New:
Analytical methods for network congestion control
preprint (free)
print
Synthesis Lectures on Communication Networks
Morgan and Claypool Publishers, July 2017
See the Caltech smart grid
website.
We are creating a new website (still under construction).
Our Algorithms in the Field project.
Sample: Power Networks

Convex relaxation of optimal power flow (2part tutorial)
Extended version with proofs:
Part I
Part II
S. H. Low
Part I: formulations and equivalence.
IEEE Trans. Control of Network Systems, 1(1):1527, March 2014
Part II: exactness.
IEEE Trans. Control of Network Systems, 1(2):177189, June 2014
slides: CNLS
Grid Science Winter School, Santa Fe, NM, Jan 2015

Branch flow model: relaxations and convexification (Parts I, II)
Masoud Farivar and S. H. Low
IEEE Trans. Power Systems, 28(3):25542572, August 2013
old slides,
old video
(Berkeley i4Energy Seminar, April 2012)

Design and stability of loadside primary frequency control in power systems
C. Zhao, U. Topcu, N. Li and S. H. Low
IEEE Trans. on Automatic Control, 59(5):11771189, May 2014
slides,
(Skoltech Conf on Advanced Mathematical Methods For Energy Systems,
June 2015)

An online gradient algorithm for optimal power flow on radial networks
Lingwen Gan and S. H. Low
IEEE Journal on Selected Areas in Communications (JSAC)
Special Issue on Emerging Technologies in Communications, 34(3), 2016
slides
(CISS Plenary, Princeton, March 2016)

Impact of residential PV adoption on retail electricity rates
D.W.H. Cai, S. Adlakha, S. H. Low, P. De Martini and K. M. Chandy
Energy Policy, 62(C):830843, 2013

Exact convex relaxation of optimal power flow in radial networks
L. Gan, N. Li, U. Topcu and S. H. Low
IEEE Trans. on Automatic Control, 2014

Zero duality gap in optimal power flow problem
Javad Lavaei and S. H. Low
IEEE Trans. on Power Systems, 27(1):92107, February 2012

Optimal demand response: problem formulation and deterministic case
L. Chen, N. Li, L. Jiang and S. H. Low
In Control and Optimization Theory for Electric Smart Grids
Aranya Chakrabortty and Marija Ilic, Editors, Springer 2012

Quadratically constrained quadratic programs
on acyclic graphs with application to power flow
Subhonmesh Bose, Dennice F. Gayme, K. Mani Chandy and S. H. Low
Submitted for publication, June 2013

Talks:
 Autonomous energy grid  optimization
slides
pdf
NREL Workshop on Autonomous Energy Grid, Golden CO, Sept 2017
 Adaptive charging network
 Caltech Alumni College, Pasadena, CA, November 2016
poster
 PFI:AIRTT, NSF, DC, March 2017
slides

Optimal storage placement and power flow solution
slides
Stanford Smart Grid Seminar Series, Palo Alto, CA, November 2016

Online optimization of power networks
slides
video 1080p
video 240p
IPAM Workshop on Optimization and Equilibrium of Energy Economics,
UCLA, CA, January 2016
Updated slides
(Simons Institute Workshop, Berkeley, June 2016)

Loadside frequency control
slide
Expert Conf on Advanced Mathematical Methods For Energy Systems,
Skoltech, Moscow, Russia, June 2015

Smart grid research
slides
Cornell University, Ithaca, NY, March 2015

Semidefinite relaxation of optimal power flow: tutorial
slides
CNLS Grid Science Winter School, Santa Fe, NM, Jan 2015
 Optimal power flow
video+slides
DTC Science & Technology Innovators Lecture,
College of Sci & Engr, University of Minnesota, Sept 2013
 Control architecture for networked DER
slides
Optimization panel at the 12th Int'l Workshop on
Electric Power Control Centers (EPCC), Bedford Springs, PA, June 2013
 Optimal power flow and demand response
slides,
video
i4Energy Seminar, CITRIS, UC Berkeley, April 2012

Blogs (why energy):

Sample: Communication Networks
New paper:
 Pricing link by time
C. D. Lai, S. H. Low, K. C. Leung and V. O. K. Li
Proc. ACM Sigmetrics Conference, Austin, TX, June 2014
 Optimization flow control, I: basic algorithm and convergence
S. H. Low and D. E. Lapsley
IEEE/ACM Transactions on Networking, 7(6):86175, Dec 1999

A duality model of TCP and queue management algorithms
S. H. Low
IEEE/ACM Transactions on Networking, 11(4):525536, Aug 2003
 FAST TCP: motivation, architecture, algorithms, performance
David X. Wei, Cheng Jin, S. H. Low and Sanjay Hegde
IEEE/ACM Transactions on Networking, 14(6):12461259, Dec 2006

Equilibrium of heterogeneous congestion control: existence and uniqueness
Ao Tang, Jintao Wang, S. H. Low and M. Chiang
IEEE/ACM Transactions on Networking, 15(4):824837, Oct 2007

REM: active queue management
S. Athuraliya, V. H. Li, S. H. Low and Q. Yin
IEEE Network, 15(3):4853, May/Jun 2001

Layering as optimization decomposition: a mathematical theory of network architectures
M. Chiang, S. H. Low, A. R. Calderbank and J. C. Doyle
Proceedings of the IEEE, 95:255312, Jan 2007

Tutorial: TCP Congestion control
slides;
video part 1,
video part 2
PURSUIT Summer School, Cambridge
University, UK, Aug 2011


