Permanent magnet synchronous motor drives

The aim of the chapter is to enable the power electronics community to address emerging (but proven) topics in electrical drives, with special emphasis on permanent magnet synchronous motor (PMSM) drives. Among the many alternatives, the collected material was classified according to the type of control, further detailed when necessary for the specific motor topology. The applications (automotive, industry, mechatronics and so forth) are impressively various, and they will be timely cited as soon as they either justify, enrich or aid the comprehension of a particular control technique. Section 10.2 reports the state of the art in sensorless control for PMSM, with the special target of highlighting the delicate connections between any theoretical algorithm and its implementation in the power electronic converter. With the same critical sensibility, Section 10.3 illustrates the direct torque control (DTC) and the model predictive control (MPC), reporting a selected example of application, as bright and promising trend in multi-object, energy-efficient control techniques for PMSM drives.