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Load Flow Analysis In Power Systems Courses: Comparing Student Learning For Engineering And Engineering Technology Students

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2006 Annual Conference & Exposition


Chicago, Illinois

Publication Date

June 18, 2006

Start Date

June 18, 2006

End Date

June 21, 2006



Conference Session

Energy Learning through Simulation and Analysis

Tagged Division

Energy Conversion and Conservation

Page Count


Page Numbers

11.900.1 - 11.900.11



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Paper Authors


Ilya Grinberg Buffalo State College

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Ilya Grinberg graduated from the L’viv Polytechnic Institute (L’viv, Ukraine) with an MS in EE and earned a Ph.D. degree from the Moscow Institute of Civil Engineering (Moscow, Russia). He has over 30 years of experience in design and consulting in the field of power distribution systems and design automation. Currently he is Professor of Engineering Technology at Buffalo State College. He is a Senior Member of IEEE, and a member of ASEE.

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Herbert L. Hess P.E. University of Idaho in Moscow

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Herb Hess received the PhD degree from the University of Wisconsin-Madison in 1993. He served on the faculty of the United States Military Academy from 1983-1988. In 1993, he joined the University of Idaho, where he is Associate Professor of Electrical Engineering. He received the Best Paper Overall Award for the 1999 ASEE Annual Conference. His interests are in device and circuit aspects of power electronic energy converters.

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Frank Pietryga University of Pittsburgh-Johnstown

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Frank W. Pietryga is an Assistant Professor at the University of Pittsburgh at Johnstown. He graduated from UPJ in 1983 with a BSEET degree and completed his MSEE degree in 1993 at the University of Pittsburgh, main campus. His interests include power system engineering, AC/DC machinery, power electronics, and motor drive systems. Mr. Pietryga is also a registered professional engineer in the Commonwealth of Pennsylvania

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Load flow analysis provides an essential vehicle for understanding the state of an electric power system. An ability to perform the load flow and to make appropriate engineering judgments based on its results is an important skill for the power system operator, technologist, and engineer. Both design and analysis facets of the problem are significant in gaining the use of load flow as a tool to design, operate, evaluate, assess and improve the system. In this paper, methods employed by faculty to teach this important topic are assessed at two universities, one of which provide engineering technology programs, and the other, engineering. Each offers its students required or elective sequences in electric power systems. The vehicle for this investigation, one of the fundamental and unifying topics of power systems analysis, is load-flow analysis.

In this paper, the authors describe the importance of load flow analysis as a unifying topic for an introductory course in public electric utility power systems and provide their methodologies for teaching this subject. Their use of various analytical and simulation tools is discussed. These include two primary approaches. First, they approach the subject from a basic programming perspective, using programming language or a mathematics package to write the code necessary to assess the performance of a small power system. Second, they approach the subject from a holistic perspective, using a high-level software package to design a small working power system and then designing and testing improvements to it.

Grinberg, I., & Hess, H. L., & Pietryga, F. (2006, June), Load Flow Analysis In Power Systems Courses: Comparing Student Learning For Engineering And Engineering Technology Students Paper presented at 2006 Annual Conference & Exposition, Chicago, Illinois. 10.18260/1-2--703

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