Power Electronics Power Systems Group PEPS Department

Power Electronics & Power Systems Group (PEPS) Department of Electrical Engineering Indian Institute of Technology - Bombay Power Electronics + Power Systems IIT Bombay

Academia Industry Meet 2003, Electrical Engineering Department of Electrical Engineering 1 B. Tech Program 5 M. Tech Programs Power Electronics and Power Systems (PE+PS) Microelectronics Communication & Signal Processing Electronic Systems Control & Computing Participate in Inter-disciplinary M. Tech Programs in Reliability Engineering & Energy Systems

Academia Industry Meet 2003, Electrical Engineering Department Faculty: PE + PS · · · · M. S. Agarwal: Switchgear, High voltage systems V. Agarwal: HF power supplies, EMI issues, power factor correction A. N. Chandorkar: Power semiconductor devices M. Chandorkar: Electrical power quality, High power drives K. Chatterjee: Active filters, Drives B. G. Fernandes: Electrical machine control, Power converters S. A. Khaparde: Non-conventional energy sources, Deregulation A. M. Kulkarni: Power system stability, FACTS, HVDC S. V. Kulkarni: Power transformers, finite element computations M. B. Patil: Power electronic circuit simulations (SEQUEL) S. A. Soman: Power system protection, Power system computation V. P. Sundersingh: Power factor correction H. Narayanan: Parallel circuit simulation, combinatorial modelling P. Apte: MEMS, Condition Monitoring

Academia Industry Meet 2003, Electrical Engineering Department Activities M. Tech in PE+PS · 17 courses at the postgraduate level (class and laboratory). · 10 courses at the undergraduate level (class and laboratory). Ph. D Distribution System Planning ( 1 ongoing) Distributed Generation (1 ongoing) FACTS & Power System Dynamics ( 2 ongoing) Object Oriented Power System Analysis ( 1 completed) Coupled Field Formulations(1 ongoing) Risk evaluation in Deregulated power markets(1 ongoing) Industrial Consultancy & Sponsored R&D Projects Short Term Continuation-Education-Program Courses

Academia Industry Meet 2003, Electrical Engineering Department RECENT SHORT TERM COURSES CONDUCTED • Electromagnetic and Electrostatic Analysis using MAXWELL software packages • • • Power System Stabilizers • • Deregulation in Power Systems Power System Dynamics and Protection Digital Signal Processor Hardware Circuit Design FACTS and HVDC systems System interaction and design aspects of Power Transformers Variable Speed AC drives

Academia Industry Meet 2003, Electrical Engineering Department Power Academia Meet 2003 Organised on 3 rd and 4 th April 2003 IIT Bombay and Prayas Pune Held at IIT Bombay Participants : 32 New initiative for Networked Virtual University …. National workshop was recently held for identifying training and research needs in the power sector in India jointly by Electrical Engineering and Energy System Engineering The following action plan is to be evolved and implemented: - Initiative includes planned course offerings and information sharing - Pooling of resources and faculty, pilot distance education module - Consortium/national network/virtual university

Academia Industry Meet 2003, Electrical Engineering Department Recent Consultancy Projects Analysis and Optimization of Insulation Design in Power Transformers • • Analysis of creepage distance Optimization of existing lead clearances Optimization of end insulation Review of withstand characteristics of oil - pressboard system Induced Voltage Calculation on Parallel Transmission Lines Estimation of induced voltage in 220 k. V line due to current flowing in nearby 400 k. V line Calculations under rated current and fault conditions Procedure involves • Calculation of self and mutual impedances using Carson’s equations • Computation of sequence impedance matrix from phase impedance matrix • Calculation on sequence voltages • Calculation of induced voltages

Academia Industry Meet 2003, Electrical Engineering Department Consultancy Projects PSS Tuning in Western Grid (WREB) -- ongoing * Study of unstable swing modes * Identification of critical machines * PSS design on those machines * Simulation of entire Western system * Field tests to be done to verify design Kanpur - Ballabhgarh 400 k. V Thyristor Controlled Series Compensation project (BHEL) -- ongoing * Control Strategy and controller structure * Damping Controller Design /Identification of suitable feedback signal * Simulation of entire Northern system * Lower Level Controller design with detailed simulation of power electronics Substation Automation System for TISCO - Software Development - Relay co-ordination - Islanding scheme design

Academia Industry Meet 2003, Electrical Engineering Department Ongoing Sponsored R&D Projects in Power Systems • Optimal Power Supply bidding by reinforcement learning in Deregulated power market • Flexible AC Transmission System Devices in a transmission network - Development of Analytical Tools • Relay Coordination Software Development • Distribution System Automation

Academia Industry Meet 2003, Electrical Engineering Department Capabilities & Current Areas of Interest Deregulation in Power Systems Congestion Management Optimal Bidding Power System Dynamical Studies Power System Stabilizer Tuning Islanding and Power System Restoration Trajectory Sensitivity Analysis FACTS & HVDC Modeling in Load Flow Analysis Modeling in Transient Stability Analysis Controller Design, optimal placement etc Power System Relaying Numerical Relaying Relay Coordination with over-current and distance Relays Out-of-Step Relaying WAM and advances in Protection

Academia Industry Meet 2003, Electrical Engineering Department Capabilities Continued. . Power System Software Development Load Flow Analysis (C++) Short Circuit Analysis (C++) Relay Coordination for both over-current and distance relaying with meshed systems (C++) Over-current Relay Digitizer ( MFC) Transient Stability Analysis (Matlab & Simulink) Power System Visualization Graphical User Interface Development Web based tools design Seamless Integration of the analysis tools Distributed Generation Power Electronic Interface for non-conventional Energy Sources Active & Reactive Power Management, load flow etc Power Transformers Stray Loss Evaluation using FEM technique Design of Power Transformers

Academia Industry Meet 2003, Electrical Engineering Department Capabilities Continued. . Power System Reliability Condition Monitoring using Micro Electro Mechanical Systems (MEMS) Array of sensors e. g. temperature, pressure, velocity, strain etc (increase reliability) compact ( in mm) Self checking & self calibration (important under demanding conditions) Increase reliability

Academia Industry Meet 2003, Electrical Engineering Department Possible Areas of Interaction with Industry System Planning Distributed Generation Focus on Grid Connection using power electronics & Planning Studies Operation under restructured market Impact on Distribution System Operation Power System Analysis Software Object Oriented Programming Evolutionary Relaying, WAM, Numerical relaying Distribution System Planning Condition Monitoring using MEMS Continuous monitoring and prediction of failure Tiny pressure, temperature, flow sensors. Array of Sensors ( r out of n), linear response. Self Monitoring and Calibration which is a difficult in demanding environments like

Academia Industry Meet 2003, Electrical Engineering Department Condition Monitoring ‘onset of failure’

Academia Industry Meet 2003, Electrical Engineering Department Potential-Failure Interval

Academia Industry Meet 2003, Electrical Engineering Department Periodic -versus- Continuous condition monitoring

Academia Industry Meet 2003, Electrical Engineering Department Mode of Interaction Consultancy & sponsored R&D projects for industry needs e. g. , software, simulation studies etc Indigenous Strong Academic Support Cost Effective Short Term Training Courses (In-house, at IIT and by distance learning) Deregulation, Distributed Generation, WAM, relay coordination, distribution system planning and operation etc MS by research program for Industry Engineers in these thrust area ( at IITB and by Distance Learning) Limited Course Work, Intensive Project Work in frontier areas Win-Win Situation for All Fellowships for M. Tech in PE+PS followed by optional recruitment of M. Tech Students

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