Highly Efficient SiC-based Active Infeed Converter for Industrial DC Conductor Systems
Conference: PCIM Europe digital days 2021 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/03/2021 - 05/07/2021 at Online
Proceedings: PCIM Europe digital days 2021
Pages: 8Language: englishTyp: PDF
Authors:
Koch, Jan-Niklas; Otte, Raphael; Borcherding, Holger (OWL University of Applied Sciences and Arts, Germany)
Abstract:
In this paper a highly efficient 5 kW three-phase power factor correction (PFC) converter used as an active infeed converter (AIC) for an industrial DC grid is addressed. The converter operates at 100 kHz and the nominal DC bus voltage is 650 V. The DC grid the AIC is designed for is a conductor system with distributed DC link capacitors and intelligent energy storages alongside the conductor. Due to the use of intelligent energy storages, which meet the energy demand when load transients occur, it is possible to optimize the AIC for a lower power to ensure maximum system efficiency. The design of the hardware and controller is described and measurements of characteristic currents and voltages, efficiency over the whole load range and controller responses on load transients are shown.