Multilevel inverters (MLIs) are widely used in energy-conversion systems because they generate high-quality AC voltages with reduced harmonic distortion. However, existing MLIs often require numerous power devices, multiple DC sources, voltage sensors, or dedicated capacitor-balancing controllers, which increases both...
This article proposes a robust control strategy to minimize grid current harmonics in three-phase diode rectifier-fed permanent magnet synchronous motor (PMSM) drives featuring a small DC-link capacitance. First, a virtual impedance-based active damping scheme is introduced to emulate a series R-C damper. This suppress...
This paper presents a novel low-ripple AC–DC conversion architecture for Electric Vehicle (EV) or industrial load applications, integrating a Modified Soft Switching Power Factor Correction (MSS-PFC) boost converter stage with high-frequency galvanic isolation and synchronous rectification. Front-end PFC circuit integr...
Low-line-inductance electrolytic-capacitor-free drive systems are expected to further exploit the advantages of power density and cost. However, this design makes grid current harmonics more difficult to suppress and compromises system stability, particularly under unbalanced grid voltages. To address this issue, this...
The inherent capacitor voltage balancing and voltage-boosting abilities of switched-capacitor multilevel inverters make them ideal for a broad range of applications, but high inrush current remains a significant issue. A single stage switched-capacitor-boosted five-level inverter with a reduced component count is propo...
This study proposes a cascaded power conversion structure composed of a three-level DC-DC boost converter and a single-phase five-level T-type inverter to address the high performance and power quality demands of renewable energy systems. The integrated topology is designed to overcome the limitations of conventional t...
We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.
