Minimization of torque ripple of direct-torque controlled induction machines by improved discrete space vector modulation

“…dvanced industrial variable speed drive systems are complex combination of an electrical machine, a power electronic device and a digital microprocessor system, executing a control algorithm [1][2][3][4][5][6][7][8][9]. Such devices can be used in applications where high precision servo performance is desired.…”

Section: Introductionmentioning

confidence: 99%

Induction motor load generator system using direct torque control method

Mazhari

Vahedi

Masoum

2007

2007 Australasian Universities Power Engineering Conference

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“…Chun [5] presented a simple method to get the required space voltage vector by the ration of torque error and stator flux error and improved the steady state performance of the motor. Wei [8] improved discrete space vector modulation strategy to minimize the torque ripple of direct-torque controlled induction machines. Fuzzy control does not need the accurate mathematic model of the process to be controlled, and uses the experience of people's knowledge to form its control rule base.…”

Section: Introductionmentioning

confidence: 99%

A scheme of fuzzy direct torque control for induction machine

Chen

Fang

2005

2005 International Conference on Machine Learning and Cybernetics

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In this paper, a novel fuzzy logic direct torque control (FLDTC) scheme combining with space voltage modulation (SVM) technique is presented. Using fuzzy logic technique, the reference space voltage vector can be obtained dynamically in terms of torque error, stator flux error and the angle of stator flux. Compared with conventional direct torque control (DTC), this scheme is easily implemented for induction machine, the ripples of both torque and flux are reduced remarkable, and switching frequency is maintained constant. Simulation results verify the validity of the proposed method.

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“…The high performance electric speed drives needs decoupled torque and flux control [5]. This method is generally afforded through Field oriented control (FOC) or vector control method [6]. The excitation current and load current can be controlled individually by using FOC method.…”

Section: Introductionmentioning

confidence: 99%

Direct Torque Control of Induction Motor with Cascaded Multilevel inverter

B¹,

Y.V.²,

M³

2015

International Journal of Innovative Research in Electrical, Ele

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Abstract:In this Paper, an Intelligent Direct Torque Control (DTC) method is proposed for controlling induction motor using Multilevel inverter with space Vector Modulation (SVM).A stage of Artificial Neural Network (ANN) is utilised for predicting the target parameters with the corresponding input parameters change in motor torque and flux. The change in motor torque and flux parameters are extracted from the behaviour of the system with PI controller. The back propagation learning method is used to learn the ANN. By using the ANN output and PI controller outputs, PWM control signal are generated from the SVM technique and control the multilevel inverter. Then the proposed intelligent control technique is implemented in the MATLAB/Simulink and the effectiveness are analysed with five level cascaded inverter and comparing the results with PI cont roller and the proposed case. The comparison results shows that the proposed method have good speed control response.

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Minimization of torque ripple of direct-torque controlled induction machines by improved discrete space vector modulation

Cited by 41 publications

References 22 publications

Induction motor load generator system using direct torque control method

Induction motor load generator system using direct torque control method

A scheme of fuzzy direct torque control for induction machine

Direct Torque Control of Induction Motor with Cascaded Multilevel inverter

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