FI113306B - Kompensering av skenbar effekt med en frekvensomvandlare - Google Patents

Kompensering av skenbar effekt med en frekvensomvandlare Download PDF

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Publication number
FI113306B
FI113306B FI20021526A FI20021526A FI113306B FI 113306 B FI113306 B FI 113306B FI 20021526 A FI20021526 A FI 20021526A FI 20021526 A FI20021526 A FI 20021526A FI 113306 B FI113306 B FI 113306B
Authority
FI
Finland
Prior art keywords
reactive power
bridge
mains
frequency converter
network
Prior art date
Application number
FI20021526A
Other languages
English (en)
Finnish (fi)
Other versions
FI20021526A0 (sv
FI20021526A (sv
Inventor
Risto Komulainen
Veijo Karppinen
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8564476&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI113306(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vacon Oyj filed Critical Vacon Oyj
Priority to FI20021526A priority Critical patent/FI113306B/sv
Publication of FI20021526A0 publication Critical patent/FI20021526A0/sv
Priority to EP03077624A priority patent/EP1394920A1/en
Priority to US10/648,359 priority patent/US6885171B2/en
Publication of FI20021526A publication Critical patent/FI20021526A/sv
Application granted granted Critical
Publication of FI113306B publication Critical patent/FI113306B/sv

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
    • H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
    • 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
    • H02M5/4585—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 having a rectifier with controlled elements
    • 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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/26—Power factor control [PFC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/20—Active power filtering [APF]

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)

Claims (2)

1. Förfarande för kompensering av den reaktiva effekten och/eller de harmoniska strömmarna i ett växelströmsnät med hjälp av en frekvensomriktare (1) som 5 matar en växelströmslast (3), vilken frekvensomriktare omfattar en med styrbara halvledarelkopplare försedd nätbrygga (10) och ätminstone en lastbrygga (11), kännetecknad av, att i förfarandet: växelströmsnätets reaktiva effekt och/eller harmoniska strömmar mäts, belastningen pä frekvensomriktarens nätbrygga mäts, 1. växelströmsnätets reaktiva effekt och/eller harmoniska strömmar kompenseras med hjälp av frekvensomriktaren när nätbryggan gär pä nedsatt effekt eller tomgäng.
2. Anordning för kompensering av den reaktiva effekten och/eller de harmoniska is strömmarna i ett växelströmsnät, vilken anordning omfattar: en frekvensomriktare (1) som matar en växelströmslast (3), där frekvensomriktaren omfattar en med styrbara halvledarelkopplare försedd nätbrygga (10) och ätminstone en lastbrygga (11) samt en styrenhet (2) för styrning av nät- och lastbryggan, 2. kännetecknad av, att anordningen ytterligare omfattar: en mätenhet (5) för mätning av växelströmsnätets reaktiva effekt och/eller .' harmoniska strömmar och •i en mätenhet (4) som mäter belastningen pä frekvensomriktarens nätbrygga och • att styrenheten (2) styrs att med hjälp av frekvensomriktaren kompensera •; *: 25 växelströmsnätets reaktiva effekt och/eller harmoniska strömmar när nätbryggan :' . · gär pä nedsatt effekt eller tomgäng. «* # • · » » * I * i • » i »
FI20021526A 2002-08-27 2002-08-27 Kompensering av skenbar effekt med en frekvensomvandlare FI113306B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20021526A FI113306B (sv) 2002-08-27 2002-08-27 Kompensering av skenbar effekt med en frekvensomvandlare
EP03077624A EP1394920A1 (en) 2002-08-27 2003-08-22 Compensation of reactive power via a frequency converter
US10/648,359 US6885171B2 (en) 2002-08-27 2003-08-27 Compensation of reactive power via a frequency converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20021526 2002-08-27
FI20021526A FI113306B (sv) 2002-08-27 2002-08-27 Kompensering av skenbar effekt med en frekvensomvandlare

Publications (3)

Publication Number Publication Date
FI20021526A0 FI20021526A0 (sv) 2002-08-27
FI20021526A FI20021526A (sv) 2004-02-28
FI113306B true FI113306B (sv) 2004-03-31

Family

ID=8564476

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20021526A FI113306B (sv) 2002-08-27 2002-08-27 Kompensering av skenbar effekt med en frekvensomvandlare

Country Status (3)

Country Link
US (1) US6885171B2 (sv)
EP (1) EP1394920A1 (sv)
FI (1) FI113306B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121491B (sv) * 2004-11-11 2010-11-30 Vacon Oyj Överspänningsskydd för en frekvensomriktare
US7190143B2 (en) * 2005-05-27 2007-03-13 Rockwell Automation Technologies, Inc. Pulse width modulation (PWM) rectifier with variable switching frequency
US7800348B2 (en) * 2007-11-21 2010-09-21 Rockwell Automation Technologies, Inc. Motor drive with VAR compensation
EP2697904A4 (en) * 2011-04-14 2015-12-02 Harold Wells Associates Inc ELECTRICAL APPARATUS AND CONTROL SYSTEM
CN103730899A (zh) * 2013-12-24 2014-04-16 湖北华云电气股份有限公司 低压变频调速设备中的并联滤波补偿装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534854A (en) 1978-09-04 1980-03-11 Hitachi Ltd Controlling method of secondary winding-exciting motor
ATE35489T1 (de) 1983-10-12 1988-07-15 Bbc Brown Boveri & Cie Blindleistungskompensator zur kompensation einer blindstromkomponente in einem wechselspannungsnetz.
AU6531690A (en) * 1990-07-23 1992-02-18 Henri Courier De Mere Self-integration voltage converter
DE4327162C1 (de) 1993-08-07 1994-07-28 Licentia Gmbh Regelung des Netz-Leistungsfaktors einer umrichtergespeisten Synchronmaschine
US5561595A (en) * 1995-03-24 1996-10-01 Magl Power Inc. Power inverter with input line conditioning
JPH08322153A (ja) 1995-05-23 1996-12-03 Fuji Electric Co Ltd 無効電力補償用三相電力変換装置の制御方法
JP3548630B2 (ja) 1995-06-22 2004-07-28 株式会社東芝 Ｍｒ画像生成方法及びｍｒｉ装置

Also Published As

Publication number Publication date
US20040061483A1 (en) 2004-04-01
US6885171B2 (en) 2005-04-26
EP1394920A1 (en) 2004-03-03
FI20021526A0 (sv) 2002-08-27
FI20021526A (sv) 2004-02-28

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