Improved weak grids synchronization unit for passivity enhancement of grid-connected inverter
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 …
connected inverter (GCI) caused by the synchronization unit with the phase-locked loop …
Constant-coupling-effect-based PLL for synchronization stability enhancement of grid-connected converter under weak grids
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 …
strengthened by increasing its bandwidth and then incur synchronization instability. This …
Feedforward frequency deviation control in PLL for fast inertial response of DFIG-based wind turbines
Inertial response is gradually becoming a mandatory requirement for wind turbine (WT)
integrated into power system. However, most inertia control strategies are implemented in …
integrated into power system. However, most inertia control strategies are implemented in …
Overview of SOGI-based single-phase phase-locked loops for grid synchronization under complex grid conditions
J Xu, H Qian, Y Hu, S Bian, S ** countries. However, large wind power plants (WPPs) are usually constructed in …
Analysis and Design of PLL Less Current Control for Weak Grid-Tied LCL-Type Voltage Source Converter
S Maganti, NP Padhy - IEEE Journal of Emerging and Selected …, 2021 - ieeexplore.ieee.org
For a weak grid-tied-type converter, the conventional current control interacts with a phase-
locked loop (PLL) through the voltage at the point of common coupling (PCC). Thus, the …
locked loop (PLL) through the voltage at the point of common coupling (PCC). Thus, the …
On transient instability mechanism of PLL-based VSC connected to a weak grid
P Hu, Z Chen, Y Yu, D Jiang - IEEE Transactions on Industrial …, 2022 - ieeexplore.ieee.org
This article analyzes the transient process of phase-locked loop (PLL) based grid-connected
voltage source converters (VSCs) under large disturbances by modeling the PLL dynamic …
voltage source converters (VSCs) under large disturbances by modeling the PLL dynamic …