WAVEFORM GENERATION IN POWER ELECTRONIC CONVERTER
USING OBJECT ORIENTED PROGRAMMING IN MATLAB
ABSTRACT
The paper presents the programming methodology for generating voltage and current waveforms in power electronic converters using MATLAB. Although, these waveforms can also be obtained by using MULTISIM or PLEXIM simulation tools, but using MATLAB increases understanding of the circuit operation better. In this method, the power electronic converter circuit is first resolved into circuit modes (states) based on the specifications and switching strategy employed. The inductor currents and capacitor voltages are used as objects with properties and methods in each circuit state. The terminal values of each circuit state are matched with beginning values of the objects in the next circuit state. Details of classes, methods and functions will be presented in the full paper. The paper presents examples of Buck, Boost, BuckBoost, Full-Bridge PWM converter and other converter topologies. This methodology is general enough to generate waveforms in several DC-DC converters and inverters.
Jai P. Agrawal is a professor in electrical and computer engineering technology at Purdue University Northwest. He received his Ph.D. in electrical engineering from University of Illinois, Chicago, in 1991, dissertation in power electronics. He also received M.S. and B.S. degrees in electrical engineering from Indian Institute of Technology, Kanpur, India, in 1970 and 1968, respectively. His expertise includes analog and digital electronics design, power electronics, nanophotonics, and optical/wireless networking systems. He has
designed several models of high frequency oscilloscopes and other electronic test and measuring instruments as an entrepreneur. He has delivered invited short courses in Penang, Malaysia and Singapore. He is also the author of a textbook in power electronics, published by Prentice-Hall, Inc. His professional career is equally divided in academia and industry. He has authored several research papers in IEEE journals and conferences. His current research is focused on renewable energy technology, smart energy grid Phasor analytical tools in ac circuit analysis.
Omer Farook is a member of the faculty of Electrical and Computer Engineering Technology at Purdue University, Nothwest. Farook received the diploma of licentiate in mechanical engineering and B.S.M.E. in 1970 and 1972, respectively. He further received B.S.E.E. and M.S.E.E. in 1978 and 1983, respectively, from Illinois Institute of Technology. Farook’s current interests are in the areas of embedded system design, hardware-software interfacing, digital communication, networking, image processing, and biometrics, C++, Python, PHP and Java languages. He has a keen interest in pedagogy and instruction delivery methods related to distance learning. He has a deep commitment to social justice and in achieving economic and educational equity.
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