Hesam Yazdanpanahi

PhD Student, Research Assistant,
Department of Electrical and Computer Engineering
University of Alberta
Edmonton, Alberta, Canada
T6G 2V4
Tel: (780) 492-0163
Email: yazdanpa[AT]ualberta.ca


I received my B.Sc. and M.Sc. degrees in Electrical Engineering from Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran in 2007 and 2009, respectively. I am currently pursuing my Ph.D. program in Electrical and Computer Engineering at University of Alberta, Canada. My research interests are Distributed Generation (DG) and its impacts on utility.

Current Research

My research project is concentrated on developing A Novel Strategy to Mitigate the Impact of DG on Power System Protection Coordination. Regardless of its several advantages, DG has some serious impacts on distribution system parts particularly on Over-Current (OC) protection. Indeed, DGs contribution to fault current invalidates the basic protection design assumptions. Miscoordination between OC devices, nuisance tripping and realys reach reduction (desensitization) are consequences of adding DG to utility.

Several methods have been proposed to mitigate these DG impacts on protection system. Nonetheless, these methods increase protection system complexity, impose excessive costs to utility, and demand utility involvement. The main purpose of my research is to propose novel strategies to mitigate DG negative impacts on protection system so that the original protection system, without any modification, can operate properly after adding DG. The idea is to establish methods to restrict DGs fault current and consequently avoid its impacts on OC protection. These methods are novel control strategies for different DG types during fault. In some cases relatively simple devices are required to be added to DG. However, this does not cause manipulation in DGs structure. Since these methods will be implemented at DG side, they do not require utility involvement. In comparison to above-mentioned methods, these solutions are intended to be simpler and less costly.