DE102005004697A1 - Single phase four-quadrant chopper load and impedance currents determining method for railway vehicle, involves separating rectifier circuit output current as load and impedance currents by band pass filter/estimation algorithm - Google Patents
Single phase four-quadrant chopper load and impedance currents determining method for railway vehicle, involves separating rectifier circuit output current as load and impedance currents by band pass filter/estimation algorithm Download PDFInfo
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- DE102005004697A1 DE102005004697A1 DE200510004697 DE102005004697A DE102005004697A1 DE 102005004697 A1 DE102005004697 A1 DE 102005004697A1 DE 200510004697 DE200510004697 DE 200510004697 DE 102005004697 A DE102005004697 A DE 102005004697A DE 102005004697 A1 DE102005004697 A1 DE 102005004697A1
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- current
- load
- quadrant
- output current
- estimation algorithm
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Classifications
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- 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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren bei Vier-Quadrantenstellern gemäß dem Oberbegriff von Patentanspruch 1 zur Ermittlung des Laststromes IL und des Saugkreisstromes IS aus dem Ausgangsstrom IA.The invention relates to a method in four-quadrant controllers according to the preamble of claim 1 for determining the load current I L and the Saugkreisstromes I S from the output current I A.
Die Verwendung von Vier-Quadrantenstellern, die zur Gleichrichtung eines Wechselstromes eingesetzt werden, ist hinlänglich bekannt. Ebenfalls bekannt ist die Verwendung dieser Vier- Quadrantensteller für die Bereitstellung einer Eingangsspannung für geregelte elektrische Antriebe, insbesondere bei Bahnfahrzeugen.The Use of four-quadrant actuators, which are used to rectify a AC are used, is well known. Also known is the use of these four-quadrant controllers for deployment an input voltage for Controlled electric drives, in particular for railway vehicles.
Auch bekannt ist der im Oberbegriff von Patentanspruch 1 beschriebene Aufbau des Vier- Quadrantenstellers, im Sinne der Erfindung bestehend aus einer Brücke aus steuerbaren Halbleiterventilen, einer Zwischenkreiskapazität und einem Saugkreis mit den Elementen Saugkreiskapazität und Saugkreisinduktivität. Die Steuerung und Überwachung einer solchen Schaltung ist ebenfalls bekannt. Für Steuerungs- und Überwachungszwecke ist sowohl die Kenntnis über den aktuellen Wert des Stromes IS als auch über den des Stromes IL, welcher den Eingangsstrom für den elektrischen Antrieb darstellt, von Interesse. Benötigt werden die aktuellen Werte dieser Ströme beispielsweise für die Überwachung auf einen Kurzschluss, die Überwachung auf unerwartete Werte, den Schutz vor Überlastung des Saugkreises, den Schutz vor Überlastung der angeschlossenen Last, eine Vorsteuerung des Vier-Quadrantenstellers durch Berücksichtigung des Laststromes IL in der Steuerung und für eine Plausibilitätsprüfung, um daraus Fehler in der Messwerterfassung zu erkennen. Für die Kenntnisnahme dieser Ströme müssen nach bisheriger Technik beide Ströme mit separaten Sensoren gemessen werden. Durch diese Sensoren wird der schaltungstechnische Aufwand erhöht.Also known is the structure of the four-quadrant actuator described in the preamble of claim 1, in the context of the invention consisting of a bridge of controllable semiconductor valves, a DC link capacitance and a absorption circuit with the elements Saugkreiskapazität and Saugkreisinduktivität. The control and monitoring of such a circuit is also known. For control and monitoring purposes, both the knowledge about the current value of the current I S and that of the current I L , which represents the input current for the electric drive, is of interest. The current values of these currents are needed, for example, for monitoring for a short circuit, monitoring for unexpected values, protection against overloading of the absorption circuit, protection against overloading of the connected load, pre-control of the four-quadrant actuator by taking the load current I L into account Control and for a plausibility check in order to detect errors in the measured value acquisition. To take note of these currents, according to the prior art, both currents must be measured with separate sensors. By these sensors, the circuitry complexity is increased.
