttle orifice is measured by sensors 3, 5 and an actual value for the suction-side throughput V is formed therefrom in a transmitter 7.
  • a sensor 9 with transmitter 11 detects the final pressure P of the compressor.
  • the computer 13 determines the distance between P and V defined operating point from the blow-off line A and generates a desired value signal according to this distance, which is compared in a difference element 17 with the actual value signal to form an input signal for the controller 10.
  • This comprises at least a proportional part 10a and an integral part 10b and can also have a differential part 10c.
  • the output signal of the controller 10 controls a relief valve 19 branching off from the compressor output.
  • the computer 13 additionally generates a signal which in a signal shaping stage 21 generates a correction signal, e.g. in the form of one or more pulses which are input as an input signal into the integral part 10b of the controller.
  • a correction signal e.g. in the form of one or more pulses which are input as an input signal into the integral part 10b of the controller.
  • the signal shaping part 21 can be designed such that it generates the correction signal as long as the working point is to the left of the safety or blow-off line. However, it is also possible for the signal shaping stage 21 to generate a correction pulse of a defined, adjustable duration. Several pulses can also be generated in succession that cause a change in the integrator content in several stages of adjustable height in adjustable time intervals.
  • the influence of the correction signal can thus be made dependent not only on whether the safety line is crossed, but also on how far and / or at what speed it is exceeded. This influence can in particular be non-linear and can also be limited to changes with only one sign.
  • the pulse height, the pulse width, the pulse spacing or the pulse-pause ratio and / or the time constant of the correction signal can be varied depending on the position of the operating point in the characteristic diagram.
  • the correction signal is not additionally applied to the integral part of the controller, but rather serves as a control signal for changing the reset time T N.
  • the reset time T N is always adjusted according to the requirements so that there is always an optimal adjustment of the controller output signal Y.
  • the adjustment time T N is adjusted by means of a control unit 25 and can be carried out in various ways.
  • a shorter reset time is reached when a limit line (safety line) is reached near the blow-off line. If the operating point crosses this line in the opposite direction (towards the safe map area), the system switches back to the original reset time, whereby it may be necessary to provide a hysteresis for switching back.
  • a limit line safety line
  • the reset time can also be changed in another way, for example in several stages or continuously.
  • f (X d ) should be zero, ie the reset time is constant in this range and has the value T 1.
  • the readjustment time can either decrease with increasing control difference in order to increase the effect of the surge limit control with increasing danger for the compressor, or decrease abruptly when a limit is exceeded and increase again with increasing control difference in order to not impermissibly the controller with increasing control difference to design quickly.
  • a combination of both methods can also be used, ie with an increasing control difference the reset time initially decreases and increases again above a limit.
  • PI controller proportional and integral controller
  • FIG. 2 shows a proportional and integral controller (PI controller) as a parallel connection of a proportional controller 10a and an integral controller 10b.
  • PI controller can be represented in this way, even if the controller is implemented in a different form, for example as a software algorithm in a digital controller.
  • a limiter can also be provided in the control unit 25, which has the effect that the reset time can neither be greater than that of the stably set controller, nor can it be so short that the relief valve can no longer follow due to its finite actuating speed.
  • the methods can also be used with other control algorithms with time-dependent changes.
  • control device 3 to 7 show further exemplary embodiments of the control device according to the invention.
  • the entire control loop is not shown here, but only the section between the formation of the control difference X d (from the setpoint W and the actual value X) and the controller output y.
  • the limit value stage 27 is set to the distance between the bleed line and the safety line. If the limit value is reached, the relay 29 switches to the other time constant T N2 .
  • the time constant is adapted as an expression T N / X d to the input signal of the controller.
  • the limiter 31 ensures that certain limits are neither exceeded nor undershot.
  • a switch is made from T N1 to T N2 when the switching threshold is reached. If the control difference X d continues to increase, the effective readjustment time T N increases again depending on the output of the function generator. Alternatively, the reset time T N2 can also be omitted; the function generator is then set so that T N first decreases and then increases again.
  • FIG. 6 shows an arrangement in which the limit value stage 27 drives a pulse element 35 when a limit value is exceeded.
  • the pulse element 35 then outputs a larger or more smaller pulses or a ramp to the integrator 37.
  • the relay 41 can also be followed by a time limiter 39, which limits the influence of c on a fixed time period or dependent on another parameter.
  • the position of the working point is determined by the detection of the final pressure and the throughput in the described embodiments
  • other variables such as the pressure ratio between the final and suction pressure can also be used for the detection of the working point or the definition of the characteristic map in a manner known per se.
  • the speed, the guide vane position, the power, the input signal of the controller 10 or the output signal of a process controller are used.
  • the map can be determined by other parameters, such as the adiabatic delivery head (instead of the final pressure) and the intake volume flow (instead of the suction-side pressure difference) are determined.
  • the surge line has a clear course in the map, so that the blow-off and safety line can also be clearly defined in relation to the surge line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
EP86115791A 1985-11-13 1986-11-13 Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage Expired - Lifetime EP0223207B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853540284 DE3540284A1 (de) 1985-11-13 1985-11-13 Einrichtung zum regeln eines turbokompressors zur verhinderung des pumpens
DE3540284 1985-11-13

