DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING
PONDICHERRY ENGINEERING COLLEGE
PONDICHERRY




Dr.S.Himavathi, B.E.,M.E.,Ph.D
Professor
Phone: 0413-2655281-288, Extn.:504
E-mail: himavathi@pec.edu




Educational Profile:
Ph.D.(2003)
Specialization : Fuzzy Modelling and Implementation for Non-linear systems
Class : Highly Commended
Institution : College of Engineering, Chennai
University : Anna University
 
M.E(1989)
Course : Instrumentation
Class : First Class
Institution : MIT, Chennai
University : Anna University
 
B.E(1984)
Course : Electrical and Electronics Engineering
Class : First Class
Institution : College of Engineering, Chennai
University : Anna University
 
 

Publications:
International Journals:
  1. K.Sedhuraman, S.Himavathi and A.Muthuramalingam, (2013) 'Neural Learning Adaptive System Using Simplified Reactive Power Reference Model based Speed Estimation in Sensorless Indirect Vector Controlled Induction Motor Drives', Archives of Electrical Engineering, Vol.62(1), pp.25-41

  2. K.Sedhuraman, S.Himavathi and A.Muthuramalingam, (Jun. 2012) 'Reactive Power based Model Reference Neural Learning Adaptive System for Speed Estimation in Sensor-less Induction Motor Drives', The Journal of Engineering Research, Vol. 9, No. 2, pp. 17-26.

  3. J.Pradeep, E.Srinivasan and S.Himavathi(2012), "Hybrid Features and Novel Training Strategy for Performance Enhancement of Neural Network based Handwritten English Characters Recognition System", Wulfenia Journal, vol. 19, Issue. 11, pp.287-311, November 2012. ISSN: 1561-882X

  4. J.Pradeep, E.Srinivasan and S.Himavathi (2012), "Neural network based Recognition System Integrating Feature Extraction and Classification for English Handwritten Characters", International Journal of Engineering: TRANSACTIONS B-Applications, vol. 25, no. 2, pp.95-101, May 2012. ISSN: 1025-2495

  5. A.Venkadesan, S.Himavathi and A.Muthuramalingam, (2012), "Performance comparison of neural architectures for online flux estimatiobn for Sensorless Vector controlled IM Drives", Neural Computing Applications, Springer, Aug 2012, DOI 10.1007/s00521-012-1107.

  6. A.Venkadesan, S.Himavathi and A.Muthuramalingam, (2012) " A Robust RF-MRAS based Speed estimator using Neural Network as a reference model for Sensorless Vector controlled IM Drives", Control Theory and Informatics-IISTE, Vol. 2 No. 3,2012, pp.1-12. ISSN 2225-5774.

  7. K.Sedhuraman, A.Muthuramalingam and S.Himavathi (2011) " Performance comparison of Neural architectures for online speed estimation in sensorless IM Drives ", World Academy of Science, Engineering and Technology,Vol 60,2011, pp.1318-1325.

  8. M.Nandhini Gayathri, S.Himavathi and R.Shankaran (2011), "Parameter Estimation for Performance Enhancement of Indirect Field oriented Induction motor Drives: A survey", International journal of Electrical and Power Engineering, Vol 5. No 2, pp.65-73.

  9. A.Venkadesan, S.Himavathi and A.Muthuramalingam, (2011), "Novel SNC-NN-MRAS Based Speed Estimator for Sensorless Vector Controlled IM Drives", International Journal of Electrical and Electronics Engineering, Vol.5, No. 2,pp. 73-78.

  10. S.Krishnaraj and S.Himavathi(2011) "A Hybrid switching loss reduction technique along with independent control of two three phase loads for a nine switch space vector modulated inverter",International journal of Engineering Science and Technology, Vol.3, No.3 March 2011,pp. 2261-2270.

