Synchronous Motors F. Aghili and M. Buehler J. M. Hollerbach Dept. Mechanical Engineering Dept. Computer Science McGill University University of Utah Montr eal, QC H3A 2A7, Canada Salt Lake City, UT 84112, USA ffarhad,[email protected] [email protected] Abstract This paper presents a new model for torque generation of synchronous motors and their control based on Fourier coe cients. Since mu...

This paper focuses on the design of power management strategy for four-wheel independent drive electric vehicles (4WID EVs). Since the efficiency of the motor and inverter is different under different driving conditions, genetic algorithm based optimal energy management strategy is proposed to maximize the efficiency of motor drive systems. Not only the efficiency of motor, but also the efficie...

This paper presents a direct torque control strategy for double star synchronous machine fed by two three-level inverters. The analysis of the torque and the stator flux linkage reference frame shows that the concept of direct torque control can be extended easily to double star synchronous machine. The proposed approach consists to replace the switching tables by one artificial neural networks...

To solve the large torque ripple and current harmonics, low DC bus voltage problems, a new control strategy is proposed for AC induction motor by using space vector pulse width modulation, so that the static and dynamic performance are improved. The system simulation experiment mode was established based on SVPWM to verify the effectiveness of the system control mode. It is showed that it can r...

Direct Torque Control with Multilevel Inverter (DTC-MLI) has emerged recently in high dynamics AC drives fields for induction machines or permanent magnet machines application. In this paper, a review on a variety of techniques and concepts of direct torque control of multilevel inverter-fed induction machines is presented. The techniques and concept involved are classified as follows: Look-up ...

The direct torque control-space vector modulation (DTC-SVM) is well-known for achieving excellent dynamic overmodulation. However, the method uses complicated predictive stator flux vector control and requires high precision stator flux vector to define overmodulation mode. This paper proposes a straightforward dynamic overmodulation method and constant switching frequency controller without SV...

– Direct Torque Control using Multilevel Inverter (DTC-MLI) strategy has attracted a great deal of interest in recent years, in the field of high power induction machines or permanent magnet machines drives applications for high dynamic response. This proposal combines the advantages of the multilevel inverter with direct torque controlled based schemes. Numerous efforts have been accomplished ...

Axial Flux Ironless permanent magnetic synchronous motor (AFIPMSM) is a new permanent magnetic motor. It has many advantages, such as high torque-to-weight ratio, good efficiency, no cogging torque, and the sinusoidal back EMF. It gradually becomes the good choice in drive system. However, the small armature winding inductance causes the current is not continued with the PWM control based on VS...

The problem of angular velocity stabilization for the spinning spacecraft is considered. The spacecraft is assumed to be supplied a passive inertial energy dissipater in the form of a spring-mass-dashpot and small resistojets. The satellite is subjected to a combination of an excitational time varying torque and a control torque. The energy-based speed-gradient (SG) control law is proposed and ...

This paper gives a brief description of feedback control systems engaged in DLR’s recently developed multisensory 4finger robot hand. The work is concentrated on constructing the dynamic model and the control strategy for one joint of the fingers. One goal is to make the hand follow a datagiove for fine manipulation tasks. Our proposed strategy for this task is parallel torque/position controi;...