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Harmonic resonance problems can be aroused in the industrial power system in the presence of both nonlinear loads and shunt capacitors. This paper investigates the harmonic resonance problem by case-studying of a copper smelting plant low voltage power distribution system. A flexible selective harmonic compensation and resonance damping algorithm for shunt active power filter (SAPF) is proposed to...
Due to nonlinear loads and shunt power-factor-correction capacitor in power distribution system, harmonic distortion and harmonic resonance could be caused, which would seriously deteriorate the power quality. Shunt active power filters (SAPFs) only compensate the harmonic currents or suppress harmonic resonance, which may not be sufficient to meet a good power quality. This paper investigates harmonic...
This paper concentrates on a new high-order output filter, named LLCL filter, and its application issues on the three-phase three-wire shunt active power filter (SAPF). The LLCL topology is constructed by replacing the capacitor of the traditional LCL filter with an LC branch that resonant at the switching frequency. The SAPF with an LLCL filter exhibits excellent switching frequency harmonic attenuation...
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