DE4110225A1 - Control method for inverter with induction machine - varying torque generating demand value with ripple on DC intermediate circuit voltage - Google Patents
Control method for inverter with induction machine - varying torque generating demand value with ripple on DC intermediate circuit voltageInfo
- Publication number
- DE4110225A1 DE4110225A1 DE4110225A DE4110225A DE4110225A1 DE 4110225 A1 DE4110225 A1 DE 4110225A1 DE 4110225 A DE4110225 A DE 4110225A DE 4110225 A DE4110225 A DE 4110225A DE 4110225 A1 DE4110225 A1 DE 4110225A1
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- torque
- msoll
- quotient
- setpoint component
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
- H02M1/0022—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being input voltage fluctuations
Abstract
Description
Die Erfindung bezieht sich auf ein Steuerverfahren und eine Steueranordnung für einen Wechselrichter gemäß dem Oberbegriff der Ansprüche 1 und 7 und kann vorzugsweise bei nach dem DSR-Verfahren gemäß EP-B1-01 79 356 betrie benen Wechselrichtern verwendet werden.The invention relates to a control method and a control arrangement for an inverter according to the Preamble of claims 1 and 7 and can preferably operated according to the DSR process according to EP-B1-01 79 356 other inverters.
Bei Spannungszwischenkreis-Wechselrichtern mit direkter oder indirekter Regelung (Steuerung) von Drehmoment und Fluß einer am Wechselrichter betriebenen Asynchronma schine ist das Konstant-Leistungs-Verhalten des An triebssystems (Drehmomentregelung bei konstanter Dreh zahl) umso ausgeprägter, je besser die Drehmomentrege lung ist:For DC link inverters with direct or indirect regulation (control) of torque and Flow of an asynchronous machine operated on the inverter Schine is the constant performance behavior of the An drive system (torque control with constant rotation number) the more pronounced the better the torque rain lung is:
P = ω · M = 3 · U · I · cos ϕP = ωM = 3UUIcos ϕ
(P=Wirkleistung, ω=Kreisfrequenz, M=Drehmoment, U=effektive Spannung, I=effektive Stromstärke, cos ϕ=Leistungsfaktor, ϕ=Phasenwinkel). (P = active power, ω = angular frequency, M = torque, U = effective voltage, I = effective current, cos ϕ = power factor, ϕ = phase angle).
Dieser Sachverhalt führt bei einem relativ "weichen" Gleichspannungszwischenkreis, d. h. einem Gleichspan nungszwischenkreis mit relativ geringer Kapazität des Zwischenkreiskondensators, zu Leistungspendelungen und zu einer welligen Zwischenkreisspannung, da dem Zwi schenkreis infolge der Pulsung des Wechselrichters kein konstanter Strom entnommen wird.This leads to a relatively "soft" DC link, d. H. a DC chip DC link with relatively low capacity of the DC link capacitor, for power fluctuations and to a wavy DC link voltage, because the Zwi circuit due to the pulsing of the inverter constant current is taken.
Bei einer kurzzeitigen Störung der Einspeisung, d. h. einer kurzzeitigen Verringerung der Zwischenkreisspan nung, die normalerweise kein Abschalten des Systems er fordern würde, führt ein Konstant-Leistungs-Verhalten des Antriebssystems über eine sinkende Zwischenkreis spannung zu einem höheren Eingangsstrom des Wechselrich ters und hierdurch zu einem verschärften Einbruch der Zwischenkreisspannung, der zu einem unerwünschten Ab schalten des Systems führen kann.In the event of a brief fault in the feed, i.e. H. a brief reduction in the DC link span voltage that normally does not shutdown the system would require a constant performance behavior of the drive system via a sinking DC link voltage to a higher input current of the inverter ters and thereby to a sharper slump in DC link voltage, which leads to an undesirable Ab switching of the system can lead.
Der Erfindung liegt die Aufgabe zugrunde, ein Steuerver fahren für einen Wechselrichter anzugeben, durch das ein Konstant-Leistungs-Verhalten eines Antriebssystems ver ringert wird. Ferner soll eine Steueranordnung hierzu angegeben werden.The invention has for its object a Steuerver drive for an inverter to indicate by the one Constant performance behavior of a drive system ver is wrestled. A control arrangement for this purpose is also intended can be specified.
