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Subrat SaurabhAuthor of Kuch Woh Pal
In most appliances and devices, 3-phase (Φ) inverters are commonly used for the conversion of a Direct Current (DC) Voltage into Alternating Current (AC) voltage. For the purpose of conversion, a switching circuit is employed which grossly consists of two elements, namely the switch and the voltage modulation method. In this book, a 6-IGBT bridge circuit along with a Pulse Width Modulation (PWM) generator has been used. The average thermal loss of the inverter, constituting the thermal and conduction losses of the switches, is coupled with the respective loads using neural network simulation to give a building relation. Based on that, the heat sink is designed for effective heat dissipation. The thermal design is optimized on the basis of a parametric model, depending on a number of factors such as its size and shape, placement of switches, and structure of its fins, to keep a balance between the maximum temperature and the load applied. Overall, this Conjugate Heat Transfer (CHT) analysis involves three sections: Circuit Design, Neural Network Simulation, and Parametric Modelling of the Heat Sink.
Sitangshu Sekhar Biswas, Dr. C.S. Boopathi, Dr. R.Sridhar
S.S.Biswas obtained his Bachelor of Engineering degree in Electronics and Telecommunication Engineering from Indian Institute of Engineering Science and Technology (formerly Bengal Engineering College), PG Diploma in Medical Radiography and Imaging Technology, MBA in System and M.Tech in Power Electronics and Drives, presently he is pursuing his PhD. He joined a reputed multinational software company just after completion of degree, later quit from there and now he is a nuclear scientist. He is qualified in Level-II Ultrasonic NDT technique (As per the guide line prescribed in SNT-TC-1A of American Society of Nondestructive testing), trained in “Design for Additive Manufacturing” and Life member of Institute of Engineers (India), Instrument Society Of India & International Association of Engineers. During his industrial carrier, few of the important activities are design of large electrical machine and power converters, analysis in Finite Element Modelling, CFD etc. His main area of interest is Induction motor control.
