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Basics of vector control by Dr Rajin M. Linus

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Rajin Linus

The webinar hosted by Dr. Rajin M. Linus on June 16, 2020, focused on the basics of vector control for AC machines, emphasizing its accessibility for new researchers and the possibility of implementation in MATLAB simulations. Key discussions included the effectiveness of PID controllers, comparisons between scalar and vector control, and methodologies for three-phase to two-phase conversion. The session also addressed various reference frames used in the context of vector control, underlining the importance of this topic in modern electrical engineering applications.

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DR RAJIN M. LINUS Webinar ON 16TH JUNE 2020 @ 11 AM Basics of Vector Control in AC Machines Associate Professor & HOD Electrical Engineering Department, Sanjay Ghodawat University, Kolhapur , Maharashtra , India
Motivation for Selecting This Topic  Around 200 to 400 publication between 2017 – 2019 Most of the researchers – Feeling Tough  Easy to understand and easy to implement in MATLAB Simulation Environment Start new researchers in this field In different research group – Many Doubts in basics Hardware implementation is also possible using some DSP Processors 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 2
Why we need Vector Control 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 3 PID Controller Reference Feedback + - RV  FV 5RV 3FV Steady State Error can be Zero using PID Controller tSinVR 3145 tSinVF 3143 Steady State Error may not be zero using PID Controller Scalar Control - Sluggish Response (Torque & Flux are the function of V, f and current) Scalar Control- Sluggish Response in VSC & CSC Control (Coupling effect in Machine) PID Controllers in AC Machine – Steady State Error will not be zero. Scalar Control - Good Steady State Response & Poor dynamic response (Deviation in flux linkage in phase & Magnitude)
Flux Linkages in Three Phase System 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 4 R Y B  F Y B 120 120 120  )240()120()(   CosiCosiCosiNF BYRRYB Flux Linkages                         SiniiiCosiiiNF CYRCYRRYB 2 3 2 3 0 2 1 2 1    SiniCosiNF RYB   F iNRYB iNRYB i i
Finding Number of Turns in Two Phase F                                        B Y R RYB i i i kkk N i i i N 2 3 2 3 0 2 1 2 1 1 0 0       M                   k k k M 2 1 2 3 2 1 2 1 2 3 2 1 2 1 01 3 21 2 1 2 1  k k k                    2 1 2 1 2 1 2 3 2 3 0 2 1 2 1 1 M T MM 3 21   16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 5
Finding Number of Turns in Two Phase Contd… 32 00 RYB T RYB T VIVI  W.K.T. RYBRYBMININ 00  RYB RYB MI N N I 0 0    ……………………..(1) ………...(2) 3 2 9 4 0 0 0           αβ RYB RYB RYBαβ RYB N N MV N N M N N  16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 6 Assumption: Per phase power is same …...................(3)
Equations in Two Phase Conversion US    ……………………..(3)                                   B Y R v v v v v v 2/12/12/1 2/32/30 2/12/11 3 2 0   ……………………..(4) Uα Uβ  jVVVS  16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 7                                  c b a i i i i i i 2/12/12/1 2/32/30 2/12/11 3 2 0    jIIIS  Voltage Equation Current Equation
Reality of Three Phase to Two Phase Conversion (RYB)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 8  F R Y B Supply Frequency Supply Frequency Simulink Visualization
Reality of Three Phase to Two Phase Conversion (RBY)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 9  F R B Y Supply Frequency Supply Frequency Simulink Visualization
For PF of 0.8 in Current Wave form   16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 10     F R Y B  Supply Frequency Supply Frequency Simulink Visualization
Power in αβ Reference Frame * 00  IVS  ……………………..(5) ……………..……....(6) 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 11 Apparent Power (S) ….....................(7)   ivivp    ivivq  Instantaneous Real Power (p) Instantaneous Reactive Power (q)  jVVV 0  jVII  * 0
