Method of Direct Torque Control for three-level Voltage Inverter

This paper presents a new method of control based on direct torque control (DTC) strategy. This method is designed to be applied in the control of induction motors (IM) fed with a three-level voltage source inverter (VSI). This type of inverter has several advantages in comparison with standard two-...

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Bibliographic Details
Main Authors: Chlebis, P., Moravcik, P., Simonik, P.
Format: Conference Proceeding
Language:English
Subjects:
Direct Torque Control
five-level torque comparator
Hysteresis motors
Induction Motor
Induction motors
Inverters
Magnetic fields
Motion control
Sensorless control
Stators
Switching frequency
Three-level Voltage Inverter
TMS320F2812
Torque control
Voltage control
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Summary:This paper presents a new method of control based on direct torque control (DTC) strategy. This method is designed to be applied in the control of induction motors (IM) fed with a three-level voltage source inverter (VSI). This type of inverter has several advantages in comparison with standard two-level VSI, such as a greater number of levels in the output voltage waveforms, lower dV/dt, less harmonic distortion in voltage and current waveforms and lower switching frequencies. In the new method, torque and stator flux errors are used together with the stator flux angular frequency to generate a reference voltage vector. Further, practical application and operation of designed converters are documented on experimental results.