3. Non-linearity of control structures

3.1 Intrinsic non-linearity of the machine: magnetic saturation

The structural equations derived from modeling as defined in the first three paragraphs of article highlight a non-linearity intrinsic to the DC machine. With separate excitation, magnetic saturation (see [D 3 610] , figure1) results in a non-linear function F ^–1 , as shown by the flux derivative equation : $\frac{d φ}{d t} = - \frac{R_{f}}{n_{f}} \cdot F^{- 1} (φ) + \frac{1}{n_{f}} v_{f}$

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References

(1) - LEM - Capteurs isolés de courant et de tension. Propriétés, applications, calculs - , documentation technique LEM, 2e édition, 32 p. (1999).
(2) - ALLEGRO - « Hall-Effect IC applications guide – Guide d'application des circuits intégrés à effet Hall » -...

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