Impedance characteristic analysis and stability improvement method for DFIG system within PLL bandwidth based on different reference frames

B Hu, H Nian, M Li, Y Liao, J Yang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The phase-locked loop (PLL) will have a negative impact on the stability of doubly fed
induction generators (DFIG) system under inductive weak grid. Some PLL-less methods …

[HTML][HTML] Comparison of small-signal admittance-based models of doubly-fed induction generators

J Pedra, L Sainz, L Monjo - International Journal of Electrical Power & …, 2023 - Elsevier
This paper reviews and compares the main doubly-fed induction generator (DFIG) models
for stability assessment in the literature by PSCAD/EMTDC simulation. The main contribution …

Comprehensive review of power system oscillations in large-scale power electronic-based renewable energy power plants

N Liu, H Wang, D Zhou, H Shi, Z Chen - Journal of Renewable and …, 2023 - pubs.aip.org
Recently, the large-scale integration of power electronic-based renewable energy power
plants has changed the operation and response mechanism of the power system, resulting …

Comprehensive modeling, analysis, and comparison of state-space and admittance models of PLL-based grid-following inverters considering different outer control …

W Zhou, N Mohammed, B Bahrani - IEEE Access, 2022 - ieeexplore.ieee.org
The phase-locked loop (PLL)-based grid-following inverters have been widely used as the
interface between renewable energy resources (eg, wind and solar power) and the utility …

Synchronization instability mechanism and damping enhancement control for DFIG-based wind turbine during grid faults

Y Yang, D Zhu, D Zhou, X Zou, J Hu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Doubly fed induction generator (DFIG)-based wind turbines (WTs) are prone to lose
synchronization with the power grid during weak grid faults, and the grid synchronization …

A fast sliding mode speed controller for PMSM based on new compound reaching law with improved sliding mode observer

X Guo, S Huang, K Lu, Y Peng… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
To reduce the convergence time and improve the antidisturbance capability of the
permanent magnet synchronous motor (PMSM) drivers, a fast sliding mode speed controller …

Perturbation amplitudes design method based on confidence interval evaluation for impedance measurement

M Li, H Nian - IEEE Transactions on Industrial Electronics, 2024 - ieeexplore.ieee.org
Due to the growing demand for broadband impedance modeling and stability analysis of
renewable power generation equipment, extensive research has been conducted on …

Impedance reshaping band coupling and broadband passivity enhancement for DFIG system

B Hu, H Nian, H Li, L Chen, S Sahoo… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Doubly fed induction generator (DFIG) based wind power systems incur a broadband
negative resistive characteristic, resulting in resonance risks when connected with weak grid …

A two-stage power distribution scheme of multiple wind farms participating in primary frequency regulation

C Zhao, D Sun, X Zhang, W Ke, B Hu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
With the increasing penetration rate of renewable energy power generation (RPG) in power
system, improving the frequency regulation ability of RPG has become a general trend. The …

Impedance Characteristic Analysis and Phase-locked Angle Feedforward-based Stability Improvement for LCC-HVDC in Sending AC Grid

H Li, B Hu, H Nian, Y Liao, L Xiong… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
With the increasing penetration of wind power, the line-commutated converter-based high-
voltage direct-current (LCC-HVDC) system in sending AC grid faces a potential risk of …