The brushless doubly fed reluctance machine (BDFRM) is receiving an increased amount of attention from the research community thanks to its potential as alternative drive for variable speed applications, both motor and generator. Currently, sizing BDFRM in literature based on model ideal axially laminated rotor (ALR) discrepancies are hidden compensation factors which turn tuned with a finite e...

This paper provides a method to directly extractK element, or partial reluctance from the physical meaning of partial reluctance. The approach of directK extraction reveals the locality nature of partial reluctance and explains why inductance effect can be captured by sparseK matrix without knowing the current loop first. We use a 3-D discretization of a magneto-quasi-static integral formulatio...

A novel model reference adaptive system for the rotor position/speed estimation and sensorless operation of a brushless doubly fed reluctance generator with maximum power point tracking is presented. Its main advantage over existing designs are inherent robustness stability afforded by complete parameter independence using only measured currents converter-fed (secondary) winding. In addition, r...

Variable speed operation of a wind turbine generator improves its energy capturing capability. Up to the present, the machines employed have been induction machines, conventional synchronous machines or DC machines. The major drawback of these machines is that a complicated arrangement of slip rings or commutators with brushes, and a full-rating power converter are required. Reliability and cos...

Variable speed constant frequency generating systems are used in wind power, hydro power, aerospace and naval power generations to enhance efficiency and reduce friction. In these applications, an attractive candidate is the slip power recovery system comprising of doubly-excited induction machine or doubly-excited brushless reluctance machine and PWM inverters with dc link. In this paper, a fl...

The accurate magnetic model is mandatory for high-performance control of high anisotropy synchronous machines. This paper presents a time-efficient and identification based on triangle current injection while the machine under test driven at constant speed by prime mover. pattern allows scanning whole range current, reducing time compared to standard constant-speed method (CSM) with same level ...