Results 21 to 30 of about 145,024 (283)

Start-up of virtual synchronous machine: methods and experimental comparison [PDF]

open access: yes2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018
A modern grid is smarter mainly in the advance in information and communication technologies, while the power processing mechanism does not make a big difference.
Zhang, Weiyi   +2 more
core   +3 more sources

Virtual synchronous machine control with virtual resistor for enhanced short circuit capability

open access: yes2017 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2022
S.1109-1114Increasing shares of power electronic converters in renewable generation challenge power system stability. For very high shares the state of the art current-control approach should be replaced by grid forming control schemes.
Duckwitz, D., Glöckler, C., Welck, F.
core   +2 more sources

Virtual Synchronous Machine Control for Asynchronous Grid Connections

open access: yesIEEE Transactions on Power Delivery, 2023
The reduced amount of large synchronous generators results in the need for fast, flexible, and intelligent power distribution devices to enhance the inertia in the modern power system.
Carne, Giovanni De   +2 more
core   +2 more sources

A Virtual Impedance-Based Flying Start Considering Transient Characteristics for Permanent Magnet Synchronous Machine Drive Systems

open access: yesEnergies, 2023
A virtual impedance-based flying start considering transient characteristics for permanent magnet synchronous machine drive systems is proposed. The conventional flying start based on virtual resistance (VR) assumes that the load of the system is ...
Yoon-Seong Lee   +5 more
doaj   +2 more sources

A novel virtual synchronous machine implementation and verification of its effectiveness to mitigate renewable generation connection issues at weak transmission grid locations

open access: yesIET Renewable Power Generation, 2023
Large‐scale penetration of renewable resource based generation will displace conventional synchronous machine‐based power generation. This will lower the overall system inertia and will result in lower short circuit levels at point of connection (POC) of
Randupama Gunasekara   +6 more
doaj   +2 more sources

Virtual Synchronous Machine Control of RES Plants in Isolated Power Systems

open access: yesApplied Sciences, 2022
Because of the increase in renewable energy sources (RESs) share, new control strategies of isolated power systems have been developed to improve the frequency and voltage stability of inverter-interfaced RESs.
Jaser A. Sa’ed   +3 more
doaj   +2 more sources

Photovoltaic Power Injection Control Based on a Virtual Synchronous Machine Strategy

open access: yesSensors
The increasing participation of photovoltaic sources in power grids presents the challenge of enhancing power quality, which is affected by the intrinsic characteristics of these sources, such as variability and lack of inertia.
Miguel Albornoz   +5 more
doaj   +2 more sources

Steady‐state operating points of islanded virtual synchronous machine microgrid

open access: yesEnergy Science & Engineering
Before starting stability analysis of the multivirtual synchronous machine (n‐VISMA) power system, it is necessary to obtain the steady‐state operating points (SSOPs) of all dynamic nodes in the network.
Sanusi Alabi Kamilu, Hans‐Peter Beck
doaj   +2 more sources

Wideband Oscillation Mechanism Analysis in VSC-HVDC Systems With Virtual Synchronous Machine in Master-Slave Mode

open access: yesIEEE Access
Virtual synchronous machine (VSM) has been applied in voltage source converter high voltage direct current (VSC-HVDC) system. This paper proposes a stability evaluation model for ‘rate of change of frequency-transient frequency excursion’ ...
Chang Li   +4 more
doaj   +2 more sources

Comparative Evaluation of Dynamic Performance of a Virtual Synchronous Machine and Synchronous Machines [PDF]

open access: yesIET Conference Proceedings, 2021
Increasing penetration of converter-interfaced renewable generation has led to significant operational challenges for power systems. Such challenges are mainly caused by the different capabilities and dynamic responses of the converters compared with synchronous machines, e.g.
Khan, Md Asif Uddin   +6 more
openaire   +3 more sources

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