Failure Detection by Signal Similarity Measurement of Brushless DC Motors

Energies

Franco Bernelli-Zazzera¹  MaríaÁngeles Martín Prats²  VitoMario Fico³  AntonioLeopoldo Rodríguez Vázquez³ 

[1]Department of Aerospace Science and Technology, Politecnico di Milano, 20156 Milan, Italy

[2]Escuela Técnica Superior de Ingeniería, Electronics Engineering Department, Universidad de Sevilla, 41092 Seville, Spain

[3]Skylife Engineering, 41092 Seville, Spain

关键词: failure;    PMSM;    detection;    diagnosis;    BLDC;    brushless;    phase voltage similarity;   

DOI  :  10.3390/en12071364

来源: DOAJ

【 摘 要 】

In recent years, Brushless DC (BLDC) motors have been gaining popularity as a solution for providing mechanical power, starting from low cost mobility solutions like the electric bikes, to high performance and high reliability aeronautical Electro-Mechanical Actuator (EMA). In this framework, the availability of fault detection tools suited to these types of machines appears necessary. There is already a vast literature on this topic, but only a small percentage of the proposed techniques have been developed to a sufficiently high Technology Readiness Level (TRL) to be implementable in industrial applications. The investigation on the state of the art carried out during the first phase of the present work, tried to collect the techniques which are closest to possible implementation. To fill a gap identified in the current techniques, a partial demagnetisation detection method is proposed in this paper. This technique takes advantage of the asymmetries generated in the current by the missing magnetic flux to detect the failure. Simulations and laboratory experiments have been carried out to validate the idea, showing the potential and the easy implementation of the method. The results have been examined in detail and satisfactory conclusions have been drawn.

【 授权许可】

Unknown