  11. J.Pradeep, E.Srinivasan & S.Himavathi (2011) "Diagonal Based Feature Extraction for Handwritten Alphabets Recognition Using Neural Network", International journal of computer science and Information Technology(IJCSIT), Vol 3, No 1, Feb 2011, pp.27-38

  12. K.Sedhuraman, A.Muthuramalingam and S.Himavathi (2010) " Single Neuron cascaded Neural Network Model based Speed estimation for Sensorless Induction motor Drives", ACEEE International Journal of Recent trends in Engineering and Technology,Vol 4,No.3, Nov 2010,pp.115-119.

  13. A.Chitra, S.Himavathi, A.Muthuramalingam (2010), "Design and FPGA Implementation of Rotor Resistance Estimator using Neural Learning Algorithms for Induction motor Drives", International journal of computational Intelligence Research,Vol.6,No. 4, pp.871-878.

  14. A.Venkadesan, S.Himavathi and A.Muthuramalingam, (2010), "Design of Feed-Forward Neural Network Based on-line Flux estimator for Sensorless Vector controlled Induction Motor Drives", ACEEE International Journal of Recent trends in Engineering and Technology, Vol 4,No.3, Nov 2010,pp.110-114.

  15. J.Pradeep, E.Srinivasan & S.Himavathi (2010) "Diagonal Feature Extraction Based Handwritten Character System Using Neural Network", International journal of computer applications, Vol 8, No 9, 2010, pp.17-22

  16. A.Muthuramalingam & S.Himavathi (2009) "Evaluation of Power factor corrected AC-DC Converters and controllers to meet UPS Perfarmance index", International journal of electronics circuits and systems, Vol 3, No 1, 2009, pp.57-65

  17. S.Himavathi, A.Muthuramalingam (2009), "FPGA Implementation of Neural Network Based On-line Stator Resistance Estimator for Induction Motor Drives", CiiT International journal of Artificial Intelligent systems and machine learning, July 2009

  18. A.Muthuramalingam, S.Himavathi (2007), 'Performance Evaluation of Neural Network Based General purpose Space Vector Modulator", International Journal of Electrical, computer and systems Engineering, Vol.1, No.1,pp.19-26.

  19. A.Muthuramalingam, S.Himavathi, E.Srinivasan (2007), 'Neural Network implementation using FPGA-Issues and applications', International Journal of Information Technology, Vol.4,No.2, pp.86-92.

  20. S.Himavathi, D.Anitha and A.Muthuramalingam,(2007) 'Feed forward Neural Network implementation in FPGA using Layer Multiplexing for Effective Resource Utilization', IEEE Transactions on Neural Networks,Vol 18, No.3, May 2007, pp-880-888.

  21. Himavathi S. and Umamaheswari B.(2003) 'A Multi-step Approach for Modeling MIMO Systems from Input-Output Data', AMSE Journal on Advances in Modeling, Series C, France. Vol. 58. no. 3, pp.55.

  22. Himavathi S. and Umamaheswari B. (2002), 'Fuzzy Modeling and Control of a Three Phase Induction Motor Driven Pump', AMSE Journal on Modeling, Measurement and Control-Series A, France Vol.75,No., pp.33-48.

  23. Himavathi S. and Umamaheswari B. (2001), 'New Membership Functions for Effective Design and Implementation of Fuzzy Systems', IEEE Trans. on Systems, Man, and Cybernetics-Part A: Systems and Humans, Vol.31, No.6, pp. 717-723.


National Journals:
  1. A.Venkadesan, and S.Himavathi (2012) "Flux Estimation Methods for High Performance Induction Motor Drives-A Survey', Electrical India Magazine,Vol. 52 No. 4,2012, pp.116-129

  2. B.Gangadharan and S.Himavathi(2007)"Performance comparison of control strategies to DC-DC converters", Journal of Systems science and engineering, Special issue on neural network and its applications, Vol 16,No1,Nov 2007, pg-61-65.

