By Jean?Paul Louis(auth.)
Synchronous automobiles are indisputably the best gadget to force commercial creation structures and robots with precision and rapidity. Their keep an eye on legislations is therefore serious for combining whilst excessive productiveness to lowered strength consummation. so far as attainable, the keep an eye on algorithms needs to make the most the houses of those actuators. hence, this paintings attracts on good tailored types caused by the Park’s transformation, for either the main conventional machines with sinusoidal box distribution and for machines with non-sinusoidal box distribution that are an increasing number of utilized in undefined. either, traditional regulate recommendations like vector keep an eye on (either within the synchronous reference body or within the rotor body) and complicated keep watch over theories like direct keep watch over and predictive keep an eye on are completely provided. during this context, an important position is reserved to sensorless keep watch over that is a massive and important factor in tomorrow’s motors.Content:
Chapter 1 Synchronous motor controls, difficulties and Modeling (pages 1–48):
Chapter 2 optimum provide and Synchronous vehicles Torque keep an eye on (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 keep watch over of Synchronous automobiles (pages 221–250):
Chapter 6 Direct keep an eye on of an enduring Magnet Synchronous computer (pages 251–281):
Chapter 7 Synchronous computing device and Inverter Fault Tolerant Predictive Controls (pages 283–304):
Chapter eight Characterization of keep an eye on with no Mechanical Sensor in everlasting Magnet Synchronous Machines (pages 305–346):
Chapter nine Sensorless keep an eye on of everlasting Magnet Synchronous Machines: Deterministic equipment, Convergence and Robustness (pages 347–400):
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Extra info for Control of Synchronous Motors
5. Physical model of the synchronous motor With these hypotheses and notations, the machine is physically completely modeled with the equations presented in this section. 2] These equations are the most fundamental equations. We assume the constant parameters (clean and mutual inductances) to be known, such as M 0 , L f , and those intervening in the inductances matrices. 3] where ( Lss 0 ) represents the constant part and ( Lss 2 (θ )) the variable part. – for a non-salient pole machine, as seen previously, the saliency term disappears.
Torque controls can be based on various models: in particular on the three-phase or two-phase model “ α −β ” (Chapter 2) or on the Park model (Chapter 3). These models lead to the determination of the references of the currents necessary to the determination of the optimal torque (without ripple, with minimal Joule losses) and the structure of the current controls. To take into account the various approaches of the synchronous motor controls, it is thus necessary to know these various models. 8.
71]: the back-EMF term due to the excitation is equal to zero on the d axis. 75]). Only the q axis current intervenes: it is a very important property, because it is a very powerful tool to determine the feed currents (inversion of the model). 74]). 79]; – and here, we assume that the machine is supplied “with three wires”. We thus do not consider the zero-sequence component currents effect. Under these conditions, the extension of the Park transformation is described by the following reasoning.