Resonant current regulation for transformerless hybrid active filter to suppress harmonic resonances in industrial power systems

Lee, Tzung-Lin; Wang, Yen-Ching; Guerrero, Josep M.

doi:10.1109/apec.2010.5433644

Cited by 3 publications

(2 citation statements)

References 18 publications

(14 reference statements)

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“…The filtering performance of the HAFU has been addressed in [24] by developing equivalent circuit models, in which both harmonic impedance and harmonic amplification are considered. The frequency characteristic of the passive filter is changed by the proposed harmonic conductance in order to avoid unintentional resonances.…”

Section: Analysis Of Filtering Performancementioning

confidence: 99%

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Hybrid Active Filter With Variable Conductance for Harmonic Resonance Suppression in Industrial Power Systems

Lee

Wang

Li³

et al. 2015

IEEE Trans. Ind. Electron.

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122

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Abstract-Unintentional series and/or parallel resonances, due to the tuned passive filter and the line inductance, may result in severe harmonic distortion in the industrial power system. This paper presents a hybrid active filter to suppress harmonic resonance and reduce harmonic distortion as well. The proposed hybrid filter is operated as variable harmonic conductance according to the voltage total harmonic distortion, so harmonic distortion can be reduced to an acceptable level in response to load change or parameter variation of power system. Since the hybrid filter is composed of a seventh-tuned passive filter and an active filter in series connection, both dc voltage and kVA rating of the active filter are dramatically decreased compared with the pure shunt active filter. In real application, this feature is very attractive since the active power filter with fully power electronics is very expensive. A reasonable trade-off between filtering performances and cost is to use the hybrid active filter. Design consideration are presented and experimental results are provided to validate effectiveness of the proposed method. Furthermore, this paper discusses filtering performances on line impedance, line resistance, voltage unbalance and capacitive filters.

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Section: Analysis Of Filtering Performancementioning

confidence: 99%

“…In previous work, the authors have presented a transformerless hybrid active filter to suppress harmonic resonances in the industrial power system in [23], [24]. The hybrid filter is constructed by a seventh-tuned passive filter and an active filter in series connection.…”

Section: Introductionmentioning

confidence: 99%