  3. Himavathi S. and Umamaheswari B.(2003), 'Implementation of Fuzzy Systems Using Micro processors/controllers', IETE Journal of Research, India.Vol 49, No.5 Sept-Oct 2003, pp. 281-287

  4. Himavathi S. and Umamaheswari B.(2002), 'Dynamic Fuzzy Models with Better System Insight', Journal of Institution of Engineers, India. Vol.83, Dec , pp.230-236.


International Conferences:
  1. J.Pradeep, E.Srinivasan, S.Himavathi (2011), "Neural Network Based Handwritten Recognition system without feature extraction", International Conference on compuer communication and Electrical technology,-ICCCET 2011, 18-19 March 2011, pp. 40-44.

  2. J.Pradeep, E.Srinivasan, S.Himavathi (2011), Diagonal Based Feature extraction for Handwritten Character Recognition System using Neural Network, Third International Conference on Electronics computer technology(ICECT 2011) pp. 4-364 to 4-368.

  3. S.Himavathi, K.Sedhuraman and A.Muthuramalingam (2010), "Neural Learning Algorithm for MRAS based Speed Estimation using Reactive Power Technique in Sensor-less IM Drives", Proceedings of International Conference on System Dynamics and Control (ICSDC-2010), Manipal Institute of Technology, Manipal university, Manipal, pp.91-95

  4. A.Muthuramalingam, A.Venkadesan and S.Himavathi (2010), "On-Line Flux Estimator Using Single Neuron Cascaded Neural Network Model for Sensor-less Vector Controlled Induction Motor Drives", Proceedings of International Conference on System Dynamics and Control (ICSDC-2010), Manipal Institute of Technology, Manipal university, Manipal, pp.96-100

  5. R.Pushpavalli,E.Srinivasan and S.Himavathi(2010), "A New Nonlinear Filtering Technique for Image Denoising" International Conference on Advances in Recent Technologies in Communication and Computing",ACEEE Conference, Kottayam,Kerala October 2010,pp.1-4

  6. A.Venkadesan, K.Sedhuraman, S.Himavathi, A.Muthuramalingam (2009), "Comparison of feedforward and cascade neural architectures for flux estimation in vector controlled induction motor drives", Proceedings of TIMA-2009, MIT campus, Anna university, Chennai, pp.55-59

  7. A.Chitra, S.Himavathi, A.Muthuramalingam (2009), "Identification of optimal rotor resistance estimator for vector controlled IM drives", Proceedings of TIMA-2009, MIT campus, Anna university, Chennai, pp.35-41.

  8. P.Thillaikarasi, A.Muthuramalingam, S.Himavathi (2008) "Cascade Backpropagation Neural Networks based space vector Modulator" International Conference on Power Electronic Drives& Power Systems, Power Coin 2008, Sona Colllege of Technology, TN, PDR 25, pp 1 -6, March 2008.

  9. A.Chitra, S.Himavathi, A.Muthuramalingam(2008) "Performance comparison Neural Networks Learning Strategies for Rotor Resistance Estimation in Induction Motor Drives" International Conference on Power Electronics Drives and Power Systems, 2008, Sona College of Technology ,T.N, .PEDRIO PP 1- 6, March 2008.

  10. S.Himavathi and K.Sivanagaraju (2007), "Design and DSP based full order flux observers for speed sensorless induction motor drives", Proceedings of International Conference on Modelling and Simulation, CITICOMS 2007, Aug 27-29, 2007

  11. B.Gangadharan and S.Himavathi (2007), "Performance comparison of different control strategies to DC-Dc Converter", International Conference on "Recent Advances and application of Computer in Electrical Engineering", Bikaner, Rajasthan, pp.493-494

  12. A.Muthuramalingam, Divya Kasivi Reddi, S.Himavathi,(2006) "Analysis and Design of Compensators for Indirect Field Oriented Controlled Induction Motor Drive", International Conference on Power Electronics, Chennai, December 2006, pp. 98-103.

