Independent Control of a Dual Induction Motors Drives Control Based on Indirect Field Vector Oriented Method

2018 ◽  
pp. 64-72
Author(s):  
Rabee Hassain ◽  
Ali Abdul Aubbas ◽  
Adel Dakil

To reduce the cost and the system complexity in power applications, voltage source five leg space vector pulse width modulation inverter (FLI) is designed to drive dual induction motors. This paper presents independent control of dual induction motor fed by five leg inverter. Indirect field oriented control is used separate by each motor. Two space vector pulse width modulator is utilized to generate the switching signal for FLI and a double zero sequence modulation technique (DZS) is employed to generate the modulation signals. Two motors operate under different operation condition where the result proven that dual induction motor can independently controlled by FLI.

Author(s):  
Debanjan Roy ◽  
Madhu Singh ◽  
Tapas Roy

<p>Performance of a voltage source inverter depends on pulse width modulation algorithms. Various algorithms exist for conventional space vector as well as space vector based bus clamped pulse width modulation for multilevel inverter in the literature. In this paper appropriate region selection algorithm for conventional space vector pulse width modulation (CSVPWM) and bus clamped pulse width modulation (BCPWM) techniques are proposed for diode clamped three level voltage source inverter. The proposed techniques are implemented on a three level voltage source inverter fed induction motor drive for open loop operation. The schemes are simulated in MATLAB/SIMULINK environments. The merit of proposed region selection algorithm is tested and verified through simulation result. Further performance comparisons between SVPWM and BCPWM for different modulation index are discussed. </p>


This paper deals with sensorless vector controlled induction motor in which torque pulsations are reduced with improved input of induction motor. In proposed technique two multi winding transformers are used for generation of 18 sinusoidal signals given to rectifier unit and the rectifier output given as input to 9 level multi level inverter. In this proposed technique gating signals to the inverter switches will be provided through space vector pulse width modulation which considers speed as reference. This configuration was simulated in MATLAB/Simulink.and the simulation results are presented here with improvement in reduction of THD.


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