Proceedings Article10.1109/APEC.2018.8341007
Controller and EMI filter design for modular front-end solid-state transformer
Jung-Muk Choe,Chih-Shen Yeh,Oscar Yu,Moonhyun Lee,Hao Wen,Jih-Sheng Lai,Lanhua Zhang +6 more
- 04 Mar 2018
- pp 188-192
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TL;DR: Simulations showed the EMI filter reduced noise below FCC Class A standards and the results show that at low voltage level, the input current waveform is nearly sinusoidal.
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Abstract: This paper discusses the details of the control scheme and EMI filter design for a modular front-end solid-state transformer (SST). The multi-cell configuration is achieved by connecting the active-front-end (AFE) cells in series, with the voltage from the MV evenly distributed among the cells. The isolated outputs of the dc-dc converters are tied in parallel. The EMI filter is designed to reduce line impedance and switching noise. Simulations showed the EMI filter reduced noise below FCC Class A standards. The SST controller consists of a voltage controller, current controller, and a phase lock loop (PLL) with an ideal duty feedforward. The implementation of these subsystems is explained and its integration in the system is shown. The results show that at low voltage level, the input current waveform is nearly sinusoidal.
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Citations
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Analytical Approach for Common Mode EMI Noise Analysis in Dual Active Bridge Converter
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A Study on High Frequency Transformer Design in Medium-voltage Solid-state Transformers
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- 01 Oct 2018
TL;DR: In this article, a planar transformer for a medium-voltage (MV) SST is proposed to mitigate the threat of partial discharge. But, the design should also consider skin effect and other effects induced by ac electromagnetic field.
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Design and Analysis of High-Voltage Blocking in Drain–Source Synchronous Rectifier Controllers for kV Operation
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A Simulation-Based Multifunctional Differential Mode and Common Mode Filter Design Method for Universal Converters
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