Improved Design Automation Combinatorial Algorithms for Multi-Objective Optimization of High Voltage-Gain DC-DC Converters

In power electronics, it is necessary to optimize volume, efficiency, voltage-gain, cost, and useful life, among other objectives, to obtain an adequate balance that offers high performance in electrical systems. In this context, this paper presents the development of a multi-objective optimization design methodology for inductive components for high voltage-gain converters. This work is carried out by: 1) reviewing several step-up converters and selecting a suitable topology for optimization; 2) performing a power loss modelling of the magnetic components of the high voltage gain topology with an emphasis on iron and copper losses; 3) conducting a volume modelling of the converter with special attention to the magnetic components; and 4) evaluating the multi-objective optimization approach of improved combinatorial algorithms to solve problems with opposite objectives such as efficiency, power density, and voltage-gain in power converters when parasitic components are taken into account.