D-Q-axis magnetic field design and investigation of asymmetrical multi-layer flux barriers PM motor for speed regulation enhancement

• DOI: 10.1063/9.0000725
• Publication Date: 2024-01-17T17:51:37Z
• Authors: Liujie Ji; Li Quan; Xiaoyong Zhu; Zixuan Xiang; Deyang Fan; Shiyue Zheng; Min Jiang
• Keywords: Saturation (graph theory); Magnetic circuit; Magnetic reluctance

In this paper, an asymmetrical multi-layer flux barriers permanent magnet (AMFB-PM) motor is proposed. The key of study to design the d-q-axis magnetic field reasonably. Firstly, influence d-axis inductance on constant power speed range analyzed. To optimize regulation performance, asymmetric barrier employed adjust saturation degree circuit under flux-weakening state. Additionally, introduction enables directional deflection reluctance torque, thereby enhancing output torque. analysis results verify effectiveness design, which provide a wide with operation and high torque density for PM motors.