Year: 2024
Type: book-chapter
Abstract: Permanent Magnet Synchronous Motors (PMSM) are an evolved form of conventional synchronous motors, distinguished by the replacement of the field electromagnet with a permanent magnet. This alteration enhances efficiency by 10% compared to traditional synchronous motors, attributed to reduced field copper loss and heightened torque and power density. PMSMs find extensive applications in automation, agriculture, military, aerospace, medical, and electric vehicles, with global markets spanning North and South America, Europe, the Middle East, Africa, and Asia Pacific, particularly China. Key manufacturers include General Electric, DRS Technology, Rockwell Automation, Mitsubishi Electric, Siemens, Toshiba, Emerson, ABB, WOLONG, and WEG, offering power ratings from several kW to 600 kW. Historically, Ferrites and Alnico magnets were used in PMSMs but faced challenges like brittleness and low remanence. The breakthrough in the 1980s came with rare-earth permanent magnets like Samarium-Cobalt and Neodymium-Iron-Boron, overcoming demagnetization issues. PMSMs are categorized as radial or axial flux motors, and by induced EMF nature, into sinusoidal or trapezoidal types. The rotor's permanent magnet placement further distinguishes them into Surface Mount PM, Inset PM, and Interior PM synchronous motors. The chapter explores permanent magnet properties, PMSM classifications, operating principles, steady-state circuits, dynamic models, and control strategies in five sub-topics, providing a comprehensive understanding of Permanent Magnet Synchronous Motor technology.
Source: Wiley eBooks
Authors: Mousumi Jana Bala, Chandan Jana
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4400107971