Results 31 to 40 of about 145,024 (283)

Process Monitoring and Part Program Optimization Using Virtual Machine Tools [PDF]

open access: yes한국정밀공학회지, 2022
A virtual machine tool, a computer simulation model of the machine motion and cutting process with a level of accuracy and consistency that can replace an accurate machine tool, is one of the critical digital transformation technologies in the ...
Chang-Ju Kim   +3 more
doaj   +1 more source

Small‐signal analysis of multiple virtual synchronous machines to enhance frequency stability of grid‐connected high renewables

open access: yesIET Generation, Transmission & Distribution, 2021
The virtual synchronous machine technology is considered as an important technique to effectively control the shortcomings of renewable energy‐based power electronics interfaces, providing backup inertia and regulating grid stability. Conventionally, the
Thongchart Kerdphol   +7 more
doaj   +1 more source

PARAMETER OPTIMIZATION OF A VIRTUAL SYNCHRONOUS MACHINE IN A MICROGRID [PDF]

open access: yesInternational Journal of Power and Energy Systems, 2016
17 pages, 5 ...
Dewenter, Timo   +5 more
openaire   +2 more sources

Virtual Friction Subjected to Communication Delays in a Microgrid of Virtual Synchronous Machines

open access: yesIEEE Journal of Emerging and Selected Topics in Power Electronics, 2023
<p><em>Paper accepted for publication in JESTPE</em></p> <p><em>https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6245517</em></p> <p>Virtual synchronous machines (VSMs) have become popular solutions for grid-tied inverters, suited to work on AC-grids with an increasing share of distributed ...
Florian Reissner   +4 more
openaire   +2 more sources

Pole Assignment Based Auxiliary Damping Control for Renewable Generation Integrated into Power System

open access: yesZhongguo dianli, 2021
A large amount of renewable energy has changed the damping characteristics of the power system through the access of power electronic equipment, resulting in the prominent problem of low-frequency oscillation of synchronous generators, posing a threat to
Yi ZHANG   +5 more
doaj   +1 more source

Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio

open access: yesIEEE Access, 2021
Wind power, photovoltaics and other new energy sources are connected to the grid on a large scale. The power electronic interface cannot provide inertia and damping support for the microgrid.
Shengwei Qu, Zhijie Wang
doaj   +1 more source

Optimal Design of Virtual Inertia and Damping Coefficients for Virtual Synchronous Machines [PDF]

open access: yes2018 IEEE Power & Energy Society General Meeting (PESGM), 2018
In Proceedings of the Power and Energy Society General ...
Atinuke Ademola-Idowu, Baosen Zhang
openaire   +2 more sources

Transient Stability Enhancement Strategy for Islanded Microgrids Based on Energy Storage–Virtual Synchronous Machine Control

open access: yesEnergies, 2023
In a high percentage of new energy-islanded microgrids, the overall inertia of the system gradually decreases, and the transient stability requirements of the microgrid frequency and voltage become more and more demanding under low-inertia conditions. To
Chenghao Ma   +3 more
semanticscholar   +1 more source

Modeling and Initialization of a Virtual Synchronous Machine for Power System Fundamental Frequency Simulations

open access: yesIEEE Access, 2021
The share of renewable energy sources interfaced to the bulk power system through power electronic devices is continuously increasing. As a result, the power systems of the future face challenges of stability and reduced inertia and, to maintain the ...
Bojana Barac   +3 more
doaj   +1 more source

Different Virtual Stator Winding Configurations of Open-End Winding Five-Phase PM Machines for Wide Speed Range without Flux Weakening Operation [PDF]

open access: yes, 2013
This paper presents a specific control strategy of double-ended inverter system for wide-speed range of open-winding five phase PM machines. Different virtual winding configurations (star, pentagon, pentacle and bipolar) can be obtained by choosing the ...
NGUYEN, Ngac Ky   +12 more
core   +1 more source

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