Simulation-Based Comparative Analysis of Fuzzy Logic Control on 32-Bit Floating-Point and 16-Bit Fixed-Point DSPs for Non-Ideal Converters

Dr. Sham M V

Fuzzy Logic Control, Buck–Boost Converter, Fixed-Point DSP, Floating-Point DSP, Quantization Effects.

As digital control systems for high-frequency power electronics evolve, the demand for robust, non-linear control strategies grows. This paper presents a simulation-based comparative evaluation of a Fuzzy Logic Controller (FLC) for a non-ideal Buck-Boost converter, modelled to reflect implementation on two distinct DSP platforms: the 16-bit fixed-point TMS320LF2407 and the high-performance 32-bit floating-point TMS320F28335. The converter model incorporates key parasitic elements to enable realistic characterization of system damping and ripple behaviour [1,2,7]. The MATLAB simulation environment is configured to emulate the specific hardware constraints of each processor, focusing on computational overhead, execution latency, and steady-state error. While the simulated TMS320F28335 powers its hardware floating-point unit (FPU) to execute complex Trapezoidal-based fuzzy algorithms within a 10 µs interrupt window, the TMS320LF2407 model demonstrates the need for fixed-point scaling to handle the same computational load. The results establish that integrating numerical modelling with intelligent control provides superior transient response and reduced limit-cycle oscillations when executed on advanced 32-bit floating-point processors

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"Simulation-Based Comparative Analysis of Fuzzy Logic Control on 32-Bit Floating-Point and 16-Bit Fixed-Point DSPs for Non-Ideal Converters", TIJER - TIJER - INTERNATIONAL RESEARCH JOURNAL (www.TIJER.org), ISSN:2349-9249, Vol.3, Issue 12, page no.a8-a12, December-2016, Available :https://tijer.org/TIJER/papers/TIJER1612002.pdf

Volume 3 Issue 12, December-2016

Pages : a8-a12

Paper Reg. ID: TIJER_161297

Published Paper Id: TIJER1612002

Downloads: 000275

Research Area: Science and Technology

Country: -, -, India

Published Paper PDF: https://tijer.org/TIJER/papers/TIJER1612002

Published Paper URL: https://tijer.org/TIJER/viewpaperforall?paper=TIJER1612002

ISSN: 2349-9249 | IMPACT FACTOR: 8.57 Calculated By Google Scholar | ESTD YEAR: 2014

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.57 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Publisher: TIJER (IJ Publication) Janvi Wave

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