1. BE in Electrical Engineering, Jadavpur University, Calcutta, India, 2004
2. Research Student, Indian Institute of Technology (IIT) Kharagpur, Summer 2003
3. MS in Electrical Engineering, Rensselaer Polytechnic Institute, 2005.
5. Postdoctoral Research Associate, Aeronautics & Astronautics Department, University of Washington, Seattle, 2008-2009
6. Assistant Professor, Electrical & Computer Engineering, Texas Tech University, 2009-2010
7. Joined NCSU from Fall 2010
8. NSF CAREER Award, 2011
July 2014: New: Mini-Course on ‘Graph Theory in Power Systems’ in MTNS 2014pdf
2. Feb. 2014: My new book on Digital Control Systems with Philips & Nagle is out
4. Dec. 2013 - Course notes for ECE 451 Power Systems Analysis are now available
5. Dec. 2013 - Exo-GENI PMU testbed invited to the SmartAmerica Demo at US White House
Sept. 2013 - New NSF grant on Cyber-Physical Systems (CPS WAMS) - link
9. Jan. 2013 - Vice-chairing 2nd Virtual Control Conference
10. Sep. 2012 - New NSF grant on Sustainable Energy Pathways
11. Sep. 2011 - PMU research featured in American Institute of Physics – video link
12. Sep. 2011 - PMU data analytics article in IEEE Smart Grid Newsletter
13. Jun. 2011 - Invited talk at IEEE Haskell Energy Workshop, Univ. of Maine
14. May 2011 - Visiting Lund University, Sweden for LCCC Workshop
15. May 2010 - New NSF grant for PMU based model reduction
New Papers and Results
Dynamic equivalencing, validation
and contingency analysis of the WECC power system using PMU data (joint work with Southern
- Check out additional simulations of the above WECC model with wind integration in RTDS
News Release and Other Events
power dynamic modeling research with Chandra and Gayme featured in National
Geographic - linkNSF CPS Project
Overview for PI Meeting – poster, and Youtube videoJennifer’s
research on power grid visualization is featured in NCSU Alumni mag
Best Internet App Prize for power monitoring at US-Ignite - link
My recent talk at CMU – video link
My recent talk at TCIPG seminar in UIUC – video linkResearch featured in ‘Five to Watch’ article in NC State Engineering Magazine
Presentation to middle-school students and teachers on power systems via FREEDM Young Scholar Program
Springer book on smart grid controls featured in News ReleaseInterview in Discoveries & Breakthroughs Inside Science, American Institute of Physics, video linkNCSU-SRI Workshop on Cyber-Physical Applications in Smart Power Systems, 2011
Sciencedaily article- “New Approach to Modeling Power System for Better Monitoring” Jan. 2011
PMU Modeling work featured in News Release
My research activities span all branches of control theory with applications to electric power systems. In NCSU I am a part of the FREEDM Systems Center, currently investigating several system and control-theoretic research problems for the US power grid using Wide-area Measurement Systems (WAMS), or Synchrophasor technology, its cyber-physical implementation via service-oriented wide-area communication networks, and its integration with renewable energy sources such as wind energy.
I currently supervise 7 PhD, 2 MS and 2 undergraduate research students. Some specific topics of research that my group is currently looking into are:
1. Wide-area Monitoring and Control –Model identification, grid stress assessment, modal analysis, and wide-area control of power system networks using Synchrophasor measurements.
2. Distributed Algorithms & Communications for WAMS – Distributed asynchronous algorithms for real-time dynamic monitoring, oscillation detection, transient stability assessment, and distributed wide-area control of power systems using Synchrophasors.
3. Arbitration & Delay Robustness for Wide-Area Control – How multi-tasking communication networks lead to priority-based closed-loop delays, and how co-design can be used to counteract them for wide-area H-inf control
4. Verification & Validation of WAMS Applications - Experimental verification of real-time oscillation monitoring algorithms via Exo-GENI WAMS network testbed developed recently at NC State
5. Graph-Theoretic Algorithms for Localizing Cyber-attacks in Power Grids – Using topological properties and algebraic graph-theory for developing algorithms that can localize and control manipulative cyber-attacks in power system networks
6. Impacts of Wind Integration on Power System Dynamics – Constructing dynamic equivalents of large wind farms using Synchrophasor data available from high-voltage terminal buses of such farms, Coherency and Aggregation Models for Wind Power Systems,
7. Visualization and Analytics for Wide-Area Monitoring – Baselining, modal analysis, visualization and fault-detection using PMU data (funded by Renaissance Computing Institute, Duke Energy Progress)
Exo-GENI WAMS Testbed
As the number of PMUs scales up into the thousands in the next few years under the US Department of Energy’s smart grid demonstration initiative, it is rather intuitive that the current state-of-the art centralized communication and information processing architecture of WAMS will no longer be sustainable, and a distributed cyber-physical architecture will need to be developed. Motivated by this challenge, over the past year my group in collaboration with the Renaissance Computing Institute (RENCI) of UNC Chapel Hill have developed a wide-area communication testbed, referred to as the ExoGENI-WAMS testbed at the FREEDM Systems Center. The testbed consists of two layers:
1. A hardware-in-loop set-up consisting of Real-time Digital Simulators (RTDS) integrated with multi-vendor PMUs
2. A cloud-based multi-port, multi-user ExoGENI network that can transport PMU data from the RTDS to a network of virtual PDCs (phasor data concentrators), and execute distributed monitoring and control algorithms in real-time.
