The design of a position observer for the interior permanent magnet synchronous motor is challenging problem that, in spite many research efforts, remained open long time. In this paper we present first globally exponentially convergent solution to it, assuming that saliency not too large. As expected all tasks, persistency excitation condition imposed. Conditions on operation motor, under whic...

Abstract Permanent magnet synchronous motors (PMSMs) have many advantages attributed to the structure of permanent magnet, which connects influences each type fault. However, diagnostic methods are not capable monitoring multitype faults with one index or method, due closed-loop control non-stationarity. There a few based on convolutional neural networks (CNNs) and vibration analysis; however, ...

This paper presents design, analysis and comparison of the different rotor type permanent magnet machines. The presented machines are designed as having same geometrical dimensions and same materials for comparison. The main machine parameters of interior and exterior rotor type machines including eddy current effect, torque-speed characteristics and magnetic analysis are investigated using MAX...

This paper focuses on three commonly used sensorless methods based on high-frequency signal injection; namely, the rotating sinusoidal injection in the stationary reference frame, the pulsating sinusoidal injection in the estimated synchronous reference frame, and the pulsating square wave injection in the estimated synchronous reference frame. Although these methods have found applications in ...

In this paper, an improved immune algorithm (IIA) was proposed for the torque ripple reduction optimal design of interior permanent magnet synchronous motor (IPMSM) a fuel cell electric vehicle (FCEV) traction motor. When designing machines, both global and local solutions designs are required as result should be compared in various aspects, including torque, ripple, cogging torque. To lessen c...

In this study, a novel design for tilted spoke-type hybrid permanent magnet synchronous motor (TH-PMSM) that uses two types of (PM) materials is proposed to reduce the consumption rare-earth PM materials. The key feature securing space by tilting magnet, so more PMs can be used in limited rotor space. addition, based on centre axis rotor, magnets are positioned deeper inside than ferrite maximi...

This paper presents a novel torque equation to predict the harmonic characteristic of an interior permanent-magnet synchronous motor (IPMSM). The procedure for establishing proposed is as follows. First, we classify origins torque, phase, and slot harmonics. harmonics are then analyzed study relationship between generated in N S poles magnet. Second, establish consisting two terms phase In part...

This paper describes an efficiency optimization control method for high performance interior permanent magnet synchronous motor drives with online estimation of motor parameters. The control system is based on an inputoutput feedback linearization method which provides high performance control and simultaneously ensures the minimization of the motor losses. The controllable electrical loss can ...

This paper proposes a loss minimization control method based on improved gradient descent algorithm (GDA) for interior permanent magnet synchronous machine (IPMSM). Since the power of PMSM is derived from measured phase voltage and current, this independent iron model containing motor parameters. Meanwhile, it can guarantee stability system when entering searching period. Both maximum torque pe...

One maintenance task that still exist with conventional motors, are bearing lubrication and renewal. Bearingless motors are replaced with conventional motor that uses a magnetic levitation force to suspend a rotor without any mechanical contact. In bearingless motors, additional windings are wound together with motor windings in stator slots. In this paper, a bearingless permanent magnet-type s...