Abstract
This paper deals with simple harmonics compensation using the constant DC-capacitor voltage-control (CDCVC)-based strategy of an active power-line conditioner (APLC) with a four-leg inverter in three-phase four-wire distribution feeders (TPFWDFs). The basic principle of the CDCVC-based strategy is precisely discussed. Instantaneous active power flow theoretically demonstrates that the CDCVC-based strategy attains sinusoidal and balanced source-side currents at a power factor (PF) of unity. Digital computer simulation with PSIM software is carried out to verify the validity and excellent practicability of the proposed CDCVC-based strategy of the four-leg APLC. A reduced-scale prototype experimental-model is built and tested. Simulation and experimental results demonstrate that the CDCVC-based strategy of the APLC with the four-leg inverter achieves the sinusoidal and balanced source-side currents at a PF of unity.
Published Version
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