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Due to the complexity of structure as well electromagnetic coupling, accurate calculation of self and mutual inductances of stator and rotor windings for doubly fed brushless machine (DFBM) with cage rotor is difficult which is likely to lead to inaccuracy in performance analysis. In this paper, a method of parameter calculation and performance simulation based on combined magnetic field analysis...
The permanent magnet (PM) generator direct-driven by wind turbine has the advantages of high efficiency, simple structure and reliable operation, and the features of low speed, multi-pole and large size. How to utilize sufficiently the structural dimension, improve the performance and reduce the cost of the machine by proper choice of the pole number and stator slot number is an important problem...
Because of its unique properties, such as brushless structure, high torque and power density, the claw pole motor will have widely application foreground. This paper introduces a new type of permanent magnet claw pole motor (PMCPM) with outer rotor. The electrical circuit model of this kind of motor have been built, The operation characteristics are simulated by means of powerful simulation software...
This paper presents a comparative study on four different structures of variable speed constant frequency (VSCF) wind power generator. The analysis results show that the direct-driven permanent magnet (PM) generator has good performance but high cost; the doubly-fed induction generator has low cost but poor reliability; the half-direct-driven PM generator and doubly-fed brushless generator may be...
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