Quick facts
Prof. Jayant Lal Bhattacharya is an Adjunct Professor at Mahindra University, with 32+ years in BHEL Corporate R&D (ending as Additional General Manager) and earlier work at Jyoti Ltd., followed by teaching at Muffakham Jah College of Engineering and Technology. He holds a Ph.D. in Electrical Engineering from the University of Auckland, M.Tech from IIT Kanpur and B.Tech from MANIT Bhopal, and teaches machine modelling, electrical machine design, power‑system reliability and power electronics. His research spans superconducting machines, cryogenics, traction‑motor design, power electronics and controls, electromagnetic fields, microgrids/smart grids and EVs, backed by multiple granted patents (flameproof‑motor torque–speed characteristics, lightweight commutators, early‑fault warning in turbogenerators, damper‑less superconducting generators), filed patents on large‑machine protection and superconducting transformers, copyrights on turbogenerator dynamics and traction‑motor design, and major DST‑sponsored superconducting generator projects plus extensive work on traction motors/generators, brushless excitation systems and power‑system protection for large turbo‑alternators.
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Jayant Lal Bhattacharya
Adjunct Professor
Prior to joining MU, J.L.Bhattacharya worked for over 32 years at Bharat Heavy Electricals Ltd. in the Corporate R&D Division, Hyderabad, from where he superannuated in year 2012 as an Additional General Manager. He was involved in research related electrical rotating machines, power systems, controls and power electronics. He was also involved in research related to superconducting machines. Thereafter, he worked as a Professor in an Engineering College affiliated to Osmania University, namely, Muffakham Jah College of Engineering and Technology for two years.
His current teaching and research interests are:
- Teaching: Machine modeling, Design of Electrical Machines, Reliability of Power Systems and Electronics.
- Research Interests: Superconducting Machines, Cryogenics, Traction motor design, Power Electronics and Controls, Electro Magnetic Fields, Power Systems, Microgrid/ Smartgrid, Electric Vehicles.
- Ph.D (Electrical Engg.), Auckland University, New Zealand, 1988.
- M.Tech (Electrical Engg.), IIT Kanpur, 1976
- B.Tech (Electrical Engg.), MA NIT, Bhopal, 1973.
SELECTED CONTRIBUTIONS:
- J.L.Bhattacharya, N.Yadaiah, “Sliding mode controller for power system stability and voltage regulation”, 38th National Systems Conference, Nov 2014, Hyderabad, ISBN No: 9789351072973, Elsevier, pp.114-120.
- N.Yadaiah, Ch.V.S.R.K.Babu, J.L.Bhattacharya, “An intelligent robust excitation controller for stability of power system”, paper submitted in International Journal of Emerging Electric Power System, Manuscript No. 1110, Berkley Electronic Press 2005.
- N.Yadaiah, A.Ganga Dinesh Kumar, J.L.Bhattacharya, “Fuzzy based coordinated controller for power system stability and voltage regulation”, Electric Power Systems Research, Vol.69 year 2004, pp. 169-177.
- N.Yadaiah, Ch.V.S.R.K.Babu, J.L.Bhattacharya, “Fuzzy logic controllers – An application to power systems”, IEEE Conference SMCia/03, June 23-25, 2003, New York, USA, Bringhamton University, pp. 1-6.
- T.Suryanarayana, J.L.Bhattacharya, K.S.N.Raju, K.A.Durga Prasad, “Development and performance testing of a 200 kVA Damperless Superconducting Generator”, IEEE Trans. On EC, Vol.12, No.4, December 1997, pp 330-336.
- U.K.Choudhury, T.Suryanarayana, J.L.Bhattacharya, K.S.N.Raju and Prof.K.Venkatratnam, “Field analysis of Superconducting Generator”, Fourth International conference on Electrical Rotating Machines, ELROMA-96, 19-20 Januray 1996, Bombay.
- BHEL Patent “Damperless Superconducting Generator”, patent filed.
