Numerical approach to loss minimization in an induction motor

This paper describes a numerical approach to power-loss minimization in a fractional hp induction motor driven by a voltage-source inverter. The motor parameters are obtained from a genetic algorithm search. Optimum voltage and frequency excitations are arranged as a table for an energy-saving controller. The proposed method is useful under variable-torque load conditions. Simulation and experimental results are presented

Al Microheater and Ni Temperature Sensor Set based-on Photolithography with Closed-Loop Control

This article proposes the development of a new low-cost microheater and temperature sensor set. It was developed based on Micro-Electro-Mechanical Systems (MEMS) which based on photolithography technique and lift-off technique. Thin film of aluminum was utilized as microheater and encompassed nickel temperature sensor inside in order to decrease response time of the desired temperature. To control the various temperatures correctly, closed-loop feedback control based on PI-controller was adapted into control circuit system. Microcontroller was implemented to control and observe the responses of temperature between 40°C and 120°C. Simulation and experimental results are also presented

Loss minimization in an induction motor based on true parametric model

ผลงานวิชาการคณาจารย์มหาวิทยาลัยเทคโนโลยีสุรนาร

Control engineering curricula - a case on thailand

ผลงานวิชาการคณาจารย์มหาวิทยาลัยเทคโนโลยีสุรนารีIn December 1994, the Brazilian government regulated three new engineering undergraduate degrees. One such degree was in control and automation engineering. The paper discusses how, in Brazil, control engineering moved from a relatively small group of courses within electrical engineering curricula to an undergraduate degree in its own right. It presents a short review of undergraduate control education in countries around the world. The authors also present an overview of the control engineering profession, real-life applications, and state-of-the-art in Brazilian industries. Finally, the paper describes the major issues taken into account during the conception of this new engineering degree at the Federal University of Minas Gerais, Belo Horizonte, Brazil. In 1998 and 1999 academic years, 40 students were admitted each year for this degree. In view of the high demand of the Control and Automation Engineering degree by the prospective engineering students, since February 2000, the number of places has been increased to 80 students per yea