Control of Non-conventional Synchronous Motors by Jean-Paul Louis

By Jean-Paul Louis

Classical synchronous cars are the simplest machine to force commercial construction structures and robots with precision and rapidity. in spite of the fact that, quite a few purposes require effective controls in non-conventional situations.
Firstly, this can be the case with synchronous cars provided via thyristor line-commutated inverters, or with synchronous automobiles with faults on one or numerous phases.
Secondly, many force structures use non-conventional automobiles akin to polyphase (more than 3 stages) synchronous vehicles, synchronous vehicles with double excitation, everlasting magnet linear synchronous automobiles, synchronous and switched reluctance automobiles, stepping cars and piezoelectric motors.
This e-book provides effective controls to enhance using those non-conventional motors.


1. Self-controlled Synchronous Motor: rules of functionality and Simplified keep an eye on version, Francis Labrique and Francois Baudart.
2. Self-controlled Synchronous Motor: Dynamic version together with the habit of Damper Windings and Commutation Overlap, Ernest Matagne.
3. Synchronous Machines in Degraded Mode, Damien Flieller, Ngac Ky Nguyen, Herve Schwab and man Sturtzer.
4. keep an eye on of the Double-star Synchronous computing device provided by way of PWM Inverters, Mohamed Fouad Benkhoris.
5. Vectorial Modeling and keep watch over of Multiphase Machines with Non-salient Poles provided via an Inverter, Xavier Kestelyn and Eric Semail.
6. Hybrid Excitation Synchronous Machines, Nicolas Patin and Lionel Vido.
7. complex keep watch over of the Linear Synchronous Motor, Ghislain Remy and Pierre-Jean Barre.
8. Variable Reluctance Machines: Modeling and keep an eye on, Mickael Hilairet, Thierry Lubin and Abdelmounaim Tounzi.
9. keep watch over of the Stepping Motor, Bruno Robert and Moez Feki .
10. keep watch over of Piezoelectric Actuators, Frederic Giraud and Betty Lemaire-Semail.

Chapter 1 Self?controlled Synchronous Motor (pages 1–31):
Chapter 2 Self?controlled Synchronous Motor (pages 33–66):
Chapter three Synchronous Machines in Degraded Mode (pages 67–124):
Chapter four keep watch over of the Double?star Synchronous computing device provided by way of PWM Inverters (pages 125–159):
Chapter five Vectorial Modeling and keep watch over of Multiphase Machines with Non?salient Poles provided via an Inverter (pages 161–206):
Chapter 6 Hybrid Excitation Synchronous Machines (pages 207–239):
Chapter 7 complicated keep an eye on of the Linear Synchronous Motor (pages 241–285):
Chapter eight Variable Reluctance Machines (pages 287–327):
Chapter nine keep watch over of the Stepping Motor (pages 329–373):
Chapter 10 keep watch over of Piezoelectric Actuators (pages 375–409):

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Vectorial diagram linking the fundamental components of voltages and currents We can then link the firing instants of the thyristors to the electrical position of the rotor. ] . 14 Control of Non-conventional Synchronous Motors The positions of the rotor corresponding to the firing of the other thyristors can easily be inferred from that of Ta1 , considering that: − the firing of Tb1 and Tc1 are respectively shifted by 2π / 3 and 4π / 3 with respect to those of Ta1 ; − the firing of Ta 2 is shifted by π with respect to those of Ta1 ; − the firing of Tb 2 and Tc2 are respectively shifted by 2π / 3 and 4π / 3 with respect to those of Ta 2 .

9, but defined with respect to the magnetic axis of the field winding. 9, that was defined with respect to the magnetic axis of phase a. 1] Dynamic Model of a Self-controlled Synchronous Motor 35 where θem is the electric position of the rotor. 10, neglecting overlap angle μ enables us to well-define the armature circuit at each moment: it consists of the anti-series connection of the two stator windings in which current flows. This circuit is completely defined for each value of rotor electric position θem, by position ρS of the fictitious brushes.

10. This will take into account the transient regime due to the damper windings, without making the hypothesis that the overlap angle (the electric angle during which the armature current is transferred from one phase to the other during the commutation) is zero. As in Chapter 1, we will assume that the synchronous machine has a cylindrical rotor, the couplings between the windings are sinusoidal, the field winding is supplied with a current source and that there is no magnetic saturation. Since the overlap angle is not assumed to be zero, the model obtained will have at least one more degree of freedom, and thus need an additional equation to set this.

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