Diese Aufgabe wird bezüglich des Steuerverfahrens in Verbindung mit den Merkmalen des Oberbegriffes erfin dungsgemäß durch die im Kennzeichen des Anspruchs 1 an gegebenen Merkmale gelöst.This task is related to the tax procedure in Connection with the features of the generic term invented appropriately by the in the characterizing part of claim 1 given characteristics solved.
Diese Aufgabe wird bezüglich der Steueranordnung in Ver bindung mit den Merkmalen des Oberbegriffes erfindungs gemäß durch im Kennzeichen des Anspruchs 7 angegebenen Merkmale gelöst. This task is related to the control arrangement in Ver binding with the features of the generic term fiction according to indicated in the characterizing part of claim 7 Features solved.
Die mit der Erfindung erzielbaren Vorteile liegen insbe sondere darin, daß durch die Aufschaltung der Spannungs welligkeit des Zwischenkreises auf die drehmomentbilden de Sollwertkomponente das Konstant-Leistungs-Verhalten des Antriebssystems gebrochen wird, d. h. der Zwischen kreis wird bedämpft und die Eingangsadmittanz (Verhält nis von Eingangsstrom zu Eingangsspannung des Wechsel richters) des Wechselrichters wird positiv beeinflußt. Dabei kann eine lineare oder eine quadratische Aufschal tung auf die drehmomentbildende Sollwertkomponente er folgen. Eine lineare Aufschaltung erzeugt ein Konstant Strom-Verhalten des Antriebssystems und eine quadrati sche Aufschaltung bewirkt ein ohmsches Verhalten des Antriebssystems.The advantages that can be achieved with the invention are in particular special in that by applying the voltage ripple of the DC link on the torque de setpoint component the constant power behavior the drive system is broken, d. H. the intermediate circle is damped and the input admittance (ratio nis from input current to input voltage of alternating rectters) of the inverter is positively influenced. You can use a linear or a square form tion on the torque-generating setpoint component consequences. A linear feed-in creates a constant Current behavior of the drive system and a quadrati cal connection causes an ohmic behavior of the Drive system.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are in the Subclaims marked.
Die Erfindung wird nachstehend anhand des in der einzi gen Figur dargestellten Ausführungsbeispieles erläutert. In der Figur ist ein Wechselrichter 1 (Pulswechselrich ter) zu erkennen, der über seine beiden Gleichspannungs anschlüsse mit dem positiven Pol 2 und dem negativen Pol 3 eines Gleichspannungszwischenkreises verbunden ist. Die Wechselspannungsanschlüsse 4, 5, 6 des Wechselrich ters sind mit einer Induktionsmaschine 7 (Asynchronma schine) verbunden. Zur Einstellung der Schaltzustände der Halbleiterschalter des Wechselrichters 1 ist eine Steuer- und Regeleinrichtung 8 vorgesehen, der eingangs seitig Signale von Stromwandlern 9, 10, 11 sowie Span nungswandlern 12, 13, 14 zugeführt werden. Die Strom wandler 9, 10, 11 sind in den Verbindungen zwischen den Wechselspannungsanschlüssen 4, 5, 6 und der Induktions maschine 7 angeordnet. Die Spannungswandler 12, 13, 14 erfassen die zwischen den Wechselspannungsanschlüssen 4, 5, 6 anstehenden, verketteten Spannungen. The invention is explained below with reference to the embodiment shown in the uni gene figure. In the figure, an inverter 1 (pulse inverter ter) can be seen, which is connected via its two direct voltage connections to the positive pole 2 and the negative pole 3 of a DC intermediate circuit. The AC voltage connections 4 , 5 , 6 of the inverter are connected to an induction machine 7 (asynchronous machine). To set the switching states of the semiconductor switches of the inverter 1 , a control and regulating device 8 is provided, the input signals from current transformers 9 , 10 , 11 and voltage converters 12 , 13 , 14 are supplied. The current transformers 9 , 10 , 11 are arranged in the connections between the AC voltage connections 4 , 5 , 6 and the induction machine 7 . The voltage converters 12 , 13 , 14 detect the interlinked voltages present between the AC voltage connections 4 , 5 , 6 .
