The paper describes an investigation of fault tolerant control strategies for permanent magnet synchronous motor (PMSM) driven by a fault-tolerant inverter. The inverter is a topology-modified inverter with fault-tolerant capability, which can be configured as the standard 3-phase 6-switch inverter and reconfigured as 3-phase 4-switch or 2-phase 4switch inverter under the fault condition. By an...

Permanent magnet synchronous machines are known as a good candidate for hybrid electric vehicles due to their unique merits. However they have two major drawbacks i.e. high cost and small speed range. In this paper an optimal design of a permanent magnet machine is presented. A reduction of permanent magnet material for a constant torque and an extension in speed and torque ranges are chosen as...

In this paper, a novel method based on a combination of Extended Kalman Filter (EKF) with Self-adaptive Differential Evolution (SaDE) algorithm to estimate rotor position, speed and machine states for a Permanent Magnet Synchronous Motor (PMSM) is proposed. In the proposed method, as a first step SaDE algorithm is used to tune the noise covariance matrices of state noise and measurement noise i...

This paper deals with the control law design with an observer for models in the Takagi–Sugeno's (TS) form in the general case where the nonlinearities and the variables involved are not measurable. The proposed observer design method is based on the use of the second method of Lyapunov and the pole placement method. Based on this procedure an algorithm is proposed for stabilisation of permanent...

This paper discuss about PV cell energy based space-vector pulse width modulation (SVPWM) control methods applied for an H-bridge inverter feeding a 3-phase permanent magnet synchronous machine (PMSM) in electric-vehicle (EV) applications. EVs require a high degree of availability continuity of service. Advantages using svpwm minimization of switching losses, balancing of switching rate between...

Abstract—The paper deals with a mathematical modelling of the three-phase Permanent Magnet Synchronous Motors (PMSM) and their model-based control. These motors are used in drives of robots and machine tools. The construction of their mathematical model is discussed here with respect to a model-based control design. The model is composed via mathematical-physical analysis. The analysis is outli...

A New Adaptive Self-Tuning Fourier Coefficients Algorithm for Periodic Torque Ripple Minimization in Permanent Magnet Synchronous Motors (PMSM) Torque ripple occurs in Permanent Magnet Synchronous Motors (PMSMs) due to the non-sinusoidal flux density distribution around the air-gap and variable magnetic reluctance of the air-gap due to the stator slots distribution. These torque ripples change ...

Permanent Magnet Synchronous Machine (PMSMs) are considered as the promising electromagnetic structure, especially for In-Wheel motor electric and hybrid propulsion applications. The design for a direct-drive wheel motor PMSM require a 3D Finite Element Analysis (FEA) based investigation of the output torque especially when the end winding is considered and in the case of skewed machine, this p...

Permanent Magnet Synchronous motor (PMSM) has received widespread acceptance in recent years. In this paper, a new rotor and stator Magnetic Fields Direct-Orthogonalized Vector Control (MFDOVC) scheme is proposed for PMSM servo system. This method simplified the complex calculation of traditional vector control, a part of the system resource is economized. At the same time, through the simulati...

A robust two-degree-of-freedom control scheme is proposed for permanent magnet synchronous motor PMSM using extended state observer ESO . The robustness is achieved based on the ESO. Parameter perturbation and external disturbances in PMSM drive system are treated as disturbance variable, and then the motion model of PMSM is transformed into an extended state model by introducing this disturban...