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The application of underground cables and shunt capacitor banks may introduce power distribution system resonances. In this paper, the impacts of voltage-controlled and current-controlled distributed generation (DG) units to microgrid resonance propagation are compared. It can be seen that a conventional voltage-controlled DG unit with an LC filter has a short-circuit feature at the selected harmonic...
Harmonic resonances of the distribution power system have become a significant issue in recent years, due to extensive use of either nonlinear loadings or inverter-based distributed generation systems. This paper presents resonant current regulation to enhance the damping capability of the discrete frequency tuning active filter for suppressing power system harmonics. The resonant current regulator,...
Severe harmonic distortion, due to unintentional series or parallel resonance of the passive filters or power factor correction capacitors, is a significant issue in the industrial power system. The transformerless hybrid active filter, which operates at reduced kVA rating and switching ripples, is a promising filtering solution in high-power applications. This paper presents resonant current regulation...
Harmonic voltage amplification, due to unintentional series or parallel resonance of power factor correction capacitors, is a significant issue in the industrial power system. Conventional active filters intended to compensate the harmonic current producing by nonlinear loads would not be an effective solution in this scenario, and the harmonic voltage may still be significant. This paper proposes...
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