Line filter design of parallel interleaved VSCs for high power wind energy conversion systems

Ghanshyamsinh Vijaysinh Gohil, Lorand Bede, Remus Teodorescu, Tamas Kerekes, Frede Blaabjerg

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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Resumé

The Voltage Source Converters (VSCs) are often connected in parallel in a Wind Energy Conversion System (WECS) to match the high power rating of the modern wind turbines. The effect of the interleaved carriers on the harmonic performance of the parallel connected VSCs is analyzed in this paper. In order to achieve low switching losses, the 60 clamp Discontinuous PulseWidth Modulation (DPWM1) is used to modulate the VSCs. A step-by-step design procedure of the line filter, which ensures the desired harmonic performance under all operating conditions, is presented. The analytical harmonic solution for the two parallel interleaved VSCs is derived in order to obtain the worst case voltage magnitude of the individual harmonic components. The required value of the filter admittance for the specific harmonic component is obtained by using the worst case voltage magnitude and the allowable harmonic injection limit. In order to achieve the desired filter performance with optimal values of the filter parameters, the use of a LC trap branch with the conventional LCL filter is proposed. The expressions for the resonant frequencies of the proposed line filter are derived and used in the design to selectively choose the values of the line filter components. The analysis and design methodology are also verified experimentally.
OriginalsprogEngelsk
TidsskriftI E E E Transactions on Power Electronics
Vol/bind30
Udgave nummer12
Sider (fra-til)6775 - 6790
Antal sider16
ISSN0885-8993
DOI
StatusUdgivet - dec. 2015

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Energy conversion
Wind power
Electric potential
Clamping devices
Wind turbines
Natural frequencies
Modulation

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    @article{99dcfe6f90384c8d8fd929b885d3d212,
    title = "Line filter design of parallel interleaved VSCs for high power wind energy conversion systems",
    abstract = "The Voltage Source Converters (VSCs) are often connected in parallel in a Wind Energy Conversion System (WECS) to match the high power rating of the modern wind turbines. The effect of the interleaved carriers on the harmonic performance of the parallel connected VSCs is analyzed in this paper. In order to achieve low switching losses, the 60 clamp Discontinuous PulseWidth Modulation (DPWM1) is used to modulate the VSCs. A step-by-step design procedure of the line filter, which ensures the desired harmonic performance under all operating conditions, is presented. The analytical harmonic solution for the two parallel interleaved VSCs is derived in order to obtain the worst case voltage magnitude of the individual harmonic components. The required value of the filter admittance for the specific harmonic component is obtained by using the worst case voltage magnitude and the allowable harmonic injection limit. In order to achieve the desired filter performance with optimal values of the filter parameters, the use of a LC trap branch with the conventional LCL filter is proposed. The expressions for the resonant frequencies of the proposed line filter are derived and used in the design to selectively choose the values of the line filter components. The analysis and design methodology are also verified experimentally.",
    keywords = "Voltage Source Convert (VSC), Parallel, Interleaving, Filter Design, Trap filter, Discontinuous PWM, Wind power, Parallel inverters, wind turbine, wind energy systems, wind energy conversion system, harmonic filter design, harmonic filter, LCL filter, parallel interleaved inverters, parallel interleaved converters, High power converters, Phase-shifted carrier-based pulsewidth modulation (PSC-PWM), circulating current, circulating current suppression, coupled inductor, inter phase transformer, inter cell transformer, High-order filter",
    author = "Gohil, {Ghanshyamsinh Vijaysinh} and Lorand Bede and Remus Teodorescu and Tamas Kerekes and Frede Blaabjerg",
    year = "2015",
    month = "12",
    doi = "10.1109/TPEL.2015.2394460",
    language = "English",
    volume = "30",
    pages = "6775 -- 6790",
    journal = "I E E E Transactions on Power Electronics",
    issn = "0885-8993",
    publisher = "IEEE",
    number = "12",

    }

    Line filter design of parallel interleaved VSCs for high power wind energy conversion systems. / Gohil, Ghanshyamsinh Vijaysinh; Bede, Lorand; Teodorescu, Remus; Kerekes, Tamas; Blaabjerg, Frede.

