Pseudo direct drive simulation and analysis

• Published in: Compel Vol. 37; no. 5; pp. 1722 - 1731
• Main Authors: da Costa Neves, Carlos Guilherme, Flores Filho, Aly Ferreira, Goettems, Mateus Felipe, Borges, Pablo Augusto Machado
• Format: Journal Article
• Language: English
• Published: Bradford Emerald Publishing Limited 30-10-2018; Emerald Group Publishing Limited
• Subjects: Alternative energy sources; CAD; Cogging; Computer aided design; Computer simulation; Finite element method; Generators; Magnetism; Mathematical models; Metal fatigue; Permanent magnets; Torque; Turbines; Two dimensional models; Wind power; Pseudo direct drive; Moving bands; Pull-out torque; Electromotive force; Permanent magnet arrays; Magnetic gear
• ISSN: 0332-1649; 2054-5606
• DOI: 10.1108/COMPEL-01-2018-0008

Purpose
The purpose of this paper is to simulate a pseudo direct drive (PDD) by using permanent magnet arrays.
Design/methodology/approach
A 2D finite element model of the PDD was built. The static magnetic torque on air-gaps was obtained by Coulomb’s virtual work method using Ansys Maxwell software. To simulate the relative movement between input rotor and output rotor, two movement bands were applied.
Findings
The PDD’s torque relation was proved. The PDD simulated presents low cogging torque.
Practical implications
The manufacturing steps and materials applied in a construction of a coaxial magnetic gear, PDD’s main component, are presented.
Originality/value
The value of this paper is to present the numerical techniques applied to simulate a PDD and the manufacturing steps and materials applied in a construction of a coaxial magnetic gear.