DTC projects IEEE for BTech and MTech using Matlab/Simulink

### For more DTC projects IEEE go through the Projects List

PROJECT CODE | PROJECT NAME |
---|---|

AT-DTC-1 | Analysis and performance of the induction motor under hysteresis current controlled DTC |

AT-DTC-2 | Simplified SVPWM algorithm for neutral point clamped 3-level inverter fed DTC induction motor drive |

AT-DTC-3 | A constant switching frequency based DTC method for interior PMSG motor |

AT-DTC-4 | Analysis and traction motor drive with regenerative braking and using modified Direct Torque Control |

AT-DTC-5 | Improved Direct Torque Control of induction motor |

AT-DTC-6 | Direct torque control of squirrel cage induction motor for optimum current ripple using three level inverter |

AT-DTC-7 | Study of induction motor drive with direct torque control scheme and indirect field oriented control scheme using vector modulation |

AT-DTC-8 | Direct torque control of induction motor drive with flux optimization |

AT-DTC-9 | Direct torque control of induction motor with constant switching frequency |

AT-DTC-10 | Direct Torque Control Based on Space Vector Modulation with Adaptive Stator Flux Observer for Induction Motors |

**Direct torque control** (DTC) is used in variable frequency drives. To control the torque (and thus finally the speed) of three-phase AC electric motors. This involves calculating an estimate of the motor’s magnetic flux. And torque based on the measured voltage and current of the motor.

The properties of DTC can be characterized as follows:

- Torque and flux can be changed very fast by changing the references
- High efficiency & low losses – switching losses are minimized because the transistors are switched only when it is needed to keep torque and flux within their hysteresis bands
- The step response has no overshoot
- No coordinate transforms are needed, all calculations are done in stationary coordinate system
- No separate modulator is needed, the hysteresis control defines the switch control signals directly
- There are no PI current controllers. Thus no tuning of the control is required
- The switching frequency of the transistors is not constant. However, by controlling the width of the tolerance bands the average switching frequency can be kept roughly at its reference value. This also keeps the current and torque ripplesmall. Thus the torque and current ripple are of the same magnitude as with vector controlled drives with the same switching frequency.
- Due to the hysteresis control the switching process is random by nature. Thus there are no peaks in the current spectrum. This further means that the audible noise of the machine is low