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.
Highlights
Electrifying the world is one of the pragmatic solutions for reducing carbon footprint [1]
Renewable energy generation, electric storage, smart and micro grid technologies, as well as digitalization are essential parts of sustainable electricity systems. These technologies are underpinned by power electronics as the core of their energy conversion process
This paper aims to introduce an Model Based System Engineering (MBSE) approach for system-level design for reliability and maintenance planning in Power Electronic-based Power Systems (PEPSs) employing lifetime model of converters in the three mentioned hierarchical levels
Summary
Electrifying the world is one of the pragmatic solutions for reducing carbon footprint [1]. Design and maintenance activities in conventional power systems are performed based on the historical data These data may not guarantee optimal maintenance due to development of converter technologies and dependency of its reliability to operating conditions. This paper aims to introduce an MBSE approach for system-level design for reliability and maintenance planning in PEPSs employing lifetime model of converters in the three mentioned hierarchical levels This will introduce a systematic method for design and planning of PEPSs in order to economically enhance the overall system performance. The main outcomes of this paper are as follows: 1- Employing the proposed MBSE approach will facilitate optimal design of PEPSs. Incorporating reliability model of converter components into the system-level design will result in economical and reliable decision-making during planning.
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