DSP centered modular building blocks and object-oriented modeling for power electronic systems

Thumbnail Image
Date
2000
Authors
Rajagopalan, Satish
Major Professor
Advisor
Ajjarapu, Venkataramana
Sastry, Vedula V.
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Research Projects
Organizational Units
Journal Issue
Is Version Of
Versions
Series
Department
Abstract
Power electronics has been gaining widespread popularity because of the development that have taken place in areas like power semiconductor devices, micro-electronics, control and power apparatus in the last five decades. Power electronic systems are complex, besides the fact that a number of new circuit topologies have come into being. Coupled to this is a widespread use of non-linear loads that has given rise to new issues such as power quality and voltage stability. In this context, a flexible approach to the understanding of power electronic systems is needed that can be used both for design and education with a possibility for rapid learning and prototyping. A modular approach to real-time implementation of power electronic circuits using the Texas Instrument DSP controller TMS32OF240 is proposed in this thesis. Besides offering flexibility to a designer/researcher, this approach can also be used to impart a modern power electronics education. Real-time hardware and software constructs for a number of power electronic circuits have been developed that can be quickly integrated to have the desired power electronic topology. A number of topologies can be quickly tested by choosing the appropriate hardware and software modules. Moreover, as the power electronic converter can be controlled in real-time from a computer, the designer can quickly tune the circuit to one's specific needs. The concept has been proved to cut down turn around time and development cost of building such a power electronics laboratory. Also proposed in this thesis is an object-oriented simulation approach for modeling and designing power electronic systems using the simulator DYMOLA. This software approach also provides for a virtual state-of-the-art power electronics laboratory where a circuit of any complexity can be quickly modeled simulated and analyzed. As DYMOLA does not have an inbuilt measurement and analysis tool, two user-created tools have been developed. The first is a MATLAB based off-line tool but modeled with DYMOLA. This tool is developed by exploiting the ability of DYMOLA to interface with external simulators. An on-line measurement tool written in DYMOLA has also been developed. The object-oriented measurement tools in DYMOLA also make graphical modeling of power electronic systems with measurement templates a reality.
Comments
Description
Keywords
Citation
DOI
Source
Copyright