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Protective relays can mal-operate for transmission lines connected to doubly fed induction generator (DFIG) based large capacity wind farms (WFs). The performance of distance relays protecting such lines is investigated and a statistical…

Signal Processing · Electrical Eng. & Systems 2025-01-03 Pallav Kumar Bera , Vajendra Kumar , Samita Rani Pani , Om P. Malik

Wind turbine wakes negatively impact downwind turbines in wind farms reducing their global efficiency. The reduction of wake-turbine interactions by actuating control on yaw angles and induction factors is an active area of research. In…

Fluid Dynamics · Physics 2020-08-14 Carlo Cossu

Inverter-based storages are poised to play a prominent role in future power grids with massive renewable generation. Grid-forming inverters (GFMs) are emerging as a dominant technology with synchronous generators (SG)-like characteristics…

Systems and Control · Electrical Eng. & Systems 2024-10-22 Ramij Raja Hossain , Kaustav Chatterjee , Sai Pushpak Nandanoori , Soumya Kundu , Laurentiu Marinovici , Karan Kalsi , Diane Baldwin

Control structures have critical influences on converter-interfaced distributed generations (DG) under unbalanced conditions. Most of previous works focus on suppressing active power oscillations and ripples of DC bus voltage. In this…

Systems and Control · Computer Science 2018-08-23 Peng Jin , Yang Li , Guoqing Li , Zhe Chen , Xiaojuan Zhai

In autonomous microgrids frequency regulation (FR) is a critical issue, especially with a high level of penetration of the photovoltaic (PV) generation. In this study, a novel virtual synchronous generator (VSG) control for PV generation…

Systems and Control · Electrical Eng. & Systems 2021-07-13 Cheng Zhong , Huayi Li , Yang Zhou , Yueming Lv , Jikai Chen , Yang Li

The expansion of inverter-connected generation facilities (i.e. wind and photovoltaics) and the removal of conventional power plants is necessary to mitigate the impacts of climate change. Whereas conventional generation with large rotating…

Adaptation and Self-Organizing Systems · Physics 2020-01-20 Philipp C. Böttcher , Andreas Otto , Stefan Kettemann , Carsten Agert

Modern distribution grids are currently being challenged by frequent and sizable voltage fluctuations, due mainly to the increasing deployment of electric vehicles and renewable generators. Existing approaches to maintaining bus voltage…

Systems and Control · Computer Science 2019-12-05 Qiuling Yang , Gang Wang , Alireza Sadeghi , Georgios B. Giannakis , Jian Sun

A recent trend in control of power systems has sought to quantify the synchronization dynamics in terms of a global performance metric, compute it under very simplified assumptions, and use it to gain insight on the role of system…

Optimization and Control · Mathematics 2019-05-15 Fernando Paganini , Enrique Mallada

To enable power supply in rural areas and to exploit clean energy, fully renewable power systems consisting of cascaded run-of-the-river hydropower and volatile energies such as pv and wind are built around the world. In islanded operation…

Optimization and Control · Mathematics 2021-03-30 Yiwei Qiu , Jin Lin , Feng Liu , Ningyi Dai , Yonghua Song , Gang Chen , Lijie Ding

This paper presents a small-signal analysis of an islanded microgrid composed of two or more voltage source inverters connected in parallel. The primary control of each inverter is integrated through internal current and voltage loops using…

The phase-locked loop (PLL) used in the doubly fed induction generator (DFIG) can cause frequency coupling phenomena, which will give negative resistance characteristics ofthe DFIG at low frequency, resulting in stability issues under weak…

Systems and Control · Electrical Eng. & Systems 2023-07-20 Xiaoling Xiong , Bochen Luo , Longcan Li , Ziming Sun , Frede Blaabjerg

With Europe dedicated to limiting climate change and greenhouse gas emissions, large shares of Renewable Energy Sources (RES) are being integrated in the national grids, phasing out conventional generation. The new challenges arising from…

Systems and Control · Electrical Eng. & Systems 2021-04-15 Andrea Tosatto , Georgios Misyris , Adrià Junyent-Ferré , Fei Teng , Spyros Chatzivasileiadis

This paper studies the joint device selection and power control scheme for wireless federated learning (FL), considering both the downlink and uplink communications between the parameter server (PS) and the terminal devices. In each round…

Information Theory · Computer Science 2022-05-20 Wei Guo , Ran Li , Chuan Huang , Xiaoqi Qin , Kaiming Shen , Wei Zhang

The large-scale integration of renewable generation directly affects the reliability of power grids. We investigate the problem of power balancing in a general renewable-integrated power grid with storage and flexible loads. We consider a…

Systems and Control · Computer Science 2016-06-06 Sun Sun , Min Dong , Ben Liang

We discuss the synchronization of coupled neurons which are modelled as FitzHugh-Nagumo systems. As smallest entity in a larger network, we focus on two diffusively coupled subsystems, which can be interpreted as two mutually interacting…

Chaotic Dynamics · Physics 2008-09-05 Philipp Hoevel , Markus A. Dahlem , Eckehard Schoell

Efficiency increase is seen as one of the main goals in any energy converting device. In this direction, the present study aims to demonstrate that large-scale wind turbines can still be improved in order to generate larger amounts of…

Fluid Dynamics · Physics 2024-07-31 Ahmad Nabhani , Navid M Tousi , Marti Coma , Gabriel Bugeda , Josep M Bergada

We investigate the synchronization dynamics of two coupled noise-driven FitzHugh-Nagumo systems, representing two neural populations. For certain choices of the noise intensities and coupling strength, we find cooperative stochastic…

Adaptation and Self-Organizing Systems · Physics 2025-07-29 Philipp Hövel , Sarang A. Shah , Markus A. Dahlem , Eckehard Schöll

Nowadays, power system inertia is changing as a consequence of replacing conventional units by renewable energy sources, mainly wind and PV power plants. This fact affects significantly the grid frequency response under power imbalances. As…

Systems and Control · Electrical Eng. & Systems 2020-05-06 A. Fernández-Guillamón , A. Vigueras-Rodríguez , A. Molina-García

In this paper, we deal with the power regulation of tethered-wing systems and demonstrate advantages of variable-pitch control in mitigating the dynamic mechanical loads and power fluctuations. The proposed scheme is based on a strategy…

Systems and Control · Electrical Eng. & Systems 2023-03-03 Mani Kakavand , Amin Nikoobin

Synchronous condensers (SCs) have been reported to improve the overall stability and short-circuit power of a power system. SCs are also being integrated into offshore wind power plants (WPPs) for the same reason. This paper, investigates…

Systems and Control · Electrical Eng. & Systems 2024-11-15 Sulav Ghimire , Kanakesh V. Kkuni , Emerson D. Guest , Kim H. Jensen , Guangya Yang