Results 31 to 40 of about 8,672 (255)

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   +1 more source

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

Virtual inertia analysis of photovoltaic energy storage systems based on reduced-order model

Frontiers in Energy Research, 2023
The problem of non-ideal inertia of the photovoltaic energy storage system (PVESS) may occur due to unreasonable voltage control parameters. In response to this issue, this paper establishes an equivalent reduced-order model (EROM) for PVESS.
Guanyang Li, Junfei Wang, Xuanlin Wang, Li Zhang   +3 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System

Energies, 2023
This paper proposes a novel virtual inertia control strategy for distributed power systems with high penetration of renewable energy sources. The strategy uses a quasi-Z-source power converter to emulate the inertia response of a synchronous generator by
Yitao Liu, Hongle Chen, Runqiu Fang
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Neural Network-Based Coordinated Virtual Inertia Allocation Method for Multi-Region Distribution Systems

Applied Sciences
Virtual inertia is a measure of the capability of distributed sources and loads within power supply units to resist system frequency variations through additional control strategies applied to converters.
Heng Liu, Jingtao Zhao, Zhi Wu, Shu Zheng   +3 more
doaj   +1 more source

An Efficient Adaptive Virtual Inertia Controller for Virtual Synchronous Generators [PDF]

, 2020
This paper proposes an efficient adaptive strategy to control virtual inertia of virtual synchronous generators. This adaptive virtual inertia can provide low frequency oscillation damping and simultaneously improve primary frequency control in power systems.
Mostafa Malekpour, Arash Kiyoumarsi, Mehdi Gholipour   +2 more
openaire   +1 more source