Integrating reliability into performance-oriented design of fault-tolerant switch-mode DC-DC converters for photovoltaic energy-conversion applications
Dhople, Sairaj V.
Loading…
Permalink
https://hdl.handle.net/2142/14718
Description
Title
Integrating reliability into performance-oriented design of fault-tolerant switch-mode DC-DC converters for photovoltaic energy-conversion applications
Author(s)
Dhople, Sairaj V.
Issue Date
2010-01-06T16:41:49Z
Director of Research (if dissertation) or Advisor (if thesis)
Chapman, Patrick L.
Doctoral Committee Chair(s)
Chapman, Patrick L.
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Photovoltaics
Maximum power point tracking
Reliability
Switch-mode power converter
Abstract
This work bridges the disconnect between two consequential design concerns in switch-mode power converters deployed in photovoltaic energy-processing applications: steady-state performance and system reliability. A general framework for fault-tolerant design is presented in the context of a multiphase, interleaved boost converter. A unified, system-level, steady-state description for this topology is proposed. The theoretical derivations are validated against detailed numerical simulations, and their applicability over a wide range of ambient conditions is demonstrated. The steady-state characterization of the converter is then employed to specify the failure rates of circuit components and establish the effects of ambient temperature, insolation, number of phases, and device ratings on system reliability. A Markov reliability model is derived to assess the reliability of a general N-phase converter. The proposed analytical tools provide a methodical framework for design of fault-tolerant, multiphase converters employed in a wide range of photovoltaic systems.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
