一种采用非接触式反馈和自主换相的无线永磁无刷直流电机

This article proposes and implements a wireless permanent-magnet brushless DC (PM-BLDC) motor, which realizes precise closed-loop speed control and autonomous commutation by offering rotor position feedback in a contactless approach. To reduce the system complexity, a three-phase four-switch (TPFS) inverter is newly used to control the wireless motor. Incorporated with two orthogonal bipolar coils...