Variable frequency speed regulation technology is widely used in energy-saving control systems for fan and pump loads. Replacing mechanical adjustment devices such as valves with variable can effectively reduce energy consumption. The performance of induction motor drive system based on the indirect rotor flux-oriented (I-RFOC) heavily depends accuracy time constant. Traditional constant measur...

the incidence of pre-lingual hearing loss (hl) is about 1 in 1000 neonates. more than 60% of cases are inherited. non-syndromic hl (nshl) is extremely heterogeneous: more than 130 loci have been identified so far. the most common form of nshl is the autosomal recessive form (arnshl). in this study, a cohort of 36 big arnshl pedigrees with 4 or more patients from 7 provinces of iran was investig...

In order to solve the problem that three-phase current of interior permanent magnet synchronous motor (IPMSM) contains 11th and 13th harmonics, a multiple rotating frame transformation (MSRFT)-based harmonic suppression method is established. Firstly, influencing factors harmonics in IPMSM vector control are analyzed, influence mechanism inverter’s dead-time effect flux linkage on described. Se...

Anti-slip control, as a fundamental technique of vehicle stability prevents loss control vehicles, especially under extreme driving conditions. However, current methods fail to suppress slippage when steering. Therefore, new anti-slip approach for four-wheel independent-drive electric vehicles (EVs) based on the energy method is proposed. This makes full use distribution motor between body and ...

This paper presents a rotor position estimation technique for a 6/4 switched reluctance machine based on Adaptive Neuro fuzzy Inference System (ANFIS). This technique is applied for modelling the nonlinear rotor position of SRM using the magnetization characteristics of the machine. ANFIS has a strong nonlinear approximation ability which could be used for nonlinear modelling and its real time ...

This paper deals with magnetic modeling of a bearingless synchronous reluctance motor. The motor under consideration includes two separate sets of three-phase windings, one for torque production and the other one for radialforce production. This paper demonstrates by means of finite-element analysis, that it is unrealistic to assume the two three-phase windings to be decoupled from one another....