Results 41 to 50 of about 516 (148)
The increasing integration of renewable energy sources influences the power grid, resulting in a reduction in the traditional inertia supplied by synchronous generators.
M. Chethan, Ravi Kuppan
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Low‐Frequency Oscillation Suppression Strategy Based on NPOD‐SVC‐VSG Grid‐Connected System
ABSTRACT The power control loop in a virtual synchronous generator (VSG) exhibits inherently insufficient damping, making it prone to low‐frequency oscillation (LFO) under disturbances. Moreover, the dynamic coupling between active and reactive power can induce unnecessary reactive power fluctuations during active power transfer.
Haixin Wang +8 more
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This study develops a fractional‐order sequence impedance model for grid‐connected virtual synchronous generators, incorporating realistic broadband characteristics of inductive and capacitive components. Utilising harmonic linearisation and the generalised Nyquist criterion, we demonstrate that optimised fractional‐order models significantly enhance ...
Shuohe Wang +4 more
wiley +1 more source
In this study, virtual excitation emulation (VEE) is proposed along with the virtual inertia emulation (VIE) for a virtual synchronous generator (VSG) in a standalone microgrid to improve the AC voltage and frequency profile through the control of power ...
Soumya Samanta +3 more
doaj +1 more source
Virtual Synchronous Generator (VSG)-based grid-forming converters (GFC) increasingly serve as interfaces between renewable energy resources and the power grids with high penetration. Although the emulation of the characteristics of Synchronous Generator (
Feng Ji, Zhuang Xu
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This paper reviews the common grid‐following (GFL) and grid‐forming (GFM) control principles, technical characteristics, and the limitations of their medium‐voltage direct current (MVDC) applications. In addition, typical switching strategies for GFL and GFM are introduced and analysed. Finally, the applications of MVDC adopting GFL, MVDC adopting GFM,
Xiaoyang Wang +5 more
wiley +1 more source
Frequency Stability Analysis of Grid-Forming PMSG Based on Virtual Synchronous Control
A small-signal model of a virtual synchronous generator (VSG) control system for wind turbines, which considers the rotor speed regulation characteristics, has been established in this paper. Additionally, the damping torque coefficient expression of the
Qingtian Meng +2 more
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This paper builds an admittance model for a DFIG‐STATCOM parallel system. Based on the system, the paper provides a method to optimise the control of the STATCOM, which aims to increase the performance of the system during symmetrical faults .
Wenhao Du +5 more
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This study investigates the transient stability of grid‐forming converters (GFMs) in converter‐based grids (CBGs) without main grid support, with emphasis on the impact of current‐limiting control on the stability region. Unlike conventional Lyapunov‐based approaches, which are difficult to construct and extend to new controllers, we propose a Port ...
Yiwen Fan +4 more
wiley +1 more source
This paper discusses the development of a Virtual Synchronous Generator utilizing a Modular Multilevel Converter. The control system employs an internal simulation of the electromechanical swing equation to replicate the inertia and damping ...
Chethan M․, Ravi K
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