Results 41 to 50 of about 4,619,619 (241)

Dynamic Frequency Support from a DFIG-Based Wind Turbine Generator via Virtual Inertia Control

Applied Sciences, 2020
As the penetrated level of wind in power grids increases, the online system inertia becomes weak. Doubly-fed induction generator (DFIG)-based wind turbine generators (WTGs) are required to provide virtual inertia response to support system frequency. The
Dejian Yang, Enshu Jin, Jiahan You, Liang Hua   +3 more
doaj   +1 more source

Virtual inertia based hierarchical control scheme for distributed generations considering communication delay

Frontiers in Energy Research, 2023
The virtual inertia technology of DGs (Distributed Generations) can provide inertia and damping support for the power system by imitating the traditional synchronous machine. However, the inherent delay problems around the communication and process links
Chang Zhou, Chang Zhou, Yingqi Liao, Kaifeng Zhang, Xiaohui Xu, Jiaqi Liao   +5 more
doaj   +1 more source

Adaptive Virtual Synchronous Generator Modulation Strategy Based on Moment of Inertia, Damping Coefficient and Virtual Impedance [PDF]

, 2022
The technology of virtual synchronous generator improves the limitations of inverter control strategy and enhances the acceptance of new energy generation in traditional power system, and yet it greatly affects the frequency dynamic regulation ability of
Ge, Shengsheng, Zhang, Jiawen
core   +1 more source

Quantitative Evaluation Method for Effective Support Capability of Wind Turbine Virtual Inertia

Shanghai Jiaotong Daxue xuebao
Virtual inertia provided by wind turbines can effectively improve the inertia level of power systems. However, the quantitative evaluation of the effective support capability of the virtual inertia of wind turbine needs further studies.
LI Dongdong, LIU Di, XU Bo, DING Haoyin, LIU Jiachen
doaj   +1 more source

Stability improvement of microgrids under dynamic load conditions: A new adaptive virtual synchronous generator based virtual inertia control approach [PDF]

The virtual synchronous generator (VSG) exhibits prominent features such as communication-less control in microgrids due to its virtual inertia support.
Md Asaduzzaman Shobug, Lu, J, Shobug, MA, Fuwen Yang, Junwei Lu, Yang, F   +5 more
core   +1 more source

An adaptative control strategy for interfacing converter of hybrid microgrid based on improved virtual synchronous generator

IET Renewable Power Generation, 2022
Inertial support for hybrid AC/DC microgrid systems is provided by the virtual synchronous generator (VSG). However, the fast performance of the system is neglected while enhancing the stability of the system. To address this problem, an adaptive virtual
Liang Zhang, Xuesong Wang, Zhe Zhang, Ying Cui, Lyu Ling, Guowei Cai   +5 more
doaj   +1 more source

Inertia estimation of new energy power system with virtual inertia response of wind power

电力工程技术, 2023
The accurate estimation of inertia is the premise of analyzing the security and stability of the system frequency, but the existing methods can not quantitatively evaluate the effect of virtual inertia on the equivalent inertia of the power system.
LI Shichun, SONG Qiushuang, XUE Zhenyao, DENG Rui   +3 more
doaj   +1 more source

A Virtual Inertia Control Strategy for DC Microgrids Analogized With Virtual Synchronous Machines [PDF]

IEEE Transactions on Industrial Electronics, 2017
In a DC microgrid (DC-MG), the dc bus voltage is vulnerable to power fluctuation derived from the intermittent distributed energy or local loads variation. In this paper, a virtual inertia control strategy for DC-MG through bidirectional grid-connected converters (BGCs) analogized with virtual synchronous machine (VSM) is proposed to enhance the ...
Wenhua Wu 0001, Yandong Chen 0001, An Luo, Leming Zhou, Xiaoping Zhou, Ling Yang 0001, Yanting Dong, Josep M. Guerrero   +7 more
openaire   +2 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 more
wiley   +1 more source