Ce diaporama a bien été signalé.
Nous utilisons votre profil LinkedIn et vos données d’activité pour vous proposer des publicités personnalisées et pertinentes. Vous pouvez changer vos préférences de publicités à tout moment.
DIRECT TORQUE CONTROL OF 3
PHASE INDUCTION MOTOR USING
4 SWITCH INVERTER
By:
S.Madhumitha
Reg no:311612415006-MNM Jain Eng...
OBJECTIVE
Variable Speed control of three
phase induction motor using a four
switch inverter by Direct Torque
Control.Cont...
LITERATURE SURVEY
M.Azab and A.L.Orille IEEE Trans. Ind.
Appl., vol. 22, no. 5, pp. 820-827, 2010.
• “Novel Flux and torqu...
LITERATURE SURVEY
B.Bouzidi,B.EL.Basidi,A.Masmoudi,
IEEE Trans. Magn., vol. 48, no. 8, pp.
3133–3136, Aug. 2011.
• Investi...
LITERATURE SURVEY
J.K.Kang, D.W.Chang and S.K.Sul,IEEE
Trans.Power Electron.,vol.27,no. 5,pp. 2566-
2575,May 2012.
• “Dire...
LITERATURE SURVEY
M. D. Hennen, M. Niessen, C. Heyers, H. J.
Brauer, and R.W. DeDoncker,
• “Development and control of an ...
EXISTING METHOD
• The speed control of three phase induction
motor from stator side are further classified as:
• V / f con...
madhumitha.santhiraj@gmail.com
8
madhumitha.santhiraj@gmail.com
9
santhiraj.madhumitha@gmail.com 10
madhumitha.santhiraj@gmail.com
11
madhumitha.santhiraj@gmail.com
12
santhiraj.madhumitha@gmail.com 13
madhumitha.santhiraj@gmail.com
14
madhumitha.santhiraj@gmail.com
15
DISADVANTAGES OF
EXISTING METHOD
• Harmonic content in motor current
increases at low speed.
• The machine saturates at li...
PROPOSED METHOD
• The speed control of induction motor
is done using direct torque control
with four switch three phase in...
CONCEPTUAL DESIGN
EXISTING METHOD PROPOSED METHOD
madhumitha.santhiraj@gmail.com 18
HARDWARE FABRICATION
MODULES TESTING
S...
BLOCK DIAGRAM
19
madhumitha.santhiraj@gmail.com
CIRCUIT DIAGRAM
20
madhumitha.santhiraj@gmail.com
SPACE VECTOR
MODULATION
• Technique to generate PWM load line voltages that
are in average equal to a given load line volt...
SPACE VECTORS GENERATED
USING FSTPI
•The four vectors are
generated are unbalanced so
in order to generate balance
voltage...
SPACE VECTOR
MODULATION
• The active voltage generated by SSTPI has a amplitude
equal to
• Where is the DC bus voltage
• F...
DIRECT TORQUE
CONTROL
• Stator flux linkage is estimated by
integrating the stator voltages.
• Torque is estimated as a cr...
ADVANTAGES OF SVM DTC
• SVM-DTC technique gives ripple free
operation for entire speed range.
• Improvement in flux, torqu...
ADVANTAGES OF SVM DTC
• When load is changed from no load to rated value,
torque changes to rated value with staring
trans...
ADVANTAGES OF DTC SVM
• Constant switching frequency SVM-
DTC schemes improve
• Therefore, SVM-DTC is an excellent• Theref...
ADVANTAGES OF DTC
• DTC strategy is used to control the
switching frequency.
• Harmonic distortion in the motor• Harmonic ...
ADVANTAGES OF
PROPOSED METHOD
• The number of switches are reduced.
• Switching losses are reduced.
• Harmonics are also r...
COMPARISON
CONVENTIONAL
METHOD
PROPOSED METHOD
•Exhibits torque ripples of
higher amplitude and
•Exhibits torque ripple
wh...
APPLICATIONS
• Fans, Compressor, Pumps, blowers,
machine tools like lathe, drilling machine,
lifts, conveyer belts etc.
31...
SIMULATION
madhumitha.santhiraj@gmail.com
32
ROTOR SPEED
33
madhumitha.santhiraj@gmail.com
STATOR CURRENT OUTPUT
34
madhumitha.santhiraj@gmail.com
MICROCONTROLLER
• PIC16F877A used
• 40 pin device
having five I/Ohaving five I/O
ports
• Have 8 A/D input
channels
• Paral...
TLP250 - DRIVER CIRCUIT
• TLP250 is an
opto isolated gate
driver
• 8−lead DIP• 8−lead DIP
package
• Fast gate
switching
36...
DRIVER CIRCUIT MODULE
37
madhumitha.santhiraj@gmail.com
PIC CONTROLLER
MODULE
38
madhumitha.santhiraj@gmail.com
INVERTER MODULE
39
madhumitha.santhiraj@gmail.com
HARDWARE CIRCUIT
U4
TLP250
2
81
6
5
7
3
4
U6
TLP250
2
81
6
5
7
3
4
U11
TLP250
2
81
6
5
7
3
4
U13
TLP250
2
81
6
5
7
3
4
1
M...
HARDWARE MODULE
41
madhumitha.santhiraj@gmail.com
REFERENCES
1] Takahashi, and T. Noguchi, “A new quick-response
and high-efficiency control strategy of an induction
motor,...
REFERENCES
3] A. Dey, B. Singh, D. Chandra, and B. Dwivedi, “A
novel approach to minimize torque ripples in DTC
induction ...
REFERENCES
4] L. Gao, J. E. Fletcher, and L. Zheng, “Low-speed control
improvements for a two-level five-phase inverter-fe...
REFERENCES
6] M. N. Uddin and M. Hafeez, “FLC-based DTC
scheme to improve the dynamic performance of an
IM drive,” IEEE Tr...
REFERENCES
8] Z. Zhifeng, T. Renyuyan, B. Boadong, and X.
Dexin, “Novel direct torque control based on
space vector modula...
THANK YOU
47madhumitha.santhiraj@gmail.com
Prochain SlideShare
Chargement dans…5
×

