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saravana kumar R
saravana kumar R

The document describes modeling and simulating a single phase fully controlled bridge rectifier fed separately excited DC motor in MATLAB/Simulink. The model is developed to plot the average output voltage and current waveforms. Key steps include determining the critical speed expression, calculating torque based on voltage and current, and measuring outputs using various Simulink blocks. The simulation results match the theoretical calculations for average output voltage and current.

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Title: : Analysis of single phase fully controlled bridge converter fed separately excited dc motor . 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
Aim: Create a model and simulate a single phase fully controlled rectifier fed separately excited dc motor using MATLAB /Simulink to plot the average output voltage and output current waveform Motor parameter : Vrated : 200 V ; Nrated : 875 RPM ; Irated : 150A Ra = 0.06 ohm ; La = 2.85 mH Converter parameters: single phase fully controlled Bridge Rectifier with an ac source voltage of 220 V,50Hz for firing angle 留 = 120 degrees and speed =-400 rpm 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
Step 2: Find m IF m < mc The drive is operating under continuous conduction mode (or) IF m > mc The drive is operating under discontinuous conduction mode Step1 : Find Critical speed expression (mc) for single-phase fully-controlled Bridge rectifier Formula used and Analytical Calculation: 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
Find the Torque Step 3: Find Ia = (Va Eb) /Ra Step 4: Find T Step 2: Find K = (Vrated Irated *Ra) / rated Step 3: Find Eb=K* Step 1: Find Va If continuous , Va = (2*Vm/)*Cos(留) If discontinuous , Va = 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
S.no Apparatus Simulink Library browser path Block Parameters 1. Ac Voltage Source Simulink/ Simscape/ Simpower systems/ Second generation/ Electrical sources Ac voltage source Amplitude = 220*1.414 Frequency = 50Hz 2. Thyristor Simulink/ Simscape/ simpower systems / second generation/ power electronics Thyristor Default values Requirements : Software used: MATLAB R 2013 b 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
3. Pulse generator (For Thyristor & Thyristor 3 ) Simulink/ Sources Pulse generator Amplitude = 1 Period (sec.) = 0.02 Pulse width (%) = 5 Phase delay (sec.) = 6.67e-3 4. Pulse generator (For Thyristor 1 & Thyristor 2) Simulink /Sources Pulse generator Amplitude = 1 Period (sec.) = 0.02 Pulse width (%) = 5 Phase delay (sec.) = 16.67e-3 S.no Apparatus Library browser path Block Parameters 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
5. Resistor, Inductor Simulink/Simscape/ simpower systems / second generation/ Elements series RLC branch R=0.06 L=2.85e-3 6. DC voltage source Simulink/ Simscape/ simpower systems/ second generation/ Electrical sources DC voltage source Amplitude = -87.31 S.no Apparatus Library browser path Block Parameters 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
7. Voltage , current measurements Simulink/Simscape/ simpowersystem /second generation/ measurement Voltage , current measurement Default values 8. Powergui Simulink/ Simscape/ simpower system/second generation powergui - 12. Mean Simulink/ Simscape/ simpower system /second generation/ Control &measurement Library / Measurement Mean Frequency = 50 S.no Apparatus Library Block Parameters 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
13. Display Simulink/ Sinks Display - 13. Scope Simulink/ Sinks Scope - 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
Matlab /Simulink Diagram 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02 -400 -300 -200 -100 0 100 200 300 OUTPUT Voltage and Current Waveforms: for one cycle to find out Beta 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
Result : Average Output voltage Average Output current Calculated Simulated Calculated Simulated 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14

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  • 1. Title: : Analysis of single phase fully controlled bridge converter fed separately excited dc motor . 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 2. Aim: Create a model and simulate a single phase fully controlled rectifier fed separately excited dc motor using MATLAB /Simulink to plot the average output voltage and output current waveform Motor parameter : Vrated : 200 V ; Nrated : 875 RPM ; Irated : 150A Ra = 0.06 ohm ; La = 2.85 mH Converter parameters: single phase fully controlled Bridge Rectifier with an ac source voltage of 220 V,50Hz for firing angle 留 = 120 degrees and speed =-400 rpm 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 3. Step 2: Find m IF m < mc The drive is operating under continuous conduction mode (or) IF m > mc The drive is operating under discontinuous conduction mode Step1 : Find Critical speed expression (mc) for single-phase fully-controlled Bridge rectifier Formula used and Analytical Calculation: 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 4. Find the Torque Step 3: Find Ia = (Va Eb) /Ra Step 4: Find T Step 2: Find K = (Vrated Irated *Ra) / rated Step 3: Find Eb=K* Step 1: Find Va If continuous , Va = (2*Vm/)*Cos(留) If discontinuous , Va = 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 5. S.no Apparatus Simulink Library browser path Block Parameters 1. Ac Voltage Source Simulink/ Simscape/ Simpower systems/ Second generation/ Electrical sources Ac voltage source Amplitude = 220*1.414 Frequency = 50Hz 2. Thyristor Simulink/ Simscape/ simpower systems / second generation/ power electronics Thyristor Default values Requirements : Software used: MATLAB R 2013 b 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 6. 3. Pulse generator (For Thyristor & Thyristor 3 ) Simulink/ Sources Pulse generator Amplitude = 1 Period (sec.) = 0.02 Pulse width (%) = 5 Phase delay (sec.) = 6.67e-3 4. Pulse generator (For Thyristor 1 & Thyristor 2) Simulink /Sources Pulse generator Amplitude = 1 Period (sec.) = 0.02 Pulse width (%) = 5 Phase delay (sec.) = 16.67e-3 S.no Apparatus Library browser path Block Parameters 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 7. 5. Resistor, Inductor Simulink/Simscape/ simpower systems / second generation/ Elements series RLC branch R=0.06 L=2.85e-3 6. DC voltage source Simulink/ Simscape/ simpower systems/ second generation/ Electrical sources DC voltage source Amplitude = -87.31 S.no Apparatus Library browser path Block Parameters 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 8. 7. Voltage , current measurements Simulink/Simscape/ simpowersystem /second generation/ measurement Voltage , current measurement Default values 8. Powergui Simulink/ Simscape/ simpower system/second generation powergui - 12. Mean Simulink/ Simscape/ simpower system /second generation/ Control &measurement Library / Measurement Mean Frequency = 50 S.no Apparatus Library Block Parameters 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 9. 13. Display Simulink/ Sinks Display - 13. Scope Simulink/ Sinks Scope - 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 10. Matlab /Simulink Diagram 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 11. 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02 -400 -300 -200 -100 0 100 200 300 OUTPUT Voltage and Current Waveforms: for one cycle to find out Beta 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14
  • 12. Result : Average Output voltage Average Output current Calculated Simulated Calculated Simulated 10/12/2016 Dr.R.SaravanaKumar , Professor, SELECT,VIT UNIVERSITY,Vellore- 14