Results 51 to 60 of about 626 (151)

Frequency-Voltage Active Support Strategy for Hybrid Wind Farms Based on Grid-Following and Grid-Forming Hierarchical Subgroup Control

CSEE Journal of Power and Energy Systems
The GFL-GFM hybrid wind farm (HWF) combines the voltage source control advantages of grid-forming (GFM) wind turbines (WTs) with the current source control advantages of grid-following (GFL) wind turbines.
Haiyu Zhao, Qihang Zong, Hongyu Zhou, Wei Yao, Kangyi Sun, Yuqing Zhou, Jinyu Wen   +6 more
doaj   +1 more source

Grid‐forming converters in interconnected power systems: Requirements, testing aspects, and system impact

IET Renewable Power Generation
In this study, the integration of grid‐forming (GFM) converters in power systems is discussed in terms of both the fundamental aspects of system stability and the technical possibilities of converter‐based resources.
Soenke Rogalla, Philipp Ernst, Hendrik Lens, Thomas Schaupp, Christian Schöll, Roland Singer, Jakob Ungerland   +6 more
doaj   +1 more source

Coordinated Planning of Flexible Interconnection and Grid-Forming Energy Storage in Low-Voltage Distribution Networks Considering Off-Grid Operation

Energies
Severe weather events increasingly threaten the reliability of low-voltage distribution networks (LVDNs). Existing fault restoration strategies primarily focus on medium-voltage networks, leaving LVDNs highly vulnerable during prolonged grid outages.
Fengshun Jiao, Guoxing Wu, Jie Zhang, Chuyun She, Weijie Gao, Lei Shang, Fanghui Yin   +6 more
doaj   +1 more source

VSS-GFM: A Voltage-Source-Sustaining Grid-Forming Strategy for Seamless Operation Under Severe Disturbances

Grid-forming (GFM) control strategies face critical challenges in fault response, protection coordination, and grid code compliance. Conventional voltage-controlled GFM (VC-GFM) and current-controlled GFM (CC-GFM) each possess distinct advantages but individually fail to fully address these challenges. This paper systematically analyzes both VC-GFM and
Guoqing Gao, Shan He, Liang Huang, Qi Zhang, Frédéric Colas, Xavier Guillaud, Frede Blaabjerg   +6 more
openaire   +1 more source

Adaptive power and virtual resistance cooperation control strategy of VSG-based GFM converters for grid transient stability enhancement

Global Energy Interconnection
With the increasing penetration level of renewable energy sources (RES) interfaced with the grids by power electronic converters, the grid forming (GFM) control of converters is recognized as one of the promising solutions in dealing with challenges such
Zhang Wen, Liangzhong Yao, Fan Cheng, Shuai Liang, Junpeng Deng, Siyang Liao, Beilin Mao   +6 more
doaj   +1 more source

Non-Intrusive Battery-Backed Grid-Forming Configuration for Grid-Following Photovoltaic Plants Retrofit

Energies
Existing grid-connected photovoltaic (PV) systems with grid-following (GFL) control rely on phase-locked loop (PLL)-based grid synchronization, which may become unstable under weak grid conditions.
Fang Fang, Yinxiao Zhu, Yongheng Yang
doaj   +1 more source

Grid Forming Converters for Low Inertia Systems-Capabilities and Limitations: A Critical Review

IEEE Open Journal of the Industrial Electronics Society
The rapid integration of renewable energy sources into the power grid has resulted in the high utilization of power-electronics devices and operating power systems where inverter-based resources are dominated.
Qusay Salem, Bayan Bany Fawaz, Rafat Aljarrah, Mazaher Karimi   +3 more
doaj   +1 more source

Comparative Impedance Characteristic Analysis of Grid‐Following and Grid‐Forming Inverters

IET Renewable Power Generation
This paper comprehensively analyses the impedance characteristics of grid‐following (GFL) and grid‐forming (GFM) inverters at around synchronous frequency areas considering various operating and grid connection conditions and control settings.
Yonggang Zhang, Peter Unruh, Boris Fischer, Martin Braun   +3 more
doaj   +1 more source

Grid-Forming Inverter Integration for Resilient Distribution Networks: From Transmission Grid Support to Islanded Operation

Electricity
The progressive replacement of synchronous machines by inverter-based resources (IBRs) reduces system inertia and short-circuit strength, making power systems more vulnerable to frequency and voltage instabilities.
Mariajose Giraldo-Jaramillo, Carolina Tranchita   +1 more
doaj   +1 more source

Black-Start and Hot-Swap Performance Assessment and Improved Control Strategy for Grid-Forming VSC and CSC-Based PV Systems

IEEE Open Journal of Industry Applications
The grid-forming (GFM) control of voltage-source converter (VSC)-based photovoltaic (PV) systems has shown promise in supporting the grid frequency and inertia.
Md. Mizanur Rahman, Yasser Abdel-Rady I. Mohamed   +1 more
doaj   +1 more source