In recent years, the areas of industrial application of AC drives, especially Induction machine based on DTC technique has gradually increased due to its advantages over the other techniques of control. In conventional direct torque control, the selection of flux linkage & electromagnetic torque errors are made within the respective flux and torque hysteresis bands in order to obtain fast torqu...

objectives: hearing loss (hl) is the most common sensory disorder, and affects 1 in 1000 newborns. about 50% of hl is due to genetics and 70% of them are non-syndromic with a recessive pattern of inheritance. up to now, more than 50 genes have been detected which are responsible for autosomal recessive non-syndromic hearing loss, (arnshl). in  iran, hl is one of the most common disabilities due...

In order to study the operation process of motor and improve operating performance motor, this paper performs finite element simulation three-phase asynchronous optimizes initial design by using Taguchi method. Firstly, a model is established with voltage, current, torque, flux linkage, distribution lines magnetic induction intensity under rated conditions vertified Finite Element Analysis (FEA...

Aiming at the problem that change of motor parameters in actual operation will significantly reduce control accuracy motor, this paper proposes a sensorless method permanent magnet synchronous based on an adaptive back-EMF observer. Firstly, vector algorithm, mathematical model coordinate axis transformation is established, online identification flux linkage, and back EMF observer constructed. ...

This paper presents a methodology for the analysis of the linkage among the processes in an organization. The methodology has three main steps: model construction; connectivity analysis; and structure analysis. The model construction step generates a linkage matrix which is used in the following steps. The connectivity analysis is based on linkage consistency and interprocess coupling metrics, ...