in conventional direct torque control (dtc), the stator flux is usually kept constant by controlling the x-axis component of the stator voltage in the stator flux reference frame. the torque is then controlled by the y-axis component of stator voltage. in this scenario, the stator current does not exceed its permissible value. however, in the so-called optimal efficiency mode, the induction mot...

The standard model predictive control (MPC) of three-phase motors requires heavy calculation efforts for evaluating all voltage vectors (VV) in addition to the variable switching frequency, large current harmonics, and torque ripples. To deal with these problems, a computational efficient (MPCC) is proposed interior permanent magnet synchronous motor (IPMSM). Initially, avoid protracted enumera...

A new torque control strategy for brushless motors with minimum torque ripple and minimum copper losses while maintaining the phase currents under magnetic (or current) saturation is presented. The optimal control { a nonlinear map from desired torque and position to the motor's phase currents { is the closed form solution to a quadratic programming problem. Experimental results demonstrate vir...

This article proposes a fast-nonlinear modeling method for the direct torque control (DTC) of segmented-rotor switched reluctance motor (SSRM), excluding rotor clamping device. First, torque-balanced is used to measure flux-linkage values at five crucial positions. The profile SSRM represented by fourth-order Fourier series based on measured values. Then, Kriging model employed further describe...

In this model, the induction motor speed control is based on torque drive analysis of output power using Anticipating Power Impulse Technique (APIT). Induction motors are used in various applications; a model constant applications. Vibrations and singularities eliminated with sliding mode conventional terminals. method, reference state determined systematic manner so that maximum per ampere flu...

The influence of contraction type on the human ability to use the torque capacity of skeletal muscle during explosive efforts has not been documented. Fourteen male participants completed explosive voluntary contractions of the knee extensors in four separate conditions: concentric (CON) and eccentric (ECC); and isometric at two knee angles (101°, ISO101 and 155°, ISO155). In each condition, to...

Purpose Small highly saturated interior permanent magnet- synchronous machines (IPMSMs) show a very nonlinear behaviour. Such are mostly controlled with closed-loop cascade control, which is based on d-q two-axis dynamic model constant concentrated parameters to calculate the control parameters. This paper aims present identification of complete current- and rotor position-dependent model, deri...