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Resource optimal FPGA implementation of a Least-Squares-Estimator for fast and robust online measurement of current slope and absolute value

Resource optimal FPGA implementation of a Least-Squares-Estimator for fast and robust online measurement of current slope and absolute value
Autor:

Andreas Liske, Simon Decker, Michael Braun

Links:
Quelle:

2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe),

DOI: 10.23919/EPE.2019.8915548

Datum: 03.09.2019

This paper presents an improved Least-Squares-Estimator for the fast, non-recursive online measurement of the first derivative and absolute value of a piecewise linear oversampled current signal. Core topic is the partially online calculation of the pseudoinverse matrix in combination with an optimized small lookup table, minimizing memory requirements significantly.