Due to the advantages of superior harmonics attenuation ability and reduced size, the LCL
filter has been widely adopted to interface between the inverter and the grid for improving …

The weak grids may be unstable due to the negative resistance behavior of the grid-
connected inverter (GCI) caused by the synchronization unit with the phase-locked loop …

The phase-locked loop (PLL)-caused couplings on the grid-connected converter (GCC) are
strengthened by increasing its bandwidth and then incur synchronization instability. This …

The integration of renewable energy sources (RESs) is a key objective for energy sector
decision-makers worldwide, aiming to establish renewable-rich future power grids …

Inertial response is gradually becoming a mandatory requirement for wind turbine (WT)
integrated into power system. However, most inertia control strategies are implemented in …

Synchronization is the key part to ensure the high performance of grid-connected systems.
Phase-locked loop (PLL) is one of the most popular synchronizations due to its simple …

A new type of subsynchronous oscillation (SSO) has been observed recently in double-fed
induction generator (DFIG)-based wind farm integrated via voltage source converter-based …

The impedance model is widely used for analyzing power converters. However, the output
impedance is an external representation of a converter system, ie, it compresses the entire …

When LCL-type converter is attached to weak grid, its current control and phase-locked loop
(PLL) will interact with each other, via the point of common coupling voltage. Unfortunately …

This article revisits the design of the current controller for grid-connected voltage-source
converters (VSCs), considering the dynamic impacts of the phase-locked loop (PLL), weak …