Publications (3)

Publication Number Publication Date
EP0223207A2 true EP0223207A2 (fr) 1987-05-27
EP0223207A3 EP0223207A3 (en) 1988-01-13
EP0223207B1 EP0223207B1 (fr) 1990-10-03

Family

ID=6285903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115791A Expired - Lifetime EP0223207B1 (fr) 1985-11-13 1986-11-13 Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage

Country Status (4)

Country Link
US (1) US4968215A (fr)
EP (1) EP0223207B1 (fr)
JP (1) JPS62247200A (fr)
DE (2) DE3540284A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0328729A2 (fr) * 1988-02-18 1989-08-23 MAN Gutehoffnungshütte Aktiengesellschaft Procédé et dispositif pour contrôler les compresseurs centrifuges
EP0336092A2 (fr) * 1988-04-02 1989-10-11 MAN Gutehoffnungshütte Aktiengesellschaft Procédé de protection d'un compresseur centrifuge contre le pompage par une valve d'échappement et le dispositif pour réaliser ce procédé
EP0336095A2 (fr) * 1988-04-02 1989-10-11 MAN Gutehoffnungshütte Aktiengesellschaft Procédé de commande pour éviter le pompage d'un compresseur centrifuge par l'échappement suivant les besoins

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809881A1 (de) * 1988-03-24 1989-10-12 Gutehoffnungshuette Man Regelverfahren zur vermeidung des pumpens eines turbokompressors
US5306116A (en) * 1992-04-10 1994-04-26 Ingersoll-Rand Company Surge control and recovery for a centrifugal compressor
DE19528253C2 (de) * 1995-08-01 1997-10-16 Gutehoffnungshuette Man Verfahren und Vorrichtung zur Vermeidung von Reglerinstabilitäten bei Pumpgrenzregelungen beim Betrieb von Strömungsmaschinen mit Reglern hoher Prportionalverstärkung
DE19541192C2 (de) * 1995-11-04 1999-02-04 Ghh Borsig Turbomaschinen Gmbh Verfahren zum Schutz eines Turbokompressors vor Betrieb im instabilen Arbeitsbereich mittels einer Abblaseeinrichtung
US6059522A (en) * 1996-04-17 2000-05-09 United Technologies Corporation Compressor stall diagnostics and avoidance
DE19812159A1 (de) * 1998-03-20 1999-09-23 Ruhrgas Ag Verfahren zum Regeln des Volumenstroms von Gas, insbesondere Erdgas, durch einen Turboverdichter
DE19828368C2 (de) * 1998-06-26 2001-10-18 Man Turbomasch Ag Ghh Borsig Verfahren und Vorrichtung zum Betreiben von zwei- oder mehrstufigen Verdichtern
DE10001365A1 (de) * 2000-01-14 2001-07-19 Man Turbomasch Ag Ghh Borsig Verfahren und Einrichtung zum Regeln eines Turbokompressors zur Verhinderung des Pumpens
JP5871157B2 (ja) * 2011-10-03 2016-03-01 株式会社Ihi 遠心圧縮設備のサージング防止方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142838A (en) * 1977-12-01 1979-03-06 Compressor Controls Corporation Method and apparatus for preventing surge in a dynamic compressor
EP0056341A1 (fr) * 1981-01-14 1982-07-21 AVIATION ELECTRIC Limited Arrangement pour remodifier la limite d'accélération pour un dispositif de contrôle de carburant d'une turbine à gaz

