System-Level Design for Reliability and Maintenance Scheduling in Modern Power Electronic-Based Power Systems

Journal article (2020)

Authors

S. Peyghami Aalborg University
P. Palensky Intelligent Electrical Power Grids - EEMCS
Mahmoud Fotuhi-Firuzabad Sharif University of Technology
Frede Blaabjerg Aalborg University
Research Group
Intelligent Electrical Power Grids (EEMCS) (TU Delft)
Copyright: © 2020 S. Peyghami, P. Palensky, Mahmoud Fotuhi-Firuzabad, Frede Blaabjerg
DOI: https://doi.org/10.1109/OAJPE.2020.3029229
Reliability Planning Design Power system Maintenance Power converter Wear-out failure
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Published Date

2020

Language

English

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

Intelligent Electrical Power Grids

Abstract

Power electronic converters will serve as the fundamental components of modern power systems. However, they may suffer from poorer reliability if not properly designed, consequently affecting the overall performance of power systems. Accordingly, the converter reliability should be taken into account in design and planning of Power Electronic-based Power Systems (PEPSs). Optimal decision-making in planning of PEPSs requires precise reliability modeling in converters from component up to system-level. This paper proposes model-based system-level design and maintenance strategies in PEPSs based on the reliability model of converters. This will yield a reliable and economic planning of PEPSs by proper sizing of converters, cost-effective design of converter components, identifying and strengthening the converter weakest links, as well as optimal maintenance scheduling of converters. Numerical case studies demonstrate the effectiveness of the proposed design and planning strategies for modern power systems.