Fault Tolerant Power Converter Topologies for Sensor-less Speed Control of PMSM Drives

Current Sensor Fault Reconstruction for PMSM Drives

This paper deals with a current sensor fault reconstruction algorithm for the torque closed-loop drive system of an interior PMSM. First, sensor faults are equated to actuator ones by a new introduced state variable. Then, in αβ coordinates, based on the motor model with active flux linkage, a current observer is constructed with a specific sliding mode equivalent control methodology to elimina...

Speed Control of PMSM Drives by Using Neural Network Controller

This paper presents modeling, controller design and simulation of a PMSM drive. The hysteresis current controller is used for inner loop current control and PI controller for outer loop speed control. In this paper the design of a Neural Network based approach is used to enhance efficiency in a vector control of Permanent Magnet synchronous Motors (PMSM). The conventional Proportional-Integral ...

Experimental fault-tolerant control of a PMSM drive

The paper describes a study and an experimental verification of remedial strategies against failures occurring in the inverter power devices of a permanent-magnet synchronous motor drive. The basic idea of this design consists in incorporating a fourth inverter pole, with the same topology and capabilities of the other conventional three poles. This minimal redundant hardware, appropriately con...

Design and Simulation of Double Loop Control for Power Converter Fed Variable Speed DC Drive

Robust Takagi-Sugeno sensor fault tolerant control strategy for nonlinear system