Dissertation Announcement for Moinul Shahidul Haque — 05/03/2021 at 10:00 AM
April 7, 2021
Dear Faculty, Graduate and Undergraduate Students,
You are cordially invited to my Ph.D. dissertation defense.
Dissertation Title: Degradation modeling and degradation-aware control of power electronic system
Date and time: Monday, May 03, 2021, 10:00 AM
Venue: Simrall-228 (Conference Room)
Candidate: Moinul Shahidul Haque
Degree: Doctor of Philosophy, Electrical and Computer Engineering
Committee:
Dr. Seungdeog Choi
Associate Professor of Electrical and Computer Engineering
(Major Professor)
Dr. Masoud Karimi-Ghartemani
Associate Professor of Electrical and Computer Engineering
(Committee Member)
Dr. Yong Fu
Professor of Electrical and Computer Engineering
(Committee Member)
Dr. Chanyeop Park
Assistant Professor of Electrical and Computer Engineering
(Committee Member)
Abstract:
The vulnerability of power semiconductor switches compromises the reliability and robustness of the power electronic system (PES). Thus, switch-health monitoring and prognosis ensure robustness and increase PES reliability by avoiding an unexpected shutdown and preventing catastrophic failures. A thorough prognosis study comprising switch degradation modeling, remaining useful life (RUL) estimation, and degradation-aware controller development is critical with these objectives. In this dissertation, three studies are conducted to achieve these objectives- 1) Insulated Gate Bipolar Transistor (IGBT) degradation modeling and RUL estimation, 2) cascode Gallium Nitride (GaN) Field-Effect Transistor (FET) degradation modeling and RUL estimation, and 3) Degradation-aware controller design for the solid-state transformer (SST). The first two studies have addressed the significant variation in RUL estimation and proposed degradation identification methods for IGBT and cascode GaN FET. In the third study, a system-level integration of the switch degradation model is implemented in the SST. The proposed low-complexity degradation-aware and adaptive SST controller ensures optimal degradation-aware power transfer and robust operation over the lifetime.
Thank you,
Moinul Shahidul Haque