With the substantive increase in the proportion of voltage-source converter (VSC)-based
equipment, traditional power systems that primarily constituted of synchronous generators …

The future of power systems is moving towards a greater use of renewable energy sources
and a higher proportion of power electronic devices. However, this has led to an increase in …

Inverter-based resources (IBRs) possess dynamics that are significantly different from those
of synchronous-generator-based sources and as IBR penetrations grow the dynamics of …

The large-scale integration of power electronic based systems poses new challenges to the
stability and power quality of modern power grids. The wide timescale and frequency …

The Grid-connected inverter (GCI) often operates in the weak grid with asymmetrical grid
impedance due to the unbalanced and single-phase loads. However, the time-periodic …

The small-signal impedance modeling of a modular multilevel converter (MMC) is the key for
analyzing resonance and stability of MMC-based power electronic systems. The MMC is a …

This paper presents a modular approach for the impedance modeling of three-phase
voltage source converters (VSC) by representing the VSC dynamics using three-by-three …

An increasing number of power-electronic-based distributed generation systems and loads
generate not only characteristic harmonics but also unexpected harmonics. Several …

Conventionally, standard proportional and integral (PI) controllers with constant PI gains are
commonly used for the dc-link voltage control of single-phase grid-connected converters …

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 …