By Jean?Paul Louis(auth.)
Synchronous cars are surely the best machine to force commercial creation structures and robots with precision and rapidity. Their regulate legislation is hence serious for combining whilst excessive productiveness to diminished strength consummation. so far as attainable, the regulate algorithms needs to take advantage of the houses of those actuators. consequently, this paintings attracts on good tailored types as a result of the Park’s transformation, for either the main conventional machines with sinusoidal box distribution and for machines with non-sinusoidal box distribution that are increasingly more utilized in undefined. either, traditional regulate techniques like vector regulate (either within the synchronous reference body or within the rotor body) and complex keep an eye on theories like direct keep watch over and predictive regulate are completely offered. during this context, an important position is reserved to sensorless regulate that is an incredible and demanding factor in tomorrow’s motors.Content:
Chapter 1 Synchronous motor controls, difficulties and Modeling (pages 1–48):
Chapter 2 optimum offer and Synchronous cars Torque keep watch over (pages 49–117):
Chapter three optimum provides and Synchronous vehicles Torque Controls. layout within the d?q Reference body (pages 119–172):
Chapter four force Controls with Synchronous vehicles (pages 173–220):
Chapter five electronic Implementation of Vector regulate of Synchronous vehicles (pages 221–250):
Chapter 6 Direct regulate of an enduring Magnet Synchronous computer (pages 251–281):
Chapter 7 Synchronous computer and Inverter Fault Tolerant Predictive Controls (pages 283–304):
Chapter eight Characterization of regulate and not using a Mechanical Sensor in everlasting Magnet Synchronous Machines (pages 305–346):
Chapter nine Sensorless keep watch over of everlasting Magnet Synchronous Machines: Deterministic tools, Convergence and Robustness (pages 347–400):
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Extra resources for Control of Synchronous Motors
It is frequent that these non-sinusoidal machines are studied within the meaning of the first harmonic, but, we can perform much more precise studies relative to all the harmonics, as we will show in Chapter 2. 47] (Note: the index “ns” indicates the nonsinusoidal case). 10 compares the flux derivatives for the three cases: sinusoidal, nonsinusoidal, trapezium ( δ = π 6 ). If we consider that the “non-sinusoidal case” is the general case, we can admit that the trapezoidal and the sinusoidal case are two levels of approximation and idealization.
1. Factorized matrix modeling We consider the case of sinusoidal field distribution machines. 11] is strongly non-linear. We will see that the controls designed in this (natural a-b-c) reference frame are, either not very efficient, or difficult to implement. e. changes of reference frames simplifying the equations’ form, making them more suited to the design of performance controls. These changes of reference frames have been detailed in [SEM 04] and [LOU 04d]. They are also the subject of specialized books ([LES 81], [CHA 83]).
4. 76] Problems and Modeling 31 to insist on the analogy between “the q axis” of the synchronous machine and “the armature” of the direct current motor. 6. Can we extend the Park transformation to synchronous motors with nonsinusoidal field distributions? The Park transformation has excellent properties. It leads to the simplest possible writing of the equations of the machine in dynamic regime and to the determination of efficient control laws (this will be the object of Chapter 3). But, can we extend it to machines not answering the three conventional hypotheses (linearity, circularity, sinusoidal field distribution)?