The energy systems team has been engaged in energy research for the past 15 years. An agent based, integrated system has been developed for representing and analyzing a wide array of topics:
- Interdependencies of infrastructures: transportation, communication, electrical, societal and health
- Demand side energy mangement through generation of detailed spatio-temporal demand profiles based on daily activities, locations and demographics of individuals
- Development of computational methods and underlying theory to build a synthetic electrical grid for the US
- Reliability and vulnerabilities in the electrical grid caused by its structural attributes, human interaction, renewable sources (two-way flow of power), and natural disasters.
- Synchrophasor measurement based monitoring, protection and control of modern power networks
- Software: Framework and Models.
From safety and security point of view, it is extremely important to understand the structure of the grid, identify potential points of vulnerabilities and build redundancies around those vulnerabilities to make the electrical infrastructure more robust. We perform structural analysis and flow analysis of the electrical network to identify points of vulnerabilities.
Table Top Exercises
- A Table Top Exercise Involving Multiple Localized Targeted Insults to the Power Network. Barrett, S. Eubank, A. Marathe, M. Marathe, A. Phadke, J. Thorp, A. Vullikanti 2011. Effects of Multiple Local Network Insults: Vulnerabilities, Analysis and Recommendations. NDSSL Technical Report TR: 11-001
- National Planning Scenario 1: Effects of Hypothetical Improvised Nuclear Detonation on the Electrical Infrastructure. C. Barrett, S. Eubank, C. Y. Evrenosoglu, A. Marathe, M. Marathe, A. Phadke, J. Thorp, A. Vullikanti, 2013. Effects of Hypothetical Improvised Nuclear Detonation on the Electrical Infrastructure. Keynote Presentation. Invited paper for a Keynote address at the International ETG-Conference, Berlin, November 5-6.
Synchrophasor measurement based monitoring, protection and control
Synchrophasor measurements obtained from phasor measurement units (PMUs) have been extensively used in the monitoring, protection, and control of modern power systems. Some PMU-based applied research includes:
- Fault classification using only the voltage phasor of a PMU-only state estimator
- A methodology to validate the quality of PMU-data to be used by downstream applications
- Robust damping of inter-area oscillations using PMU data, linear matrix inequalities and decision trees
Other exploratory work using PMUs are:
- Creation of a partitioned linear state estimator that makes possible the integration of results obtained from independent linear state estimators
- Estimation of three-phase line parameters using a Kalman filter-based recursive regression
- Analyzing effects of different load models on a quadratic prediction algorithm
- A PMU placement scheme that integrates other placement algorithms
- Estimation of power system stress using metrics developed from PMU-data
We are building a pervasive computing enabled modeling environment for integrated national energy systems to support policy and decision making as it pertains to co-evolving socio-energy systems. Decision support systems built using this software will provide public policy makers as well as private stakeholders entirely new ways to design and architect next-generation energy systems. It will also help evaluate new ways to invest in renewable energy sources and assess the reliability and security of the emerging grid architectures. It is based on recent computational advances for modeling extremely large, complex, multi-scale socio-technical systems.