نتایج جستجو برای: space vector modulation technique svm
تعداد نتایج: 1365205 فیلتر نتایج به سال:
K Sravanthi M Ranjith S Srinivasulu Electrical Dept, Asst Prof /Electrical Dept, Asst Prof/Electrical Dept, VNR VJIET VNR VJIET GITAM University, Hyderabad, India Hyderabad, India Hyderabad, India Abstract—This paper proposes the implementation of a different SPACE VECTOR PWM technique applied to the indirect vector controlled induction motor (IM) drive involves decoupling of the stator current...
In this paper, the space-vector pulsewidth modulation (SVPWM) technique for two-phase inverters is proposed. The proposed SVPWM technique is applicable to the two-phase induction motor drives. The two-phase inverters using the proposed SVPWM technique can generate only four space voltage vectors, but cannot generate zero vectors. A reference voltage vector located in the square locus is realize...
Facilitating instantaneous torque and smooth speed of Electric vehicle (EV) largely relies on modulation scheme employed type controller used for motor drive system. The DTC-SVM (Space Vector Modulation) approach with two PI controllers has an excellent steady state transient response. However, there is still a need to reduce stator current ripples in induction application vehicle. This paper p...
This paper considers direct torque control strategies in induction motor drive to minimize torque ripples. Spacevector modulation and modified space vector control concept is implemented to design the controller. Basic DTC method suffers from torque ripples problem and switching frequency variation.[1] Torque ripples are minimized using space vector modulation technique but execution time in th...
Even the support vector machine (SVM) has been proposed to provide a good generalization performance, the classification result of the practically implemented SVM is often far from the theoretically expected level because their implementations are based on the approximated algorithms due to the high complexity of time and space. To improve the limited classification performance of the real SVM,...
This paper presents a method to control both the dc boost and the ac output voltage of Z-source inverter using neural network controllers. The capacitor voltage of Z-source network has been controlled linearly in order to improve the transient response of the dc boost control of the Z-source inverter. The peak value of the line to line ac output voltage is used to control and keep the ac output...
Direct torque control (DTC) is a control technique in AC drive systems to obtain high performance torque control. The classical DTC drive contains a pair of hysteresis comparators and suffers from variable switching frequency and high torque ripple. These problems can be solved by using space vector depending on the reference torque and flux. In this paper the space vector modulation technique ...
This paper describes a combination of direct torque control (DTC) and space vector modulation (SVM) for an adjustable speed sensor less induction motor (IM) drive. The motor drive is supplied by a two-level SVPWM inverter. Using the IM model in the stator – axes reference frame with stator current and flux vectors components as state variables. In this paper, a conventional PI controller is des...
A refined space vector modulation scheme for multilevel inverters, using only the instantaneous sampled reference signals is presented in this paper. The proposed space vector pulse width modulation technique does not require the sector information and look-up tables to select the appropriate switching vectors. The inverter leg switching times are directly obtained from the instantaneous sample...
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