Johann W. Kolar

TL;DR: This paper introduces the methodology and the results of a comprehensive comparison of a direct matrix converter, an indirect MC, and a voltage dc-link back-to-back converter for a 15-kW permanent magnet synchronous motor drive.

TL;DR: It is found that SSTs are less efficient than low-frequency transformers (LFTs), yet their prospective prices are significantly higher, and four essential challenges in detail are discussed, distilled into an applicability flowchart for SST technology.

TL;DR: In this paper, all main modern SST topologies realize the common key characteristics of these transformers-medium-frequency (MF) isolation stage, connection to medium voltage (MV), and controllability-by employing combinations of a very few key concepts, which have been described or patented as early as the 1960s.

TL;DR: This paper presents a review of the current state of the art in terms of practical matrix converter technologies and reports on the reported use of the matrix converters in different applications.

TL;DR: In this paper, the authors describe the optimization of inductive power transfer (IPT) coil systems with respect to efficiency and area-related power density as required in electric vehicle applications.