Surender Reddy Salkuti received the Ph.D. degree in electrical engineering from the Indian Institute of Technology, New Delhi, India, in 2013. He was a Postdoctoral Researcher at Howard University, Washington, DC, USA, from 2013 to 2014. He is currently working as an Assistant Professor in the Department of Railroad and Electrical Engineering, Woosong University, Daejeon, Republic of Korea. His current research interests include power system restructuring issues, ancillary service pricing, real and reactive power pricing, congestion management, and market clearing, including renewable energy sources, demand response, smart grid development with integration of wind and solar photovoltaic energy sources, artificial intelligence applications in power systems, and power system analysis and optimization. He received Distinguished Researcher Award from Woosong University Educational Foundation, Republic of Korea in 2016 and POSOCO Power System Award (PPSA), India in 2013. He is a Member of IEEE and IEEE Power and Energy Society.
Abstract of Tutorial:
Optimal Power Flow (OPF) is a coupled nonlinear optimization problem which computes the optimal settings for electrical variables in a power system, for a given loading condition and system parameters. OPF is a highly nonlinear, non-convex, large scale, static optimization problem with both continuous and discrete control variables. Nowadays, the concerns are brewing up over fossil fueled generating plants and their part of play in global warming has pushed energy based research towards the utilization of green energy around the globe. Wind and solar energy sources are vital in this regard. Integration of these resources with the grid has seen a continuous increasing pattern. However, despite of their benefits, they also known to be highly uncertain and variable. Hence, its random nature and large scale integration into power system poses challenges to system operators and planners.
The incorporation of renewable energy resources (RERs) into electrical grid is a challenging problem due to their intermittent nature. This tutorial solves an OPF problem in a hybrid generation system. The primary components of hybrid power system include conventional thermal generators, wind farms and solar photovoltaic modules with storage batteries. The main critical problem in operating the wind farm or solar PV plant is that these RERs cannot be scheduled in the same manner as conventional generators, as they involve climate factors such as wind velocity and solar irradiation.
System operator can predict the uncertainty of wind, solar power/load by using wind, solar/load forecasts that incorporate data to predict wind, solar power and load prediction. In order to accommodate the unpredictable nature of renewable power, the productions and consumptions scheduled in an electricity market need to be modified during the actual operation of power system. These wind, solar and load forecast uncertainties require additional reserves to be procured and if required, deployed in real time. This involves both procurement as well as activation costs. This tutorial presents a strategy for solving the OPF problem taking into account the impact of uncertainties in wind, solar PV and load forecasts.
Mr. B V Ravi Kumar is a Scientist (F) in RCI, DRDO. He has extensive reserach experience in the field of Power Electronics. He did his M.Tech in IIT Delhi and pursuing Ph.D. in IIT Hyderabad. His research activities are in Design and Development of Power Electronics and Drives for Aero-space vehicles.
Abstract of Tutorial:
Electrification is increasing in aero-space vehicles and thus moving total Aero-space industry towards All-Electric Aircraft converting propulsion and Control to Electric. The technology not only extends to aircrafts but also to space vehicles and space transportation.
Electrification technology poses lot of challenges to both Engineers and researchers in terms of Reliability, Power density and Robustness. In this line lot of research activities are going on in the world to realize high reliable, high power density electric propulsion and actuation systems to meet the needs of aerospace industry. The electrical actuation system need to be improved compared to hydraulic systems in terms of high servo stiffness, ruggedness and high torque/weight ratio. Similarly the power source, energy efficiency and redundancy features are the critical areas to be improved to make the electrical actuation and propulsion suitable for aero-space applications.
This topic covers various electrification technologies incorporated in actuation and propulsion of aero-space vehicles. Also it covers the futuristic space transportation, high bandwidth actuation and energy efficient drive topologies, fault-tolerant electric drive configurations applicable to aero-space vehicles.