A5062347924- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Electric and Hybrid Vehicle Technologies
- Electric Vehicles and Infrastructure
- Microgrid Control and Optimization
- Advancements in Battery Materials
- Advanced Control Systems Design
- Sensorless Control of Electric Motors
- Teaching and Learning Programming
- Control Systems and Identification
- Hydraulic and Pneumatic Systems
- Experimental Learning in Engineering
- Advanced Combustion Engine Technologies
- Iterative Learning Control Systems
- Biomedical and Engineering Education
- Real-time simulation and control systems
Clemson University
2012-2020
University of Detroit Mercy
2017-2018
Supercapacitors benefit from unique features including high power density, long cycle life, wide temperature operation range, durability in harsh environments, efficient cycling, and low maintenance cost. This paper presents a validated lumped computationally electrical thermal model for cylindrical supercapacitor cell. The is two-state equivalent electric circuit with three parameters that are identified using temporal experiments. dependence of the on state charge, current direction...
Electrical energy storage systems are extensively utilized in applications, including electrified vehicles, renewable power generation, and electronic devices. While discharging events a function of the demand, charging procedure is often controllable. This paper evaluates different strategies for stand-alone supercapacitors (SCs), lithium-ion (Li-ion), lead-acid batteries. Constant optimal formulated corresponding currents obtained. Efficiency analysis times (slow fast) performed. The...
Optimal charging of stand-alone lead-acid and lithium-ion batteries is studied in this paper. The objective to maximize the efficiency. In case two scenarios are studied. First only electronic resistance considered next step effect polarization also included. By considering constant model parameters for battery analytical solutions exists both using Pontryagins minimum principle. chemistry variation total internal with state charge (SOC) considerable optimal problem results a set nonlinear...
Finding the optimal charging profile of an ultra-capacitor energy storage system during a regenerative braking event is focus this paper. After showing that resistive losses can be high power regeneration event, we formulate problem in control framework with objective maximizing recuperated into ultracapacitor bank while satisfying demands. We employ Pontryagin's maximum principle to understand necessary conditions solution should satisfy and use numerical techniques find such solution(s)....
The capability of ultracapacitors in delivering high power at low temperature applications such as cold starting is the motivation this paper. A two state equivalent electric circuit model coupled with a thermal defined and parameterized to develop four control oriented electro-thermal for cylindrical double layer ultracapacitors. proposed mimics terminal voltage dynamics could be used evaluate efficiency cell. parameters are estimated by pulse-relaxation tests sub-zero temperatures −40 °C....
In this paper, a lumped fractional order model (FOM) is developed for lithiumion battery (LIB). Electrochemical impedance spectroscopy (EIS) used to obtain the cell at different temperatures and SOCs, wide range of frequencies. This data parameterization which complex nonlinear least squares problem. A modified Levenberg-Marquardt algorithm adopted solve Two statistical measures, including sum residual coefficient determination are employed incrementally build up on integer (IOM) final FOM....
Automated assessment tools offer benefits to instructors by freeing them from the burden of grading, while improving student self-learning providing immediate feedback without need for intervention an instructor. The power such has become all more important as new technologies enabling scaling knowledge dissemination have arisen, with Massive Open Online Courses (MOOCs). In this work, authors provide guidelines employing software-checking programs automated grading assignments in System...