Fuzzy optimization techniques applied to the design of a digital BLDC servo drive

Kuang Y. Cheng*, Ying-Yu Tzou

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations


This paper presents a novel design approach by applying fuzzy optimization techniques to design a digital brushless dc servo drive. The system specifications and design variables are firstly specified. The servo responses are then fed back to evaluate the overall system performances, which are expressed as cost functions with respect to the design variables. According to the cost functions and specifications, each design variable can be properly tuned toward the optimal value by using the proposed fuzzy optimization techniques. Besides, once the optimum design is achieved, the proposed fuzzy optimization strategy can perform as an intelligent controller for on-line gain adaptation with different loading conditions. Simulation and experimental results indicate that the servo control parameters can be optimized to achieve minimum cost under large uncertain load variations.

Original languageEnglish
Article number1022380
Pages (from-to)1451-1456
Number of pages6
JournalPESC Record - IEEE Annual Power Electronics Specialists Conference
StatePublished - 23 Jun 2002
Event2002 IEEE 33rd Annual Power Electronics Specialists Conference (PESC) - Cairns, Australia
Duration: 23 Jun 200227 Jun 2002


  • Digital BLDC servo drive
  • Fuzzy optimization strategy
  • Hierarchical expert-tuning architecture

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