Multi-Objective Optimization for Power Conversion System Design in Grid-Connected Hybrid Energy Storage System.
Authors/Creators
- 1. Institut de Recerca de l'Energia de Catalunya: Barcelona, Catalunya, ES
Description
The increasing integration of renewable energy sources and energy storage systems into
the electrical grid demands the development of high-performance power conversion technologies.
In this context, the design of efficient and reliable power conversion systems (PCS) is crucial for the
integration of these energy sources. The use of optimization tools facilitates the selection of power
conversion architectures and converter topologies that enhance overall efficiency and reliability
while reducing development time. This paper presents an advanced optimization tool developed
for designing the dc-ac PCS of HESS, which integrates a lithium-titanate-oxide (LTO) battery and
an aqueous-organicredox-flow (AORF) battery for grid connection. Four conversion architectures
are explored with different degrees of dc-dc and dc-ac module parallelization. A set of optimization
problems is defined to obtain the Pareto front of solutions for each architecture, resulting in different
trade-offs between the system’s performance metrics.