Results 61 to 70 of about 577 (148)

Enhanced control and parameter analysis for virtual synchronous generators without PLL

The Journal of Engineering, 2019
Currently, virtual synchronous generator (VSG) technology is proposed to be a solution to stability controlling of micro-source inverter. However, the deviation from phase locked loop (PLL) influences the reference frequency calculating which is ...
Bo Zhang, Xueyuan Zhang, Zijun Song, Xiangwu Yan   +3 more
doaj   +1 more source

Optimal Control Strategy for Frequency Support of Energy Storage Doubly‐Fed Condenser Considering Frequency Trajectory Characteristics of Power Systems

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a rotor speed‐based frequency trajectory control strategy for ESDFC to tackle frequency stability issues in high‐renewable power systems with reduced inertia. Integrating dual‐objective optimisation and adaptive parameter design, the strategy effectively suppresses the initial RoCoF and frequency nadir deviation without mode ...
Shuqiang Zhao, Sitong Zhang, Yihang Jiang, Hui Wang   +3 more
wiley   +1 more source

Three‐Dimensional Adjustable Operating Domain of VSG Parameters Considering Inertia, Damping and Short‐Circuit Ratio

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
The three‐dimensional adjustable operating domains of VSG parameters are obtained under the two model constraints. These domains consider inertia, damping and SCR. ABSTRACT Virtual synchronous generators (VSGs) can provide flexible inertia and damping support, but these two parameters are strongly coupled. Inappropriate parameter tuning may deteriorate
Shaowei Liu, Haibo Zhang, Xining Liu, Baohong Liu, Wenbin Lin   +4 more
wiley   +1 more source

Adaptive Inertia‐Damping Coordination for Sending‐End VSG Control in a Wind‐PV MMC‐HVDC Collection System

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a DQN‐based adaptive inertia‐damping coordination strategy for frequency support in a wind‐solar MMC‐HVDC collection and transmission system. A physically interpretable coordination law is developed based on frequency deviation and RoCoF, while the DQN selects bounded parameter modes online instead of directly outputting continuous ...
Ruyin Sun, Liang Qin, Xiao Lei, Ruiqi Li, Kaipei Liu   +4 more
wiley   +1 more source

Enhanced Phase‐to‐Phase Distance Protection for AC Lines With Power‐Electronics‐Interfaced Sources

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes an adaptive enhanced phase‐comparison distance protection (PCDP) strategy to address the maloperation risks caused by high penetration of power electronics‐interfaced sources (PEIS). Unlike the conventional scheme with a fixed operating boundary, the proposed strategy dynamically adjusts the protection zone, effectively capturing ...
Shuyang Wang, Hong Cao, Guosheng Yang, Yonghui Song, Zexin Zhou   +4 more
wiley   +1 more source

Deep and Reinforcement Learning in Virtual Synchronous Generator: A Comprehensive Review

Energies
The virtual synchronous generator (VSG) is an important concept and primary control method in modern power systems. The penetration of power-electronics-based distributed generators in the power grid provides uncertainty and reduces the inertia of the ...
Xiaoke Ding, Junwei Cao
doaj   +1 more source

Research on Super Capacitor Energy Storage System and Its Control of Wind Power System Based on Virtual Synchronous Technology

Chemical Engineering Transactions, 2016
High penetration of wind power in power grid would seriously affect the frequency safety. Synchronous generator can adjust system power and stabilize grid voltage and grid frequency.
P.F. Xu, K. Shi, H.Q. Zhu, D. Zhao, R.K. Li   +4 more
doaj   +1 more source

Inertia and primary frequency response support of VSG-controlled PMSG-WT enabled by utilization factor control of fuel cell system and ultracapacitor

International Journal of Electrical Power & Energy Systems
This work proposes integrating hybrid energy sources including ultracapacitor (UC) and fuel cell (FC) which are controlled by the virtual synchronous generator (VSG) strategy into a VSG-controlled PMSG-WT to provide frequency support. The UC emulates the
Meysam Hoseintabar Marzebali, Amir Khorsandi, Jafar Milimonfared   +2 more
doaj   +1 more source

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

The Journal of Engineering, 2019
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.
Xiangwu Yan, Sara Y.A. Mohamed, Dongxue Li, Abuzaid S. Gadalla   +3 more
doaj   +1 more source

Low voltage ride-through control of virtual synchronous generator based on phase and amplitude compensation

电力工程技术
Virtual synchronous generator (VSG) enhances the stability of distributed power sources during grid connection by simulating the operating principle of a synchronous generator and introducing the virtual inertia and damping coefficient.
CHEN Zhiyong, DONG Xinwei, LI Chuanhui, WANG Zhichao, ZHAO Ming, DU Xiuwen   +5 more
doaj   +1 more source