Discussion and Clarification -1 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 12 Discussion and Doubt in RYB to αβ Conversion (2 Minutes) 1. Send the doubts in chat box with your name. I will clarify it 2. For clarification and further discussion, I may call the name so that the respective professional can unmute and speak. (It will avoid the echo issues, interference and noise) Instruction
Summary of Three Phase to αβ Conversion 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 13 1. RYB sequence – β Axis Lead 2. RBY sequence –β Axis Lag 3. When variables in RYB /RBY lag, the respective αβ axis will lag based on Power Factor
Concept in DQ Reference Frame 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 14   You Here Radius of 1 Unit 0 1 0 -1 0 90 180 270 360 = 0 1 0     U U Supply Frequency 90 0 1     U U 1 0     U U 0 1     U U 1 0     U U 0 1     U U Supply Frequency Simulink Visualization
Concept in DQ Reference Frame Contd… 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 15 0 90 180 270 360 = 0 1 0     U U Supply Frequency 90 0 1     U U 1 0     U U 0 1     U U 1 0     U U 0 1     U U Like to See always 0 90 180 270 360 = 0 1 0     U U Supply Frequency 90 1 0     U U 1 0     U U 1 0     U U 1 0     U U 1 0     U U Running the speed of Supply frequency   Run Start Radius of 1 Unit 0 1 Supply Frequency Supply Frequency
Concept in DQ Reference Frame Contd… 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 16 Mathematical Analysis     d q tCosVV Sm   tSinVV Sm     SinVCosVVd    CosVSinVVq     tCosVV Smd    tSinVV Smq   d q  dq tS  Speed Speed md VV  0qV tS 
Reality of αβ to DQ Reference Frame (RYB)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 17  F R Y B 1 q 0 d Supply Frequency Supply Frequency
Reality of αβ to DQ Reference Frame (RYB) Contd.. 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 18 Simulink Visualization
Reality of αβ to DQ Reference Frame (RBY)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 19  F R B Y 1 q 0 d Supply Frequency Supply Frequency
Reality of αβ to DQ Reference Frame (RBY) Contd.. 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 20 Simulink Visualization
Power in DQ Reference Frame * 00 dqIVS dq  ……………………..(8) ……………..……....(9) 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 21 Apparent Power (S) ….....................(10) qqdd ivivp  qd ivivq dq  Instantaneous Real Power (p) Instantaneous Reactive Power (q) In Synchronous Reference frame md VV  0qV Instantaneous Real Power (p) ddivp  qivq d  Instantaneous Reactive Power (q) Independent control of p, q are possible Application: Grid Integration of Renewable Energy System qjVVV ddq 0 qjVII ddq  * 0
Discussion and Clarification -2 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 22 Discussion and Doubt in αβ to DQ Conversion (2 Minutes) 1. Send the doubts in chat box with your name. I will clarify it 2. For clarification and further discussion, I may call the name so that the respective professional can unmute and speak. (It will avoid the echo issues, interference and noise) Instruction
Different Reference Frame 16th June 2020 @ 11 am 23 1. Stationary Reference Frame 2. Arbitrary Reference Frame 3. Synchronous Reference Frame 4. Rotor Reference Frame
Stationary Reference Frame 16th June 2020 @ 11 am 24 S S R R R R You Here Stationary Reference Frame tCosVV SmS   tSinVV SmS   )( RSmR tSinVV   )( RSmS tCosVV   tCosVV SmSS   tSinVV SmSS   )( RSmRS tSinVV   )( RSmRS tCosVV   Application DC Machine
Arbitrary Reference Frame 16th June 2020 @ 11 am 25 S S R R R R Xd Xq tCosVV SmS   tSinVV SmS   )( RSmR tSinVV   )( RSmR tCosVV   )( XSmdSX tCosVV   X X )( XSmqSX tSinVV   )( XRmdRX CosVV   )( XRmqRX SinVV   In Arbitrary Reference Frame        XX XX CosSin SinCos   Conversion Matrix Supply Frequency
Synchronous Reference Frame 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 26 S S R R R R Frame Rotating in Synchronous Speed S Rd Rq R R S Sd Sq )( XSmdSX tCosVV   )( XSmqSX tSinVV   )( RXmdRX CosVV   )( RXmqRX SinVV   In Arbitrary Reference Frame tSSX   mSSmdSS VtCosVV  )(  0)(  SSmqSS tSinVV  )( RSmdRS CosVV   )( RSmqRS SinVV   Application Squirrel Cage Induction Motor Slip Ring Induction Motor (Stator Side Control) Supply Frequency
