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This paper presents a mitigation method to reduce the current oscillation in the DC-link. DC link distributes power to common connected converters. Unwanted current oscillation can be found in the DC-link thus reduce the stability and reliability of the electromobility system. The root cause for the current oscillation is analyzed and an effective damping circuit is proposed. The verification measurements...
By utilizing next-gen wide band-gap (WBG) devices, such as GaN and SiC, at high switching frequency in a single-phase Quasi-Z-Source PV inverter (qZSI), the impedance network can be significantly reduced. Although, the reduced qZS impedance network will decrease cost and improved power density, it will also result in frequency resonance that will introduce oscillations in the capacitor voltage and...
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