Multi-Objective Design Optimization of Renewable Energy System Inverters using a Descriptive Language for the Components
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abstract
Optimization of power electronic converters is certainly not a new subject. However, past efforts have been focused on the use of commercial off-the-shelf components in the design optimization. Thus the resulting system was really optimized only over the set of available components which may in fact represent only a subset of the design space; a reachable space limited somewhat artificially by available components and technologies. While this approach is suited for the engineer seeking to cost-reduce an existing design, it offers little insight into design possibilities for greenfield projects. Instead, this paper seeks to first broaden the reachable design space to identify a globally optimal design for some given objective, from which specifications for the individual components can be derived. A unique outcome of this approach is that new technology development vectors are expected to develop optimized components for the optimized power converter. The approach presented in this paper uses a descriptive language to abstract the characteristics and attributes of the components used in a power electronic converter in a way suitable for multi-objective and constrained optimization methods. This paper will apply this concept by developing generalized energy loss models under non-sinusoidal waveforms for the three most prevalent power supply components: semiconductor switches, inductors and capacitors, these models will be used to form an objective function for the optimization problem, weighted by the optimization parameters of size, weight, cost, and performance. 2011 IEEE.
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2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
