This work focuses on the development of high performance sensorless controllers for PMSM drives. Main contributions are as follows: a linearly compensated sensorless flux observer based on back EMF is proposed; using Delta-Sigma modulator, based on FPGA current oversampling and signal processing techniques, a lower HF current response is sufficient to implement HF voltage injection sensorless control methods; for the EKF based sensorless observer, it demonstrates that different frame models have notably various influences on the FPGA based implementation; a continuous set nonlinear model predictive control (CS-NMPC) for PMSM drives is proposed; a model based design (MBD) method for fully FPGA based drive system controller is presented.
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This work focuses on the development of high performance sensorless controllers for PMSM drives. Main contributions are as follows: a linearly compensated sensorless flux observer based on back EMF is proposed; using Delta-Sigma modulator, based on FPGA current oversampling and signal processing techniques, a lower HF current response is sufficient to implement HF voltage injection sensorless control methods; for the EKF based sensorless observer, it demonstrates that different frame models ha...
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