Zur Ermittlung des zwischen den Polen 2, 3 anstehenden Augenblickwerts der Gleichspannungszwischenkreisspannung Ud(t) (Zwischenkreisspannung) ist eine Gleichspannungs erfassungseinrichtung 15 vorgesehen, die diesen Meßwert Ud(t) an einen Mittelwertbildner 16 und an den ersten Eingang eines Dividierers 17 abgibt. Das Ausgangssignal des Mittelwertbildners 16 stellt den zeitlichen Mittel wert der Gleichspannungszwischenkreisspannung UdM(t) dar und wird dem zweiten Eingang des Dividierers 17 zugelei tet.To determine the instantaneous value of the DC voltage intermediate circuit voltage Ud (t) (intermediate circuit voltage) between the poles 2 , 3 , a DC voltage detection device 15 is provided, which outputs this measured value Ud (t) to an averager 16 and to the first input of a divider 17 . The output signal of the averager 16 represents the time average of the DC link voltage UdM (t) and is supplied to the second input of the divider 17 .
Der Dividierer 17 bildet den Quotienten A aus dem Divi dend Ud(t) und dem Divisor UdM(t) und gibt diesen Quoti enten A an den Eingang x eines Rechenwerks 18 ab. Durch den Quotienten A wird die Spannungswelligkeit der Zwi schenkreisspannung erfaßt:The divider 17 forms the quotient A from the divi dend Ud (t) and the divisor UdM (t) and outputs this quotient A at the input x of an arithmetic unit 18 . The voltage ripple of the intermediate circuit voltage is detected by the quotient A:
A = Ud(t)/UdM(t).A = Ud (t) / UdM (t).
Dem Eingang y des Rechenwerks 18 liegt die drehmoment bildende Sollwertkomponente Msoll (Drehmoment-Sollwert) an. Das Rechenwerk 18 gibt über seinen Ausgang Z die korrigierte drehmomentbildende Sollwertkomponente Msoll′ an die Steuer- und Regeleinrichtung 8 ab.The torque-forming setpoint component Mset (torque setpoint) is applied to the input y of the arithmetic unit 18 . The arithmetic and logic unit 18 outputs the corrected torque-forming setpoint component Msoll 'to the control and regulating device 8 via its output Z.
Dabei kann die Aufschaltung der Zwischenkreisspannungs welligkeit auf die drehmomentbildende Sollwertkomponente linear oder quadratisch erfolgen. Eine lineare Aufschal tung bewirkt ein Konstant-Strom-Verhalten des Antriebs systems.The DC link voltage can be applied ripple on the torque-generating setpoint component linear or square. A linear overlay device causes a constant current behavior of the drive systems.
Eine quadratische Aufschaltung bewirkt ein ohmsches Ver halten des AntriebssystemsA square connection causes an ohmic Ver hold the drive system
(|Z| = Betrag des Scheinwiderstandes)(| Z | = amount of impedance)
Msoll′ = A² · Msoll.Msoll ′ = A² · Msoll.
Die vorstehenden Ausführungen gelten für einen motori schen Betrieb der Induktionsmaschine 7. Bei generatori schem Betrieb der Induktionsmaschine gilt für die linea re AufschaltungThe above statements apply to motor operation of the induction machine 7 . When operating the induction machine as a generator, the linear connection applies
Msoll′ = (1/A) · MsollMsoll ′ = (1 / A) · Msoll
Bei generatorischem Betrieb der Induktionsmaschine gilt für die quadratische AufschaltungThe following applies to generator operation of the induction machine for square connection
Msoll′ = (1/A²) · Msoll.Msoll ′ = (1 / A²) · Msoll.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4110225A DE4110225C2 (en) | 1991-03-28 | 1991-03-28 | Control method and control arrangement for an inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4110225A DE4110225C2 (en) | 1991-03-28 | 1991-03-28 | Control method and control arrangement for an inverter |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4110225A1 true DE4110225A1 (en) | 1992-10-01 |
DE4110225C2 DE4110225C2 (en) | 1994-07-21 |
Family
ID=6428411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4110225A Expired - Lifetime DE4110225C2 (en) | 1991-03-28 | 1991-03-28 | Control method and control arrangement for an inverter |
Country Status (1)
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DE (1) | DE4110225C2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995024073A1 (en) * | 1994-03-01 | 1995-09-08 | Aktiebolaget Electrolux | Method and arrangement for controlling an induction motor |
