A current-state transformation turns the faulty PMSM model into an exact linear time-varying system, so an observer or GPEBO can directly estimate the inter-turn short-circuit fault severity.
On line interturn short-circuit fault diagnosis and nonlinear control of PMSM
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Interturn Fault Detection in IPMSMs: Two Adaptive Observer-based Solutions
A current-state transformation turns the faulty PMSM model into an exact linear time-varying system, so an observer or GPEBO can directly estimate the inter-turn short-circuit fault severity.