  13. A. Muthuramalingam, M. Balaji and S. Himavathi, (2006) "Selective Harmonic Elimination Modulation Method for Multilevel Inverters", India International Conference on Power Electronics, Chennai, December 2006, pp. 40-45.

  14. V.Sathyanathan , S.Himavathi and A.Muthuramalingam (2005), 'Fuzzy Duty Ratio controller for torque ripple reduction of DTC IM drives' Proceedings of International Conference on emerging technologies in intelligent system and control (EISCO 2005), Coimbatore , India, 5-6 Jan, pp 333-339.

  15. D.Sivaranjani, A.Muthuramalingam, S.Himavathi (2005), 'Space Vector Modulation of a Voltage fed Inverter Using ANN', IEEE International Conference (INDICON 2005) , Dec 2005, pp.487-491.

  16. S.Senthil kumar, S.Himavathi and B.Geetalakshmi,(2005) 'DSP based Implementation of Estimators for Sensorless Vector controlled Drives', National Power Electronic Conference, NPEC 2005, IITK, India, Nov2005.

  17. R.Subha and S.Himavathi (2004), 'Neural Network based estimators for sensorless DTC drives' Proceedings of CISCON 04, Manipal, India, Nov 2004

  18. Easwara Muralidhar.J and S.Himavathi (2004), 'Vector control of converter inverter fed induction motor drive', Proceedings of IEEE-PECON Conference, HCE, Chennai., Feb, pp. 52-56.

  19. Himavathi S. and Umamaheswari B. (2002), 'FPGA Based Fuzzy Computation Accelerator', Proc. IEEE World Congress on Computational Intelligence (WCCI 2002), Hawai Islands, USA.

  20. Himavathi S. and Umamaheswari B. (2002), 'Implementation of Nonlinear Fuzzy Models Using Microcontrollers', in Advances in Soft Computing-AFSS 2002, LNAI 2275, Pal N.R. and Sugeno M., Eds. Springer-Verlag Berlin Heidelberg, pp.55-61.

  21. Himavathi S. and Umamaheswari B. (2001), 'A Multi-step Approach for Modeling MIMO Systems from Input-Output Data', Proc. 27th Annual Conf. of IEEE Industrial Electronics Society (IECON 2001), Denver, Colorado, USA, pp.664-669.

  22. Himavathi S. and Umamaheswari B. (2001), 'Fuzzy Modeling and Control of a Three Phase Induction Motor Driven Submergible Pump', Proc. Int. Conf. on Trends in Industrial Measurements and Automation (TIMA 2001), Anna University, Chennai, India, pp.3.46-3.54.

  23. Himavathi S. and Umamaheswari B. (2001), 'Interpretable Fuzzy Models for Dynamic Systems', Proc. First International Conference on Mechatronics (ICOM'01), I IU, Malaysia, Vol.2, pp.514-523.

  24. Himavathi S. and Umamaheswari B. (2001), 'Nonlinear Discrete State Space Modeling Using Hybrid Technique', Proc. Int. Conf. On Mathematical Modelling, Bani Singh, Gupta U.S., Srivastava G.S., Gulati T.R. and Katiyar V.K., Eds. Tata McGraw-Hill, Industrial Mathematics, pp.346-352.

  25. Himavathi S. and Umamaheswari B. (2000), 'Transparent Fuzzy Models from Input-Output Data', Proc. Int. Conf. on Control, Automation, Robotics and Vision, (ICARCV 2000), NTU, Singapore, FM7.1#168.pdf.

  26. S.Himavathi and B.Umamaheswari (1999), 'Performance comparison of fuzzy control with PID control for a system with multiple load changes', Proceedings of the International Conference on Trends in Industrial Measurements and Automation', M.I.T, Chennai, Jan 7-11, pp.385-392.