- J.L.Bhattacharya and T.Suryanarayana, “Superconducting Generator design optimisation with rotor slot shaping and graded superconducting winding”, International conference on Evolution and Modern Aspects of Synchronous Machines, Zurich, Switzerland, August 1991.
- J.L.Bhattacharya and Prof.J.L.Woodward (Univ.of Auckland) “Excitation balancing of a self-excited induction generator for maximum power output”, IEE Proc. Part C, Vol.135, No.2, March 1988, pp 88-97.
- J.L.Bhattacharya, “Real time simulation of thermal power plant and power system using micro-alternator and microprocessor”, University of Auckland, 1986, G.T.Murray Award organized by IPENZ. Was awarded the G.T.Murray Award for second consecutive year 1986.
- T.L.Liew and J.L.Bhattacharya, “Automated paralleling of Self Excited Induction Generator”, University of Auckland, September 1985, G.T.Murray Award organized by IPENZ. Shared the G.T.Murray Award (of IPENZ New Zealand) of year 1985 with Mr.T.L.Liew.
LIST OF PAPERS IN CONFERENCES:
Patents and Copyrights
Granted patents:
- Torque speed characteristics of flame proof motor – patent granted
- Commutator with minimum weight for strategic application – patent granted.
- System for providing early warning and advice of a fault in turbogenerators – patent granted.
- A damper less superconducting generator – patent granted.
Patents filed:
- Out of step protection of synchronous motor (For 12MW motor supplied to Oman) – patent filed.
- High temperature superconducting transformer – patent filed.
- Protection of large generator from asynchronous operation – patent filed.
List of copyrights:
- “Frequency response of turbogenerators”
- “Fault clearance operation on turbogenerators”
- “Analysis of wrong synchronization of turbogenerators”
- “Asynchronous operation of TGs”
- “DC Traction Motor Design and Performance TM01”
- “Color drawing of high temperature superconducting motor”.
- 32-years of working in industry Bharat Heavy Electricals Ltd. In Corporate R&D Division, Hyderabad, India.
- 4-years of working in industry, Jyoti Ltd. Baroda, in Research & Development, Baroda, India.
- 2-years of teaching in Engineering college, affiliated to Osmania University, namely, Muffakham Jah College of Engineering and Technology, Hyderabad, India
Superconducting Machines
- 200 kW liquid helium cooled superconducting generator, in year 1995;
- 5MW liquid helium cooled superconducting generator, in year 2001;
- 1 MVA, 33/6.6 kV, liquid nitrogen cooled superconducting transformer, year 2008;
- 200 kW, helium gas cooled superconducting motor, in year 2010.
Traction motors and generators
- 300 kW AC traction motors and systems for AC EMU operated by Indian Railways.
- 500 kW AC traction motors for Diesel Electric Engines of Railways.
- 3600 kW generators for Diesel Electric Engines of Railways.
Brushless exciter machines and systems
- 90 kW Brushless Excitation System for synchronous motors and industrial generators.
- 250 kW Brushless Excitation Systems for Hydrogenerators up to 25 MW.
- 500 kW Brushless Excitation Systems for Hydrogenerators up to 60 MW.
Power systems and controls
- Protection of synchronous motors against out of step operation.
- Fault clearance on large turbogenerators of capacity 500 & 660 MW.
- Frequency response characteristics of turbogenerators of capacity 500 & 660 MW.
- Faults leading to asynchronous operation of 500 MW and 250 MW turbogenerators.
- Operation of gas turbine driven industrial turbogenerators as motors for starting duty of the gas turbines of capacity up to 60 MW.
Consultancy projects
- Development of Superconducting Generators – sponsored by DST. (Value approximately Rs.11 crore)
- Consultancy on “Regenerative loading system for superconducting motor”, sponsored by BHEL R&D Hyderabad. (completed in May 2014).
- Other classified projects.
Awards
- Recipient of Commonwealth Scholarship award for carrying out research in New Zealand.
- Twice recipient of G.T.Murray award of IPENZ Auckland New Zealand for research in micro hydro systems.
