Results 21 to 30 of about 2,112 (262)

Parallel operation of virtual synchronous generators and synchronous generators in a microgrid

open access: yesThe Journal of Engineering, 2018
Aiming for integration of a large‐scale of distributed generators (DGs) such as photovoltaic into the microgrids, the virtual synchronous generator (VSG) control concept has been developed. By this concept, DGs based on inverters can exhibit the characteristics of synchronous generators (SGs) such as the inertial, damping, and droop functions and can ...
Xiangwu Yan   +3 more
openaire   +2 more sources

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

An integrated control algorithm of power distribution for islanded microgrid based on improved virtual synchronous generator

open access: yesIET Renewable Power Generation, 2021
Virtual synchronous generator technology can effectively improve the anti‐interference characteristics of the system frequency and bus voltage in the microgrid, and solve the problems of insufficient damping and low inertia of the system.
Liang Zhang   +5 more
doaj   +1 more source

Virtual synchronous generators dynamic performances [PDF]

open access: yes2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM), 2014
In this paper, dynamic performances of virtual synchronous generator are investigated. The virtual synchronous generator is based on the synchronverter (VSG) concept which is an inverter that mimics a synchronous generator (SG). The real and reactive power delivered by VSGs connected in parallel and operated as generators can be automatically shared ...
Raouia Aouini   +3 more
openaire   +1 more source

Coordinated control strategy for a PV-storage grid-connected system based on a virtual synchronous generator

open access: yesGlobal Energy Interconnection, 2020
Due to the characteristics of intermittent photovoltaic power generation and power fluctuations in distributed photovoltaic power generation, photovoltaic grid-connected systems are usually equipped with energy storage units.
Xing Zhang   +5 more
doaj   +1 more source

Adaptive Virtual Synchronous Generator Based on Model Predictive Control with Improved Frequency Stability

open access: yesEnergies, 2022
With the massive integration of renewable energy into the grid, grid inertia and its stability continue to decrease. To improve inertia and facilitate grid restoration, a control strategy for radial basis function virtual synchronous generators based on ...
Xuhong Yang   +5 more
doaj   +1 more source

Influence of control parameters on synchronization stability of virtual synchronous generator

open access: yesArchives of Electrical Engineering, 2022
Different from the synchronization mechanism of synchronous generators, the non-synchronous generators must be synchronized with the grid through a controller. Generally, the virtual synchronous generator (VSG) control strategy is adopted for this purpose.
Yanxia Zhang   +3 more
openaire   +1 more source

Enhanced Performance of a Stand-Alone Gas-Engine Generator Using Virtual Synchronous Generator and Energy Storage System

open access: yesIEEE Access, 2019
Gas engine generators have been recognized as a set of beneficial generating units for producing electric power owing to their high efficiency, low emissions and appropriate fuel price.
Htar Su Hlaing   +4 more
doaj   +1 more source

Isochronous control of a virtual synchronous generator using inertia and excitation emulations with restoration control in a standalone microgrid

open access: yesIET Smart Grid, 2020
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

Research on multi-VSG fast pre-synchronization grid connection with dual power loop

open access: yesEnergy Reports, 2020
This paper researched on the pre-synchronization grid connection method of a virtual synchronous generator (VSG), and proposed a fast pre-synchronization method based on the virtual power loop. According to the self-synchronization characteristics of the
Chunxue Wen   +5 more
doaj   +1 more source

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