FI118583B - Strömmätning av en frekvensomriktare - Google Patents

Strömmätning av en frekvensomriktare Download PDF

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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
Application number
FI20060537A
Other languages
English (en)
Finnish (fi)
Other versions
FI20060537A0 (sv
Inventor
Jaakko Ollila
Risto Komulainen
Hannu Saren
Original Assignee
Vacon Oyj
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 Vacon Oyj filed Critical Vacon Oyj
Priority to FI20060537A priority Critical patent/FI118583B/sv
Publication of FI20060537A0 publication Critical patent/FI20060537A0/sv
Priority to EP07010576.2A priority patent/EP1863160B1/en
Priority to US11/806,637 priority patent/US7742321B2/en
Priority to CN2007101107078A priority patent/CN101082640B/zh
Application granted granted Critical
Publication of FI118583B publication Critical patent/FI118583B/sv

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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

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 *
FI20060537A 2006-06-01 2006-06-01 Strömmätning av en frekvensomriktare FI118583B (sv)

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
US11/806,637 US7742321B2 (en) 2006-06-01 2007-06-01 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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20060537 2006-06-01
FI20060537A FI118583B (sv) 2006-06-01 2006-06-01 Strömmätning av en frekvensomriktare

Publications (2)

Publication Number Publication Date
FI20060537A0 FI20060537A0 (sv) 2006-06-01
FI118583B true FI118583B (sv) 2007-12-31

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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)

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US (1) US7742321B2 (sv)
EP (1) EP1863160B1 (sv)
CN (1) CN101082640B (sv)
FI (1) FI118583B (sv)

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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

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Also Published As

Publication number Publication date
US20070279958A1 (en) 2007-12-06
FI20060537A0 (sv) 2006-06-01
EP1863160A3 (en) 2017-03-29
CN101082640A (zh) 2007-12-05
US7742321B2 (en) 2010-06-22
EP1863160B1 (en) 2018-08-22
EP1863160A2 (en) 2007-12-05
CN101082640B (zh) 2010-11-10

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