Hybrid Artificial Intelligence based Fault Diagnosis of SVPWM Voltage Source Inverters for Induction Motor

<p>Generally induction motor drives posses higher harmonic contents in line voltage and current due to high switching frequency used in inverters. Conventional induction motor drives employ two level voltage source inverters which has THD in level of 50%. This paper presents a switched z-source multilevel inverter which has voltage boosting capability and has lesser THD level in comparison with conventional two level voltage source inverters. This drive is fed from a photo voltaic source because of its voltage boosting capability. A single phase five level switched z-source inverter is initially designed and considered as single cell and three such cells are created for powering three phase induction motor. The proposed three cell PV source switched z-source multilevel inverter for three phase induction motor is simulated in MATLAB/Simulink software to verify merits of proposed IM drive</p>

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Direct torque control of doubly fed induction motor using three-level NPC inverter

Protection and Control of Modern Power Systems ◽

10.1186/s41601-019-0131-7 ◽

2019 ◽

Vol 4 (1) ◽

Cited By ~ 5

Author(s):

Najib El Ouanjli ◽

Aziz Derouich ◽

Abdelaziz El Ghzizal ◽

Mohammed Taoussi ◽

Youness El Mourabit ◽

...

Keyword(s):

Induction Motor ◽

Control Method ◽

System Modeling ◽

Direct Torque Control ◽

Harmonic Distortion ◽

Torque Control ◽

Voltage Source ◽

Modeling And Control ◽

Voltage Source Inverters ◽

Doubly Fed

Abstract This article presents the direct torque control (DTC) strategy for the doubly fed induction motor (DFIM) connected to two three-level voltage source inverters (3LVSIs) with neutral point clamped (NPC) structure. This control method allows to reduce the torque and flux ripples as well as to optimize the total harmonic distortion (THD) of motor currents. The use of 3LVSI increases the number of generated voltage, which allows improving the quality of its waveform and thus improves the DTC strategy. The system modeling and control are implemented in Matlab/Simulink environment. The analysis of simulation results shows the better performances of this control, especially in terms of torque and flux behavior, compared to conventional DTC.

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Carrier-Based PWM Technique for Inverter-Fed Multiphase Induction Motor

International Journal of Electrical and Computer Engineering (IJECE) ◽

10.11591/ijece.v6i5.10754 ◽

2016 ◽

Vol 6 (5) ◽

pp. 1967

Author(s):

Jyothi B ◽

M.Venugopala Rao

Keyword(s):

Induction Motor ◽

Pulse Width ◽

Pulse Width Modulation ◽

Voltage Source ◽

Matlab Software ◽

Third Harmonic ◽

Voltage Source Inverters ◽

Three Phase ◽

Simulation Results ◽

Multiphase Machine

<p>Multiphase (more than three phases) is very much popular due to their eminent features compared to conventional three-phase counter parts. In order to drive the multiphase machine, it requires same phase input w.r.t the no of phases at the output. This paper mainly focuses on five phase, because even after failure of one phase, the performance does not degraded much. Voltage source inverters (VSIs) are used to feed the induction motor. voltage source inverters (VSIs) switches are ON and OFF precisely to control the output. In order to implement harmonic waveform characteristic, carrier based PWM (pulse width modulation) is performed. By using with and without third harmonic injection machine torque is highly improved. Using MATLAB software, the simulation results are presented in the form of computer traces and high traded performance of the machine are discussed.</p>

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