Rotor Reference Frame 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 27 S S R R R R Frame Rotating in Rotor Speed Sd Rd Rq R R Sq )( XSmdSX tCosVV   )( XSmqSX tSinVV   )( RXmdRX CosVV   )( RXmqRX SinVV   In Arbitrary Reference Frame tRRX   )( RSmdSR tCosVV   )( RSmqSR tSinVV   mRRmdRR VCosVV  )(  0)(  RRmqRR SinVV  Application R R Slip Ring Induction Motor (Rotor Side Control) Supply Frequency
Synchronous Reference Frame (Rotor Syn. Speed) 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 28 S S R R R R Frame Rotating in Synchronous Speed S Rd Rq S Sd Sq )( XSmdSX tCosVV   )( XSmqSX tSinVV   )( RXmdRX CosVV   )( RXmqRX SinVV   In Arbitrary Reference Frame tSSX   mSSmdSS VtCosVV  )(  0)(  SSmqSS tSinVV  mRSmdRS VCosVV  )(  0)(  RSmqRS SinVV  Application Synchronous Motor/ PMSM Motor tSSR  
Final Discussion and Clarification 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 29 Final Doubt and Discussion are Called 1. Send the doubts in chat box with your name. I will clarify it 2. For clarification and further discussion, I may call the name so that the respective professional can unmute and speak. (It will avoid the echo issues, interference and noise) Instruction
Feedback From Participants Kindly Introduce Yourself first and provide your feedback for Betterment 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 30
Thank You for Your Patience Thank You 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 31 1. All Faculties from Various Places 2. All Research Scholars and PG/UG Students from Various Places 3. Industrialist in different Region 4. Prof. Mr Anand Kumbhar , Electrical Department, SGU (Coordinator) 5. My Other Team Members of Electrical Department, Sanjay Ghodawat University (SGU) 6. Honorable Vice Chancellor, Respected Registrar, Dean of Academics and Director 7. Other Well-wishers Dr Rajin M. Linus Associate Professor & HOD Electrical Engineering Department, Sanjay Ghodawat University, Kolhapur , Maharashtra , India Contact: rajin.linus@sanjayghodawatuniversity.ac.in rajinmlinusped@yahoo.com. Mobile: 8072737249/9488078881

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Basics of vector control by Dr Rajin M. Linus

  • 1. DR RAJIN M. LINUS Webinar ON 16TH JUNE 2020 @ 11 AM Basics of Vector Control in AC Machines Associate Professor & HOD Electrical Engineering Department, Sanjay Ghodawat University, Kolhapur , Maharashtra , India
  • 2. Motivation for Selecting This Topic  Around 200 to 400 publication between 2017 – 2019 Most of the researchers – Feeling Tough  Easy to understand and easy to implement in MATLAB Simulation Environment Start new researchers in this field In different research group – Many Doubts in basics Hardware implementation is also possible using some DSP Processors 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 2
  • 3. Why we need Vector Control 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 3 PID Controller Reference Feedback + - RV  FV 5RV 3FV Steady State Error can be Zero using PID Controller tSinVR 3145 tSinVF 3143 Steady State Error may not be zero using PID Controller Scalar Control - Sluggish Response (Torque & Flux are the function of V, f and current) Scalar Control- Sluggish Response in VSC & CSC Control (Coupling effect in Machine) PID Controllers in AC Machine – Steady State Error will not be zero. Scalar Control - Good Steady State Response & Poor dynamic response (Deviation in flux linkage in phase & Magnitude)
  • 4. Flux Linkages in Three Phase System 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 4 R Y B  F Y B 120 120 120  )240()120()(   CosiCosiCosiNF BYRRYB Flux Linkages                         SiniiiCosiiiNF CYRCYRRYB 2 3 2 3 0 2 1 2 1    SiniCosiNF RYB   F iNRYB iNRYB i i
  • 5. Finding Number of Turns in Two Phase F                                        B Y R RYB i i i kkk N i i i N 2 3 2 3 0 2 1 2 1 1 0 0       M                   k k k M 2 1 2 3 2 1 2 1 2 3 2 1 2 1 01 3 21 2 1 2 1  k k k                    2 1 2 1 2 1 2 3 2 3 0 2 1 2 1 1 M T MM 3 21   16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 5
