Reliability/Cost-based Power Routing in Power Electronic-based Power Systems

This paper proposes a unified power routing strategy for optimal and reliable operation of power electronic-based power systems. The overall reliability of the system will be enhanced by devolving the load of highly damaged power converters to lowly damaged ones. However, it may introduce higher operational costs for lowly damaged converters. Therefore, the reliability support from these converters will be performed with respect to their operational costs. This will guarantee lower operational costs and higher reliability of the system in addition to preventing over-stressing of converters. The simulations and numerical analysis illustrate that the proposed approach has higher reliability compared to the conventional approach and lower operational costs compared to the pure reliability-oriented methods.