Noise Reduction in Open-Loop Hall-Effect-Based Current Sensing for Current-Controlled Three-Phase AC-DC Converters
Conference: PCIM Europe 2022 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2022 - 05/12/2022 at Nürnberg, Germany
doi:10.30420/565822157
Proceedings: PCIM Europe 2022
Pages: 5Language: englishTyp: PDF
Authors:
Gomez, Alexis A. (University of Oviedo, Spain)
Pigazo, Alberto; Branas, Christian; Casanueva, Rosario; Diaz, Francisco Javier; Azcondo, Francisco J. (University of Cantabria, Spain)
Abstract:
Open-loop Hall-effect-based current measurements and their associated signal conditioning circuits are prone to suffer conducted EMI issues in AC current-controlled AC-DC converters; especially if the number of low performance auxiliary PSUs is small and the current sensor measuring range is wide. Moreover, this effect become worse when low-cost microcontrollers are used to implement the digital control in three-phase power converters. This manuscript provides an experimental evaluation of the current measurement under those circumstances with two different signal conditioning circuits.