Direct Δ Σ Signal Processing for Control of Power Electronics
Conference: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2016 - 05/12/2016 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2016
Pages: 8Language: englishTyp: PDF
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Authors:
Homann, Michael; Klein, Axel; Schumacher, Walter (Technische Universität Braunschweig, Germany)
Abstract:
A new approach for the signal processing in control loops is the direct signal processing of a δ σ (DeltaSigma) bit stream. The advantages are a high bandwidth in the control loop and lower timing constraints for measurement synchronization. In this paper, the main focus is on the performance improvement of δ σ signal processing (DSSP) structures. Different architectures and modulator orders are analyzed regarding signal to noise and distortion ratio (SNDR) and dynamic performance of a single DSSP operation. Furthermore, the SNDR decline in a cascade of DSSP operation is examined and the step response of a phase current control loop of a permanent magnet synchronous machine using DSSP is shown.