EP0328729A2 - Procédé et dispositif pour contrôler les compresseurs centrifuges - Google Patents

Procédé et dispositif pour contrôler les compresseurs centrifuges Download PDF

Info

Publication number
EP0328729A2
EP0328729A2 EP88114221A EP88114221A EP0328729A2 EP 0328729 A2 EP0328729 A2 EP 0328729A2 EP 88114221 A EP88114221 A EP 88114221A EP 88114221 A EP88114221 A EP 88114221A EP 0328729 A2 EP0328729 A2 EP 0328729A2
Authority
EP
European Patent Office
Prior art keywords
variable
controller
blow
compressor
actual value
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
EP88114221A
Other languages
German (de)
English (en)
Other versions
EP0328729A3 (en
EP0328729B1 (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 Turbo AG
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 EP0328729A2 publication Critical patent/EP0328729A2/fr
Publication of EP0328729A3 publication Critical patent/EP0328729A3/de
Application granted granted Critical
Publication of EP0328729B1 publication Critical patent/EP0328729B1/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 method for regulating turbocompressors for preventing pumping, of the type specified in the preamble of claim 1, and a device for carrying out the method.
  • pumps are the intermittent or periodic backflow of the medium from the pressure to the suction side. This state occurs, for example, when the final pressure or final pressure / suction pressure ratio and / or the throughput are too low.
  • a surge limit line can therefore be clearly defined in the map, which divides the map into the stable and unstable area.
  • the surge line is usually curved, ie it has different slopes in different areas of the map. In the frequently used map display with throughput and pressure as coordinates, for example, the surge line is flatter with increasing pressure. The same applies to other possible characteristic diagram representations with guide vane position, speed, head of the compressor or the like.
  • a blow-off line is defined at a safety distance parallel to the surge line, and when the current operating point approaches the blow-off line, a blow-off or blow-off valve is opened more or less so that the actual value of a controlled variable, in particular the throughput , does not exceed a target value determined on the basis of the blow-off line and the command variable, in particular the final pressure.
  • a controlled variable in particular the throughput
  • the throughput serves as a reference variable for forming the setpoint and the final pressure is the controlled variable to be regulated to the setpoint.
  • the result of the curved course of the blow-off line is that a predetermined change in the command variable at different points on the blow-off line results in changes in the desired value for the controlled variable of different sizes. This affects the strengthening of the control loop to different degrees.
  • Pump limit controllers are safety controllers and are usually activated so that they work close to the stability limit in order to ensure the best possible compressor protection.
  • the position of the stability limit is very much influenced by the overall gain of the control loop. A high overall gain is most likely to lead to instability.
  • a constant overall gain can only be achieved to a limited extent with this control method, since the non-linear course of the compressor characteristics also causes a change in the path gain and thus influences the overall gain.
  • the object of the invention is to create a method of the type mentioned at the beginning and a device for carrying it out, with which an optimal adaptation of the controller behavior to the different areas of the map and operating states of the compressor is possible.
  • the invention is based on the basic idea that the effects of changing according to the command variable Compensate the slope of the curved characteristic curve of the compressor to the overall gain of the control loop by a correspondingly opposite change in the gain factor of the controller, so that an overall gain independent of the characteristic curve results in the entire working range.
  • This basic principle can also be approximately implemented by switching between two or more different values of the gain factor of the controller.
  • the pressure in front of and behind a throttle orifice is measured in the suction port 1 of a compressor by means of a sensor 3.5, from which a transmitter 7 forms the actual value for the compressor throughput V on the suction side.
  • a sensor 9 detects the actual value of the final pressure P, which is entered into a computer 13 via a transmitter 11.
  • the computer 13 has a memory in which the course of the blow-off line A is stored in the compressor map given by P and V. From the actual value of P and the blow-off line, the computer 13 determines a target value for the throughput V.
  • the actual and target values are compared in a differential element 15 and the difference is fed as an input signal to a controller 17 which has a proportional-integral and / or differential behavior can and the output signal provides a manipulated variable for a blow-off valve 19 branching off from the compressor outlet or a blow-off valve returning to the suction port.
