Beyond Phasors: Modeling and Simulating Dynamic Phenomena in Large Interconnected Power Systems
Event details
| Date | 07.04.2016 |
| Hour | 14:15 › 15:15 |
| Speaker | Prof. Yoash Levron (Technion - Israel Institute of Technology) |
| Location | |
| Category | Miscellaneous |
Abstract:
This talk discusses several recent methods for modeling dynamic events
in large interconnected power systems. Dynamic phenomena in large
power systems may be highly complex, and are modeled using varying
levels of abstraction, with an objective to find a good balance
between accuracy and computational complexity. The most basic model is
the static one, in which voltages and currents are assumed to be
nearly sinusoidal, and are represented by phasors. On the other
extreme, transient simulations may be very detailed, and view a power
system as a set of differential equations. This talk presents a third
type of model based on the concept of "dynamic phasors". This model
assumes time varying amplitudes and phases, and is shown to be the
middle ground between static models and transient models in terms of
accuracy and speed. Based on these concepts, I will also present a new
method for modeling power networks by dynamic phasors in the
direct-quadrature-zero (DQ0) reference frame. This model extends the
classic power flow equations, and accurately restates them for
time-varying systems. This theorem generalizes the quasi-static
approximation, and enables fast and accurate models based on dynamic
phasors.
Short Bio:
Yoash Levron received the B.Sc. (summa cum laude) degree in Electrical
Engineering from the Technion in 2001, and the M.Sc. and Ph.d. degrees
in Electrical Engineering from Tel-Aviv University in 2007 and 2013
respectively. In the years 2013-2014 he was a Postdoctoral Fellow at
the Colorado power electronics center, at the University of Colorado,
Boulder. He is currently an Assistant Professor in the Department of
Electrical Engineering at the Technion – Israel Institute of
Technology, Haifa, Israel. Dr. Levron has received several awards,
including the group award of ‘Israel Security’ in 2008 and 2010, the
Technion Viterbi fellowship for nurturing future faculty members
(2013-2014), and the Taub fellowship for leaders in science and
technology (2015). His research interests include power systems
monitoring and estimation, power systems dynamics and control, and
power electronics for renewable sources.
This talk discusses several recent methods for modeling dynamic events
in large interconnected power systems. Dynamic phenomena in large
power systems may be highly complex, and are modeled using varying
levels of abstraction, with an objective to find a good balance
between accuracy and computational complexity. The most basic model is
the static one, in which voltages and currents are assumed to be
nearly sinusoidal, and are represented by phasors. On the other
extreme, transient simulations may be very detailed, and view a power
system as a set of differential equations. This talk presents a third
type of model based on the concept of "dynamic phasors". This model
assumes time varying amplitudes and phases, and is shown to be the
middle ground between static models and transient models in terms of
accuracy and speed. Based on these concepts, I will also present a new
method for modeling power networks by dynamic phasors in the
direct-quadrature-zero (DQ0) reference frame. This model extends the
classic power flow equations, and accurately restates them for
time-varying systems. This theorem generalizes the quasi-static
approximation, and enables fast and accurate models based on dynamic
phasors.
Short Bio:
Yoash Levron received the B.Sc. (summa cum laude) degree in Electrical
Engineering from the Technion in 2001, and the M.Sc. and Ph.d. degrees
in Electrical Engineering from Tel-Aviv University in 2007 and 2013
respectively. In the years 2013-2014 he was a Postdoctoral Fellow at
the Colorado power electronics center, at the University of Colorado,
Boulder. He is currently an Assistant Professor in the Department of
Electrical Engineering at the Technion – Israel Institute of
Technology, Haifa, Israel. Dr. Levron has received several awards,
including the group award of ‘Israel Security’ in 2008 and 2010, the
Technion Viterbi fellowship for nurturing future faculty members
(2013-2014), and the Taub fellowship for leaders in science and
technology (2015). His research interests include power systems
monitoring and estimation, power systems dynamics and control, and
power electronics for renewable sources.
Practical information
- Informed public
- Free
Organizer
- Andrey Bernstein
Contact
- Andrey Bernstein