Download AC Electric Motors Control Advanced Design Techniques and by Fouad Giri PDF

By Fouad Giri

The complexity of AC motor regulate lies within the multivariable and nonlinear nature of AC computing device dynamics. fresh developments on top of things thought now give the opportunity to accommodate long-standing difficulties in AC automobiles regulate. this article expertly attracts on those advancements to use a variety of model-based regulate designmethods to various AC cars. Contributions from over thirty best researchers clarify how sleek keep watch over layout tools can be utilized to accomplish tight velocity law, optimum lively potency, and operation reliability and safeguard, by way of contemplating on-line kingdom variable estimation within the absence of mechanical sensors, strength issue correction, computer flux optimization, fault detection and isolation, and fault tolerant regulate. Describing the entire keep an eye on procedure, either controller and observer designs are tested utilizing complicated nonlinear equipment, balance and function are analysed utilizing robust ideas, together with implementation concerns utilizing electronic computing potential. different key positive factors: - Covers the most kinds of AC automobiles together with triphase, multiphase, and doubly fed induction cars, wound rotor, everlasting magnet, and inside PM synchronous vehicles - Illustrates the usefulness of the complicated regulate equipment through commercial functions together with electrical automobiles, excessive pace trains, metal generators, and extra - comprises specified specialise in sensorless nonlinear observers, adaptive and powerful nonlinear controllers, output-feedback controllers, fault detection and isolation algorithms, and fault tolerant controllers

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6) That is, the triphase quantities [vsabc ], [i sabc ], [φsabc ], [vrabc ], [i rabc ], and [φrabc ] denote the stator and the rotor voltages, currents, and fluxes. The subscripts s and r refer to the stator and the rotor, respectively. Similarly, the indices a, b, and c refer to the three phases. 8) where Rs and Rr are the stator and the rotor resistances, los and lor are the self-inductances, Mos is the mutual inductance between two stator phases, and Mor is the mutual inductance between two rotor phases.

A high-gain observer is used to estimate the rotor speed and acceleration from its position measurement. The same framework is extended to a case where only stator current measurements are available. In this case, a high-gain observer is used to estimate the speed from the field-oriented currents and voltages. Chapter 9 is on adaptive output-feedback control of induction motors. It addresses the problem of adaptively controlling induction motors in order to achieve rotor speed and flux magnitude tracking, all without resorting to mechanical sensors.

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