Results 21 to 30 of about 199,554 (295)

Online Assessment of Transient Stability of Grid Connected PV Generator With DC Link Voltage and Reactive Power Control

open access: yesIEEE Access, 2020
The proliferation of Photovoltaic (PV) generation has brought several changes in the transient stability analysis of power systems. The rotor angle dynamics based stability analysis used for synchronous generators may not be applicable for PV generators.
Indla Rajitha Sai Priyamvada   +1 more
doaj   +1 more source

Influence of DC-Bus Voltage on Synchronization Stability of Grid-Following Converters

open access: yesShanghai Jiaotong Daxue xuebao
With the increasing penetration of new energy sources and the development of new power systems, grid-following converter (GFL) plays a crucial role in maintaining the stability of power systems.
SI Wenjia, CHEN Junru, ZHANG Chenglin, LIU Muyang
doaj   +1 more source

Optimization of Battery Energy Storage to Improve Power System Oscillation Damping

open access: yes, 2018
A placement problem for multiple Battery Energy Storage System (BESS) units is formulated towards power system transient voltage stability enhancement in this paper. The problem is solved by the Cross-Entropy (CE) optimization method.
Liu, Chengxi   +4 more
core   +1 more source

Frequency support characteristics of grid-interactive power converters based on the synchronous power controller [PDF]

open access: yes, 2016
Grid-interactive converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization.
Remón Rodríguez, Daniel   +2 more
core   +2 more sources

A risk assessment method of multi-form transient voltage stabilities for high-proportion renewable energy sending-end power grids

open access: yesInternational Journal of Electrical Power & Energy Systems
For high-proportion renewable energy sending-end power grids, various transient voltage instabilities including transient overvoltage, transient low voltage, delayed voltage recovery, repeated low voltage ride through, and sustained low voltage, are ...
Lei Wu, Pupu Chao, Weixing Li, Zhimin Li
doaj   +1 more source

Analysis of Transient Voltage Stability in a Low Voltage Distribution Network Using SST for the Integration of Distributed Generations

open access: yesJournal of Electrical and Computer Engineering, 2018
Models of a low voltage distribution network using a typical tertiary-structure solid state transformer (SST) for the integration of distributed generations (DGs) and a conventional low voltage distribution network integrated with DGs were established to
Sheng Li   +3 more
doaj   +1 more source

Dynamic VAR planning methodology to enhance transient voltage stability for failure recovery

open access: yesJournal of Modern Power Systems and Clean Energy, 2017
In recent years, failure recovery after faults is concerned and discussed worldwide as an important and hot topic. Facing the challenge of heavy loads and ultra-high voltage transmission, it’s urgent to propose some solutions to enhance transient voltage
Di YANG   +4 more
doaj   +1 more source

Plug and Play DC-DC Converters for Smart DC Nanogrids with Advanced Control Ancillary Services [PDF]

open access: yes, 2018
This paper gives a general view of the control possibilities for dc-dc converters in dc nanogrids. A widely adopted control method is the droop control, which is able to achieve proportional load sharing among multiple sources and to stabilize the ...
Caldognetto, Tommaso   +4 more
core   +1 more source

An Integrated Assessment Method for Power System Transient Stability Based on CBAM-ConvGRU [PDF]

open access: yesDianli jianshe
[Objective] To improve the effectiveness of transient stability assessment in power systems and address evaluation performance degradation under class-imbalance conditions,this paper proposes an integrated multi-task transient stability assessment method
XU Yanchun, SUN Sihan, ZHANG Jingyu, TANG Xinlin, ZHANG Tao, XI Lei, WANG Lingyun, MI Lu
doaj   +1 more source

D-STATCOM d-q Axis Current Reference Control Applying DDPG Algorithm in the Distribution System

open access: yesIEEE Access, 2021
The high penetration level of renewable energy in large-scale power systems could adversely affect power quality, such as voltage stability and harmonic pollution. This paper assesses the impacts of Distribution Static Compensator (D-STATCOM), one of the
Jong Ha Woo   +4 more
doaj   +1 more source

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