TOCS Event-Silicon Valley Campus - Carnegie Mellon University

TOCS Event

Abe Ishihara


Abe Ishihara

Research Scientist, Carnegie Mellon University Silicon Valley


February 26, 1:30 pm



CMUSV, Rm 118 [directions]

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Degradation of Solar Arrays and its Resolution


To further PV market penetration, costs must be reduced and efficiency increased over the life-time of the system.  The ability to detect failure modes in PV modules is a critical piece of this equation.  Underperformance often plagues installations especially when systems operate in off-nominal environmental conditions.  A series-connected module is the weakest link in the chain and the ability to rapidly pinpoint a defective one has the potential to ultimately reduce the LCOE (Levelized Cost of Energy). 

This talk will discuss degradation modes that impact solar array performance such as partial shading, dust, physical damage, delamination, hot-spots, etc.  We will discuss physics- based modeling and simulation aspects that are used to build algorithms that detect anomalies.

Speaker Bio:

Abraham K. Ishihara received his B.S. degree in Electrical Engineering from the Rensselaer Polytechnic Institute and an M.S. and PhD in Aeronautics and Astronautics from Stanford University.  He is a research faculty at Carnegie Mellon University Silicon Valley. His research interests include modeling, analysis, and intelligent control of photovoltaic systems; adaptive and optimal control and control of flexible structures.