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Distance relay zone 3 misoperation has been responsible for major blackouts around the world. Zone 3 misoperation generally occurs under system wide cascading events such as the 2003 Northeastern US–Canada blackout or under stressed system conditions such as the 2015 Turkish blackout. This paper explains the problem of zone 3 distance protection misoperation. The paper then proceeds to survey the...
In this paper, a method of modeling synchronous machines with damper windings based on the winding function approach (WFA) has been proposed. This method of machine analysis with the actual winding distribution does not require neglecting the harmonics of the winding distributions. The proposed model can be used to simulate the machine under faulty conditions such as broken damper bars and end ring,...
With funding from NSF, faculty from the Dwight Look College of Engineering at Texas A&M University have developed an outreach program aimed at providing secondary math and science teachers with research experiences with faculty researchers. The overall mission of the project is to excite, empower, and educate teachers about engineering so they in turn will excite, empower, and educate students...
Shipboard electric power systems (SPS) are dynamic, complex systems that require continuous monitoring and fast controls to operate in a reliable and secure state. To enhance survivability of naval ships and meet reduced manning requirements, automatic reconfiguration for service restoration may be performed to restore the de-energized loads. This paper presents an automatic rule-based expert system...
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