Torque Ripple Minimisation in Switched Reluctance Motors by Optimisation of Current Wave-Forms and of Teeth Shape with Copper Losses and V.A. Silicon Constraints

Fig.11 illustrates the variations of the measured stator current versus d-axis current for different values of the speed (250, 500 and 800 r/mn) and different values of the load

The SRMs have undeniable advantages in terms of simplicity, robustness, price, low maintenance and proven fault tolerance. The drawbacks of this machine are related to

The control approach consists in designing two controllers separately: the first closes an inner loop with the stator dynamics and is implemented using the input voltages that is,

The method to minimize the torque ripple can be resumed by the following steps and is shown in Fig. a) At first, the sinusoidal currents are supplied into the machine, and the

An equation evaluating the variation of acoustic noise caused by reducing torque ripple in synchronous reluctance machine (SynRM) is proposed.. First, qualitative relation

13, the flux calculated by integrating the induced voltage as in (8) is compared with the flux obtained with the previous numeric method which compensates the current ripple.

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It is very difficult to have simultaneously a good ratio silicium power/mechanical power and a low peak to peak ripple torque (less than 10%) with this kind of supply.. So,