Hardware approach of two way conversion of floating point to fixed point for current dq PI controller of FOC PMSM drive

M. Marufuzzaman, Md. Mamun Ibne Reaz, M. A M Ali, L. F. Rahman

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Real time self-automated hardware implementation of current dq PI controller for FOC PMSM is desired. Nevertheless, the controller needs some floating-point calculations, which necessitate expensive computing elements. Moreover, additional bits for implementing arithmetic operations are required for floating point calculation. This research proposed a hardware approach of 64bit floating point to 16-bit fixed-point conversion and vice versa. This conversion method will reduce the bit requirements. Any application which is required 16-bit floating-point calculation can be used this two-way conversion technique. In addition, current dq PI controller uses 16-bit I/O bus. Thus, hardware approach of this two-way conversion is a prerequisite for FPGA realization of current dq PI Controller for FOC-PMSM drive. The outcome of this research is a single chip 16bit to 64bit IEEE 754 standard number format converter for current dq PI controller of FOC-PMSM drive.

Original languageEnglish
Pages (from-to)79-82
Number of pages4
JournalElektronika ir Elektrotechnika
Volume123
Issue number7
DOIs
Publication statusPublished - 2012

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Hardware
Controllers
Field programmable gate arrays (FPGA)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Hardware approach of two way conversion of floating point to fixed point for current dq PI controller of FOC PMSM drive. / Marufuzzaman, M.; Ibne Reaz, Md. Mamun; Ali, M. A M; Rahman, L. F.

In: Elektronika ir Elektrotechnika, Vol. 123, No. 7, 2012, p. 79-82.

Research output: Contribution to journalArticle

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