- Power System Optimization and Stability
- Optimal Power Flow Distribution
- Microgrid Control and Optimization
- HVDC Systems and Fault Protection
- Photovoltaic System Optimization Techniques
- Real-time simulation and control systems
- Smart Grid Security and Resilience
- Smart Grid Energy Management
- Power Systems and Technologies
- Frequency Control in Power Systems
- Smart Grid and Power Systems
Virginia Tech
2015-2023
Amazon (United States)
2022
Dominion (United States)
2016
Motivated by the Federal Energy Regulatory Commission's (FERC) recent direction and ever-growing interest in cloud adoption power utilities, a Task Force was established to assist system practitioners with secure, reliable cost-effective of technology meet various business needs. This paper summarizes drivers, challenges, guidance, best practices for systems from Force's perspective, after extensive review deliberation its members, including grid operators, utility companies, software...
This paper presents a new method for studying electromechanical transients in power systems using three phase, combined transmission and distribution models (hybrid models). The methodology individual phases of an electric network associated unbalance load generation. Therefore, the impacts unbalance, single phase distributed generation line impedance on can be studied without electromagnetic transient simulation (EMTP) programs. implementation this software is called Three Phase Dynamics...
The number of grid-connected rooftop solar photovoltaic (PV) systems is expected to increase significantly in the next few years. Many studies have been conducted on analyzing transmission level voltage stability with high PV penetration, and recent efforts also analyzed at medium- low-voltage distribution levels. However, those not considered detailed secondary modeling extending from primary feeder service transformer all way through connections drops. This study investigates how variable...
The number of grid connected rooftop solar PV systems is expected to increase significantly in the next few years. Many studies have been conducted on analyzing transmission level voltage stability with high penetration, and recent efforts also analyzed at medium low distribution levels. However, those not considered detailed secondary modeling extending from primary feeder service transformer all way through connections drops. This work investigates how variable generation impacts voltages...
Communication is the main player in smart grid and future of power system has been tied to open communication infrastructures. Although provides many advantages, it also introduces new challenges which cyber security one them. This work studies effect Time-Delay (TD) attacks on performance Automatic Generation Control (AGC) a multi-area system. In this study, three-area developed then time delay are simulated evaluate AGC scheme during attacks. Simulation results show that TD can effectively...
In this paper a new approach for studying slow transients, such as electromechanical using three phase models of power systems is presented. Typically programs used transients assume positive sequence network model, limiting their application to the study balanced systems. While electromagnetic simulation software can be in unbalanced networks, large resource and time intensive. The presented here overcomes aforementioned limitations existing provides means complete electric network. Of many...
The US electric grid is facing operational, stability, and security challenges. Transmission system operators need some measure of visibility into distribution renewable generation. Distribution generation needs to support transmission voltage. experiencing an expansion in measurement systems. How take full advantage this defend against attacks, both cyber physical, poses additional This paper introduces software designed meet these At the center Integrated System Model (ISM) that spans from...