An evaluation of high energy density battery technologies for substation standby applications
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Date
2019
Authors
Stamatis, Konstantinos
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Abstract
The purpose of this thesis is to evaluate alternative battery chemistries for their usage as a substation battery bank. Lithium-ion and the previously untested (as a station back up) sodium-nickel-chloride batteries were chosen. Experimental setup for lithium-ion battery was built and tests were performed showing battery changes over the course of eighteen months. In addition to calendar aging an accelerated aging test using high temperatures was developed and tested. An experimental setup for sodium-nickel-chloride batteries was also designed with the batteries tested in substation conditions. Furthermore, capacity results from eighteen months of tests are discussed. The thesis is concluded by offering sizing procedures for sodium-nickel-chloride batteries and by developing asset health indexes and a maintenance framework based on reliability centered maintenance.
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Keywords
battery