Banca de QUALIFICAÇÃO: ALAN RODRIGUES DE SOUSA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : ALAN RODRIGUES DE SOUSA
DATE: 28/01/2025
TIME: 14:00
LOCAL: Remoto
TITLE:

Identification of the Health Status of Electrochemical Batteries using Randle Circuit and Fractional Elements.

KEY WORDS:

Electrochemical batteries, state of charge, state of health, Randle circuit, fractional elements, signal injection.

PAGES: 120
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
SPECIALTY: Automação Eletrônica de Processos Elétricos e Industriais
SUMMARY:

Dynamic models of electrochemical batteries are usually obtained through impedance spectroscopy and Randle circuit. This method offers considerable advantages, as it is non-invasive and accurately identifies the battery’s state of health (SoH). However, its applicability is restricted to laboratory environments, using sophisticated equipment under specific operating conditions. The current demand for effective use of batteries requires the dynamic tracking of their SoH at the application site. In this sense, it is essential to develop parameter identification systems that allow the characterization of the impedance without interrupting the operation of the application, maintaining the precision required to ensure the reliability of the battery dynamic model. To this end, this work proposes a parameter identification system, in the form of a state observer that allows the identification of the battery dynamic model via Randle circuit, by means of signal injection and fractional elements. This approach allows the proposal of battery charge/discharge control systems, respecting its optimal state of charge (SoC), maximizing the battery useful life. Furthermore, this system allows tracking of battery degradation and anticipation of possible failure conditions due to degradation.

COMMITTEE MEMBERS:
Presidente - 1196444 - RICARDO LUCIO DE ARAUJO RIBEIRO
Interno - 1328152 - CARLOS EDUARDO TRABUCO DOREA
Externo à Instituição - ALEXANDRE CUNHA OLIVEIRA
Externo à Instituição - ANTONIO MARCUS NOGUEIRA LIMA - UFCG