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  • Direct torque control for brushless doubly-fed machines

    Creator:
    Brassfield, William R.
    Abstract:
    The Brushless Doubly-Fed Machine (BDFM) has recently become an important research topic in the field of variable-speed AC drives. In recent studies, the BDFM has shown significant potential for improving the reliability and performance of AC drive systems, as well as reducing total system cost. While the BDFM offers several...
    Resource Type:
    Masters Thesis
    Full Text:
    the sake of fairness and completeness. First, the stator and rotor design for the BDFM are more

  • Design studies relating to the brushless doubly-fed automotive alternator

    Creator:
    Ravi, D. K.
    Abstract:
    The alternators in today's automobiles are of the claw-pole or Lundell construction, which is a readily manufactured, low-cost derivative of the conventional rotating dc field synchronous generator. The efficiency of the Lundell system is low due to a complicated magnetic circuit of predominantly solid steel and a high windage rotor...
    Resource Type:
    Masters Thesis
    Full Text:
    Electrical and Computer Engineering presented on June 8, 1992. Title : Design Studies Relating to the Brush

  • Hardware design and protection issues in an AC/AC converter

    Creator:
    Faveluke, Alex
    Abstract:
    An AC/AC converter has been designed and implemented for the purpose of providing a modular drive system with a Brushless Doubly-Fed Machine (BDFM.) This converter is to be used in laboratory testing and also as part of a demonstration system in the field. All hardware needed to start and run...
    Resource Type:
    Masters Thesis
    Full Text:
    Hardware design and protection issues in an AC/AC converter

  • Design and development of a controller for a brushless doubly-fed automotive alternator system

    Creator:
    Javadekar, Virendra S.
    Abstract:
    The loads on the electrical systems of automobiles are projected to increase significantly in the near future. This will result in a requirement for improved efficiency over the present-day car alternators. An alternative scheme proposed at Oregon State University employs a Brushless Doubly-Fed Machine (BDFM) as an alternator. This thesis...
    Resource Type:
    Masters Thesis
    Full Text:
    Design and development of a controller for a brushless

  • System optimization studies related to stator design and AC/AC converter selection for brushless doubly-fed machines

    Creator:
    Bhowmik, Shibashis
    Abstract:
    The advent of superior power semiconductor devices and converter topologies has renewed interest in ac drive systems. Although considerable research efforts have gone into improving power electronic converter devices and topologies, very little has been reported on the overall performance optimization of induction machine drive systems. The report of the...
    Resource Type:
    Masters Thesis
    Full Text:
    System optimization studies related to stator design and