Directory

Venkataramana Ajjarapu

  • Nicholas Professor

Main Office

1122 Coover
Ames, IA 50011-3060
Phone: 515-294-7687
Fax: 515-294-4263




Education

PhD, Electrical Engineering, University of Waterloo (1986)

MTech, Electrical Engineering, Indian Institute of Technology (1982)

BTech, Electrical Engineering, Jawaharlal Nehru Technological University (1979)

Interest Areas

Core Research Areas: Systems and controls, electric power and energy systems, power system security, voltage stability, wind and solar energy integration, real-time control of power and power electronics systems, distributed resources impact on electric grid

Strategic Areas: Energy infrastructure; data, decisions, network & autonomy

Selected Publications

  • Yang, Sheng and V. Ajjarapu. A Speed-Adaptive Reduced Order Observer for Sensorless Vector Control of Doubly-Fed Induction Generator-based Variable Speed Wind Turbines. IEEE Transactions on Energy Conversion , 2010, (forthcoming).
  • Konopinski, R. J., P. Vijayan, and V. Ajjarapu. Extended Reactive Capability of DFIG Wind Parks for Enhanced System Performance. IEEE Trans. Power Systems 24, no. 3, (2009): 1346,1355. Zhang, Bai Hua Pei and V. Ajjarapu. A Novel Parameter Identification Approach via Hybrid Learning for Aggregated Load Modeling. IEEE Transactions on Power Systems 24, no. 3, (2009): 1145,1154.
  • Konopinski, R. J., P. Vijayan, and V. Ajjarapu. Extended Reactive Capability of DFIG Wind Parks for Enhanced System Performance. IEEE Transactions on Power Systems 24, no. 3, (2009): 1346,1355.
  • Song, H., B. Lee, and V. Ajjarapu. Determination of Control Strategies Against Undesired Zone 3 Relay Operation With Respect to Voltage Collapse. IET Generation Transmission and Distribution 3, no. 2, (2009): 164,172.