Exploring the Effects of Voltage Variation and Load on the Electrical and Thermal Performance of Permanent-Magnet Synchronous Motors

• Published in: Energies (Basel) Vol. 17; no. 1; p. 8
• Main Authors: Tabora, Jonathan Muñoz, Correa dos Santos Júnior, Lauro, Ortiz de Matos, Edson, Mota Soares, Thiago, Arrifano Manito, Allan Rodrigo, de Lima Tostes, Maria Emília, Holanda Bezerra, Ubiratan
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01-01-2024
• Subjects: Analysis; Efficiency; Energy consumption; Innovations; Magnets, Permanent; Manufacturers; motor economics; permanent-magnet motors; power quality; synchronous motors; Temperature; voltage variation
• ISSN: 1996-1073; 1996-1073
• DOI: 10.3390/en17010008

Europe has initiated the transition process toward IE4 efficiency motor classes, setting an example for other regions to follow in adopting higher-efficiency motor standards. However, in some regions, the operating voltage may differ from the nominal voltage according to the IEC 60038-2009. Therefore, the performance of new technologies under conditions of voltage variations (VVs) must also be assessed. This study presents a comprehensive analysis of a 0.75 kW line-start permanent-magnet motor (LSPMM) under different VV magnitudes, including undervoltage and overvoltage, while considering different load conditions. The study incorporates technical, economic, statistical, and thermal analyses to obtain important indicators related to power consumption, efficiency, power factor, and temperature. This study provides valuable insights to specialists regarding the technical and economic impacts of voltage-magnitude variation on LSPMMs.