| Title |
Consideration of Voltage Control Range Calculation and Its Impact in 3/2-Phase Switching Inverter for Short-Circuit Faults |
| Authors |
이재건(Jae-gun Lee) ; 김진식(Jin-sik Kim) ; 이현재(Hyun-jae Lee) ; 손진근(Jin-geun Shon) |
| DOI |
https://doi.org/10.5370/KIEE.2025.74.4.727 |
| Keywords |
Efficiency; Overmodulation; Power Factor; Power Quality; Renewable Energy Systems; Switching Inverter; Voltage Control |
| Abstract |
This study addresses power quality degradation issues caused by short-circuit faults in 3/2-phase switching inverters by estimating and applying an optimized voltage control range. The ripple effects, including voltage distortion, power factor reduction, and efficiency loss due to the reduction in maximum phase voltage during a short-circuit event, were analyzed using PSIM simulations.
Based on these analyses, the application of a voltage control range for the DC-link capacitor effectively reduced phase voltage waveform distortion, improved overmodulation issues, and maintained power factor and apparent power. Consequently, this study provides a solution to enhance the stability and reliability of renewable energy systems while maintaining power quality and maximizing energy efficiency. |