Raja Ayyanar

Ayyanar_RajaWEBAssociate Professor
ASU Directory Profile

ERC 587

Research expertise
Power electronics, DC-DC converters and power management, power conversion and control for renewable energy interface, especially PV and wind, smart grid technologies, plug-in electric vehicles, and motor drives

Rajapandian Ayyanar joined the Arizona State University faculty as an assistant professor in August 2000. He received a B.E. in electrical engineering from P.S.G. College of Technology, India in 1989, an M.S. in power electronics from the Indian Institute of Science in 1995, and a Ph.D. in power electronics from the University of Minnesota in 2000. He has published over 70 journal and conference papers in the area of power electronics and renewable energy integration, and he holds two U.S. patents. Professor Ayyanar was awarded the ONR Young Investigator Award in 2005.

Collaborations and industry affiliations
Modeling, analysis and control methods in support of Flagstaff energy storage project, Arizona Public Service
Smart distribution energy management system and controllers using an Intel platform, Intel Corp.
High penetration of photovoltaic generation study – Flagstaff community power, Arizona Public Service
PSERC collaborative proposal for a Phase III IUCRC, NSF-ENG
Power system operation and planning for enhanced wind generation penetration, DOE, Golden Field office
ERC for Future Renewable Electric Energy Delivery and Management (FREEDM) Systems, North Carolina State University
Phase 3 design, implementation and dissemination of multidisciplinary online java digital signal processing materials, NSF-HER-DUE
SRP-PSERC Project, Salt River Project
Arizona solar market and analysis tool, VPREA cost share

Professional preparation
Ph.D., power electronics, University of Minnesota, 2000
M.S., power electronics, Indian Institute of Science, 1995
B.E., electrical engineering, P.S.G. College of Technology – India, 1989

Recognition and awards
ONR Young Investigator Award, 2005

Selected publications
G.T. Heydt, R. Ayyanar, K.W. Hedman, V. Vittal, “Electric Power and Energy Engineering: The First Century,” Proceedings of the IEEE, vol. 100, Special Centennial Issue, 2012, pp. 1315 – 1328.

D. Gautam, L. Goel, R. Ayyanar, V. Vittal, and T. Harbour, “Control strategy to mitigate the impact of reduced inertia due to doubly fed induction generators on large power systems,” IEEE Transactions on Power Systems, vol. 26, pp. 214-224, Feb. 2011.

A. K. Jain, R. Ayyanar, “PWM control of dual active bridge: Comprehensive analysis and experimental verification,” IEEE Transactions on Power Electronics, vol. 26, pp. 1215-1227, Apr. 2011.

D. Zhao, V. S. S. Pavan Kumar Hari, G. Narayanan, and R. Ayyanar, “Space-vector-based hybrid pulsewidth modulation techniques for reduced harmonic distortion and switching loss,” IEEE Transactions on Power Electronics, vol. 25, pp. 760-774, Mar. 2010.

R. Ayyanar, H. K. Krishnamurthy, and X. Mao, “Optimal variable switching frequency scheme for reducing switching loss in single-phase inverters based on time-domain ripple analysis,” IEEE Transactions on Power Electronics, vol. 24, pp. 991-1001, Apr. 2009.

R. Ayyanar and N. Mohan, “Zero Voltage Switching DC-DC Converter,” U.S. Patents 6,611,444 and 6,310,785.