Results 41 to 50 of about 30,487 (300)

Frequency, Phase, and Magnitude Difference Locked-Loop Based Linear Synchronization Scheme for Islanded Inverters and Microgrids

IEEE Access, 2023
In recent years, integrating renewable energy sources (RESs) has achieved significant attention due to the growing demand for sustainable energy solutions.
Ozhan Atmaca, Murat Karabacak
doaj   +1 more source

Review of synchronization control methods for grid-forming VSC-HVDC transmission systems

Zhejiang dianli
Focusing on the synchronization control of grid-forming flexible HVDC （high-voltage direct current） transmission systems， this paper first analyzes the requirements for grid-forming control in flexible HVDC systems and reviews the current application ...
LI Lanfang, WANG Ziying, LI Qinan, ZHANG Fan, ZHANG Xiaolin, BAI Xue   +5 more
doaj   +1 more source

Enhanced dynamic support strategies of grid-forming-PMSG based on DC-voltagesynchronization: Frequency and Q support perspective

International Journal of Electrical Power & Energy Systems
The DC-Voltage Synchronization based Grid-Forming PMSG has voltage source characteristics, e.g. frequency and reactive power support function, however, the support capability is limited, and the regulation potential is not fully utilized.
Dejian Yang, Tongyu Hu, Taiying Zheng, Minhui Qian, Chaoquan Li, Zhijie Cao, Gangui Yan   +6 more
doaj   +1 more source

Synchronization stability of lossy and uncertain power grids [PDF]

2015 American Control Conference (ACC), 2015
Direct energy methods have been extensively developed for the transient stability analysis and contingency screening of power grids. However, there is no analytical energy functions proposed for power grids with losses, which are normal in practice. This paper applies the recently introduced Lyapunov Functions Family approach to the certification of ...
Vu, Thanh Long, Turitsyn, Konstantin
openaire   +3 more sources

SMART GRIDS – GENERAL REVIEW OF SYNCHRONIZATION TECHNIQUES

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2013
This paper deals with crucial aspect of synchronization in modern power grids. It presents the concept of intelligent networks (“smart grids”), as the future of today’s grid infrastructure.
Piotr Lipnicki
doaj   +1 more source

Design of a High Performance Phase-Locked Loop With DC Offset Rejection Capability Under Adverse Grid Condition

IEEE Access, 2020
In the new energy grid-connected power generation system, accurately extracting the grid synchronization signals such as the frequency, phase and amplitude of the grid voltage is the basis for effective control.
Nanmu Hui, Yingying Feng, Xiaowei Han
doaj   +1 more source

Distributed control of a fault tolerant modular multilevel inverter for direct-drive wind turbine grid interfacing

, 2012
Modular generator and converter topologies are being pursued for large offshore wind turbines to achieve fault tolerance and high reliability. A centralized controller presents a single critical point of failure which has prevented a truly modular and ...
Finney, Stephen J., Parker, Max, Ran, Li, Finney, Stephen, Parker, Max A.   +4 more
core   +1 more source

A Novel Pre-Synchronization Control for Grid Connection of Virtual Synchronous Generator

Elektronika ir Elektrotechnika, 2020
The virtual synchronous generator (VSG) introduces rotational inertia and damping through the droop control to take part in frequency regulation of the grid. By building the VSG model, the VSG controller, including both the frequency controller and the excitation controller, are analysed and designed.
Chen, Xuhai, Zhang, Yiwang, Dong, Jiqing, Mao, Xingkui, Chen, Jiaqiao, Wen, Buyin, Zhang, Zhe; id_orcid 0000-0001-8407-3167   +6 more
openaire   +4 more sources

Stability analysis of hybrid synchronization controller based grid forming control

Energy Reports, 2023
Synchronization units are vital for the stable operation of grid-tied converters in generation and transmission. There are two main synchronization units, i.e., phase-locked loop (PLL) and power synchronization controller (PSC), with the corresponding ...
Rongcai Pan, Shan Liu, Huaiguang Gu, Dong Liu, Lin Zhu, Ersong Chen   +5 more
doaj   +1 more source

Synchronization stability of power-grid-tied converters

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2023
Synchronization stability is one of central problems in power systems, and it is becoming much more complicated with the high penetration of renewable energy and power electronics devices. In this paper, we review recent work by several nonlinear models for renewable-dominated power systems in terms of multiple timescales, in particular, grid-tied ...
Rui Ma, Yayao Zhang, Ziqian Yang, Jürgen Kurths, Meng Zhan, Congping Lin   +5 more
openaire   +4 more sources