Observability Analysis of Sensorless Synchronous Machine Drives

Mohamad Koteich 1, 2, * Abdelmalek Maloum 2 Gilles Duc 1 Guillaume Sandou 3, 1
* Corresponding author
1 L2S - Laboratoire des signaux et systèmes
2 Technocentre Renault [Guyancourt]
3 DISCO - Dynamical Interconnected Systems in COmplex Environments
L2S - Laboratoire des signaux et systèmes, Inria Saclay - Ile de France
Abstract : This paper studies the local observability of synchronous machines using a unified approach. Recently, motion sensorless control of electrical drives has gained high interest. The main challenge for such a technology is the poor performance in some operation conditions. One interesting theory that helps understanding the origin of this problem is the observability analysis of nonlinear systems. In this paper, the observability of the wound-rotor synchronous machine is studied. The results are extended to other synchronous machines, adopting a unified analysis. Furthermore, a high-frequency injection-based technique is proposed to enhance the sensorless operation of the wound-rotor synchronous machine at standstill.
Keywords : Observability analysis Observer based control Extended Kalman Filter PMSM Synchronous Machine Wound Rotor Synchonous Machine Reluctance machine
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Mohamad Koteich, Abdelmalek Maloum, Gilles Duc, Guillaume Sandou. Observability Analysis of Sensorless Synchronous Machine Drives. 14th annual European Control Conference - ECC 2015, Jul 2015, Linz, Austria. pp.8, ⟨10.1109/ECC.2015.7331085⟩. ⟨hal-01151701⟩

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