Editorial 2021: Forward Together During a year when the only thing most of us seemed able to plan on were our plans changing, IEEE TRANSACTIONS ON POWER ELECTRONICS (TPEL) has continued without pause. Authors, reviewers, and editors have all pushed forward. While we all did our best to work from home, we submitted papers, we […]
Successive-Approximation-Based Virtual Impedance Tuning Method for Accurate Reactive Power Sharing in Islanded Microgrids Due to the mismatched line impedances in islanded microgrids, distributed generation units with conventional droop tend to have barely satisfactory reactive power sharing accuracy. To handle this problem, this article proposes a virtual impedance tuning method based on successive approximation to accurately […]
Measuring and Separating Conducted Three-Wire Emissions From a Fault-Tolerant, NPC Propulsion Inverter With a Split-Battery Using Hardware Separators Based on HF Transformers Conducted emissions on the traction battery’s power cables in EVs must be limited to avoid unwanted electromagnetic interference (EMI). When designing an EMI filter, it is advantageous to have information of the common […]
Gallium-Nitride (GaN) transistor suits for high switching frequency condition to build high power density converters. However, it suffers from crosstalk problem especially in bridge-structure applications, that is, the fast voltage changing of the switching node causes a positive or negative voltage spike on the gate-source voltage of GaN transistor, which results in false turn-on and […]
The wide adoption of a new type of electric trains results in multiple frequency-scale instability problems, such as low-frequency oscillation (LFO), harmonic resonance, and harmonic instability. Among them, LFO has been commonly reported at electric railway depots with multiple-energized electric trains around the whole world, thus attracting widespread research attention. LFOs cause adverse effects on […]
Extended Range Bridgeless PFC Converter With High-Voltage DC Bus and Small Inductor Utility power lines voltage levels vary in different geographical locations, ranging from 208 to 480 V rms . Power factor correction (PFC) converters are typically designed for a particular input voltage and do not accept a wide range of line voltages. This results […]