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107887B (de) * 1957-04-16 1961-05-31 Power Jets Res & Dev Ltd Regler zur Pumpverhuetung bei Stroemungsverdichtern
US3276674A (en) * 1963-03-06 1966-10-04 Shell Oil Co Method for preventing surging of compressors
US4046490A (en) * 1975-12-01 1977-09-06 Compressor Controls Corporation Method and apparatus for antisurge protection of a dynamic compressor
US4139328A (en) * 1977-05-25 1979-02-13 Gutehoffnungshitte Sterkrade Ag Method of operating large turbo compressors
US4164034A (en) * 1977-09-14 1979-08-07 Sundstrand Corporation Compressor surge control with pressure rate of change control
DE2852717C2 (de) * 1978-12-06 1982-02-11 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Verfahren zur Enddruckbegrenzung für Turbo-Verdichter mittels Abblaseregelung
DE3105376C2 (de) * 1981-02-14 1984-08-23 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Verfahren zum Betreiben von Turboverdichtern
US4428194A (en) * 1981-02-19 1984-01-31 The Garrett Corporation Compressor bleed air control apparatus and methods
US4627788A (en) * 1984-08-20 1986-12-09 The Babcock & Wilcox Company Adaptive gain compressor surge control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142838A (en) * 1977-12-01 1979-03-06 Compressor Controls Corporation Method and apparatus for preventing surge in a dynamic compressor
EP0056341A1 (fr) * 1981-01-14 1982-07-21 AVIATION ELECTRIC Limited Arrangement pour remodifier la limite d'accélération pour un dispositif de contrôle de carburant d'une turbine à gaz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CONTROL ENGINEERING, Band 24, Nr. 10, Oktober 1977, Seiten 63-65, New York, US; W. FEHERVARI: "Asymmetric algorithm tightens compressor surge control" *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0328729A2 (fr) * 1988-02-18 1989-08-23 MAN Gutehoffnungshütte Aktiengesellschaft Procédé et dispositif pour contrôler les compresseurs centrifuges
EP0328729A3 (en) * 1988-02-18 1990-07-18 Man Gutehoffnungshutte Aktiengesellschaft Method and system to control centrifugal compressors
EP0336092A2 (fr) * 1988-04-02 1989-10-11 MAN Gutehoffnungshütte Aktiengesellschaft Procédé de protection d'un compresseur centrifuge contre le pompage par une valve d'échappement et le dispositif pour réaliser ce procédé
EP0336095A2 (fr) * 1988-04-02 1989-10-11 MAN Gutehoffnungshütte Aktiengesellschaft Procédé de commande pour éviter le pompage d'un compresseur centrifuge par l'échappement suivant les besoins
EP0336092A3 (en) * 1988-04-02 1990-12-05 Man Gutehoffnungshutte Aktiengesellschaft Method to protect a centrifugal compressor against surge by venting via a vent valve and system to realize the method
EP0336095A3 (en) * 1988-04-02 1990-12-05 Man Gutehoffnungshutte Aktiengesellschaft Control method to prevent surge of a centrifugal compressor by means of venting by need

Also Published As

Publication number Publication date
DE3674723D1 (de) 1990-11-08
EP0223207A3 (en) 1988-01-13
EP0223207B1 (fr) 1990-10-03
JPS62247200A (ja) 1987-10-28
DE3540284A1 (de) 1987-05-14
US4968215A (en) 1990-11-06

Similar Documents

Publication Publication Date Title
DE69728254T2 (de) Regelsystem für dynamische kompressoren zur verhinderung des wiederauftretens des pumpens
EP0223207B1 (fr) Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage
EP0336095B1 (fr) Procédé de commande pour éviter le pompage d'un compresseur centrifuge par l'échappement suivant les besoins
EP1069314A1 (fr) Commande d'une unité-compresseur
EP0328729A2 (fr) Procédé et dispositif pour contrôler les compresseurs centrifuges
EP0223208B1 (fr) Procédé et dispositif de réglage de turbocompresseurs
EP0254029A2 (fr) Procédé de filtrage d'un signal brouillé
EP0098909A2 (fr) Régulateur de ralenti notamment pour les véhicules
EP1987573B1 (fr) Procédé pour limiter la force excédentaire d'un élément de fermeture actionné par une force extérieure
EP0222382B1 (fr) Procédé de réglage de turbocompresseurs
EP0334034B1 (fr) Procédé de commande pour éviter le pompage d'un compresseur centrifuge
CH621855A5 (en) Method for regulating turbo-compressors
EP1116885B1 (fr) Procédé et appareil de contrôle d'un turbo-compresseur pour éviter le pompage
DE19739827B4 (de) Verfahren und Vorrichtung zur Steuerung einer Betriebsgröße eines Kraftfahrzeugs
DE2816613A1 (de) Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
EP0757180B1 (fr) Procédé et dispositif d'opération des turbomachines avec régulateurs à gain proportionnel élevé
EP0707718B1 (fr) Systeme de regulation
DE2739229C3 (de) Regeleinrichtung für einen Turboverdichter
DE2735246A1 (de) Regeleinrichtung fuer einen turboverdichter
DE10043783A1 (de) Verfahren und Vorrichtung zur Regelung des Vakuums in einer Kammer
DE1920193A1 (de) Druckregler
EP3916236B1 (fr) Procédé de fonctionnement d'un système de ventilation et système de ventilation doté d'un ventilateur radial courbé vers l'arrière
DE1802255B1 (de) Geschwindigkeitsregler fuer Flugzeuge
EP0151805A2 (fr) Dispositif de régulation électrique de la vitesse de ralenti d'un moteur à combustion
WO2021175945A1 (fr) Procédé de régulation du débit et/ou de la pression dans une installation hydraulique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19880527

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MAN GUTEHOFFNUNGSHUETTE AKTIENGESELLSCHAFT

17Q First examination report despatched

Effective date: 19890413

ITF It: translation for a ep patent filed

Owner name: UFFICIO TECNICO ING. A. MANNUCCI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3674723

Country of ref document: DE

Date of ref document: 19901108

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: MAN GUTEHOFFNUNGSHUETTE AKTIENGESELLSCHAFT -DANN A

NLS Nl: assignments of ep-patents

Owner name: GHH BORSIG TURBOMASCHINEN GMBH

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CJ

Ref country code: FR

Ref legal event code: CA

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20051110

Year of fee payment: 20

Ref country code: FR

Payment date: 20051110

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20051114

Year of fee payment: 20

Ref country code: CH

Payment date: 20051114

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20051121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20051122

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20061112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20061113

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20061113