EP0823774A1 (en) * | 1996-07-12 | 1998-02-11 | FHP Motors GmbH | Frequency converter for operating an asynchronous three-phase motor |
EP1094592A2 (en) * | 1999-09-03 | 2001-04-25 | SEW-EURODRIVE GMBH & CO. | Method for output voltage limitation for a voltage/frequency controlled converter with intermediate circuit and a converter |
EP1585373A1 (en) * | 2004-04-06 | 2005-10-12 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electronic ballast with current control and positive feedback of a disturbance signal |
DE102009021823A1 (en) | 2009-05-18 | 2010-12-09 | Bombardier Transportation Gmbh | Overcurrent limiting in the control of converter-fed three-phase machines |
US8129936B2 (en) | 2006-10-30 | 2012-03-06 | Bombardier Transportation Gmbh | Open-loop and/or closed-loop control system of a 3-phase power converter for the operation of an asynchronous machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19727507A1 (en) * | 1997-06-30 | 1999-01-07 | Abb Daimler Benz Transp | Regulation for a drive with an asynchronous motor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2329583B2 (en) * | 1972-06-13 | 1978-05-24 | General Electric Co., Schenectady, N.Y. (V.St.A.) | Arrangement for speed control of an AC motor |
DE3135764A1 (en) * | 1980-09-22 | 1982-05-27 | Borg Warner | STABILIZATION CIRCUIT FOR A REGULATED INVERTER MOTOR SYSTEM |
DE3223786A1 (en) * | 1982-06-24 | 1983-12-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for preventing oscillations between the load and the intermediate circuit in converters whose frequency is followed-up and which have a variable intermediate-circuit voltage |
DE3347511A1 (en) * | 1983-01-03 | 1984-07-05 | General Electric Co., Schenectady, N.Y. | AC MACHINE DRIVE SYSTEMS WITH RESONANCE CURRENT SUPPRESSION |
-
1991
- 1991-03-28 DE DE4110225A patent/DE4110225C2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2329583B2 (en) * | 1972-06-13 | 1978-05-24 | General Electric Co., Schenectady, N.Y. (V.St.A.) | Arrangement for speed control of an AC motor |
DE3135764A1 (en) * | 1980-09-22 | 1982-05-27 | Borg Warner | STABILIZATION CIRCUIT FOR A REGULATED INVERTER MOTOR SYSTEM |
DE3223786A1 (en) * | 1982-06-24 | 1983-12-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for preventing oscillations between the load and the intermediate circuit in converters whose frequency is followed-up and which have a variable intermediate-circuit voltage |
DE3347511A1 (en) * | 1983-01-03 | 1984-07-05 | General Electric Co., Schenectady, N.Y. | AC MACHINE DRIVE SYSTEMS WITH RESONANCE CURRENT SUPPRESSION |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995024073A1 (en) * | 1994-03-01 | 1995-09-08 | Aktiebolaget Electrolux | Method and arrangement for controlling an induction motor |
US5734250A (en) * | 1994-03-01 | 1998-03-31 | Aktiebolaget Electrolux | Method and arrangement for controlling an induction motor |
AU692528B2 (en) * | 1994-03-01 | 1998-06-11 | Aktiebolaget Electrolux | Method and arrangement for controlling an induction motor |
EP0823774A1 (en) * | 1996-07-12 | 1998-02-11 | FHP Motors GmbH | Frequency converter for operating an asynchronous three-phase motor |
EP1094592A2 (en) * | 1999-09-03 | 2001-04-25 | SEW-EURODRIVE GMBH & CO. | Method for output voltage limitation for a voltage/frequency controlled converter with intermediate circuit and a converter |
EP1094592B1 (en) * | 1999-09-03 | 2010-10-20 | SEW-EURODRIVE GmbH & Co. KG | Method for output voltage limitation for a voltage/frequency controlled converter with intermediate circuit and a converter |
EP1585373A1 (en) * | 2004-04-06 | 2005-10-12 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electronic ballast with current control and positive feedback of a disturbance signal |
US8129936B2 (en) | 2006-10-30 | 2012-03-06 | Bombardier Transportation Gmbh | Open-loop and/or closed-loop control system of a 3-phase power converter for the operation of an asynchronous machine |
DE102009021823A1 (en) | 2009-05-18 | 2010-12-09 | Bombardier Transportation Gmbh | Overcurrent limiting in the control of converter-fed three-phase machines |
Also Published As
Publication number | Publication date |
---|---|
DE4110225C2 (en) | 1994-07-21 |
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