  • the blow-off line A and the compressor characteristic curve K are each curved.
  • a specific change ⁇ P in the final pressure serving as a guide variable corresponds to changes of different magnitudes ⁇ X1 and ⁇ X2 of the actual value and ⁇ W1 and ⁇ W2 of the nominal value for the throughput.
  • the computer 13 forms part of the control loop with the memory, and these differences act as changes in the overall gain of the control loop if the controller 17 has a constant gain factor.
  • the steep lower course of the curves corresponds to a small gain and the flat upper course to a high gain. If, on the other hand, what is also known is reversed, the role of the command variable and the controlled variable and the throughput V is used as the command variable for determining a target value of the final pressure P, the conditions are reversed and the gain is large in the steep part and small in the flat part .
  • the overall gain of the control loop is the sum of the the gain resulting from the slope of the blow-off line and the gain factor of the controller 17 plus the so-called system gain, ie the gain factors predetermined by the controlled system, in particular the compressor and the relief valve.
  • system gain ie the gain factors predetermined by the controlled system, in particular the compressor and the relief valve.
  • the route gain factor which depends on the map and the course of the blow-off line, is not linear.
  • K (P) f (P + g (Y L )) - K2 xg (Y L ) specify. If the blow-off line is denoted by A (P), a pressure-dependent compensation factor of a results when the pressure changes by 2 ⁇ P
  • the first term corresponds to the reciprocal slope of the blow-off line and the second Term of the reciprocal slope of the compressor characteristic.
  • the first term can be saved as h (P) in a function generator.
  • Fig. 3 shows a structure for realizing a control loop with constant overall gain. From the input variables P, ⁇ P and g (Y L ) in function block 101 the size for f (P + ⁇ p + g (Y L )), in function block 103 the size f (P- ⁇ p + g (Y L )) and in function block 105 the quantity h (P) is formed. The variables obtained in this way are then added or subtracted in addition block 107, and then the preset proportional gain kP in division block 109 is divided by this compensation variable, so that the constant total gain is present at the output of block 109. The total gain V R is then fed to the controller 17 in FIG. 1 as a control variable.
  • the method described above can also be carried out in such a way that the respective reciprocal values of the slopes can be stored in corresponding function generators instead of the secant formation, ie the difference formation.
  • the output signals of the function transmitters are then processed accordingly.
  • Fig. 4 schematically shows the structure for determining the discrete values; for this purpose the input signal P is fed to a comparator 201 which compares whether the input value is above or below a break point. The comparator controls a changeover switch 203, which forwards the corresponding discrete slope values to the subtraction element 207.
  • the subtraction element 207 is supplied by the function generator 205 with the quantity h (P), and the output signal serves in the division element 209 as a divisor for the proportional gain KP, so that a corresponding output signal V ′ R is obtained for the overall gain.
  • the function of block 205 can also be added to the comparator, so that 207 can also be omitted.
  • the changeover switch 203 can also be used for switching be designed between a number of discrete values. This then corresponds to an adaptation of the characteristic curve by several straight line sections.
  • variable h (p) could be formed in the function generator and the subtraction carried out so that the blocks 201, 203, 205 and 207 of FIG. 4 could be combined into a single block.
  • the formulas described above are calculated when the system is started up, and the function generator supplies a sequence of values previously stored in it for V ′ R as a function of P.
  • the current manipulated variable y (t) is not only dependent on the gain V ′ R and the instantaneous control difference x d (t), but also on the control difference x d and the manipulated variable y at the time (t - T s ), ie one by the sampling time T s of the controller earlier.
  • the control can be carried out, for example, according to the following control algorithm, where T N is the reset time of the controller:
  • This regulation in which previous values of the control difference and the manipulated variable are taken into account, prevents a sudden change in the manipulated variable.
  • the application of the method according to the invention is not only limited to the characteristic diagram representations used here, but can also be used for other representations, for example in Pressure ratio via intake volume flow, Speed over volume flow, Guide vane position via volume flow, or a combination of the above representations.

