Analysis and Design of a Brushless WRSM with Harmonic Excitation Based on Electromagnetic Induction Power Transfer Optimization
Year: 2025
Type: article
Abstract: This paper proposes a method to analyze the effect of the rotor’s harmonic winding design and the output of a brushless wound rotor synchronous machine (WRSM) for optimal excitation power transfer. In particular, the machine analyzed by the finite-element method was a 48-slot eight-pole 2D model. The subharmonic magnetomotive force was additionally created in the air gap flux, which induces voltage in the harmonic winding of the rotor. This voltage is rectified and fed to the field winding through a full bridge rectifier. Eventually, a direct current (DC) flows to the field winding, removing the need for external excitation through brushes and sliprings. The effect of the number of harmonic winding turns is analyzed and the field winding turns were varied with respect to the available rotor slot space. Optimization of the harmonic excitation part of the machine will maximize the rotor excitation for regulation purposes and optimize the torque production at the same time. Two-dimensional finite-element analysis has been performed in ANSYS Maxwell 19 to obtain the basic results for the design of the machine.
Source: Magnetism
Authors: Arsalan Arif, Farhan Arif, Zuhair Abbas, Ghulam Jawad Sirewal, Muhammad Saleem, Qasim Ali, Mukhtar Ullah
Institutions: Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, National University of Computer and Emerging Sciences, Incheon National University, Benazir Bhutto Shaheed University of Technology and Skill Development, Benazir Bhutto Shaheed University Lyari, Inha University, Sukkur IBA University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,207
OpenAlex ID: W4415360341