Detecting speed improvement and system stability enhancement for DC microgrids islanding detection based on impedance characteristic analysis

T Shi, H Chen, B Liu, S Fan, F Wang… - … on Power Electronics, 2022 - ieeexplore.ieee.org
Islanding detection is the essential basis for the safety and protection of dc microgrids. Due
to the advantages of rapid detection speed and small nondetection zone, the positive …

A gradient-descent optimization assisted gray-box impedance modeling of ev chargers

L Wang, Z Qin, P Bauer - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
Extracting an electric vehicle (EV) charger's input impedance with the analytical model
(white-box approach) or the frequency sweep (black-box approach) is limited by the …

Analysis and Stabilization of APF Systems Considering Dynamic of Nonlinear Loads

Y Li, H Yi, F Zhuo, X Jiang - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
The active power filter (APF) is effective for harmonic suppression. But it may cause
harmonic oscillation under certain source-load conditions. This article analyzes the …

Transient stability analysis of grid forming converters based on damping energy visualization and geometry approximation

J Lei, X Xiang, B Liu, W Li, X He - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The damping effect in grid forming (GFM) control is inherently large and thus has great
impact on its transient stability. Although qualitative understanding of damping has been …

Review on power quality issues in ev charging

Z Qin, L Wang, P Bauer - 2022 IEEE 20th International Power …, 2022 - ieeexplore.ieee.org
Electric vehicles (EVs) are playing a crucial role in achieving the carbon neutral goal. To
make the charging experience comparable with the refueling of the gasoline cars, more and …

The analysis and calculation of power angle dynamics in grid forming converter under large disturbances based on KBM asymptotic method

J Lei, X Xiang, W Li, X He - Ieee Transactions on Power …, 2022 - ieeexplore.ieee.org
Grid forming (GFM) control strategy has been increasingly used in grid-connected
converters to regulate system frequency and mimic the inertia of synchronous generator …

The Analysis and Calculation of Power Angle Transient Characteristics in VSG Control Using Parameter-Perturbation-Based Averaging Method

J Lei, X Xiang, Q Qu, W Li, X He - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
With the increasing penetration of power converters in modern power system, virtual
synchronous generator (VSG) control is considered to be a promising method due to its grid …

Python supervised co-simulation for a day-long harmonic evaluation of EV charging

L Wang, Z Qin, LB Larumbe… - Chinese Journal of …, 2021 - ieeexplore.ieee.org
To accurately simulate electric vehicle DC fast chargers'(DCFCs') harmonic emission, a
small time step, ie, typically smaller than 10 μs, is required owing to switching dynamics …

An Adaptive Stabilization Strategy for Harmonic Oscillation of SAPF Interacted With Nonlinear Load and Grid Impedance

X Jiang, H Yi, F Zhuo, Y Li - IEEE Transactions on Industrial …, 2023 - ieeexplore.ieee.org
A shunt active power filter (SAPF) can interact with the nonlinear load and grid impedance,
which may lead to unexpected harmonic oscillation. To describe the interaction, this article …

Harmonic oscillation analysis and stabilization method comparison of shunt active power filter in full compensation mode

Z Zhang, H Yi, F Zhuo, YG Li, X Jiang - IET Power Electronics, 2023 - Wiley Online Library
The harmonic compensation of SAPF (shunt active power filter) may trigger harmonic
oscillation due to the interaction with grid impedance and non‐linear loads, which distorts …