Die Aufgabe der Erfindung ist es, ein Verfahren bereitzustellen, welches unter möglichst geringem schaltungstechnischem Aufwand online die Ermittlung des Laststromes und des Saugkreisstromes leistet.The The object of the invention is to provide a method which under as possible low circuit complexity online the determination of the Load current and the Saugkreisstromes makes.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den Merkmalen aus dem kennzeichnenden Teil von Patentanspruch 1. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen beschrieben.The solution This object is achieved according to the invention with the features of characterizing part of claim 1. Advantageous developments of the invention are in the dependent claims described.
Der Kern der Erfindung besteht darin, aus dem Ausgangsstrom IA des Gleichrichters den Laststrom IL und den Saugkreisstrom IS zu separieren.The essence of the invention is to separate the load current I L and the absorption circuit current I S from the output current I A of the rectifier.
Die
Erfindung soll anhand der
In
der
Der
Gleichrichterschaltung
Dem
Zwischenkreis parallelgeschaltet ist ein Saugkreis
Am
Vier-Quadrantensteller angeschlossen ist die elektrische Last
Am
Knotenpunkt
Die
Es
stellt sich zuerst die Frage, inwieweit der Ausgangstrom IA bekannt ist. Zum Einen kann der Strom IA mit einem Stromsensor
Der Ermittlung des Ausgangsstromes IA liegt nun zugrunde, dass der Gleichanteil 0IA und der Anteil mit doppelter Netzfrequenz 2IA des ausgangsseitigen Stromes IA sich aus dem Grundschwingungsanteil 1I4QS des Eingangsstromes I4QS und aus dem Grundschwingungsanteil Ia des Aussteuergrades a des Vier-Quadrantenstellers berechnen lassen, wobei ϕ1 und ϕ2 die Phasenwinkel des Aussteuergrades a und des Eingangsstromes I4QS darstellen: The determination of the output current I A is based on that the DC component 0 I A and the share with double mains frequency 2 I A of the output side current I A from the fundamental component 1 I 4QS of the input current I 4QS and from the fundamental component I a of Aussteuergrades a of the four-quadrant controller, where φ 1 and φ 2 represent the phase angles of the modulation level a and of the input current I 4QS :
Der
Grundschwingungsanteil 1I4QS des
Eingangsstromes I4QS kann aus dem Eingangsstrom
I4QS entweder über eine Fouriertransformation, über einen
vorgeschalteten Filter oder über
ein Estimationsverfahren, wie beispielsweise das Least-Squares-Estimation-Verfahren
ermittelt werden, wie in
Der Ausgangsstrom IA lässt sich also entweder direkt messen oder er lässt sich aus dem Eingangsstrom I4QS und dem Aussteuergrad a ermitteln. Somit wird eine Ermittlung des Laststromes IL und des Saugkreisstromes IS möglich. Für die Ermittlung dieser Ströme bieten sich zwei Möglichkeiten an: die Anwendung eines Bandpasses oder die Anwendung eines Estimationsalgorithmus.The output current I A can therefore either be measured directly or it can be determined from the input current I 4QS and the modulation level a. Thus, a determination of the load current I L and the Saugkreisstromes I S is possible. There are two possibilities for determining these currents: the application of a bandpass or the application of an estimation algorithm.