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)
EP88114221A 1988-02-18 1988-08-31 Procédé et dispositif pour contrôler les compresseurs centrifuges Expired - Lifetime EP0328729B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3805119 1988-02-18
DE3805119A DE3805119A1 (de) 1988-02-18 1988-02-18 Verfahren und einrichtung zum regeln von turbokompressoren

Publications (3)

Publication Number Publication Date
EP0328729A2 true EP0328729A2 (fr) 1989-08-23
EP0328729A3 EP0328729A3 (en) 1990-07-18
EP0328729B1 EP0328729B1 (fr) 1993-03-03

Family

ID=6347688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114221A Expired - Lifetime EP0328729B1 (fr) 1988-02-18 1988-08-31 Procédé et dispositif pour contrôler les compresseurs centrifuges

Country Status (3)

Country Link
US (1) US4944652A (fr)
EP (1) EP0328729B1 (fr)
DE (2) DE3805119A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1255836B (it) * 1991-10-01 1995-11-17 Procedimento per la sorveglianza del limite di pompaggio di turbocompressori a piu' stadi e refrigerazione intermedia
US5195875A (en) * 1991-12-05 1993-03-23 Dresser-Rand Company Antisurge control system for compressors
US5306116A (en) * 1992-04-10 1994-04-26 Ingersoll-Rand Company Surge control and recovery for a centrifugal compressor
US5357748A (en) * 1992-11-09 1994-10-25 The United States Of America As Represented By The Secretary Of The Air Force Compressor vane control for gas turbine engines
US5508943A (en) * 1994-04-07 1996-04-16 Compressor Controls Corporation Method and apparatus for measuring the distance of a turbocompressor's operating point to the surge limit interface
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
CN1136485C (zh) * 1996-01-02 2004-01-28 伍德沃德调控器公司 动态压缩机的防冲击控制系统
US20090025393A1 (en) * 2006-10-31 2009-01-29 Karl Edward Sheldon Auxiliary power unit assembly
US7707838B2 (en) * 2006-10-31 2010-05-04 General Electric Company Auxiliary power unit assembly
DE102009013432A1 (de) * 2009-03-18 2010-09-23 Schenck Rotec Gmbh Verfahren und Vorrichtung zum Messen physikalischer Eigenschaften an einer Turbolader-Rumpfgruppe
US10436208B2 (en) * 2011-06-27 2019-10-08 Energy Control Technologies, Inc. Surge estimator
US20130039781A1 (en) * 2011-08-08 2013-02-14 Victor Pascu Anticipation logic for a surge control valve utilized with load compressor
US8955310B2 (en) 2012-05-08 2015-02-17 GM Global Technology Operations LLC Adaptive regeneration of an exhaust aftertreatment device in response to a biodiesel fuel blend
KR101806920B1 (ko) * 2013-04-19 2018-01-10 한화파워시스템 주식회사 압축기 시스템 및 압축기 시스템의 제어방법
US9482147B2 (en) 2013-05-22 2016-11-01 GM Global Technology Operations LLC Method and apparatus to operate internal combustion engine employing an intake air compressor
GB2548584B (en) * 2016-03-22 2021-12-01 Robert Bodle Charles Controlling gas turbine engines
RU174395U1 (ru) * 2016-11-08 2017-10-11 Виктор Васильевич Попов Устройство управления механизацией компрессора газотурбинного двигателя

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222382A2 (fr) * 1985-11-12 1987-05-20 MAN Gutehoffnungshütte Aktiengesellschaft Procédé de réglage de turbocompresseurs
EP0223207A2 (fr) * 1985-11-13 1987-05-27 MAN Gutehoffnungshütte Aktiengesellschaft Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage
EP0223208A2 (fr) * 1985-11-13 1987-05-27 MAN Gutehoffnungshütte Aktiengesellschaft Procédé et dispositif de réglage de turbocompresseurs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623899B2 (de) * 1976-05-28 1979-11-29 Gutehoffnungshuette Sterkrade Ag, 4200 Oberhausen Verfahren zum Betreiben von Turboverdichtern in der Nähe der Pumpgrenze
US4139328A (en) * 1977-05-25 1979-02-13 Gutehoffnungshitte Sterkrade Ag Method of operating large turbo compressors
US4156578A (en) * 1977-08-02 1979-05-29 Agar Instrumentation Incorporated Control of centrifugal compressors
US4255089A (en) * 1979-03-22 1981-03-10 Dravo Corporation Method of controlling series fans driving a variable load
DE3544821A1 (de) * 1985-12-18 1987-06-19 Gutehoffnungshuette Man Verfahren zum regeln von turbokompressoren zur vermeidung des pumpens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222382A2 (fr) * 1985-11-12 1987-05-20 MAN Gutehoffnungshütte Aktiengesellschaft Procédé de réglage de turbocompresseurs
EP0223207A2 (fr) * 1985-11-13 1987-05-27 MAN Gutehoffnungshütte Aktiengesellschaft Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage
EP0223208A2 (fr) * 1985-11-13 1987-05-27 MAN Gutehoffnungshütte Aktiengesellschaft Procédé et dispositif de réglage de turbocompresseurs