  • 6. Finding Number of Turns in Two Phase Contd… 32 00 RYB T RYB T VIVI  W.K.T. RYBRYBMININ 00  RYB RYB MI N N I 0 0    ……………………..(1) ………...(2) 3 2 9 4 0 0 0           αβ RYB RYB RYBαβ RYB N N MV N N M N N  16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 6 Assumption: Per phase power is same …...................(3)
  • 7. Equations in Two Phase Conversion US    ……………………..(3)                                   B Y R v v v v v v 2/12/12/1 2/32/30 2/12/11 3 2 0   ……………………..(4) Uα Uβ  jVVVS  16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 7                                  c b a i i i i i i 2/12/12/1 2/32/30 2/12/11 3 2 0    jIIIS  Voltage Equation Current Equation
  • 8. Reality of Three Phase to Two Phase Conversion (RYB)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 8  F R Y B Supply Frequency Supply Frequency Simulink Visualization
  • 9. Reality of Three Phase to Two Phase Conversion (RBY)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 9  F R B Y Supply Frequency Supply Frequency Simulink Visualization
  • 10. For PF of 0.8 in Current Wave form   16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 10     F R Y B  Supply Frequency Supply Frequency Simulink Visualization
  • 11. Power in αβ Reference Frame * 00  IVS  ……………………..(5) ……………..……....(6) 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 11 Apparent Power (S) ….....................(7)   ivivp    ivivq  Instantaneous Real Power (p) Instantaneous Reactive Power (q)  jVVV 0  jVII  * 0
  • 12. Discussion and Clarification -1 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 12 Discussion and Doubt in RYB to αβ Conversion (2 Minutes) 1. Send the doubts in chat box with your name. I will clarify it 2. For clarification and further discussion, I may call the name so that the respective professional can unmute and speak. (It will avoid the echo issues, interference and noise) Instruction
  • 13. Summary of Three Phase to αβ Conversion 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 13 1. RYB sequence – β Axis Lead 2. RBY sequence –β Axis Lag 3. When variables in RYB /RBY lag, the respective αβ axis will lag based on Power Factor
  • 14. Concept in DQ Reference Frame 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 14   You Here Radius of 1 Unit 0 1 0 -1 0 90 180 270 360 = 0 1 0     U U Supply Frequency 90 0 1     U U 1 0     U U 0 1     U U 1 0     U U 0 1     U U Supply Frequency Simulink Visualization
  • 15. Concept in DQ Reference Frame Contd… 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 15 0 90 180 270 360 = 0 1 0     U U Supply Frequency 90 0 1     U U 1 0     U U 0 1     U U 1 0     U U 0 1     U U Like to See always 0 90 180 270 360 = 0 1 0     U U Supply Frequency 90 1 0     U U 1 0     U U 1 0     U U 1 0     U U 1 0     U U Running the speed of Supply frequency   Run Start Radius of 1 Unit 0 1 Supply Frequency Supply Frequency
  • 16. Concept in DQ Reference Frame Contd… 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 16 Mathematical Analysis     d q tCosVV Sm   tSinVV Sm     SinVCosVVd    CosVSinVVq     tCosVV Smd    tSinVV Smq   d q  dq tS  Speed Speed md VV  0qV tS 
  • 17. Reality of αβ to DQ Reference Frame (RYB)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 17  F R Y B 1 q 0 d Supply Frequency Supply Frequency
  • 18. Reality of αβ to DQ Reference Frame (RYB) Contd.. 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 18 Simulink Visualization
  • 19. Reality of αβ to DQ Reference Frame (RBY)    16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 19  F R B Y 1 q 0 d Supply Frequency Supply Frequency
  • 20. Reality of αβ to DQ Reference Frame (RBY) Contd.. 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 20 Simulink Visualization
