Abstract
The brushless dual-electrical-port dual-mech-anical-port machine (BLDDM) is increasingly developed as an effective power split device for continuously variable transmission due to its compactness and high control flexibility. However, the torque performance of BLDDM is relatively disadvantageous. In this article, a novel BLDDM using a high-order harmonic modulation is proposed to improve the torque density of BLDDMs. The key is that the compound outer rotor is artificially designed to enhance the third harmonic component of airgap flux density in the inner airgap while remaining the fundamental component unchanged in the outer airgap. The presented BLDDM is optimized and compared with the conventional design with the same structural dimensions, which shows that the proposed design has 50% higher back EMF in modulation winding and 45.7% larger torque density in the rated conditions. The machine prototype is made and tested, and the experimental results verify the feasibility and advantages of the proposed design.
Original language | English |
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Article number | 10195929 |
Pages (from-to) | 1-11 |
Number of pages | 11 |
Journal | IEEE Transactions on Industrial Electronics |
DOIs | |
Publication status | Published - Jul 2023 |
Keywords
- Brushless machine
- dual-electrical-port
- dual-mechanical-port
- electrical continuously variable transmission (E-CVT)
- Harmonic analysis
- high-order harmonic modulation
- Magnetic circuits
- Magnetic cores
- Modulation
- Rotors
- Torque
- Windings
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering