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

By Fouad Giri

The complexity of AC motor keep an eye on lies within the multivariable and nonlinear nature of AC computer dynamics. fresh developments up to speed concept now give the opportunity to house long-standing difficulties in AC automobiles regulate. this article expertly attracts on those advancements to use a variety of model-based keep watch over designmethods to numerous AC cars. Contributions from over thirty most sensible researchers clarify how sleek keep an eye on layout tools can be utilized to accomplish tight pace legislation, optimum vigorous potency, and operation reliability and protection, by way of contemplating on-line country variable estimation within the absence of mechanical sensors, energy issue correction, computing device flux optimization, fault detection and isolation, and fault tolerant keep an eye on. Describing the full regulate strategy, either controller and observer designs are established utilizing complicated nonlinear equipment, balance and function are analysed utilizing strong suggestions, together with implementation concerns utilizing electronic computing capacity. different key beneficial properties: - Covers the most different types of AC automobiles together with triphase, multiphase, and doubly fed induction automobiles, wound rotor, everlasting magnet, and inside PM synchronous cars - Illustrates the usefulness of the complex regulate tools through business functions together with electrical autos, excessive velocity trains, metal generators, and extra - comprises particular concentrate on sensorless nonlinear observers, adaptive and strong nonlinear controllers, output-feedback controllers, fault detection and isolation algorithms, and fault tolerant controllers

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Chapter 14 is on FDI in induction motors. Both MB and data-driven (DD) methods are developed. The MB approach involves SM observers based on residual evaluation and thresholding. DD methods, also referred to as “motor current signature analysis” (MCSA), are designed using processing techniques based on FFT, Hilbert transforms, and more advanced time/frequency combined analysis techniques. 4 Control Design Techniques for Synchronous Motors The fourth part of the book includes six chapters on synchronous motor control.

This chapter is about control-oriented mathematical modelling of synchronous motors. In the literature, three main modelling approaches have been developed for electrical machines in general. The first one is based on the finite element method (FEM) (Minnich et al. 1981; AC Electric Motors Control: Advanced Design Techniques and Applications, First Edition. Edited by Fouad Giri. © 2013 John Wiley & Sons, Ltd. Published 2013 by John Wiley & Sons, Ltd. 42 AC Electric Motors Control Arkkio et al. 1990; Bangura and Arkadan 1999).

Again, all currents, voltages and powers are measured at the motor input. In the blocked rotor operation, the slip s is equal to 1. 9. The measurements to be performed in this test are the following: • • • • The three-phase active power Pbl . The three-phase reactive power Q bl . The line voltage Vbl . The line current Ibl . R and N can be calculated from the following equations: Pbl R = 2 − Rs , 3Ibl Vbl Ibl N= 2 −(R+Rs )2 ωs . 95) As N = σ L r ( ML srs )2 and R = Rr ( ML srs )2 , the knowledge of R and N allows to calculate the rotor time constant and the parameter σ , using the expressions Tr = Ls + N , R σ = N .

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