Yevgen Barsukov, PhD, Head, Algorithm Development, Battery Power Systems, Texas Instruments, Inc.
Wide range of consumer and industrial applications have moved from relatively steady load to highly dynamic loads both in terms of current range and intermittent occurrence. Simple filtering can handle high-frequency noise, but handling persistent and repeatable high loads over the duration of several seconds requires a completely different approach. Update of battery model parameters has to consider load variability. Battery model itself has to account for wide frequency range dynamics. Additionally, as repeatable load patterns are now a norm rather than the exception, it makes sense to use them in definition the end of discharge, discharge duration, state of power, and state of health. This presentation covers the key differentiating factors of gauging and power optimization for applications with dynamic loads.