    I: I E E E Transactions on Power Electronics, Bind 30, Nr. 12, 12.2015, s. 6775 - 6790.

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

    TY - JOUR

    T1 - Line filter design of parallel interleaved VSCs for high power wind energy conversion systems

    AU - Gohil, Ghanshyamsinh Vijaysinh

    AU - Bede, Lorand

    AU - Teodorescu, Remus

    AU - Kerekes, Tamas

    AU - Blaabjerg, Frede

    PY - 2015/12

    Y1 - 2015/12

    N2 - The Voltage Source Converters (VSCs) are often connected in parallel in a Wind Energy Conversion System (WECS) to match the high power rating of the modern wind turbines. The effect of the interleaved carriers on the harmonic performance of the parallel connected VSCs is analyzed in this paper. In order to achieve low switching losses, the 60 clamp Discontinuous PulseWidth Modulation (DPWM1) is used to modulate the VSCs. A step-by-step design procedure of the line filter, which ensures the desired harmonic performance under all operating conditions, is presented. The analytical harmonic solution for the two parallel interleaved VSCs is derived in order to obtain the worst case voltage magnitude of the individual harmonic components. The required value of the filter admittance for the specific harmonic component is obtained by using the worst case voltage magnitude and the allowable harmonic injection limit. In order to achieve the desired filter performance with optimal values of the filter parameters, the use of a LC trap branch with the conventional LCL filter is proposed. The expressions for the resonant frequencies of the proposed line filter are derived and used in the design to selectively choose the values of the line filter components. The analysis and design methodology are also verified experimentally.

    AB - The Voltage Source Converters (VSCs) are often connected in parallel in a Wind Energy Conversion System (WECS) to match the high power rating of the modern wind turbines. The effect of the interleaved carriers on the harmonic performance of the parallel connected VSCs is analyzed in this paper. In order to achieve low switching losses, the 60 clamp Discontinuous PulseWidth Modulation (DPWM1) is used to modulate the VSCs. A step-by-step design procedure of the line filter, which ensures the desired harmonic performance under all operating conditions, is presented. The analytical harmonic solution for the two parallel interleaved VSCs is derived in order to obtain the worst case voltage magnitude of the individual harmonic components. The required value of the filter admittance for the specific harmonic component is obtained by using the worst case voltage magnitude and the allowable harmonic injection limit. In order to achieve the desired filter performance with optimal values of the filter parameters, the use of a LC trap branch with the conventional LCL filter is proposed. The expressions for the resonant frequencies of the proposed line filter are derived and used in the design to selectively choose the values of the line filter components. The analysis and design methodology are also verified experimentally.

    KW - Voltage Source Convert (VSC)

    KW - Parallel

    KW - Interleaving

    KW - Filter Design

    KW - Trap filter

    KW - Discontinuous PWM

    KW - Wind power

    KW - Parallel inverters

    KW - wind turbine

    KW - wind energy systems

    KW - wind energy conversion system

    KW - harmonic filter design

    KW - harmonic filter

    KW - LCL filter

    KW - parallel interleaved inverters

    KW - parallel interleaved converters

    KW - High power converters

    KW - Phase-shifted carrier-based pulsewidth modulation (PSC-PWM)

    KW - circulating current

    KW - circulating current suppression

    KW - coupled inductor

    KW - inter phase transformer

    KW - inter cell transformer

    KW - High-order filter

    U2 - 10.1109/TPEL.2015.2394460

    DO - 10.1109/TPEL.2015.2394460

    M3 - Journal article

    VL - 30

    SP - 6775

    EP - 6790

    JO - I E E E Transactions on Power Electronics

    JF - I E E E Transactions on Power Electronics

    SN - 0885-8993

    IS - 12

    ER -