The Institute of Electrical and Electronics Engineers (IEEE) Region 6: Southwest Area (encompassing New Mexico, Arizona, California, and Nevada) has selected Dr. Jose Luis Cruz-Campa (in Sandia’s MEMS* Technologies Dept.) as the recipient of their 2014 Outstanding Engineer Award for his “critical technical and leadership contributions to the development of microsystems-enabled PV (MEPV) technology and […]
Solar energy is both predictable—the sun rises and sets everyday—and intermittent—a passing cloud can reduce a 1 MW photovoltaic (PV) array from 100% of its power generating capacity to 10% in a matter of seconds. This intermittency limits this renewable-energy (RE) source and how much of it is integrated into today’s electricity grid.
To alleviate this […]
March 6, 2013
14:00 — 15:00 Eastern
The Energy Storage Technology Advancement Partnership project of the Clean Energy States Alliance (CESA) and the Department of Energy is presenting a webinar featuring a case study conducted by Sandia National Laboratory on the Island of Maui and its goals of increasing its renewable energy capacity and the role of […]
A recently released Sandia National Laboratories report, “Suggested Guidelines for Assessment of DG Unintentional Islanding Risk,” outlines a procedure to help utility distribution engineers determine the risk of unintentional islanding in distributed energy generation installations. By providing a quick and reliable way to identify situations in which such risk is negligible, Sandia’s approach can help […]
Degradation Signature Characterization
The data from the characterization of parts before and after stress testing will be analyzed for useful fingerprints that indicate degradation and remaining lifetime. One approach is to apply the characterization results to simulations to look for corresponding changes in behavioral parameters of the inverters. Figure 1 describes one potential behavioral parameter, voltage […]
Thermal Management Subsystem
Thermal management of inverter systems and internal components is critical for ensuring lasting performance reliability. Research is currently being carried out to more accurately characterize inverter components and system topologies of varying scales. This work includes:
Thermal/fluid phenomena of internal inverter components, and their impact on electrical performance and reliability.
Finite Element Analysis (FEA)/Computational Fluid […]
As scientists and engineers improve the durability of photovoltaic (PV) modules, the inverter system, which converts the harvested energy into power usable by the grid, becomes the next emerging challenge in the reliability of the PV system. Addressing these issues represents a difficult task to both the PV and power systems communities for the following […]