Results 21 to 30 of about 65,918 (309)

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

Internal Induced Voltage Modification for Current Limitation in Virtual Synchronous Machine

open access: yesEnergies, 2022
Virtual inertia control is a methodology to make inverter-based resources (IBR) behave like a synchronous machine. However, an IBR cannot fully emulate the response of synchronous machine because of its low-current capacity. When the inertial response of
Dai Orihara   +10 more
doaj   +1 more source

Low-frequency Oscillation Damping Control for Large-scale Power System with Simplified Virtual Synchronous Machine

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
This study focuses on a virtual synchronous machine (VSM) based on voltage source converters to mimic the behavior of synchronous machines (SMs) and improve the damping ratio of the power system. The VSM model is simplified according to some assumptions (
Karim Sebaa   +4 more
doaj   +1 more source

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

Stability analysis of a grid-connected VSC controlled by SPC [PDF]

open access: yes, 2018
In the near future a large part of traditional generation based on conventional synchronous machines (SM) will be replaced by renewable generation based on voltage source converters (VSC).
Candela García, José Ignacio   +3 more
core   +1 more source

Virtual synchronous machines with fast current loop

open access: yesIFAC-PapersOnLine, 2020
Abstract Virtual synchronous machines (VSM) are inverters that behave towards the power grid like synchronous generators. One popular way to realize such inverters are synchronverters, whose control algorithm has evolved over time, but both theoretical analysis and practical observations show that the output currents of a synchronverter are very ...
Shivprasad Shivratri   +3 more
openaire   +1 more source

Virtual synchronous-machine control of voltage-source converters in a low-voltage microgrid [PDF]

open access: yes, 2016
In order to facilitate the further integration of distributed renewable generation into existing power systems, enhanced control schemes for grid-tied power electronic converters are necessary to ensure non-synchronous power sources can provide power and
Albiol-Tendillo, Laura   +5 more
core   +1 more source

Torsional oscillation damping in wind turbines with virtual synchronous machine‐based frequency response

open access: yesWind Energy, 2022
In the quest of improving the frequency response capability of wind turbines, control solutions trying to emulate synchronous machines have been proposed.
Liang Lu   +2 more
doaj   +1 more source

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