  • 21. Power in DQ Reference Frame * 00 dqIVS dq  ……………………..(8) ……………..……....(9) 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 21 Apparent Power (S) ….....................(10) qqdd ivivp  qd ivivq dq  Instantaneous Real Power (p) Instantaneous Reactive Power (q) In Synchronous Reference frame md VV  0qV Instantaneous Real Power (p) ddivp  qivq d  Instantaneous Reactive Power (q) Independent control of p, q are possible Application: Grid Integration of Renewable Energy System qjVVV ddq 0 qjVII ddq  * 0
  • 22. Discussion and Clarification -2 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 22 Discussion and Doubt in αβ to DQ Conversion (2 Minutes) 1. Send the doubts in chat box with your name. I will clarify it 2. For clarification and further discussion, I may call the name so that the respective professional can unmute and speak. (It will avoid the echo issues, interference and noise) Instruction
  • 23. Different Reference Frame 16th June 2020 @ 11 am 23 1. Stationary Reference Frame 2. Arbitrary Reference Frame 3. Synchronous Reference Frame 4. Rotor Reference Frame
  • 24. Stationary Reference Frame 16th June 2020 @ 11 am 24 S S R R R R You Here Stationary Reference Frame tCosVV SmS   tSinVV SmS   )( RSmR tSinVV   )( RSmS tCosVV   tCosVV SmSS   tSinVV SmSS   )( RSmRS tSinVV   )( RSmRS tCosVV   Application DC Machine
  • 25. Arbitrary Reference Frame 16th June 2020 @ 11 am 25 S S R R R R Xd Xq tCosVV SmS   tSinVV SmS   )( RSmR tSinVV   )( RSmR tCosVV   )( XSmdSX tCosVV   X X )( XSmqSX tSinVV   )( XRmdRX CosVV   )( XRmqRX SinVV   In Arbitrary Reference Frame        XX XX CosSin SinCos   Conversion Matrix Supply Frequency
  • 26. Synchronous Reference Frame 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 26 S S R R R R Frame Rotating in Synchronous Speed S Rd Rq R R S Sd Sq )( XSmdSX tCosVV   )( XSmqSX tSinVV   )( RXmdRX CosVV   )( RXmqRX SinVV   In Arbitrary Reference Frame tSSX   mSSmdSS VtCosVV  )(  0)(  SSmqSS tSinVV  )( RSmdRS CosVV   )( RSmqRS SinVV   Application Squirrel Cage Induction Motor Slip Ring Induction Motor (Stator Side Control) Supply Frequency
  • 27. Rotor Reference Frame 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 27 S S R R R R Frame Rotating in Rotor Speed Sd Rd Rq R R Sq )( XSmdSX tCosVV   )( XSmqSX tSinVV   )( RXmdRX CosVV   )( RXmqRX SinVV   In Arbitrary Reference Frame tRRX   )( RSmdSR tCosVV   )( RSmqSR tSinVV   mRRmdRR VCosVV  )(  0)(  RRmqRR SinVV  Application R R Slip Ring Induction Motor (Rotor Side Control) Supply Frequency
  • 28. Synchronous Reference Frame (Rotor Syn. Speed) 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 28 S S R R R R Frame Rotating in Synchronous Speed S Rd Rq S Sd Sq )( XSmdSX tCosVV   )( XSmqSX tSinVV   )( RXmdRX CosVV   )( RXmqRX SinVV   In Arbitrary Reference Frame tSSX   mSSmdSS VtCosVV  )(  0)(  SSmqSS tSinVV  mRSmdRS VCosVV  )(  0)(  RSmqRS SinVV  Application Synchronous Motor/ PMSM Motor tSSR  
  • 29. Final Discussion and Clarification 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 29 Final Doubt and Discussion are Called 1. Send the doubts in chat box with your name. I will clarify it 2. For clarification and further discussion, I may call the name so that the respective professional can unmute and speak. (It will avoid the echo issues, interference and noise) Instruction
  • 30. Feedback From Participants Kindly Introduce Yourself first and provide your feedback for Betterment 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 30
  • 31. Thank You for Your Patience Thank You 16th June 2020 @ 11 am BASICS OF VECTOR CONTROL FOR AC MACHINES BY DR RAJIN M. LINUS, SGU, KOLHAPUR- WEBINAR 31 1. All Faculties from Various Places 2. All Research Scholars and PG/UG Students from Various Places 3. Industrialist in different Region 4. Prof. Mr Anand Kumbhar , Electrical Department, SGU (Coordinator) 5. My Other Team Members of Electrical Department, Sanjay Ghodawat University (SGU) 6. Honorable Vice Chancellor, Respected Registrar, Dean of Academics and Director 7. Other Well-wishers Dr Rajin M. Linus Associate Professor & HOD Electrical Engineering Department, Sanjay Ghodawat University, Kolhapur , Maharashtra , India Contact: rajin.linus@sanjayghodawatuniversity.ac.in rajinmlinusped@yahoo.com. Mobile: 8072737249/9488078881