Download Direct Eigen Control for Induction Machines and Synchronous by Jean Claude Alacoque PDF

By Jean Claude Alacoque

Clear presentation of a brand new regulate technique utilized to induction laptop (IM), floor fixed everlasting magnet synchronous motor (SMPM-SM) and inside everlasting magnet synchronous motor (IPM-SM)

Direct Eigen keep an eye on for Induction Machines and Synchronous Motors offers a transparent and consise clarification of a brand new approach in alternating present (AC) motor regulate. in contrast to related books out there, it doesn't current a number of keep an eye on algorithms for every form of AC motor yet explains one strategy designed to manage all AC motor forms: Induction desktop (IM), floor fastened everlasting Magnet Synchronous Motor (SMPM-SM) (i.e. Brushless) and inside everlasting Magnet Synchronous Motor (IPM-SM). this positively new keep watch over procedure can be utilized not just for AC motor keep watch over but additionally to manage enter filter out present and voltage of an inverter feeding an AC motor.

  • Accessible and transparent, describes a brand new speedy form of motor keep watch over utilized to induction laptop (IM), floor fastened everlasting magnet synchronous motor (SM-PMSM) and inside everlasting magnet synchronous motor (I-PMSM) with quite a few examples
  • Summarizes a mode that supersedes the 2 recognized direct keep an eye on recommendations – Direct Self keep an eye on and Direct Torque keep an eye on – for use for AC motor regulate and to regulate enter filter out present and voltage of an inverter feeding an AC motor
  • Presents complete simulations which are effortless for the reader to breed on a working laptop or computer. A control application is hosted on a spouse website

This booklet is straight-forward with transparent mathematical description. It provides simulations in a fashion that's effortless to appreciate and to breed on a working laptop or computer, while omitting information of sensible implementation of keep watch over, to ensure that the most concept to take concentration. The publication continues to be concise through leaving out description of sensorless controls for all motor forms. The sections on “Control Process”, “Real Time Implementation” and “Kalman filter out Observer and Prediction” within the introductory chapters clarify find out how to essentially enforce, in genuine time, the discretized regulate with all 3 forms of AC automobiles. so as, this booklet describes induction laptop, SMPM-SM, IPM-SM, and, program to LC clear out obstacles. The appendixes current: PWM vector calculations; move matrix calculation; move matrix inversion; Eigen nation area vector calculation; and, transition and command matrix calculation.

Essential studying for Researchers within the box of force keep an eye on; graduate and post-graduate scholars learning electrical machines; electrical engineers within the box of railways, electrical automobiles, aircraft floor regulate, army purposes. The strategy can be helpful for Engineers within the box of computer instruments, robots and rolling mills.

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Additional info for Direct Eigen Control for Induction Machines and Synchronous Motors

Example text

The magnitude of the voltage vector V f , represents the maximum voltage of the fundamental component; it measures at its maximum 1 / 2 times the DC voltage of the Uc capacitor, if we do not take account of voltage drops or inverter dead-times. Using various sequences of the six inverter states, we can thus create various vectorial modulations which generate, in their turn, an average voltage vector V over one period with a direction (vector argument) and a magnitude adjustable by the choice of the voltage vector sequence, their impressing order and duration.

The vector composition of harmonic voltage vectors at a given time, has in the general case as resultant vector, a vector with variable amplitude, turning with non-constant angular velocity. To be able to define the torque produced by the voltage fundamental component and consequently by the current fundamental component and then to calculate the voltage vector to be used to obtain it, it is then convenient to introduce an orthonormal frame turning at the angular velocity of voltage, current and flux fundamental components, therefore with instantaneous angular frequency ωs.

The two last relations show that the input variable Vs does not act directly on the rotor flux. The evolution of the rotor flux is dependent on both the stator current and the rotor flux state. 13 Induction Machine The first two relations show that the evolution of the stator current depends on: ● ● ● the control vector the current state the flux state. These relations allow us to consider a close coupling between these two physical variables, which will have to be decoupled to be able to control them independently.

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