2021
DOI: 10.1109/access.2021.3130998
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Overmodulation Strategy Using DC-Link Shunt Resistor Inverters to Maintain Output Voltage Linearity

Abstract: To detect the three-phase current in the complex plane of a DC link shunt inverter, an algorithm for restoring the current is required. In this paper, a method of dividing the detection voltage and the compensation voltage to match the output voltage as much as possible to reduce the total harmonic distortion while restoring the current is proposed. In addition, an overmodulation algorithm for a 12-step output, which corresponds to the largest voltage in a DC link shunt inverter, is proposed, and a current rec… Show more

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“…In this situation, as the negative D-axis current increases very significantly, the magnitude of the phase current increases, meaning that the power loss due to copper loss increases [4,5]. If voltage utilization is increased through voltage overmodulation, the voltage margin can be obtained without increasing the phase current magnitude [6,7]. However, in this case, the phase current is distorted by harmonic components and power loss due to iron loss increases.…”
Section: Introductionmentioning
confidence: 99%
“…In this situation, as the negative D-axis current increases very significantly, the magnitude of the phase current increases, meaning that the power loss due to copper loss increases [4,5]. If voltage utilization is increased through voltage overmodulation, the voltage margin can be obtained without increasing the phase current magnitude [6,7]. However, in this case, the phase current is distorted by harmonic components and power loss due to iron loss increases.…”
Section: Introductionmentioning
confidence: 99%