In this paper, a detail design and description of predictive current control scheme are adopted for three-phase grid-connected two-level inverter its application in wind energy conversion systems. Despite advantages, the controller is very sensitive to parameter variations which could eventually affected on system stability. To solve problem, an estimation technique proposed identify value harm...

Sometimes conventional feedback controllers may not perform well online because of the variation in process dynamics due to nonlinear actuators, changes in environmental conditions and variation in the character of the disturbances. To overcome the above problem, this paper deals with the designing of a controller for a second order system with Model Reference Adaptive Control (MRAC) scheme usi...

A mutual Model Refereme Adaptive System, (MRAS) con,tainmg two m,odeBs is proposed to i m plem:ent a! position! sensorless Field Orientat ion Control (FOC) of a n in8duction, mack,in,e. For the rotor speed estim,ation,, one m#odel is used as a reference model and m o t h e r is the ad@stahk m.odel. Pure integration and stator leakage indu.ctance are rem,oved f r o m th,e refere n w model, re.su...

The Expectation-Maximization (EM) algorithm is a very popular optimization tool in model-based clustering problems. However, while the algorithm is convenient to implement and numerically very stable, it only produces solutions that are locally optimal. Thus, EM may not achieve the globally optimal solution to clustering problems, which can have a large number of local optima. This paper introd...

This paper presents an improved direct torque of induction machine based on artificial neural networks. This intelligent technique was used to replace, on the one hand the conventional comparators and the selection table in order to reduce torque ripple, flux and stator current, on the other hand and the classic integral proportional (PI) in order to increase the response time period of the sys...

Abstract: In this paper, an induction machine rotor speed and rotor flux control using a sensorless backstepping control scheme is discussed. The most interesting point of this technique is that it deals with the nonlinearity of a high-order system by using the virtual control variable to make this system simple, and thus the control outputs can be derived step by step through appropriate Lyapu...

By using the direct torque control (DTC), robust response in ac drives can be produced. Ripples of currents, and flux are oberved steady state. space vector modulation (SVM) applied DTC used for a sensorless induction motor (IM) with fuzzy sliding mode speed controller (FSMSC) is studied this paper. This minimize torque, flux, current pulsations To estimate rotor stator model reference adaptive...

This paper attempts to enhance the performance of a green energy induction motor drive. The electronic power converters become indispensable part of the renewable energy systems (RES). The solar photovoltaic (PV) system is efficiently operated with artificial neural network (ANN) based maximum power point tracking (MPPT) algorithm. The inverter topologies for the green drive scheme are analyzed...

This paper proposes grid voltage sensorless model predictive control for a single-phase T-type rectifier with an active power decoupling circuit. The proposed technique is based on reference adaptive system (MRAS) and tested under distorted conditions. study also examines the relationship among ripple energy, dc-link capacitor, circuit capacitor. developed to ensure following objectives; (1) es...