SMART Power Flow Controller: a Necessity for Future Grid

#power #flow #controller #smart #grid

Abstract: The sources of power generation have evolved in recent years from coal and nuclear to include a variety of renewable sources. Due to the intermittent nature of renewable generation, the power flow pattern in the electric grid has changed. Free flow of electricity can make some transmission lines underloaded and some overloaded. Tripping an overloaded line is not always a good option, since this may contribute to a cascaded failure of the grid.


The desired solution is to use a SMART Power Flow Controller (SPFC) that increases the flow of power in an underloaded line and decreases the flow of power in an overloaded line, preventing it from tripping and possibly creating a blackout. Strategic placement of SPFCs will make the future grid more reliable, efficient and less of a contributor to global warming than what it is now. Some of the features of a SPFC are high reliability, high efficiency, low installation and operating costs, component non-obsolescence, fast enough response for utility applications, high power density, interoperability, and easy relocation to adapt to changing power system’s needs while providing the optimal power flow control capability.


The presentation is designed to provide the basic principles of power flow control theory, an overview of the most commonly used power flow controllers, and future trends. The audience will hear from an expert who actually designed and commissioned a number of power electronics-based FACTS controllers since its inception in the 1990s.

  Date and Time




  • Date: 22 Nov 2018
  • Time: 06:00 PM to 08:00 PM
  • All times are (GMT-05:00) Canada/Eastern
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  • École de technologie supérieure
  • 1100, rue Notre-Dame Ouest
  • Montréal , Quebec
  • Canada H3C 1K3
  • Room Number: A-1150
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  • Co-sponsored by PES, PELS and IAS
  • Starts 05 September 2018 06:28 AM
  • Ends 22 November 2018 11:59 PM
  • All times are (GMT-05:00) Canada/Eastern
  • No Admission Charge


Kalyan K. Sen, PhD, PE, MBA Kalyan K. Sen, PhD, PE, MBA


SMART Power Flow Controller: a Necessity for Future Grid


Kalyan Sen, a newly selected Fulbright Scholar, is the Chief Technology Officer of Sen Engineering Solutions, Inc. that specializes in developing SMART power flow controllers—a functional requirements-based and cost-effective solution. He spent 31 years in academia and industry and became a Westinghouse Fellow Engineer. He was a key member of the Flexible Alternating Current Transmission Systems (FACTS) development team at the Westinghouse Science & Technology Center in Pittsburgh. He contributed in all aspects (conception, simulation, design, and commissioning) of FACTS projects at Westinghouse. He conceived some of the basic concepts in FACTS technology. He has authored or coauthored more than 25 peer-reviewed publications, 8 issued patents, a book and 4 book chapters in the areas of FACTS and power electronics. He is the coauthor of the book titled, Introduction to FACTS Controllers: Theory, Modeling, and Applications, IEEE Press and John Wiley & Sons, Inc. 2009, which is also published in Chinese and Indian paperback editions. He is the co-inventor of Sen Transformer. He received BEE, MSEE, and PhD degrees, all in Electrical Engineering, from Jadavpur University, India, Tuskegee University, USA, and Worcester Polytechnic Institute, USA, respectively. He also received an MBA from Robert Morris University, USA. He is a licensed Professional Engineer in the Commonwealth of Pennsylvania. He is a Distinguished Toastmaster who led District 13 of Toastmasters International as its Governor to be the 10th-ranking District in the world in 2007-8.


Kalyan, a Senior Member of IEEE, has served the organization in many positions. Under his leadership, IEEE Pittsburgh Section and its three chapters (PES, IAS and PELS) received Best Section and Chapter Awards. His other past positions included Editor of the IEEE Transactions on Power Delivery (2002 – 2007), Technical Program Chair of the 2008 PES General Meeting in Pittsburgh, Chapters and Sections Activities Track Chair of the 2008 IEEE Sections Congress in Quebec City, Canada, PES R2 Representative (2010 and 2011) and Member of the IEEE Center for Leadership Excellence (CLE) Committee (2013, 2014). He has been serving as an IEEE PES Distinguished Lecturer since 2002. In that capacity, he has given presentations on power flow control technology more than 140 times in 15 countries. He is an inaugural class (2013) graduate of the IEEE CLE Volunteer Leadership Training (VOLT) program. Kalyan is the recepient of the IEEE Pittsburgh Section PES Outstanding Engineer Award (2004) and Outstanding Volunteer Service Award for reviving the local Chapters of PES and IAS from inactivity to world-class performance (2004). He has been serving as the Special Events Coordinator of the IEEE Pittsburgh Section for the last decade. He is the Region 1-3 & 7 Coordinator of Power Electronics Society. For more details, click on


Recent publications:

  • K. Sen, M. L. Sen, “Modeling Of The Sen Transformer Using An Electromagnetic Transients Program,” How2Power Today e-magazine, March, 2018.

  • K. Sen, M. L. Sen, “Phase Angle Regulation Versus Impedance Regulation: Which Offers Greater Control Of Power Flow On the Grid?,” How2Power Today e-magazine, February, 2017.