Experience:
Professional Experience:
  1. "Professor, Department of Electrical and Electronics Engg, Pondicherry Engg College, Puducherry (2011 - till date)
  2. "Professor and Head Department of Electrical and Electronics Engg, Pondicherry Engg College, Puducherry (2008-2011)
  3. "Assistant Professor,Department of Electrical and Electronics Engg, Pondicherry Engg College, Puducherry (1999-2007)
  4. "Lecturer,Department of Electrical and Electronics Engg, Pondicherry Engg College, Puducherry (1990-1999)
  5. "Assistant Engineer,Instrumentation and control,Tata Consulting Engineers, Bangalore. (1987-89)
  6. "Teaching /Research Fellow, Madras Institute of Technology, AnnaUniversity, Chennai.(1984-1987)

Academic and Administrative Responsibilities:
  1. "Head of the Electrical and Electronics Engg Department,Pondicherry Engg College (2008-2011)
  2. "Chairperson, Board of Studies, Pondicherry Central University, Puducherry (2008-2011)
  3. "Chairperson, EEE Evaluation Board, Pondicherry Central University, Puducherry (2008-2011)
  4. "Vice chairperson, PG studies, EEE Department, Pondicherry Engg College, Puducherry, (2008-2011)
  5. "Nodal Officer-Equity Action Plan, TEQIP, Pondicherry Engg College
  6. "Institute Co-ordinator, QIP
  7. "Dean(Research), PEC

Projects and Research Guidance :
Areas of Research:
  1. Neural Network Applications to Electrical Drives
  2. Image Processing/Pattern Recognition using Neural Networks
  3. Fuzzy Modelling and Control
  4. Pattern Recognition using Intelligent Techniques
Funded Projects
Role :Principal Investigator
Topic :AI Techniques for Electrical Drives
Agency :AICTE, New Delhi
Amount :Rs.8 lakhs
Duration :Three Years
 
M.tech Project Guidance
  1. Neural Network Architectures for Device Identification Using Harmonic Signatures, M.Tech(EDC), 2013
  2. Performance Enhancement of Direct Vector Controlled IM Drives using NN Based Estimators, M.Tech(EDC), 2012.
  3. Techniques for Improvements in Performance and Efficiency of Space Vector Modulated Inverters, M.Tech(EDC), 2011.
  4. Rotor Time Constant Estimator for Induction Motor Drives, M.Tech(EDC), 2011.
  5. Reactive Power Based Technique for Rotor Resistance Estimation in Vector Controlled Induction Motor Drives,M.Tech(EDC), 2010.
  6. Neural Based Flux Estimators for Vector Controlled Induction Motor Drives, M.Tech(EDC), 2009.
  7. Neural Network Approach for Speed Estimation in High Performance Sensorless IM Drives, M.Tech(EDC), 2009.
  8. Performance Enhancement of Vector Controlled Induction Motor Drives using Neural Network Based On-Line Estimators, M.Tech(EDC), 2008.
  9. Design of MRAS and Observer Based On-Line Estimators for Induction Motor Drives, M.Tech(EDC), 2008.
  10. NN Based Modulator for VSI Drives", M.Tech(EDC), 2008.
Ph.D Completed titles
  1. Design And Performance Analysis Of Neural Network Based Speed Estimators For Sensorless Vector Controlled Induction Motor Drives.
  2. Design and Validation of Neural Network Based Flux Estimator for Various Applications in Vector Controlled IM Drives.

Professional Activities:
Reviewer of the following:
  1. "IEEE Industrial Electronic Society-International Conference IECON conducted every year
  2. "AMSE journal -France
  3. "International journal of Neural Networks-Elsevier publishers
  4. "International conference on Neural Networks ICON
  5. "Reviewer for International Conference IICPE 2007.

Courses Taught:
  1. Microprocessors (UG)
  2. Digital Design using VHDL (UG)
  3. Analog and Digital Integrated Cicuits (UG)
  4. Neural Networks (PG)
  5. Fuzzy Control (PG)
  6. Microcontrollers (PG)