Modification of permanent magnet ac electric scooter motor to test controlled stator electrical faults

https://doi.org/10.58571/CNCA.AMCA.2023.030

Resumen: This paper presents the electrical modification of the windings of a 350 W three-phase permanent magnet synchronous motor (PMSM) of an electric scooter to insert short-circuit faults in a controlled manner. The in-wheel motor (outer rotor) was altered in two of its windings in order to cause two types of faults: short-circuit fault between windings and short-circuit faults between winding and stator structure (chassis). The type of fault of interest to cause is the incipient type (small in magnitude); therefore the selection of the taps will be in the same coils or close to the star point. To guarantee that the values of the electrical parameters in the windings (resistance and self inductance) correspond to those of the manufacturer, they are measured by means of instruments and the industrial method is also used to obtain the nominal values without the presence of a fault and in the presence of incipient short-circuit faults. Faults are entered manually and temporarily by means of electrical contactors; the information is measured by means of an RLC instrument and an oscilloscope for current and voltage measurement in each phase.

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Mata Barbosa, Melanie Nicole; Maldonado Ruelas, Victor Arturo; Ortiz-Medina, Raúl Arturo. Modification of permanent magnet ac electric scooter motor to test controlled stator electrical faults. Memorias del Congreso Nacional de Control Automático, pp. 109-114, 2023. https://doi.org/10.58571/CNCA.AMCA.2023.030

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Detección y Aislamiento de Fallas; Otros Tópicos Afines

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