Results 101 to 110 of about 5,118 (206)

Analiza mogućnosti primjene UPFC-FACTS uređaja

open access: yes, 2021
Cilj rada je dati uvid u različite FACTS tehnologije te testirati UPFC uređaj spojen na 400 kV sabirnicu u TS Ernestinovo koji će regulirati tokove djelatnih i jalovih snaga i održavati napon u zadovoljavajućim granicama u programskom paketu DIgSILENT. Prvo je spomenuta teorija prijenosa električne energije potrebna za razumijevanje rada i svrhe FACTS ...
openaire   +2 more sources

Control and Limit Enforcements for VSC Multi-Terminal HVDC in Newton Power Flow

open access: yes, 2017
This paper proposes a novel method to automatically enforce controls and limits for Voltage Source Converter (VSC) based multi-terminal HVDC in the Newton power flow iteration process.
Cui, Hantao, Li, Fangxing, Yuan, Haoyu
core   +1 more source

Analysis of application effect of 220 kV UPFC demonstration project in Shanghai grid

open access: yesThe Journal of Engineering, 2019
The feasibility study of unified power flow controller (UPFC) application in 220 kV Shanghai Grid is conducted based on the analysis of the practical operation of the grid.
Yong Cui   +6 more
doaj   +1 more source

Comprehensive Power Flow Analyses and Novel Feedforward Coordination Control Strategy for MMC-Based UPFC

open access: yesEnergies, 2019
This paper aims to discover the general steady-state operation characteristics, as well as improving the dynamic performance, of the modular multilevel converter (MMC)-based unified power flow controller (UPFC).
Jinlian Liu, Zheng Xu, Liang Xiao
doaj   +1 more source

Stability improvement of power system using UPFC [PDF]

open access: yes, 2007
Occurrence of a fault in a power system causes transients. To stabilize the system, Power System Stabilizer (PSS) and Automatic Voltage Regulator (AVR) are used.
Pradhan, Jyotshnamayee
core  

Performance comparison of LOE protection of synchronous generator in the presence of UPFC

open access: yesEngineering Science and Technology, an International Journal, 2016
Generator loss of excitation (LOE) protection is a principal protection of power system which operate based on impedance measurement. This relay calculates impedance by measuring voltage and current at the generator terminal.
Seyed Yaser Ebrahimi, Amir Ghorbani
doaj   +1 more source

Clustering ECE and NFE Accredited Statuses with Unsupervised Possibilistic Fuzzy C-Means

open access: yesJurnal Nuansa Akademik
The research aims to have clusters of accredited statuses of early childhood education (ECE) and non-formal education (NFE) institutions in Yogyakarta Special Province in Indonesia, which are created by unsupervised possibilistic fuzzy c-means (UPFC) and
Agung Prihantoro   +2 more
doaj   +1 more source

Simulation and Development of Unified Power Flow Controller Using Multilevel Inverter [PDF]

open access: yes, 2010
Heavily loaded transmission lines and the inability to control the amount and direction of power flows have became major concerns to the power utilities.
Mailah, Nashiren Farzilah
core  

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