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A Unified Virtual Impedance Reshaping Method for Inverters with Different Parameters

IEEE Journal of Emerging and Selected Topics in Power Electronics
Qiang Li, Pengju Sun, Jun Zhou, Meng Wang, Guangde Dong   +4 more
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A 22-to-50 GHz Bi-directional Beamforming CMOS Front-end with Distributed Impedance Reshaping Technique for 5G NR FR2 Applications

Radio Frequency Integrated Circuits Symposium
This paper presents an ultra-wideband beamforming front-end in 65nm CMOS for n257/n258/n259/n260/ n261/n262 5G FR2 applications. Multiple impedance reshaping techniques are introduced to enable a continuous ultra-wideband design.
Weiqi Zheng, Wei Deng, Junlong Gong, Haikun Jia, Dongze Li, Hongliang Wu, Baoyong Chi   +6 more
semanticscholar   +1 more source

AC-DC Coupling Hierarchical Control of DC Microgrid Based on Converter Impedance Reshaping

2025 5th International Conference on Intelligent Power and Systems (ICIPS)
This paper addresses the issues of slow dynamic response, insufficient power distribution accuracy, and weak disturbance rejection in traditional control strategies for bidirectional grid-connected converters (BGC) within dc microgrids.
Jinsong Li, Bo Yang, Qing Yang, Xiaoyu Li, Ze Song, Shuai Lu   +5 more
semanticscholar   +1 more source

Inverter admittance phase-reshaping strategy for enhancing its robustness to grid impedance

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
Harmonic resonances around the intersection frequency is triggered with the stability margin decreasing to zero and the system will be unstable with the stability margin reducing to be negative. For suppressing harmonics, the phase difference between the inverter admittance and grid admittance should be lower than 120° at their intersection.
Chen Zheng, Lin Zhou, Bin Li, Bao Xie, Qianjin Zhang   +4 more
openaire   +1 more source

A New Energy Field Station High-Frequency Resonance Suppression Strategy Based on STATCOM Improved Voltage Feed-Forward Impedance Reshaping

2025 8th International Conference on Energy, Electrical and Power Engineering (CEEPE)
With the access of large-scale power electronic equipment, the complex high-frequency resonance problems faced by new energy power systems cannot be ignored.
Chuan Wang, Jinyu Wang, Haoran Wang, Jingjing Huang, Yi Rong, Junyi Sheng   +5 more
semanticscholar   +1 more source

Adaptive Harmonic Impedance Reshaping Control Strategy Based on a Consensus Algorithm for Harmonic Sharing and Power Quality Improvement in Microgrids With Complex Feeder Networks

IEEE Transactions on Smart Grid, 2022
In islanded microgrids with complex feeder networks, distributed generation units (DGs) and loads can be freely connected to any node, leading to changes in the feeder impedance between nodes and the microgrid structure.
Zili Wang, Yandong Chen, Xueping Li, Yuancan Xu, Wenhua Wu, S. Liao, Haining Wang, Shixiang Cao   +7 more
semanticscholar   +1 more source

Structural Impedance Reshaping Strategy for Suppressing Interactive Instability in Parallel Multi-Hybrid Control Converters System

2025 5th International Conference on New Energy and Power Engineering (ICNEPE)
The Hybrid Control Converter (HCC) technology integrates the merits of Grid-Following (GFL) and Grid-Forming (GFM) control, presenting a highly promising solution for power electronics dominated power systems.
Lei Du, Xing Zhang, Xiangdui Zhan, Shuhong Li, Zixiang Sun, Zhuang Yuan   +5 more
semanticscholar   +1 more source

The Control Strategy for the Grid-Connected Inverter Through Impedance Reshaping in q-Axis and its Stability Analysis Under a Weak Grid

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
The grid-connected inverter is the vital energy conversion device in renewable energy power generation. With the increasing installed capacity of renewable energy, the grid presents characteristics of weak grids with large grid impedance. In general, the
Ming Li, Xing Zhang, Zixuan Guo, Jilei Wang, Yang Wang, Fei Li, Wei Zhao   +6 more
semanticscholar   +1 more source

Impedance Reshaping Control Method to Improve Weak Grid Stability of Grid-Connected Inverters

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 2020
Under weak grid conditions, the grid impedance and phase-locked loop (PLL) affects the robust stability of grid-connected inverters, leading to harmonic resonance, or even instability in the system. In this paper, a impedance remodeling control method is proposed to enhance the stability of grid-connected inverters with high grid impedance.
Jiayuan Gao, Chunming Tu, Qi Guo, Fan Xiao, Fei Jiang, Baihua Lu   +5 more
openaire   +1 more source

Sub-/Super-Synchronous Resonance Mitigation Method Based on Impedance Reshaping for Grid-Tied Black-Box Converters

2023 6th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2023
Impedance reshaping effectively solves the sub-/super-synchronous resonance (SSR) problem of grid-tied converters. However, such a method requires a white-box model, i.e., the control model and parameters of converters are known, which is difficult to ...
Tao Zhang, Songhao Yang, Hongyue Ma, Z. Hao   +3 more
semanticscholar   +1 more source