### Resumé

Originalsprog | Engelsk |
---|---|

Tidsskrift | I E E E Transactions on Power Electronics |

Vol/bind | 30 |

Udgave nummer | 12 |

Sider (fra-til) | 6775 - 6790 |

Antal sider | 16 |

ISSN | 0885-8993 |

DOI | |

Status | Udgivet - dec. 2015 |

### Fingerprint

### Emneord

### Citer dette

*I E E E Transactions on Power Electronics*,

*30*(12), 6775 - 6790. https://doi.org/10.1109/TPEL.2015.2394460

}

*I E E E Transactions on Power Electronics*, bind 30, nr. 12, s. 6775 - 6790. https://doi.org/10.1109/TPEL.2015.2394460

**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.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer 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 -