WO2011160642A3 - Method for controlling a converter arrangement and a control device - Google Patents

Method for controlling a converter arrangement and a control device Download PDF

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Publication number
WO2011160642A3
WO2011160642A3 PCT/DK2011/050230 DK2011050230W WO2011160642A3 WO 2011160642 A3 WO2011160642 A3 WO 2011160642A3 DK 2011050230 W DK2011050230 W DK 2011050230W WO 2011160642 A3 WO2011160642 A3 WO 2011160642A3
Authority
WO
WIPO (PCT)
Prior art keywords
converter
switching
link
reactive power
branch
Prior art date
Application number
PCT/DK2011/050230
Other languages
French (fr)
Other versions
WO2011160642A2 (en
Inventor
Michael Adam Zagrodnik
Original Assignee
Vestas Wind Systems A/S
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 Vestas Wind Systems A/S filed Critical Vestas Wind Systems A/S
Publication of WO2011160642A2 publication Critical patent/WO2011160642A2/en
Publication of WO2011160642A3 publication Critical patent/WO2011160642A3/en

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
    • H02M7/493—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 the static converters being arranged for operation in parallel
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Rectifiers (AREA)
  • Inverter Devices (AREA)

Abstract

In accordance with the present inventive concept, there is provided a method for controlling a converter arrangement connected to a DC link, the arrangement comprising a converter branch for a respective phase of the converter, the converter branch comprising a plurality of converter legs, each converter leg being switchable between a positive rail of the DC link and a negative rail of the DC link in accordance with a plurality of switching configurations, wherein said converter branch may assume a plurality of switching states, each having a different number of converter legs connected to the positive rail of the DC link, the method comprising: determining a real power reference and a reactive power reference, estimating a real power and a reactive power provided by the converter arrangement for each switching state of the plurality of switching states based on a Thevenin reduced model of the converter branch, determining a switching state of the plurality of switching states based on a real power reference, a predicted real power, a reactive power reference and a predicted reactive power, and selecting a switch configuration of the plurality of switching configurations based on said switching state.
PCT/DK2011/050230 2010-06-24 2011-06-22 Method for controlling a converter arrangement and a control device WO2011160642A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US35807810P 2010-06-24 2010-06-24
DKPA201000561 2010-06-24
US61/358,078 2010-06-24
DKPA201000561 2010-06-24

Publications (2)

Publication Number Publication Date
WO2011160642A2 WO2011160642A2 (en) 2011-12-29
WO2011160642A3 true WO2011160642A3 (en) 2013-01-17

Family

ID=44630350

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2011/050230 WO2011160642A2 (en) 2010-06-24 2011-06-22 Method for controlling a converter arrangement and a control device

Country Status (1)

Country Link
WO (1) WO2011160642A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2523552A (en) * 2014-02-26 2015-09-02 Bowman Power Group Ltd Power conversion
US10298140B2 (en) 2015-04-16 2019-05-21 Vestas Wind Systems A/S Wind turbine converter control

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030163296A1 (en) * 2002-02-28 2003-08-28 Zetacon Corporation Predictive control system and method
US20040032755A1 (en) * 2002-06-13 2004-02-19 Riku Pollanen Method in connection with converter bridges

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030163296A1 (en) * 2002-02-28 2003-08-28 Zetacon Corporation Predictive control system and method
US20040032755A1 (en) * 2002-06-13 2004-02-19 Riku Pollanen Method in connection with converter bridges

Also Published As

Publication number Publication date
WO2011160642A2 (en) 2011-12-29

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