Impedance Modeling and Stability Improvement for High Frequency Isolated Power Conversion System Based on Dual Active Bridge

N Gao, L Wang, W Wu, L Zhu, S Sang - Available at SSRN 4691527 - papers.ssrn.com
Two-stage high frequency isolated power conversion system integrated with dual active
bridges is a preferable choice to serve as a bidirectional interface between the battery packs …

A Novel Method to Identify the" Trouble Maker" of Internal Instability in Multi-paralleled Inverters System

W Wu, Z Zhao, F Blaabjerg… - 2020 IEEE 9th …, 2020 - ieeexplore.ieee.org
Instability in multi-paralleled LCL-filtered grid-connected inverters system always presents
that each inverter is unstable due to the coupling of grid impedance. During stability analysis …

Design of Observer-Based SMC Controller for Three-Phase LCL-Filtered Grid-Connected Inverters with Less Sensors

H Li, W Wu, M Huang - 2019 IEEE 10th International …, 2019 - ieeexplore.ieee.org
Currently, Sliding Mode Control (SMC) controller based on global stability has been
successfully applied to three-phase LCL-flltered Grid-Connected Inverter (GCI). However, to …

Individual Channel Design-Based Modeling and Analysis of Three Phase Grid-Tied Inverter with Unbalanced Grid Impedance

W Wu, Y Li, J Liu, F Blaabjerg - 2019 10th International …, 2019 - ieeexplore.ieee.org
Three-phase grid-tied inverters are usually designed to operate in symmetric grid
impedance. In actual operations, due to the imbalanced loads, three-phase systems with …

Observer-Based Discrete Sliding Mode Control for LCL-Filtered Grid-Connected Inverters with Less Sensors

M Huang, H Li, W Wu… - 2018 IEEE International …, 2018 - ieeexplore.ieee.org
LCL-type grid-connected inverters have been widely used for distributed generation. There
is a stability issue caused by weak grid conditions, especially when the equivalent grid …