Design And Implementation Of Direct Torque Control Drive Of Three-phase Induction Motor Based On Dsp

Industrial Control Engineering Project Topics

Get the Complete Project Materials Now! ยป

Direct torque control (DTC) technology is a superior, modern and a new type of AC machinerndrive control technology developed after vector control technology. In this Thesis, the DirectrnTorque Control (DTC) scheme for Induction Motor Drive using Space Vector Modulationrn(SVM) technique is studied. DTC provides excellent properties of regulation, even if withoutrnrotational speed feedback. The technology directly controls the instantaneous value of thernelectromagnetic torque and stator flux-linkage through the control of stator flux linkage andrnelectromagnetic torque in the stationary coordinate system and has the advantages of rapidrntorque response, simple control structure, and easy digitalization. These quantities arernestimated with only stator voltages, stator currents, and stator resistance. rnThe induction motor has been modeled and simulated in the stationary d-q reference frame andrnits transient and steady-state characteristics are drawn. The MATLAB Simulink consists of anrninduction motor mathematical model, a two-level hysteresis comparator for stator flux control,rna three-level hysteresis comparator for torque control, a switching table for voltage vectorrnselection, stator flux position identifier, a three-phase voltage source inverter (VSI), flux andrntorque estimators. The hardware circuit is composed of in addition to the MATLAB Simulinkrncomponent it has three-phase Induction machine, TMDSHVMTRPFCKIT with otherrnnecessary equipment. The switching table is employed for selecting the optimum inverterrnoutput voltage vectors so as to attain a fast torque response, low inverter switching frequency,rnand low harmonic losses in the code. The simulation of DTC schemes (Conventional DTC)rnhas been carried out using MATLAB/SIMULINK and the results are discussed. Fromrnestimated speed of simulation result it has good transient and steady state performance withrnovershoot 1.531% and with approximated steady state error 0.0002. High Voltage MotorrnControl and PFC Development kit (TMDSHVMTRPFCKIT) with TMS320F28035 Control rnCard is programmed using code composer studio for hardware implementation of the DTC rnscheme and the results are discussed. steady state estimated stator flux module has fluxuationrnfrom the reference with an error of 2.8% maximum ripple.

Get Full Work

Report copyright infringement or plagiarism

Be the First to Share On Social



1GB data
1GB data

RELATED TOPICS

1GB data
1GB data
Design And Implementation Of Direct Torque Control Drive Of Three-phase Induction Motor Based On Dsp

214