Assessment of Converter Performance in Hybrid AC-DC Power System under Optimal Power Flow with Minimum Number of DC Link Control Variables

This paper presents a strategy to evaluate the performances of converter stations under optimized operating points hybrid AC-DC power systems with reduced number DC link variables. Compared previous works reported five DC-side control variables (CVs), uniqueness presented optimal flow (OPF) formulation lies within selection only two such as inverter voltage and current in link, apart from conventional AC-side Previous research has mainly been focused on optimizing system performance through OPF-based formulations, but mostly ignored associated performances. Hence, this study, performance, terms ripple harmonics AC utilization infrastructure, is evaluated. The minimization active loss taken an objective function, problem solved for modified IEEE 30 bus using recently developed very efficient Archimedes optimization algorithm (AOA). Case studies are performed assess efficacy OPF model systems, well performance. Furthermore, results extended applicability proposed allocation photovoltaic (PV)-type distributed generations (DGs) systems. average improvement found be around 7.5% compared results. approximate 10% factor 50% reduction achieved.