ExoGENI allows users to create custom topologies using resources from multiple federated providers via a control and management software called the Open Resource Control Architecture (ORCA) to orchestrate the networked cloud resource provisioning. It showcases the fact that the current design practice based on the centralized servers and IP-based Internet architecture is not an economical and efficient solution to satisfy the real-time requirement of processing large volumes of Synchrophasor data. Instead, an IaaS based solution is much more practical. ExoGENI service allows dynamic provisioning of virtual machines of different CPU and memory capacities with customized software images. With this capability, the WAMS communication network can automatically request for the right virtual machine to run the best real-time algorithm – eg. distributed oscillation monitoring, state estimation and wide-area controls.
The project is funded partly by the US Department of Energy, NSF CPS grant, and ABB Corporate Research.
Check out some links on Exo-GENI-WAMS:
at the US Ignite Event in summer 2013
2. White paper for the Smart America Cyber-Physical System Testbed Initiative organized by NIST
3. Check out the report for creating dynamic network topologies in Exo-GENI integrated with RTDS and PMUs
4. Preliminary experimental results for end-to-end delay verification
An introductory research brochure for my PhasorLab, featuring several recently procured PMUs, can be found here.
Please click here for a full list of my publications.
Some Poster and Powerpoint presentations about my work on phasor measurements can be found at the following links:
Electrical Distances and their Impacts on Power System Response, NC State Undergraduate Symposium, 2013New posters on localization by Tom, and PMU testbench by Matt
Distance Characterization and Disturbance Localization in Dynamic Networks, NC State Graduate Symposium, 2012Synchrophasor Research at FREEDM Systems Center, FREEDM Annual Site Visit, 2012
Visualization Interface Design for Wide-Area Monitoring, NC State Undergraduate Symposium, 2011
Research Overview in Fall ECE Retreat, NC State University, 2010
Seminar for Power Systems Group, University of Tennessee, Knoxville 2009
Texas Tech Graduate Seminar on Smart Grid Research, 2009
RCM Seminar, University of Washington, Seattle, 2009
NASPI Group Meeting, Charlotte, NC, 2008
CATS Technology Showcase, RPI, Troy, NY, 2008
IEEE PES General Meeting Student Poster Session, Tampa, FL, 2007
CATS Automation Open House, RPI, Troy, NY, 2006
NC State University:
1. ECE 451: Power Systems
Analysis – Fall
2. ECE 736: Power Systems Stability and Control – Fall 20102011, Spring 2013, 2014
3. ECE 726: Adaptive Control – Fall 2014
4. ECE 726: Optimal Control2012
Texas Tech University:
1. Power Systems Dynamics and Stability – Fall 2009
2. Wind Power System Modeling and Simulation – Spring 2010
· Committee member for IEEE CSS and CS Smart Grid Vision documentation.
· Associate Editor for IEEE Control System Society Conference Editorial Board (2013-present)
· Conference TPC or Operating Committee member for:
1. Vice-President for Industry Applications – American Control Conference 2016, Boston
2. IEEE Conference on Smart Grid Communications (Smartgridcomm) 2012-2013
4. International Conference on Cyber-Physical Systems (ICCPS, CPS Week) 2013
· Journal Reviewer for Automatica (Elsevier), IEEE Transactions on Automatic Control, IEEE Transactions on Power Systems, IEEE Transactions on Control Systems Technology, IEEE Transactions on Smart Grids, IEEE Transactions on Control and Network Systems, IEEE Power Electronics Letters, Journal of Process Control (Elsevier), Control Engineering Practice, International Journal of Hydrogen Energy (Elsevier), Mathematical Problems in Engineering, SIAM Journal on Control and Optimization, IEEE Transactions on Circuits and Systems, etc.
· Conference Reviewer for: IEEE Conference on Decision and Control, American Control Conference, IEEE MSC, IEEE PES General Meeting, IEEE ISGT, IEEE T&D Conference, IEEE Smartgridcomm, European Control Conference, IEEE Powertech, AIAA Conference on Guidance, Navigation and Control