FI118583B - Strömmätning av en frekvensomriktare - Google Patents
Strömmätning av en frekvensomriktare Download PDFInfo
- Publication number
- FI118583B FI118583B FI20060537A FI20060537A FI118583B FI 118583 B FI118583 B FI 118583B FI 20060537 A FI20060537 A FI 20060537A FI 20060537 A FI20060537 A FI 20060537A FI 118583 B FI118583 B FI 118583B
- Authority
- FI
- Finland
- Prior art keywords
- current
- output
- control system
- output currents
- vector
- Prior art date
Links
Classifications
-
- 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
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- 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
- H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
- Control Of Ac Motors In General (AREA)
Claims (10)
1. Förfarande för mätning av utströmmarna i en frekvensomriktare, företrädesvis en vektorstyrd frekvensomriktare omfattande en tili växelströmsnätet ansluten 5 nätbrygga (10) och en tili lasten ansluten lastbrygga (11) mellan vilka finns ett mellanled, med hjälp av strömsampel frän en strömmätningsgivare i mellanledet, kännetecknat av, att samplet av strömmätningsgivarens signal tas väsentligen samtidigt med utspänningsvektorns ändringstidpunkt samt med en förutbestämd fördröjning ίο efter ändringstidpunkten när transienterna avklingat, och att utströmmens ändringshastighet (di/dt) beräknas med hjälp av de matta samplen och tiden mellan samplingstidpunkterna.
2. Förfarande enligt patentkrav 1, is kännetecknat av, att tidsintegralen av strömmätningsgivarens signal bildas före samplingen.
3. Förfarande enligt patentkrav 1 eller 2, kännetecknat av, att alla utströmmarnas värden vid önskad tidpunkt 2. beräknas med hjälp av den mätta strömmens ändringshastighet.
• » * *·· 4. Förfarande enligt patentkraven 1-3, kännetecknat av, att utströmmarnas värden estimeras i mitten av nollvektorn • · • pä grundval av de beräknade momentanvärdena. M» « ··♦ n c ··* .
5. Anordning för mätning av utströmmarna i en frekvensomriktare, företrädesvis .···. en vektorstyrd frekvensomriktare omfattande en tili växelströmsnätet ansluten ä · nätbrygga (10) och en tili lasten ansluten lastbrygga (11) mellan vilka finns ett . mellanled, vilken anordning i mellanledet ärförsedd med en strömmätningsgivare 3. och ett styrsystem för mätning av utströmmarna med hjälp av strömsampel frän • · *···’ strömmätningsgivaren, där med hjälp av styrsystemet ett sampel av strömmätningsgivarens Ström :··· kan tas strax före utspänningsvektorns varje ändringstidpunkt samt efter ändringstidpunkten när transienterna avklingat, • ! ··· t · • · · • M • · Q 118583 7 kännetecknad av, att styrsystemet beräknar utströmmens ändringshastighet (di/dt) med hjälp av de matta samplen och tiden mellan samplingstidpunkterna.
6. Anordning enligt patentkrav 5, 5 kännetecknad av, att styrsystemet före samplingen bildar tidsintegralen av strömmätningsgivarens signal.
7. Anordning enligt patentkrav 5-6, kännetecknat av, att styrsystemet beräknar alla utströmmarnas värden vid io önskad tidpunkt med hjälp av den mätta strömmens ändringshastighet.
8. Anordning enligt patentkraven 5-7, kännetecknat av, att styrsystemet i mitten av nollvektorn estimerar utströmmarnas värden pä grundval av de beräknade momentanvärdena. 15