Bei
der Verwendung eines Bandpasses, wie in
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510004697 DE102005004697A1 (en) | 2005-02-02 | 2005-02-02 | Single phase four-quadrant chopper load and impedance currents determining method for railway vehicle, involves separating rectifier circuit output current as load and impedance currents by band pass filter/estimation algorithm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510004697 DE102005004697A1 (en) | 2005-02-02 | 2005-02-02 | Single phase four-quadrant chopper load and impedance currents determining method for railway vehicle, involves separating rectifier circuit output current as load and impedance currents by band pass filter/estimation algorithm |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005004697A1 true DE102005004697A1 (en) | 2006-08-10 |
Family
ID=36709581
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DE200510004697 Withdrawn DE102005004697A1 (en) | 2005-02-02 | 2005-02-02 | Single phase four-quadrant chopper load and impedance currents determining method for railway vehicle, involves separating rectifier circuit output current as load and impedance currents by band pass filter/estimation algorithm |
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DE (1) | DE102005004697A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020053175A1 (en) * | 2018-09-13 | 2020-03-19 | Siemens Mobility GmbH | Method for monitoring an absorption circuit of a converter system |
CN113933679A (en) * | 2020-06-29 | 2022-01-14 | 株洲中车时代电气股份有限公司 | Parameter monitoring method and device for locomotive converter circuit |
WO2022078521A1 (en) * | 2020-10-16 | 2022-04-21 | 中车永济电机有限公司 | Method for composite detection and control of sudden load change in four-quadrant converter of locomotive |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19711534A1 (en) * | 1997-03-20 | 1998-10-01 | Abb Daimler Benz Transp | Method for regulating the continuous voltage of a current rectifier |
DE10114570A1 (en) * | 2001-03-24 | 2002-09-26 | Abb Research Ltd | Device for uninterruptible power supply and active filtering |
EP1253694A1 (en) * | 2001-04-24 | 2002-10-30 | FRAKO Kondensatoren- und Anlagenbau GmbH | Circuit for reducing harmonic currents in a mono- or multiphase supply network neutral conductor |
-
2005
- 2005-02-02 DE DE200510004697 patent/DE102005004697A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19711534A1 (en) * | 1997-03-20 | 1998-10-01 | Abb Daimler Benz Transp | Method for regulating the continuous voltage of a current rectifier |
DE10114570A1 (en) * | 2001-03-24 | 2002-09-26 | Abb Research Ltd | Device for uninterruptible power supply and active filtering |
EP1253694A1 (en) * | 2001-04-24 | 2002-10-30 | FRAKO Kondensatoren- und Anlagenbau GmbH | Circuit for reducing harmonic currents in a mono- or multiphase supply network neutral conductor |
Non-Patent Citations (10)
Title |
---|
AKAGI,H.: New Trends in active Filters for Power Conditioning. In: IEEE Transactions on Industry Applications,Vol.32, No.6, Nov./Dez.1996,S.1312-1322 * |
AKAGI,H.: New Trends in active Filters for Power Conditioning. In: IEEE Transactions on Industry Applications,Vol.32, No.6, Nov./Dez.1996,S.1312-1322; |
CHOUDHURY,D.R.: Networks and Systems, Willey Eastern Ltd.,New Dehli,1988 * |
CHOUDHURY,D.R.: Networks and Systems, Willey Eastern Ltd.,New Dehli,1988; |
DÄHLER,P.,u.a.: Vrhalten statischer Umrichter am Bahnnetz. In: Elektrische Bahnen 94, 1996,eb 8/9, S.287-293 * |
DÄHLER,P.,u.a.: Vrhalten statischer Umrichter am Bahnnetz. In: Elektrische Bahnen 94, 1996,eb 8/9, S.287-293; |
HÜCKELHEIM,K.,et.al.: Novel 4-quadrant convertr control method. In: Elektrische Bahnen,88,1990, eb 3/90, S.122-125 * |
HÜCKELHEIM,K.,et.al.: Novel 4-quadrant convertr control method. In: Elektrische Bahnen,88,1990, eb 3/90, S.122-125; |
HÜCKELHEIM,K.,u.a.: Novel 4-quadrant converter control method. In: Elektrische Bahnen 88,1990, eb 3/90,S.122-125 * |
HÜCKELHEIM,K.,u.a.: Novel 4-quadrant converter control method. In: Elektrische Bahnen 88,1990, eb 3/90,S.122-125; |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020053175A1 (en) * | 2018-09-13 | 2020-03-19 | Siemens Mobility GmbH | Method for monitoring an absorption circuit of a converter system |
CN112889208A (en) * | 2018-09-13 | 2021-06-01 | 西门子交通有限公司 | Method for monitoring a trap circuit of a converter system |
CN113933679A (en) * | 2020-06-29 | 2022-01-14 | 株洲中车时代电气股份有限公司 | Parameter monitoring method and device for locomotive converter circuit |
WO2022078521A1 (en) * | 2020-10-16 | 2022-04-21 | 中车永济电机有限公司 | Method for composite detection and control of sudden load change in four-quadrant converter of locomotive |
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