DIRECT TORQUE CONTROL OF THREE PHASE INDUCTION MOTOR USING FOUR SWITCH THREE PHASE INVERTER

DIRECT TORQUE CONTROL OF THREE PHASE INDUCTION MOTOR USING FOUR SWITCH THREE PHASE INVERTER-ME PROJECT 2014

  • Soyez le premier à commenter

DIRECT TORQUE CONTROL OF THREE PHASE INDUCTION MOTOR USING FOUR SWITCH THREE PHASE INVERTER

  1. 1. DIRECT TORQUE CONTROL OF 3 PHASE INDUCTION MOTOR USING 4 SWITCH INVERTER By: S.Madhumitha Reg no:311612415006-MNM Jain Engineering College,Chennai Guide: Prof.S.Muthurajan,M.E., M.B.A., Associate Professor/EEE 1madhumitha.santhiraj@gmail.com
  2. 2. OBJECTIVE Variable Speed control of three phase induction motor using a four switch inverter by Direct Torque Control.Control. 2madhumitha.santhiraj@gmail.com
  3. 3. LITERATURE SURVEY M.Azab and A.L.Orille IEEE Trans. Ind. Appl., vol. 22, no. 5, pp. 820-827, 2010. • “Novel Flux and torque control of induction motor drive using four switch inverter”inverter” • This strategy is penalized by low dynamic and high ripple of the torque. • The reason for this is due to the application of unbalanced voltage vector to control flux and torque. 3 madhumitha.santhiraj@gmail.com
  4. 4. LITERATURE SURVEY B.Bouzidi,B.EL.Basidi,A.Masmoudi, IEEE Trans. Magn., vol. 48, no. 8, pp. 3133–3136, Aug. 2011. • Investigation of the performance of a DTC strategy dedicated to the controlDTC strategy dedicated to the control induction motor drives”. • It has been noted that the drive performance remains relatively low due to the increase of the CPU time . 4madhumitha.santhiraj @gmail.com
  5. 5. LITERATURE SURVEY J.K.Kang, D.W.Chang and S.K.Sul,IEEE Trans.Power Electron.,vol.27,no. 5,pp. 2566- 2575,May 2012. • “Direct torque control of induction machine with variable amplitude control of flux and torque hysteresis bands”.torque hysteresis bands”. • The major drawback in this paper is uncontrolled switching frequency and high torque ripple resulting from the use of flux and torque hysteresis controllers. 5 madhumitha.santhiraj@gmail.com
  6. 6. LITERATURE SURVEY M. D. Hennen, M. Niessen, C. Heyers, H. J. Brauer, and R.W. DeDoncker, • “Development and control of an integrated and distributed inverter for a fault tolerant five- phase switched reluctance traction drive,” • A concept of an integrated and distributed• A concept of an integrated and distributed inverter for switched reluctance machines is introduced. The distribution is achieved by supplying each phase coil with its own modular inverter. Each inverter module is placed evenly around the end of the stator stack next to its dedicated coil. • The main drawback of this is increased losses and cost. 6madhumitha.santhiraj@gmail.com
  7. 7. EXISTING METHOD • The speed control of three phase induction motor from stator side are further classified as: • V / f control or frequency control • changing the number of stator poles • controlling supply voltage • adding rheostat in the stator circuit 7madhumitha.santhiraj@gmail.com
  8. 8. madhumitha.santhiraj@gmail.com 8
  9. 9. madhumitha.santhiraj@gmail.com 9
  10. 10. santhiraj.madhumitha@gmail.com 10
  11. 11. madhumitha.santhiraj@gmail.com 11
  12. 12. madhumitha.santhiraj@gmail.com 12
  13. 13. santhiraj.madhumitha@gmail.com 13
  14. 14. madhumitha.santhiraj@gmail.com 14
  15. 15. madhumitha.santhiraj@gmail.com 15
  16. 16. DISADVANTAGES OF EXISTING METHOD • Harmonic content in motor current increases at low speed. • The machine saturates at light loads due to high V/f ratio. • These effects overheat the machine at low speed. • Smooth speed control of induction motor is not possible. • The cost of the method is high but less efficient. 16madhumitha.santhiraj@gmail.com
