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Your search keyword '"Scelba, Giacomo"' showing total 16 results
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16 results on '"Scelba, Giacomo"'

16. A Low THD Three-Level Rectifier For Gen-Set Applications

Author

Giacomo Scelba, V. Sabatini, Luca Solero, S. Foti, Alessandro Lidozzi, Antonio Testa, Foti, Salvatore, Testa, Antonio, Scelba, Giacomo, Sabatini, Valerio, Lidozzi, Alessandro, and Solero, Luca

Subjects
multilevel rectifiers, Computer science, Topology (electrical circuits), Permanent magnet synchronous generator, Capacitor balancing, Industrial and Manufacturing Engineering, law.invention, Rectifier, law, high-speed generators, low current total harmonic distortion (THD), Electrical and Electronic Engineering, Power MOSFET, Total harmonic distortion, hybrid modulation, total harmonic distortion (THD), business.industry, Electrical engineering, AC power, low current, Capacitor, Control and Systems Engineering, Inverter, Capacitor balancing, high-speed generators, hybrid modulation, low current, total harmonic distortion (THD), multilevel rectifiers, business
Abstract

A low input current total harmonic distortion (THD) rectifier is presented, tailored around an open-end winding permanent magnet synchronous generator. Specifically, a six-level converter topology is obtained by connecting the generator stator winding to a three level T-type unidirectional rectifier on one side, and to an auxiliary two-level inverter on the other side. The T-type rectifier manages the entire active power stream and operates at the line frequency in order to minimize the switching power losses. The auxiliary inverter is instead driven by a standard PWM technique, being tasked to sinusoidally shape the input current and to actively balance the voltage across the dc-bus capacitors of the T-type rectifier. Such an inverter, being rated at a lower power and at a lower voltage than the T-type rectifier, can exploit low-cost power mosfet s. The proposed topology, featuring a very low input current THD, could well supplement in aircraft, portable or distributed generation applications, modern high-speed permanent magnet synchronous generators featuring a quite small stator impedance. Simulation and experimental results confirm the effectiveness of the proposed configuration.

Published
2019

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