EPE 2023 - DS3n: Big Data and Artificial Intelligence in Energy Conversion | ||
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![]() | Data-Driven Component Cost Models for Power-Electronic Converters
By Carsten FRONCZEK, Niklas FRITZ, Rik W. DE DONCKER | |
Abstract: Multi-objective optimization significantlyshortens the design time for converters and improvesinitial design decisions. In addition to technical objectives,economic aspects such as cost play a role in almost everyapplication. This paper provides cost models for convertercomponents based on publicly available data from spring2023. These cost models are based on the largest datasetof any converter-component cost model in the literature.Besides physical properties of the components, they includeeconomic factors and allow their application fromprototype to series production. The cost models wereevaluated using statistical metrics. Further, the derivedcomponent cost models serve as a basis to a simplifieddesign optimization for a 10 kW dc-dc converter.
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![]() | Data-Driven Online Stability Diagnostics for Parallel Grid-Connected Converters in Weak Grid
By Caiyun QIN, Hui XU, Feng GAO | |
Abstract: This paper presents a data-driven online diagnostics method to identify the stability of parallel grid-connected converters. Specifically, the dataset consists of summed output current of all the parallel converters at the point of common coupling (PCC) and state label. Neural network algorithm is applied to infer steady state of parallel converters. The case study validates accuracy and efficiency of the proposed method.
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