نوع مقاله : علمی-پژوهشی
نویسندگان
1 گروه قدرت، دانشکده مهندسی برق و کامپیوتر، دانشگاه کاشان
2 هیات علمی/دانشگاه کاشان، دانشکده مهندسی برق و کامپیوتر
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Six-phase PMSMs are widely used in high-power applications due to their high torque density and reliability. This paper focuses on controlling a specific type of asymmetrical six-phase PMSM, where each stator phase consists of two co-directional windings. The motor's 12 windings are configured as four three-phase sets with star connections. Each three-phase set is powered by a six-switch three-phase inverter, and each inverter is independently controlled by a local microcontroller, resulting in a modular power and control structure for each set. Due to the absence of data exchange between local microcontrollers and the non-sinusoidal back-EMF of the motor phases, dynamic modeling in a two-axis reference frame is not feasible. Therefore, the motor is modeled and controlled in a stationary six-axis reference frame. The drive's behavior under various open-circuit fault conditions in one or more windings is analyzed, and a fault-tolerant control algorithm is proposed for each fault scenario to mitigate torque ripple. Theoretical analyses are validated through software simulations in Simulink.
کلیدواژهها [English]
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