期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 69, 期 3, 页码 2749-2758出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2021.3065625
关键词
Modulation; Magnetic fields; Synchronous motors; Iron; Magnetization; Permanent magnets; Permanent magnet motors; High-speed motor; low thrust ripple; permanent magnet (PM) width modulation secondary; PM linear synchronous motor (PMLSM)
资金
- National Natural Science Foundation of China [51907059]
- Natural Science Foundation of Hunan Province of China [2019JJ50069]
This article proposes a novel secondary topology for high-speed permanent magnet linear synchronous motor (PMLSM) to suppress thrust ripple. The secondary structure adopts multiple permanent magnets to excite the main magnetic field per pole, achieving a magnetic field with excellent sinusoidal features. The influences of the secondary structure on the main magnetic field and thrust properties are analyzed. Comparisons between two PMLSMs with different secondary structures are provided, and prototypes are manufactured and tested to verify the effectiveness of the proposed topology.
High-speed linear motor with low thrust ripple is one of the research focuses of high-performance systems. This article proposes a novel secondary topology for permanent magnet (PM) linear synchronous motor (PMLSM) with high speed, to suppress the thrust ripple. PM width modulation secondary adopts several PMs to excite the main magnetic field per pole. The issues from a big pole pitch, which is generally used by high-speed PMLSM, are solved. These PMs have various longitudinal lengths based on the pulsewidth modulation principle, to achieve a magnetic field with excellent sinusoidal features. First, the topology structure of PM width modulation secondary is designed. The analytical model of the main magnetic field excited by PMs in this novel secondary is established, and the electromagnetic thrust is calculated. Furthermore, the influences of PM width modulation secondary on the main magnetic field and thrust properties are analyzed. The comparisons between two PMLSMs employing PM width modulation secondary and Halbach secondary, respectively, are provided. Finally, prototypes are manufactured and tested, to verify the effectiveness of the topology proposed in this article.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据