Results 11 to 20 of about 10,038 (265)

Comparative Study of the Transmission Capacity of Grid-Forming Converters and Grid-Following Converters

Energies, 2023
The development trend of high shares of renewables and power electronics has increased the demand for new energy converters in the power system, but there is a lack of systematic research on the stability of different types of converters when ...
Bojun Kong, Jian Zhu, Shengbo Wang, Xingmin Xu, Xiaokuan Jin, Junjie Yin, Jianhua Wang   +6 more
doaj   +2 more sources

Dynamic Interaction and Stability Analysis of Grid-following Converter Integrated Into Weak Grid

CSEE Journal of Power and Energy Systems
The grid-connected converter with grid-following control (GCC-GFL) for renewable energy sources has a risk of instability when integrated into the weak grid. This paper aims to investigate the dynamic interactions and stability characteristics of the GCC-
Shuang Li, Haijiao Wang, Yuehui Huang, Guoqing He, Chun Liu, Weisheng Wang   +5 more
doaj   +2 more sources

Power System Oscillations with Different Prevalence of Grid-Following and Grid-Forming Converters

Energies, 2022
The oscillatory behaviour of the power system is an aspect that is significantly affected by the increasing integration of converter-based generation sources.
Rossano Musca, Francisco Gonzalez-Longatt, Cesar A. Gallego Sánchez   +2 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

Influence of Load Dynamics on Converter-Dominated Isolated Power Systems

Applied Sciences, 2021
The operation of isolated power systems with 100% converter-based generation requires the integration of battery energy storage systems (BESS) using grid-forming-type power converters.
José Gouveia, Carlos L. Moreira, João A. Peças Lopes   +2 more
doaj   +1 more source

Stability Assessment of A Radial Grid With Power Converters

IEEE Open Journal of Power Electronics, 2022
The increase proportion of power converters causes stability problems in the radial grid. To address these issues, this paper firstly proposes a unified modeling procedure and applies it to two types of converters. Secondly, the impedance models are used
Xingqi Liu, Zhixiang Zou, Jiajun Yang, Jian Tang, Zhiren Liu, Giampaolo Buticchi, Zheng Wang, Ming Cheng   +7 more
doaj   +1 more source

Unified Virtual Oscillator Control for Grid-Forming and Grid-Following Converters [PDF]

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
A unified virtual oscillator controller (uVOC) is proposed, which enables a unified analysis, design, and implementation framework for both grid-forming (GFM) and grid-following (GFL) voltage source converters (VSCs). Oscillator based GFM controllers, such as dispatchable virtual oscillator control (dVOC), offer rigorous analytical framework with ...
M. A. Awal, Iqbal Husain
openaire   +2 more sources

Determination of Control Requirements to Impose on CIG for Ensuring Frequency Stability of Low Inertia Power Systems

IEEE Access, 2022
Power systems around the globe are undergoing a transformation characterized by a massive deployment of converter-interfaced generation (CIG) to effectively combat climate change.
Benjamin Vega, Claudia Rahmann, Ricardo Alvarez, Vijay Vittal   +3 more
doaj   +1 more source

Grid–Following DVI–Based Converter Operating in Weak Grids for Enhancing Frequency Stability [PDF]

IEEE Transactions on Power Delivery, 2022
Inertia requirement is the paramount challenge in future power systems with a significant share of renewable energy generators. A promising solution to this issue is applying Distributed Virtual Inertia (DVI) concept, i.e. releasing energy preserved in the dc-link capacitors of employed power converters in the grid following a frequency disturbance ...
Saeedian, Meysam, Sangrody, Reza, Shahparasti, Mahdi, Taheri, Shamsodin, Pouresmaeil, Edris   +5 more
openaire   +3 more sources

Tuning Method of a Grid-Following Converter for the Extremely-Weak-Grid Connection [PDF]

IEEE Transactions on Power Systems, 2022
This paper proves that a grid-following converter can stably connect to a weak grid even short-circuit ratio (SCR) is 1. Root instability causes of this grid-following control are identified including fast control response, insufficient damping, and slow voltage support.
Chuanyue Li, Sheng Wang, Jun Liang
openaire   +1 more source