Analysis of a Modified Equivalent Circuit Model for Lithium-Ion Battery Modules in CubeSats
Abstract
Failure of the electrical power system (EPS) to meet mission requirements is a common problem in nano-size satellites commonly referred to as CubeSats. The motivation for this research stems from the desired prevention of EPS failure through a process of testing and space qualification of components. Utilizing models to predict the behavior of an EPS before it is designed, built, and tested for space can provide critical insight in areas of limitation in performance and survivability. Experimental test data is collected under a simulated space environment through the use of a Thermal Vacuum Chamber (TVAC). Data collected from battery testing in the space environment is used to validate a modified Thevenin Equivalent Circuit model. The experimental test data and battery model are compared and evaluated resulting in a promising model that can reasonably predict performance of a battery pack in a two-series two-parallel configuration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 24, 2016
- Accession Number
- AD1054172
Entities
People
- James J. Liu
Organizations
- Air Force Institute of Technology