The Department of Electrical and Electronics Engg.(DEEE), established in 1930, is a well-recognized department in the field of Electrical Engg. The department offers 6 P.G.programmes namely Control & Instrumentation, High Voltage Engg., Embedded Systems Technology, Power Systems Engg., Power Electronics and Drives, Electrical Drives and Embedded Control. The department has produced 21 Ph.Ds in the last 5 years. The department mainly concentrates on curricular and research activities. Apart from the regular curricular and research activities, short term courses are also conducted for TNEB Engineers.

The Department received Rs.50.00 lakhs for developing the infrastructure facilities to promote research related to power electronics application to Electrical Drives and Control. Machine diagnostic, Laboratory facilities have been created under this fund. In addition to this, UGC has elevated this department to the status of Centre for Advanced Studies (CAS) on “Power Apparatus and Embedded systems” awarding Rs.75.00 Lakhs. To create world class infrastructure, UGC has further sanctioned an amount of Rs.50.00 lakhs in two installments.

Areas of Research Interest

Some specific topics of interest are mentioned as follows
• Power system analysis, operation & control
• Design of Power and power electronic circuits
• Electrical drives and control
• FACTS controllers and Power quality
• Special electrical machines- fabrication & Control
• Grid connected wind energy conversion systems
• Insulation coordination
• Application of pulsed electric field for food preservation
• Robust controllers design & implementation
• Embedded system design for specific applications

R&D contributions
The major contribution is in terms of producing quality man-power and valued research publications. In addition some specific achievements are listed as follows
• Development of application software packages for power flow studies
• Development of dispatcher training simulator
• Development of energy efficient controllers for submersible pumps
• Design of linear Induction motor for Turret drive
• Design of claw-pole alternator for automobile application
• Filed design of Electrical power apparatus

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Brief Write up of Most Successful Research Projects:

Development of energy efficient controllers

Electrical drives are used for various applications. Energy efficiency can be achieved in these drives when the appropriate operating point is chosen for a given load. In this project energy efficient controllers are designed for three phase induction motor fed agricultural pumps. The operating speed of the drive is chosen based on the depth of water in the bore-well. The algorithm is implemented using microcontroller and integrated power modules and field tested.

Areas of application : Wherever electrical drives are used assessment can be made on the operating point in terms of energy efficiency
Further funding required : To study the factors influencing the reliability of power Components and provide a better design

Design of satellite Power system

The complete power system fed by Ga-As solar cells and Li-Ion batteries is designed for ANUSAT. Necessary power converters are developed to supply the satellite sub-systems with tight voltage regulation. Specialty of the design is the complete validation through simulation and implementation using MIL qualified and time tested discrete components. The complete power subsystem has been developed in an ESD protected environment in the EEE department of Anna University. The subsystems have successfully passed the environmental test and have been reliably functioning for the past two years. Maximum power point tracking and zero voltage switching conversion have demonstrated additionally.

Areas of application : Any portable power system can be designed
Industries who will be interested : Any power electronics Industry who is interested Improving the reliability and functioning of their circuit.

Development of library functions using “SEQUEL” software for electrical machines.

The library functions are developed to view the electrical machines as stator and rotor circuits to be used for hardware in loop simulation. This work is part of the “Full Spectrum Simulator” development done by CDAC, Trivandrum and IIT Bombay. In FSS, hardware and software are developed which can be used for functional testing of wide spectrum of power modules. Department of EEE has developed library functions for four other components.

Areas of application : Functionality of controllers can be tested with the help of hardware simulators
Other points: Can contribute in the following areas
1. Characterization of power electronic circuits and drives
2. Analysis and design of power and power electronic circuits
3. Analysis and characterization of special electrical machines and controllers
4. Development of hardware and software simulators for specific applications

Estimation of Efficiency and performance of Three-Phase Induction Motors.
The three-phase induction motors consume almost 70-80% of electrical power in industries. Due to ageing or development of minor faults its performance inclusive of efficiency may reduce over a period of its employment in industries.

So it becomes imperative to assess its performance. The Software algorithm developed could estimate its efficiency and general health such that corrective action including rewinding or deployment of energy efficient motors may be considered.

A study on pulsed Electric field in Liquid Food Preservation
Pulsed Electric Field is an emerging non thermal preservation technique which relatives the nutrient of food processed with minimal time. Thus, this new technique can be effectively used for preserving milk (India ranking 2nd in Dairy Products) and extending the shelf life of milk. Further this technique can be extended for inactivating pathogenic microbes and thus fucoids application in targeted drug delivery and even in curing dangerous diseases. This new technology will open new arena in the field of Food preservation which is very much in need for Indian Scenario.