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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, Andrés Tarrasó, Gregory N. Baltas, Leonardo Marin, Pedro Rodríguez   +4 more
openalex   +5 more sources

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

IET Renewable Power Generation, 2023
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   +2 more sources

Seamless Integration of Grid-Forming and Grid-Following Capabilities in a Single VSI Within a Unified Hybrid Control Framework Under Islanded Conditions

IEEE Access
To achieve seamless integration of grid-forming (GFM) and grid-following (GFL) capabilities in a single voltage-source inverter (VSI) under islanded conditions, this study introduces a unified hybrid control (UHC) scheme with minimal control parameters ...
Iman Lorzadeh, Omid Lorzadeh, Dimitar V. Bozalakov, Luc Dupre, Lieven Vandevelde   +4 more
doaj   +2 more sources

Oscillation Suppression of Grid-Following Converters by Grid-Forming Converters with Adaptive Droop Control [PDF]

Energies
The high penetration of renewable energy sources (RESs) and power electronics devices has led to a continuous decline in power system stability. Due to the instability of grid-following converters (GFLCs) in weak grids, the grid-forming converters (GFMCs)
Lifeng Qiu, Miaosong Gu, Zhongjiang Chen, Zhendong Du, Ligang Zhang, Wenrui Li, Jingyi Huang, Jingyang Fang   +7 more
doaj   +2 more sources

Sensitivity Analysis and Small-Signal Stability of Grid Following Converters

TecnoLógicas, 2022
This article presents a small-signal study, based on a sensitivity analysis, of a voltage source converter (VSC) operating as a grid-following device. This type of operation is standard for integrating distributed energy resources directly into a primary grid without considering the control over specific variables (e.g., voltage and frequency), thus ...
Simón Sepúlveda-García, Alejandro Garcés   +1 more
openalex   +5 more sources

Enhancing microgrid resilience through integrated grid-forming and grid-following inverter strategies for solar PV battery control and fault ride-through [PDF]

Scientific Reports
This study investigates the integration of a Grid-Forming (GFM) Battery Energy Storage System (BESS) to enhance the stability of microgrids in the presence of high renewable energy penetration. The proposed GFM inverter, combined with BESS, significantly
Md Ismail Hossain, Hasanur Zaman Anonto, Abu Shufian, Bishwajit Banik Pathik, Mohammad Abdul Mannan, Abdur Rashid, Parag Biswas   +6 more
doaj   +2 more sources

A Robust Phase-Lock-Loop for Grid-Following Converters

2024 IEEE 15th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
This work was supported by the National Natural Science Foundation of China under Grant 62173148 and 52377186.
Gengning Ying, Jun Zeng, Jie Song, Ni Liu, Minhai Wu, Eduardo Prieto‐Araujo, Junfeng Liu   +6 more
openalex   +4 more sources

Hierarchical optimal frequency support scheme of wind farm with both grid-forming and grid-following wind turbines

International Journal of Electrical Power & Energy Systems
Renewable energy sources such as wind power have grown exponentially in recent years. Conventional grid-following wind turbines (GFL-WTs) run the risk of oscillations under weak grids. To operate stably over a wide range of grid strength, the hybrid wind
Qihang Zong, Wei Yao, Hongyu Zhou, Yongxin Xiong, Wei Gan, Jinyu Wen   +5 more
doaj   +2 more sources

Revisiting Grid-Forming and Grid-Following Inverters: A Duality Theory [PDF]

IEEE Transactions on Power Systems, 2022
Power electronic converters for integrating renewable energy resources into power systems can be divided into grid-forming and grid-following inverters. They possess certain similarities, but several important differences, which means that the relationship between them is quite subtle and sometimes obscure.
Yitong Li, Yunjie Gu, Timothy C. Green
openaire   +5 more sources

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