Limit-induced bifurcation by wind farm voltage supervisory control
Electric Power Systems Research, 2013 Abstract This paper studies dynamic bifurcations induced by the limits of a wind farm voltage supervisory control. This is an important issue due to the significant wind power penetration of current systems and also because of the catastrophic effect that this bifurcation may cause—loss of system stability without any previous warning. Wind turbines (
Pulgar-Painemal, Hector A. +1 more
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Time-delayed feedback control of coherence resonance near subcritical Hopf bifurcation: theory versus experiment [PDF]
, 2014 Using the model of a generalized Van der Pol oscillator in the regime of subcritical Hopf bifurcation we investigate the influence of time delay on noise-induced oscillations.
Feoktistov, A. +4 more
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Dynamics in a Predator–Prey Model with Cooperative Hunting and Allee Effect
Mathematics, 2021 This paper deals with a diffusive predator–prey model with two delays. First, we consider the local bifurcation and global dynamical behavior of the kinetic system, which is a predator–prey model with cooperative hunting and Allee effect.
Yanfei Du, Ben Niu, Junjie Wei
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Bifurcations of piecewise smooth flows:perspectives, methodologies and open problems [PDF]
, 2012 In this paper, the theory of bifurcations in piecewise smooth flows is critically surveyed. The focus is on results that hold in arbitrarily (but finitely) many dimensions, highlighting significant areas where a detailed understanding is presently ...
Colombo, Alessandro +3 more
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Novel role for alpha-2-macroglobulin (A2M) as a disease modifying protein in senile osteoporosis
Frontiers in Cell and Developmental Biology, 2023 Introduction: In the rapidly aging U.S. population, age-induced bone loss (senile osteoporosis) represents a major public health concern that is associated with a significant increased risk for low trauma fragility fractures, which are debilitating to ...
Siddaraju V. Boregowda +4 more
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Limit induced bifurcation due to converter transformer tap and DC controller limit
Acta Physica Sinica, 2012 The limit induced bifurcation (LIB) in AC/DC power system caused by converter transformer tap and extinction angle limit under the control mode of constant current in rectifier and constant voltage in inverter is studied in this paper. The reason why the singularity induced bifurcation does not occur while the hard limit encounters is analyzed.
null Tan Tao-Liang +2 more
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Efficient method to identify saddle‐node and limit‐induced bifurcation points of power system [PDF]
IET Generation, Transmission & Distribution, 2018 High intermittency in today's renewable‐rich power systems, and the prohibitive cost of upgrading the network infrastructure along with the load growth, has rendered voltage instability an imminent threat for many power systems.
Ahvand Jalali, Mohammad Aldeen
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Analysis of Sub-Synchronous Band Oscillation in a DFIG System With Non-Smooth Bifurcation
IEEE Access, 2019 With the interconnection of large-scale wind power, the sub-synchronous oscillation (SSO) which is mainly analyzed by the local small-signal method occurs in many power grids.
Ancheng Xue +3 more
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Bifurcations in Boolean Networks [PDF]
Discrete Mathematics & Theoretical Computer Science, 2011 This paper characterizes the attractor structure of synchronous and asynchronous Boolean networks induced by bi-threshold functions. Bi-threshold functions are generalizations of standard threshold functions and have separate threshold values for the ...
Chris Kuhlman +3 more
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Determination of phase noise spectra in optoelectronic microwave oscillators: a Langevin approach [PDF]
, 2008 We introduce a stochastic model for the determination of phase noise in optoelectronic oscillators. After a short overview of the main results for the phase diffusion approach in autonomous oscillators, an extension is proposed for the case of ...
Chembo, Yanne Kouomou +4 more
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