DC Bus Compensation for a Sinusoidal Voltage-Source Inverter With Wave-Shaping Control

Authors:
  • MTMatthew C. Trigg
    Matthew C. Trigg
  • CNChemmangot V. Nayar
    Chemmangot V. Nayar
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Abstract
This paper presents a study on the effects of different parameters on the dc bus voltage of a single-phase voltage-controlled voltage-source inverter (VCVSI) with conventional load-voltage root-mean-square (rms) feedback control and a wave-shaping controller (WSC). It is shown that the load-voltage rms feedback control and the WSC require compensation for the fluctuations in the dc bus voltage caused by the battery and lead-wire resistance and the lead-wire inductance. The dc-bus-voltage compensation is shown to provide performance improvements, including better load-voltage regulation and less load-voltage distortion. The mathematical modeling, computer simulations, and experimental results based on a 2-kVA single-phase full-bridge VCVSI are presented.

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