Results 31 to 40 of about 1,361,325 (295)

A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System

open access: yesKongzhi Yu Xinxi Jishu, 2021
Due to the mismatch of main circuit parameters and the negative impedance characteristics of inverter-motor system under specific operating conditions, urban rail transit traction system is prone to DC-link voltage oscillation.
LI Tingting   +4 more
doaj  

Validation of Voltage Instability Detection and Control Using a Real Power System Incident

open access: yesEnergies, 2021
This paper applies a voltage instability monitoring method based on voltage and current measurements from a transmission bus PMU on the Hellenic Interconnected System using both unstable and marginally stable scenarios, derived from the historical 12 ...
Charalambos Lambrou   +2 more
doaj   +1 more source

Analysis and comparison of multi-parameter factors affecting the stability of subsynchronous oscillation of grid-connected PMSG

open access: yesEnergy Reports, 2022
This article mainly focuses on DC voltage control loop of PMSG which affecting the subsynchronous oscillation (SSO) stability. Based on the established general dynamic interconnection model, the oscillation stability region of DC voltage control ...
Bixing Ren   +6 more
doaj   +1 more source

Voltage security evaluation based on perturbation method [PDF]

open access: yes, 2009
This is the post-print version of the final paper published in International Journal of Electrical Power & Energy Systems. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing,
Mousavi, A, Rashidinejad, M
core   +1 more source

Transient Instability Mechanism and Control Method of PLL-Based Grid-Connected VSC

open access: yesZhongguo dianli, 2022
The transient instability mechanism and control method of grid-following control voltage source converter (VSC) are comprehensively studied to solve the transient instability of PLL (phase locked loop)-based VSC with consideration of the influence of ...
Zheng CHEN   +5 more
doaj   +1 more source

On-line Voltage Instability Prediction using an Artificial Neural Network [PDF]

open access: yes, 2019
In this paper, a predictive method to detect voltage instability using an artificial neural network is presented. The proposed method allows transmission\ua0 system operators to predict long-term voltage instability far before the system voltage ...
Le, Anh Tuan   +11 more
core   +1 more source

Suppression of Instabilities in a Plasma Voltage Stabilizer

open access: yesApplied Sciences, 2022
This article presents the results of experiments aimed at studying the conditions for the excitation of current and voltage oscillations in plasma in a three-electrode voltage stabilizer. It was found that in the modes under consideration, the plasma had negative conductivity, which caused oscillations.
Alexander Mustafaev   +2 more
openaire   +2 more sources

Voltage control solutions to face the CPL instability in MVDC shipboard power systems

open access: yes, 2014
Voltage control represents one of the main challenges in the development of Medium Voltage DC power systems on ships. The presence of non-linear loads (high-bandwidth controlled converters, CPLs) may cause dangerous voltage oscillations or even ...
GIADROSSI, GIOVANNI   +5 more
core   +1 more source

Voltage instability analysis for electrical power system using voltage stabilty margin and modal analysis [PDF]

open access: yes, 2016
Voltage instability analysis in electric power system is one of the most important factors in order to maintain the equilibrium of the power system. A power system is said to be unstable if the system is not able to maintain the voltage at all buses in ...
Omar, Rosli   +3 more
core   +2 more sources

Real-Time Short-Term Voltage Stability Assessment Using Combined Temporal Convolutional Neural Network and Long Short-Term Memory Neural Network

open access: yesApplied Sciences, 2022
This research presents a new method based on a combined temporal convolutional neural network and long-short term memory neural network for the real-time assessment of short-term voltage stability to keep the electric grid in a secure state.
Ananta Adhikari   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy