Harmonic compensation analysis in offshore wind power plants using hybrid filters

Khairul Nisak Binti Md Hasan, Kalle Rauma, Alvaro Luna, J. Ignacio Candela, Pedro Rodriguez

    Research output: Contribution to journalArticleScientificpeer-review

    53 Citations (Scopus)


    The harmful effects of harmonics are an important issue in wind power plants (WPPs), especially in offshore applications. In offshore WPPs, the wind turbines are linked to the network through high-power converters that produce harmonics at relative low frequencies. Moreover, in the network of a WPP, the propagation of noncharacteristic harmonics and the effect of resonance contribute as well in boosting the harmonic distortion. In this paper, a solution for compensating the harmonics in a WPP by means of using hybrid filters is proposed. In this paper, not only the filtering solution is tested, but also a method for finding the best place where to connect the filter, based on a modal analysis or a harmonic modal resonance analysis, is implemented. The proposed solution has been tested by considering the model of a real 400-MW offshore WPP as the study case. As it will be shown, the hybrid filter is capable of damping the resonances in the plant, while the analysis conducted permits us to optimize its location in the plant.

    Original languageEnglish
    Article number6636033
    Pages (from-to)2050-2060
    Number of pages11
    JournalIEEE Transactions on Industry Applications
    Issue number3
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed


    • Harmonic filter
    • harmonics
    • hybrid filter
    • modal resonance analysis
    • participation factor
    • resonance
    • resonance damping
    • wind power plant


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