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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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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Self-excited vibration of whole vehicle with multiple limit cycles induced by shimmy of front wheels
Journal of Low Frequency Noise, Vibration and Active Control, 2020 Front wheel shimmy may induce the self-excited vibration of whole vehicle with multiple limit cycles. This kind of shimmy is difficult to control and can do great harm to the vehicle.
Daogao Wei +5 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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Sequential noise-induced escapes for oscillatory network dynamics [PDF]
, 2017 It is well known that the addition of noise in a multistable system can induce random transitions between stable states. The rate of transition can be characterised in terms of the noise-free system's dynamics and the added noise: for potential systems ...
Ashwin, Peter +2 more
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Reduction theories elucidate the origins of complex biological rhythms generated by interacting delay-induced oscillations. [PDF]
PLoS ONE, 2011 Time delay is known to induce sustained oscillations in many biological systems such as electroencephalogram (EEG) activities and gene regulations. Furthermore, interactions among delay-induced oscillations can generate complex collective rhythms, which ...
Ikuhiro Yamaguchi +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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Bifurcation-based parameter tuning in a model of the GnRH pulse and surge generator [PDF]
, 2008 We investigate a model of the GnRH pulse and surge generator, with the definite aim of constraining the model GnRH output with respect to a physiologically relevant list of specifications. The alternating pulse and surge pattern of secretion results from
Alexandre Vidal +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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