Also Published As

Publication number Publication date
EP0328729A3 (en) 1990-07-18
US4944652A (en) 1990-07-31
EP0328729B1 (fr) 1993-03-03
DE3805119A1 (de) 1989-08-31
DE3878886D1 (de) 1993-04-08

Similar Documents

Publication Publication Date Title
EP0328729B1 (fr) Procédé et dispositif pour contrôler les compresseurs centrifuges
EP1134422B1 (fr) Procédé pour le contrôle de pompage d' un turbo-compresseur
DE3546336C2 (fr)
DE3023550C2 (fr)
DE2817629A1 (de) Hydraulische regeleinrichtung
DE10313503B4 (de) Verfahren und Vorrichtung zur Abgasrückführungssteuerung in Brennkraftmaschinen
DE3044515A1 (de) Verstelleinrichtung fuer hydraulikpumpe mit verstellbarer foerdermenge
EP0223208B1 (fr) Procédé et dispositif de réglage de turbocompresseurs
DE3644870A1 (de) Laufregelung fuer turboluftstrahltriebwerk
EP0058305A1 (fr) Commande de turbo-compresseurs pour éviter le pompage
EP0336095B1 (fr) Procédé de commande pour éviter le pompage d'un compresseur centrifuge par l'échappement suivant les besoins
EP0335105B1 (fr) Procédé pour éviter le pompage d'un compresseur centrifuge par le contrôle d'échappement
EP0223207B1 (fr) Procédé et dispositif de réglage d'un turbocompresseur pour empêcher le pompage
DE2900336C2 (de) Verfahren und Einrichtung zum Umsteuern von Düsengruppen- Ventilen einer Dampfturbine bei einem Betriebsartwechsel
EP0515639A1 (fr) Systeme hydraulique.
EP0334034B1 (fr) Procédé de commande pour éviter le pompage d'un compresseur centrifuge
EP3592979A1 (fr) Procédé pour réguler la vitesse d'une pompe centrifuge
EP1116885B1 (fr) Procédé et appareil de contrôle d'un turbo-compresseur pour éviter le pompage
DE102008043869A1 (de) Regelungssystem für eine Regelstrecke
DE3516768A1 (de) Schaltungsanordnung zur drehzahlregelung einer hydrostatischen maschine
DE3830805C2 (fr)
EP0222382A2 (fr) Procédé de réglage de turbocompresseurs
DE3001778A1 (de) Verfahren und einrichtung zur wegregelung eines positionsantriebes
DE10006977A1 (de) Regeleinrichtung für einen Hydrotransformator
DE4122631A1 (de) Verfahren zum geregelten betreiben von verdichtern

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: 19900823

17Q First examination report despatched

Effective date: 19910712

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: 3878886

Country of ref document: DE

Date of ref document: 19930408

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930607

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
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

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

Ref country code: GB

Payment date: 19990713

Year of fee payment: 12

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

Ref country code: NL

Payment date: 19990719

Year of fee payment: 12

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 NON-PAYMENT OF DUE FEES

Effective date: 20000831

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 NON-PAYMENT OF DUE FEES

Effective date: 20010301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000831

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20010301

REG Reference to a national code

Ref country code: FR

Ref legal event code: CJ

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA

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

Ref country code: FR

Payment date: 20050812

Year of fee payment: 18

Ref country code: DE

Payment date: 20050812

Year of fee payment: 18

Ref country code: CH

Payment date: 20050812

Year of fee payment: 18

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050831

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070430

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831