Download Dr. Edward J William ComEd PhD, PE Electrical Engineer Protection and Controls

ECE – 590 I
POWER & ENERGY SYSTEMS SEMINAR
Monday, April 25, 2016, 4:00 – 5:00 p.m., Room 2017, ECEB
State of Charge Indicator (SOCI) Design for the Lithium Carbon
Monofluoride (Li-CFx) Battery
Dr. Edward J William Jr
Commonwealth Edison (ComEd)
Abstract
The lithium polycarbon monoflouride (Li/CFx) battery has dynamic environmental conditions, such as the ambient
temperature history. The current SOCI technology has a problem with flat discharge curves where state of charge (SOC) is
a function of voltage (V). The intended usage of the SOCI is for monitoring military cells, with extension to any battery with
flat discharge profile.
This paper provides a solution for monitoring this Li/CFx discharge behavior. This nonlinear solution is achieved in the form
of an Artificial Neural Network (ANN) algorithm. This paper will take an indepth look into the ANN algorithm and how it will
be trained. Moreover, the trained ANNbased algorithm will be programmed into a MSP430 microcontroller and will improve
nonlinear discharge SOCI accuracy. This solution is estimated to be successful in giving us an approximate SOC within 2–
3% margin of error.
Moreover, this paper provides a scientific contribution in the form of a correction to internal resistance equation, Li/CFx
battery mathematical model, SOCI prototype, and cost analysis. The SOCI is composed of circuit, ANN algorithm, MSP430
microcontroller, and a five lightemitting diode (LED) output display. Its output display will function as a SOCI that shows five
initiated LEDs that demonstrate a 100% fully charged Li/CFx battery. The SOCI will adjust the engaged LED display
proportionally as battery discharges, and finally all LEDs will be disengaged to demonstrate the battery is discharged at 0%.
Biography
Dr. Edward J William Jr, Ph.D. P.E. is a Doctoral and M.S. graduate of Electrical Engineering from the University of Idaho.
In addition, he holds a B.S. graduate of Electrical Engineering at Arizona State University and is a registered Professional
Engineer (P.E.). Edward is currently employed by Commonwealth Edison (ComEd) and serves as a Power Systems
Protection and Controls (P&C) Engineer. He has offered his P&C Engineering skillsets to Primera Engineers Ltd. an
Engineering Consulting firm based in Chicago IL, IPSEnergy based in Munich Germany, and SPX Transformer (Formerly
Waukesha Electric Systems) since graduation and has over 5 years of technical engineering experience with The Boeing
Company and Honeywell International. His work experience includes design and operation of transformers, power system
protection, and substation asset management. He has a special interest in substation protection and control applications.
finally, Edward has publications for scientific contributions in IEEE and Cigre Canada.
Edward is the business owner of Solved Engineering LLC, is one of few African American owned Power System Engineering
Firm in Chicago. Edward has held National Leadership positions in IEEE Power and Energy Society Standards committees,
Eta Kappa Nu (President), and the National Society of Black Engineers (NSBE) (National Executive Officer and Chapter
President). Edward is also involved in the IEEE Power and Energy Society, Cook County Forest Preserve Foundation,
Chicago’s Young and Powerful, Alpha Phi Alpha Fraternity Incorporated, Rotary International (Rotary One), and is a fellow
traveler (Oriental 33).