9. Anordning enligt patentkraven 5, kännetecknat av, att strömmätningsgivaren är en shuntresistor i mellanledet.
10. Anordning enligt patentkraven 5, 20 kännetecknat av, att strömmätningsgivaren är en pa Hall-fenomenet baserad omvandlare i mellanledet. • » • » • ·· e· * • · · • · • « e · • · * • · e *·· · **· • · • · * · · • · · *·· • •e • e · *·♦ ♦ • · · • · · ··· ·*· • · • · ·** · e · * ** • · • · m e·* • · • · ··· • · • · · e *
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20060537A FI118583B (sv) | 2006-06-01 | 2006-06-01 | Strömmätning av en frekvensomriktare |
EP07010576.2A EP1863160B1 (en) | 2006-06-01 | 2007-05-29 | Measurement of the current of a frequency converter |
CN2007101107078A CN101082640B (zh) | 2006-06-01 | 2007-06-01 | 频率转换器电流的测量方法及设备 |
US11/806,637 US7742321B2 (en) | 2006-06-01 | 2007-06-01 | Measurement of the current of a frequency converter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20060537A FI118583B (sv) | 2006-06-01 | 2006-06-01 | Strömmätning av en frekvensomriktare |
FI20060537 | 2006-06-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20060537A0 FI20060537A0 (sv) | 2006-06-01 |
FI118583B true FI118583B (sv) | 2007-12-31 |
Family
ID=36651365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20060537A FI118583B (sv) | 2006-06-01 | 2006-06-01 | Strömmätning av en frekvensomriktare |
Country Status (4)
Country | Link |
---|---|
US (1) | US7742321B2 (sv) |
EP (1) | EP1863160B1 (sv) |
CN (1) | CN101082640B (sv) |
FI (1) | FI118583B (sv) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI122159B (sv) * | 2009-04-02 | 2011-09-15 | Vacon Oyj | Startning av en frekvensomformare |
DE102009017023A1 (de) * | 2009-04-14 | 2010-10-28 | Siemens Aktiengesellschaft | Antriebssystem für eine Anlage mit einem Wechselspannungsinselnetz |
US8339078B2 (en) * | 2009-07-13 | 2012-12-25 | The City University Of Hong Kong | Apparatus and method for providing information relating to a motor |
KR101276582B1 (ko) | 2011-12-27 | 2013-06-19 | 전자부품연구원 | 전원 공급 회로를 가지는 인버터 장치 |
CN104158535B (zh) * | 2014-07-23 | 2017-06-16 | 三星半导体(中国)研究开发有限公司 | 频率电压转换器 |
US9584043B2 (en) * | 2015-02-28 | 2017-02-28 | Rockwell Automation Technologies, Inc. | Inverter phase current reconstruction apparatus and methods |
KR101922998B1 (ko) * | 2017-03-21 | 2018-11-28 | 엘에스산전 주식회사 | 인버터의 출력전류 검출 장치 |
DE102019119868B3 (de) * | 2019-07-23 | 2020-11-05 | Danfoss Power Electronics A/S | Verfahren zum Bestimmen eines Gleichrichterstufenausgangsstroms und/oder von netzseitigen Strömen eines Frequenzumrichters |
DE102020111901B3 (de) * | 2020-05-03 | 2021-04-22 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren und Vorrichtung zur Bestimmung des Zwischenkreisstromes eines Stromrichters |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520298A (en) * | 1984-04-03 | 1985-05-28 | Westinghouse Electric Corp. | Method and apparatus for sampling output AC currents in a voltage-fed inverter power supply |
EP0502226B1 (de) * | 1991-03-06 | 1995-09-27 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Bildung von Maschinenströmen einer stromrichtergespeisten Drehfeldmaschine |
CN2105139U (zh) * | 1991-11-14 | 1992-05-20 | 邵钟武 | 交流电动机变频调速装置 |
US5309349A (en) * | 1992-09-22 | 1994-05-03 | Industrial Technology Research Institute | Current detection method for DC to three-phase converters using a single DC sensor |
US5367240A (en) * | 1992-12-11 | 1994-11-22 | Otis Elevator Company | Low cost current sensor for fast-switching inverter applications |
DK172570B1 (da) * | 1995-01-23 | 1999-01-25 | Danfoss As | Vekselretter og fremgangsmåde til måling af vekselretterens fasestrømme |
FR2752111B1 (fr) * | 1996-07-30 | 1998-10-30 | Texas Instruments France | Procede et dispositif de commande d'onduleurs |
GB0213098D0 (en) * | 2002-06-07 | 2002-07-17 | Trw Ltd | Motor control device |
FI115806B (sv) * | 2003-07-04 | 2005-07-15 | Abb Oy | Frekvensomriktare samt elmotordrift |
EP1496605A1 (en) * | 2003-07-07 | 2005-01-12 | Vacon Oyj | Frequency converter and its control method |
DE102004031680A1 (de) * | 2004-06-30 | 2006-02-09 | Siemens Ag | Verfahren zur automatischen Einstellung des Netzfrequenzparameters eines an einem Netz angeschlossenen Frequenzumrichters |
DE102004035798A1 (de) * | 2004-07-23 | 2006-03-16 | Siemens Ag | Frequenzumrichter mit einem kondensatorlosen Zwischenkreis |
FI121491B (sv) * | 2004-11-11 | 2010-11-30 | Vacon Oyj | Överspänningsskydd för en frekvensomriktare |
CN100486093C (zh) * | 2006-03-08 | 2009-05-06 | 合肥阳光电源有限公司 | 风力发电用全功率型交直交变流器的控制结构 |
-
2006
- 2006-06-01 FI FI20060537A patent/FI118583B/sv not_active IP Right Cessation
-
2007
- 2007-05-29 EP EP07010576.2A patent/EP1863160B1/en not_active Not-in-force
- 2007-06-01 US US11/806,637 patent/US7742321B2/en not_active Expired - Fee Related
- 2007-06-01 CN CN2007101107078A patent/CN101082640B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7742321B2 (en) | 2010-06-22 |
CN101082640B (zh) | 2010-11-10 |
EP1863160B1 (en) | 2018-08-22 |
US20070279958A1 (en) | 2007-12-06 |
EP1863160A3 (en) | 2017-03-29 |
EP1863160A2 (en) | 2007-12-05 |
FI20060537A0 (sv) | 2006-06-01 |
CN101082640A (zh) | 2007-12-05 |
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