Fault-Tolerant Control of Permanent Magnet Synchronous Motor Drive under Open-Phase Fault

Abstract

This paper presents an integrated solution for a fault-tolerant three-phase permanent magnet synchronous motor (PMSM) field-oriented control drive subjected to an openphase fault (OPF) integrated with effective fault-tolerant detection methodology. The fault detection methodology is based on model predictive current control (MPCC), which is easy to apply, detect OPF in a range of microseconds, and robust under-speed or load transient. On the other hand, the fault-tolerant compensation is based on a neutral point connection together with stator current regulation to maintain the magneto-motive force (MMF)unchanged under open-phase failure. Controlling the motor phase currents in the post-fault condition ensures a rotating magnetic field similar to that produced during healthy conditions thus, reducing the saturation impact and ensuring the reliability of the control operation. The proposed integrated fault-tolerant drive is validated using MATLAB simulation that ensure the effectiveness of the proposed solution in steady state and during transients under different loading and rotor speed condition.

Fault-Tolerant Control of a Three-Phase Permanent Magnet Synchronous Motor for Lightweight UAV Propellers via Central Point Drive

“…Many research activities have been developed in recent years on FDI of PMSM electrical faults. Kontarček [15] and Saleh [16] proposed predictive methods, relying on the stator current prediction and estimation error. Though the methods assure extremely small latencies, their robustness depends on the availability of an extensive database of electric parameters as functions of environment and aging.…”