International Journal of Electrical Power & Energy SystemsWith increasing load, it is difficult to maintain power system static voltage stability (SVS). The existing SVS analysis based on the reactive power limit (RPL) of the non-salient synchronous generator (SG) and ignoring the exciter’s loss is inaccurate ...
Shenghu Li, Weijian Xia
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International Journal of Electrical Power & Energy SystemsThe existing reactive power limit models of doubly-fed induction generators ignore the relation among wind speed, rotor speed, and active power output.
Shenghu Li
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Reactive power limits in distributed generators from generic capability curves [PDF]
2014 IEEE PES General Meeting | Conference & Exposition, 2014 This paper presents a generic trapezoid-type capability curve for any distributed generation technology. This curve is used to estimate the machine reactive power limits in terms of the actual active power and terminal voltage. The proposed simplification was tested on synchronous machines, doubly fed induction generators and full power converter ...
Gustavo Valverde, J. Orozco
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Impact on Generator Reactive Power Limits on a Static Voltage Stability
Advances in Electrical and Computer Engineering, 2011 Voltage stability margin in a power system is closely related with the availability of reactive power in the system. Therefore, adequate modeling of the reactive power sources becomes an important issue in this type of studies. The Minimum Singular Value of the load flow Jacobian matrix has been commonly used as a static voltage stability index.
Jorge Guillermo Calderón-Guizar +1 more
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Limits of reactive power compensation of a doubly fed induction generator based wind turbine system
Bulletin of Electrical Engineering and Informatics, 2023 The doubly fed induction generator (DFIG) systems feature a significant amount of free power capacity that may be used for reactive power adjustment when they are put into practical use. This change, which is occasionally overlooked, is a significant one.
Ali Abdulabbas +2 more
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Voltage Stability Limit of Electric Power System with Reactive Power Constraints on Generators
IEEJ Transactions on Power and Energy, 2003 This paper investigates transfer limit surface as a key to voltage stability of electric power system. Transfer limit surface is defined in nodal loading parameter space as a set of critical points. It is concluded that transfer limit surface of general power system with inequality constraints is considered to be continuous, non-smooth, and convex ...
Yoshihiko Kataoka, Yukio Shinoda
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Fault analysis and performance improvement of grid-connected doubly fed induction generator through an enhanced crowbar protection scheme. [PDF]
PLoS ONEThe main problem associated with a doubly fed induction generator (DFIG) during fault is large inrush currents induced in rotor winding, which has detrimental effects on the machine's AC excitation converter.
Rameez Akbar Talani +5 more
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EVALUATION OF EFFECT OF REACTIVE POWER CONTROL STRATEGY BASED ON VOLTAGE TERMINAL OF GENERATORS ON LIMIT INDUCED BIFURCATION AND DYNAMIC VOLTAGE STABILITY MARGIN [PDF]
مجله مدل سازی در مهندسی, 2013 Reactive power limit of power system generators has a significant effect on the static voltage stability margin such as maximum load ability point and dynamic voltage stability margin such as HB, LIB and SNB.
M.H. Velayati, N. Amjady, I. Khajevandi
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Prediction of operating conditions of the power system considering reactive power limits of generators and dynamic voltage stability margin by using neural network [PDF]
مجله مدل سازی در مهندسی, 2017 In power system, dynamic voltage stability margin corresponding with hopf bifurcation (HB) and reactive power limit of generators, As the two basic concepts in power system operation are defined in terms of voltage stability.
Issa Khajevandi +2 more
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Estimation of bifurcation point in multi-bus system using generator reactive power limit approach [PDF]
International Journal of Electrical and Power Engineering, 2010 Nwohu, Mark Ndubuka
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