Energies (May 2020)

FPGA-Based System for Electromagnetic Interference Evaluation in Random Modulated DC/DC Converters

  • Hermes Loschi,
  • Piotr Lezynski,
  • Robert Smolenski,
  • Douglas Nascimento,
  • Wojciech Sleszynski

DOI
https://doi.org/10.3390/en13092389
Journal volume & issue
Vol. 13, no. 9
p. 2389

Abstract

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Field-Programmable Gate Array (FPGA) provides the possibility to design new “electromagnetic compatibility (EMC) friendly” control techniques for power electronic converters. Such control techniques use pseudo-random modulators (RanM) to control the converter switches. However, some issues connected with the FPGA-based design of RanM, such as matching the range of fixed-point numbers, might be challenging. The modern programming tools, such as LabVIEW, may facilitate the design process, but there are still fixed-point operations and limitations in arithmetic operations. This paper presents the design insights on the FPGA-based EMC friendly control system for DC/DC converter. Probability density functions (PDF) are used to analyse and improve pseudo-random algorithms. The theoretical algorithms, hardware details and experimental results are presented and discussed in terms of conducted electromagnetic interference emission.

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