When he was ten years old, Davudi went to Tabriz where he lived for the next eight years. When he finished high school in Tabriz, Davudi travelled to Tehran where he entered a teacher training college and studied education, literature and philosophy; he graduated after three years. He then travelled to various Iranian towns and taught Persian literature. While he was in Zanjan he married Malikih Afagh Iranpoor at the age of 31; they had two sons and three daughters.
This thesis presents a method of detecting electrical islands in low voltage distributed generator networks by measuring negative sequence impedance differences between islanded and utility connections. Extensive testing was conducted on Extensive testing was conducted on a commercial building and 25 kV distributed generator fed network by measuring naturally occurring and artificially injected negative sequence components.
The practical measurements have been matched to simulations where further system performance characteristics of detecting power system islands has been successfully demonstrated.
Measured results indicate that unbalanced load conditions are naturally occurring and readily measurable while deliberately unbalanced loads can increase the accuracy of negative sequence impedance islanding detection.
The typically low negative sequence impedance of induction motors was found to have only a small effect in low voltage busses, though large machines can effect the threshold settings. Careful placement of the island detector is required in these situations.
The negative sequence impedance measurement method is an improvement on previous impedance measurement techniques for islanding detection due to its accuracy, and distinctly large threshold window which have challenged previous impedance based islanding detection techniques.This "Cited by" count includes citations to the following articles in Scholar.
The ones marked * may be different from the article in the profile. v Abstract DISTRIBUTED COOPERATIVE CONTROL OF MICROGRIDS Ali Bidram, PhD The University of Texas at Arlington, Supervising Professors: Ali Davoudi and .
Distributed Cooperative Secondary Control of Microgrids Using Feedback Linearization Ali Bidram, Graduate Student Member, IEEE, Ali Davoudi,, Frank L.
Lewis, Fellow. The professional website of the computer scientist Taylor Johnson, which includes research information, contact information, and professional errata. MSc Thesis Students.
Undergraduate Students. Past Group Members and Alumni started summer , graduated summer ; first position: postdoc with Ali Davoudi; Other Past .
new possibilities to improve the energy harvest. This thesis proposes methods and circuits that leverage this physical integration to further enhance PV module integrated power converters.
A steady-state, SPICE-like, modified nodal analysis based (MNA) simulation tool is developed to study the effects of PV module mismatch and shading on PV systems. This thesis presents a method of detecting electrical islands in low voltage distributed generator networks by measuring negative sequence impedance differences between islanded and utility connections.