I am a Research Scientist and Lecturer in the Department of Mechanical Engineering at MIT.
My research aims to understand and infer the electric grid, to make it resilient and clean,
and to keep it working reliably in its multi-layered nature.
Currently, I am interested in exploring computationally
tractable and rigorous approaches for the stability assessment, electronics-based emergency control,
and resilient architecture design of renewable power grids and multi-microgrid networks. To address challenges in power systems,
I draw heavily tools from, and find ways to push back the existing boundaries of, control and optimization.
1. "Inverse Stability of
Power Systems" [pdf]
This paper introduces the notion of inverse stability, characterizing the set of equilibrium points which can be reached from a given initial state under the fluctuation of power injections and line strength.
This notion helps us effectively solve stability-guaranteed corrective action design and stability-constrained OPF problems.
2. "Structural Emergency Control Paradigm", IEEE Journal on Emerging and Selected Topics in Circuits and Systems, accepted 2017 [pdf][link]
This new control paradigm can save the grid without relying on load shedding which causes power interruption to customers. Instead, the
emergency state is driven to stable regime by relocating the operating condition through changing the impedances of a small set of lines...
3. "Toward Simulation-free Estimation of Critical Clearing Time", IEEE Trans. Power Systems, accepted 2016 [pdf][link]
This is among the first certificates for power systems transient stability without using any time-domain simulations...
4. "A Framework for Robust Assessment of Power Grid Stability and Resiliency", IEEE Trans. Automatic Control, accepted as a Full Paper, 2016 [pdf][link]
This paper presents robust certificates for the grids' stability w.r.t the fluctuation of power injections, and for the grids' ability to withstand a bunch sources of faults...
5. "Lyapunov Functions Family Approach to Transient Stability Assessment", IEEE Trans. Power Systems, vol. 31, no. 2, pp. 1269-1277, March 2016 [pdf] [link]
This work exploits advanced optimization techniques to significantly reduce conservativeness and computational complexity in the transient stability assessment...
Last updated 01/30/16
- Our paper, "Structural Emergency Control Paradigm" [pdf], was accepted to to publish in the IEEE JETCAS Special Issue on Complex Networks for Modern Smart Grid Applications
- Our paper, "Structural Emergency Control for Power Grids", was accepted to ACC2017 as an Invited Paper
- We won the Best Paper Award at the IEEE ICSET2016 for our paper "Robust stability assessment of renewable power grids". Congratulations, Kostya!
- Our paper, "Contraction Analysis for Nonlinear DAE Systems", was submitted to IEEE Trans. Automatic Control
- Our proposal, "Structual remedial actions: Enabling high-penetration renewable power grids through intelligent network control", has concept paper accepted by DOE IDEAS program
- Jan 2016: I will serve as the Technical Programme Chair for the 4th IEEE International Conference on Sustainable Energy Technologies 2016
- Jan 2016: The DOE proposal that I involved in writing with a big PANL-PNNL-MIT-Caltech team was funded. Congratulations!
- Jan 2016: Our paper, "Towards Electronics-based Emergency Control in Power Grids with High Renewable Penetration" [pdf], was accepted as an invited paper to ACC2016
- Jan 2016: Our paper, "A Framework for Robust Assessment of Power Grid Stability and Resiliency" [pdf], was accepted to publish on the IEEE Transactions on Automatic Control
- Jan 2016: Our paper, "Toward Simulation-free Estimation of Critical Clearing Time" [pdf], was accepted to publish on the IEEE Transactions on Power Systems
- Jul 2015: Our NSF proposal, "EAGER: Renewables: Collaborative Research: Market Designs for
Distribution Systems with High Renewable Penetration", was recommended for funding. Congratulations Vijay, Kostya and Takashi!
- Jun 2015: Our NSF proposal, "Collaborative Research: Computational Methods for Stability Assessment of Renewable Integrated Power Systems", was recommended for funding. Congratulations Kostya, Aranya and Dhagash!
- Jun 2015: I will be serving as the IEEE Boston Section Control Systems Chapter Chair
- Apr 2015: Our paper, "Lyapunov Functions Family Approach to Transient Stability Assessment", was accepted to publish on the IEEE Transactions on Power Systems
- Mar 2015: Three papers were submitted to IEEE CDC 2015
- Feb 2015: Our paper, "Geometry-based Estimation of Stability Region for A Class of Structure Preserving Power Grids", was accepted to IEEE PES General Meeting 2015
- Jan 2015: Our invited paper, "Synchronization Stability of Lossy and Uncertain Power Grids", was accepted to ACC 2015
- Jan 2015: Our paper, "Power Management for Electric Tugboats Through Operating Load Estimation", was accepted to publish on the IEEE Transactions on Control Systems Technology