Results 221 to 230 of about 47,277 (264)

Transient Voltage Stability and Voltage Sag Discrimination by Matching Pursuit-Based Transient Modeling and Neural Networks

Electric Power Components and Systems, 2006
This article presents a method to discriminate between transient voltage stability and voltage sag. Transient modeling based on matching pursuit with an overcomplete dictionary of wavelet functions is a powerful tool in the analysis of the transient phenomena in power systems because of its ability to accurately represent them in both time and ...
P. Vera-Candeas, N. Ruiz-Reyes, F. Jurado   +2 more
openaire   +1 more source

Transient voltage stability signature in time domain simulations

Proceedings of 8th Mediterranean Electrotechnical Conference on Industrial Applications in Power Systems, Computer Science and Telecommunications (MELECON 96), 2002
Real-time dynamic security assessment is an important function to be implemented in energy management systems. In order to apply the most proper corrective actions it is necessary, in real time simulations, to distinguish a transient instability from voltage instability.
G. De Angelis, F. Gagliardi, M. La Scala, D. Lauria   +3 more
openaire   +1 more source

Dispatch optimization incorporating transient and voltage stability constraints

2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134), 2002
Stability aspects have often been incorporated in the dispatch/pricing procedure using trial and error methods, or approximated in the dispatch optimization directly as a set of linear constraints on generation/transmission. This paper presents the preliminary experiences with the development of an OPF model that incorporates both transient and voltage
D. Chattopadhyay, null Deqiang Gan
openaire   +1 more source

Transient stability enhancement and voltage regulation of power systems

IEEE Transactions on Power Systems, 1993
Improvement of the transient stability and voltage regulation of a single-machine-infinite-bus power system under the effects of a symmetrical three-phase short-circuit fault is detailed. The dynamical model of the system is described. A design strategy for nonlinear controllers is considered, and the design of a nonlinear variable-structure excitation
Wang, Youyi, Hill, David J, Gao, Long, Middletown, Richard H   +3 more
openaire   +3 more sources

Nonlinear design of excitation controller and power system stabilizer for voltage regulation and transient stability

Proceedings of the 2010 American Control Conference, 2010
This paper presents the nonlinear design of excitation controller and power system stabilizer (PSS) aimed at ensuring transient stability and satisfactory post-fault voltage regulation following a large disturbance. The proposed design offers the possibility to select the PSS gains so as to achieve both swings damping in an assigned time interval and ...
FUSCO, Giuseppe, RUSSO, Mario
openaire   +2 more sources

CNN based power system transient stability margin and voltage stability index prediction

2013 IEEE Computational Intelligence Applications in Smart Grid (CIASG), 2013
Operators at electric grid control centers are faced with the task of making important decisions in real-time. With the plethora of data available it becomes important to extract information from the available data, based on which knowledge of system condition can be formed. This knowledge can then be used in decision making.
Karthikeyan Balasubramaniam, Ganesh Kumar Venayagamoorthy, Neville Watson   +2 more
openaire   +1 more source

A corrective control for angle and voltage stability enhancement on the transient time-scale

IEEE Transactions on Power Systems, 2000
Summary form only given as follows. This paper deals with the development of a nonlinear programming methodology for evaluating load shedding (LS) as a corrective action to improve the dynamic security of power systems when angle or voltage instability is detected.
DE TUGLIE, Enrico Elio, DICORATO, Maria, LA SCALA, Massimo, Scarpellini P.   +3 more
openaire   +3 more sources

Use of Voltage Stability Assessment and Transient Stability Assessment Tools at PJM Interconnection

2021
Over the past few decades, PJM has moved voltage, transient, and dynamic stability analysis—historically the domain of planners and back-office engineers—into the control room. PJM utilizes the Real-Time Transfer Limit Calculator (RTTLC) to perform voltage stability analysis and determine operation limits.
Dean G. Manno, Jason M. Sexauer
openaire   +1 more source

Voltage Stability and Transient Fault Current Limitation of Voltage-Controlled MMCs with L-Filters

2019 4th IEEE Workshop on the Electronic Grid (eGRID), 2019
This paper presents a design-oriented analysis on the voltage stability and the transient fault current limitation of voltage-controlled modular multilevel converter (MMC) with L-filters. First, a dual-loop voltage control based on the L-filter plant is systematically designed, where the upper limits of controller parameters for ensuring the small ...
Li, Yingbiao, Guo, Jianbo, Wang, Xiongfei; id_orcid 0000-0002-6327-9729, Wu, Heng; id_orcid 0000-0003-0557-7573, Zhao, Bing, Wang, Shanshan, Wu, Guanglu   +6 more
openaire   +3 more sources

Voltage sensitivity-based transient voltage stability analysis considering HVDC recovery characteristics

TENCON 2015 - 2015 IEEE Region 10 Conference, 2015
This paper presents a method based on V-Q sensitivity and modal analysis to study the transient voltage stability of receiving AC network with HVDC feeding. When faults of receiving network occur, HVDC recovery characteristics are analyzed, which have an important effect on voltage stability of receiving network.
null Peidong Chen, Zhaobin Du, Fujun Zhan, Yao Zhang   +3 more
openaire   +1 more source