Biography

Chee-Mun Ong was born in Ipoh, Malaysia. He received the B.E.(Hons.) degree with First Class Honors from the University of Malaya, Malaysia, in 1967; and the M.S. and Ph.D. degrees in 1968 and 1974, respectively, from Purdue University .

He was a Fulbright Scholar from 1967 to 1968. From 1968 to 1973 and 1976 to 1978, he was a faculty member in the Department of Engineering of University of Malaya. In 1969/70 he spent his UNESCO Fellowship at the Central Electricity Generating Board and English Electric in United Kingdom. He was on the faculty of the School of Electrical and Computer Engineering at Purdue University, West Lafayette, Indiana from 1978. He retired in 2017 and is currently Professor Emeritus.

Research

Fields of interests are in modeling, simulation, and control of electrical machines and power system, primarily on the following topics:

a. Modeling, Simulation and Control of Electric Machines

On properties and choice of transformations for analysis of space harmonics in induction machines; computation of asynchronous harmonic and synchronous torque components. On techniques of improving the accuracy of the calculated torque from field-based calculations where field gradient is high and localized saturation is intense. And on methods of dynamic simulation of drive systems: the handling of nonlinear and numerically stiff, differential-algebraic system equations with nonlinearities and discontinuities caused by switchings.

b. Computational Methods for Multiterminal HVDC Systems

On dynamic simulation and control of multi-terminal high voltage dc transmission systems: developing efficient methods for computing the loadflow, transient stability, and optimal power flow of large-scale ac/dc power systems. On control techniques, such as power modulation, dynamic line flow control, and ac bus voltage control.

c. Automatic Generation Control

On decomposing the one-minute average of ACE into the components attributable to load variations within subregions of the control area. On adaptive modeling of both instantaneous and one-minute average of ACE. And on anticipatory control strategies to improve the Control Performance Standard 1 and 2 performance of a control area supplying a large amount of arc furnace loads.

Teaching

I find that I learn best when I am actively involved. As instructors, I like to explore along with students, guiding them through fundamentals and helping them relate theory to applications.

Teaching Awards

· D. D. Ewing Best Teacher Award, Purdue University, 1998

· Eta Kappa Nu W. H. Hayt Outstanding Teaching Award, Purdue University, 1992

Book

Dynamic Simulations of Electric Machinery: Using MATLAB/SIMULINK

Prentice-Hall PTR 1998, ISBN 0-13-723785-5

Chee-Mun Ong

This is a graduate-level text covers modeling, implementation and verification techniques for simulating electric machine systems. It explains how to build models and simulations, account for the assumptions and operating characteristics of the systems being modeled, and successfully interpret the results. The projects in each chapter can be explored using software from the link given below. Over 30 MATLAB\SIMULINK project files are available for hands-on experimentation on topics such as inrush current and subsynchronous resonance phenomena, power system stabilizer design, dynamic operation of a dc machine hoist, field-oriented control of induction motor, and design of a self-controlled permanent magnet motor drive.

Features

For working engineers and graduate students interested in improving the design of power components and systems using PC-based modeling and simulation tools. Offers a comprehensive exploration, ranging from background theory and models to implementation and verification techniques for simulations; to linear analysis of frequently studied machine systems, including...

Three- and single-phase transformers, modeling of core saturation.
Three- and single-phase induction machines.
Three- and six-phase synchronous machines, wound and permanent magnet field.
DC machines: four-quadrant drive operation, starting, speed and torque control.
Induction machine drives: volts/hertz control and field-oriented control.
Synchronous machines in power system studies: multi-machine system, shaft torsionals, excitation control.
Synchronous machine drives: self-control and permanent magnet field.

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