Fundamental sensing issues in motor control.

摘要

The reduction in computational and hardware costs coupled with increased energy costs have driven manufacturers to consider inverter driven permanent magnet machines in applications. To further reduce cost, high-resolution mechanical sensors are replaced with low-resolution sensors or are entirely eliminated. Key issues in the implementation and limitation of these techniques include the signal-to-noise ratio of the position dependent signal, the inaccuracies of the remaining sensor circuitry, the bandwidth and disturbance rejection of the position estimation and the effects quantization has on efficiency and disturbance rejection. This thesis presents methodologies addressing these fundamental sensing issues.