Results 11 to 20 of about 1,752,354 (327)

Control interaction analysis of hybrid system with grid-following and grid-forming inverters based on admittance decomposition

International Journal of Electrical Power & Energy Systems
In high renewable penetrated power systems, both grid-forming (GFL) and grid-following (GFM) inverters play an important role in maintaining the system stability and economic operation.
Yang Wang, Liang Ruan, Mengling Yang, Xianyong Xiao, Song Chen, Oriol Gomis-Bellmunt   +5 more
doaj   +3 more sources

Passivity-Based Optimal State-Feedback Control for LCL-Filtered Grid-Following Converter [PDF]

IEEE Transactions on Power Electronics
As the grid incorporates more voltage-source converters (VSCs), the stability issues arising from VSC-grid interactions escalate. While passivity theory offers a promising solution, existing passivity-based controller designs primarily rely on heuristic methods, which do not advance stability beyond achieving passivity.
Chao Gao, Shan He, Peiji Song, Pooya Davari, Ka Nang Leung, Poh Chiang Loh, Frede Blaabjerg   +6 more
openaire   +3 more sources

Enhanced Operation of Grid-Following VSCs With Alternating-Voltage Control in Ultraweak Grids

IEEE Journal of Emerging and Selected Topics in Power Electronics
Alternating-voltage control (AVC) is preferred in weak grids to enhance voltage stiffness and active power transfer capability for grid-following voltage source converters (VSCs) with a phase-locked loop (PLL). However, asymmetric dq coupling of control loops is intensified with the AVC due to reactive currents, which leads to undesired interactions ...
Wei Wu, Zhiqing Yang, Shan He, Helong Li, Kai Zhang, Lijian Ding   +5 more
openaire   +3 more sources

On Stability of PQ-Controlled Grid-Following and Droop-Control Grid-Forming Inverters

2022 IEEE Energy Conversion Congress and Exposition (ECCE), 2022
Tareq Hossen, Behrooz Mirafzal
openaire   +3 more sources

Impedance-Based Criterion Design for Grid-Following/Grid-Forming Switching Control of Wind Generation System [PDF]

Energies
As wind farms connect with power grids via long-distance transmission lines and multiple transformers, the resulting networks exhibit inherently weak and fluctuating grid strength—subject to dynamic variations from external disturbances like generation ...
Sijia Huang, Zhenbin Zhang, Zhihao Chen, Huimin Huang, Zhen Li   +4 more
doaj   +2 more sources

External Inertia Emulation Controller for Grid-Following Power Converter [PDF]

IEEE Transactions on Industry Applications, 2021
The advent of renewable energy has posed difficulties in the operation of power systems whose net inertia is becoming critically low. To face such challenges, grid-forming power has been one of the potential solutions pursued by the industry and research community. Although promising, grid-forming power converters are still immature for mass deployment
Ngoc-Bao Lai, Andres Tarraso, Gregory N. Baltas, Leonardo V. Marin Arevalo, Pedro Rodriguez   +4 more
openaire   +3 more sources

Analysis of transient characteristics and fault ride-through control of hybrid grid-tied converters with grid-following and grid-forming

Frontiers in Energy Research
When the Grid-Following (GFL) and the Grid-Forming (GFM) converters are hybrid-connected to the grid, they are coupled through the grid impedance. During grid faults, the transient characteristics of the two converters become more complex due to this ...
Baoyu Zhai, Shuchao Liang, Zhi Xu, Fengyi Deng, Junru Chen, Haiyang Wu   +5 more
doaj   +3 more sources

Research on Synchronization Control of Distributed Generation Based on Second-Order Unified Model

Zhongguo dianli, 2023
The existing grid connection controls of distributed generation inverters are mainly classified into the grid-following (GFL) control and the grid-forming (GFM) control.
Yan HUANG, Yingpeng HAO, Huixian WANG, Longye ZHENG, Kaizhe ZHANG, Yinliang XU   +5 more
doaj   +1 more source

Modelling of grid-following current-controlled VSC

Journal of Physics: Conference Series, 2023
Abstract The voltage sourced converter (VSC) is a basic element in the grid connected solar-PV system that used in converting the DC-generated power from the solar-PV to AC power compatible with the utility grid. In this paper, a grid connected, three phase, two level VSC model and its control technique are simulated.
E Saad, S Helmy, Y Elkoteshy, U Abouzayed   +3 more
openaire   +1 more source

Grid-Forming and Grid-Following Based Microgrid Inverters Control

Iraqi Journal for Electrical and Electronic Engineering, 2022
Microgrids (ℳ-grids) can be thought of as a small-scale electrical network comprised of a mix of Distributed Generation (DG) resources, storage devices, and a variety of load species. It provides communities with a stable, secure, and renewable energy supply in either off-grid (grid-forming) or on-grid (grid-following) mode.
Ali Jasim, Basil Jasim
openaire   +1 more source