  17. 17. PROPOSED METHOD • The speed control of induction motor is done using direct torque control with four switch three phase inverter. • The switching technique used is space• The switching technique used is space vector modulation technique. • The two phases are connected to the two legs of the inverter, while the third phase is connected to the mid point of the dc-bus voltage. 17 madhumitha.santhiraj@gmail.com
  18. 18. CONCEPTUAL DESIGN EXISTING METHOD PROPOSED METHOD madhumitha.santhiraj@gmail.com 18 HARDWARE FABRICATION MODULES TESTING SIMULATION BY MATLAB PIC 16 BIT CONTROLER MOSFET 4 SWITCH INVERTER EXISTING METHOD PROPOSED METHOD
  19. 19. BLOCK DIAGRAM 19 madhumitha.santhiraj@gmail.com
  20. 20. CIRCUIT DIAGRAM 20 madhumitha.santhiraj@gmail.com
  21. 21. SPACE VECTOR MODULATION • Technique to generate PWM load line voltages that are in average equal to a given load line voltage. 21 madhumitha.santhiraj@gmail.com
  22. 22. SPACE VECTORS GENERATED USING FSTPI •The four vectors are generated are unbalanced so in order to generate balance voltage vectors Vij the voltage vectors resulting from the sums of successive voltage vectors Vi and Vj is used.used. •This makes the operation of FSTPI similar to SSTPI. santhiraj.madhumitha@gmail.com 22
  23. 23. SPACE VECTOR MODULATION • The active voltage generated by SSTPI has a amplitude equal to • Where is the DC bus voltage • For the same value the FSTPI produces voltages with different amplitudedifferent amplitude • With and • Note that the voltage vector resulting from the sum of successive voltage vector and with and • can be expressed as follows, 23 madhumitha.santhiraj@gmail.com
  24. 24. DIRECT TORQUE CONTROL • Stator flux linkage is estimated by integrating the stator voltages. • Torque is estimated as a cross product of estimated stator fluxproduct of estimated stator flux linkage vector and measured motor current vector. • The estimated flux magnitude and torque are then compared with their reference values. 24 madhumitha.santhiraj@gmail.com
  25. 25. ADVANTAGES OF SVM DTC • SVM-DTC technique gives ripple free operation for entire speed range. • Improvement in flux, torque, speed response.response. • Response is fast and controller is robust like BASIC DTC • Switching frequency is high and controllable 25 madhumitha.santhiraj@gmail.com
  26. 26. ADVANTAGES OF SVM DTC • When load is changed from no load to rated value, torque changes to rated value with staring transients and ripples are less and 10 % variation from base torque value is observed.from base torque value is observed. • Speed attains its base value smoothly. • Ripples are less observed in stator flux only 4%variations from the reference flux value. • Ripples are less in stator phase currents. 26 madhumitha.santhiraj@gmail.com
  27. 27. ADVANTAGES OF DTC SVM • Constant switching frequency SVM- DTC schemes improve • Therefore, SVM-DTC is an excellent• Therefore, SVM-DTC is an excellent solution for general purpose IM drives in a very wide power range. 27 madhumitha.santhiraj@gmail.com
  28. 28. ADVANTAGES OF DTC • DTC strategy is used to control the switching frequency. • Harmonic distortion in the motor• Harmonic distortion in the motor phase current is reduced. • Inverter switching losses are reduced. 28 madhumitha.santhiraj@gmail.com
  29. 29. ADVANTAGES OF PROPOSED METHOD • The number of switches are reduced. • Switching losses are reduced. • Harmonics are also reduced. • The efficiency is increased. • Overall cost of the system is reduced. 29 madhumitha.santhiraj@gmail.com
  30. 30. COMPARISON CONVENTIONAL METHOD PROPOSED METHOD •Exhibits torque ripples of higher amplitude and •Exhibits torque ripple which has the lowesthigher amplitude and frequency. which has the lowest amplitude and frequency. •THD of Ias is equal to 17.4% •THD of Ias is equal to 11% •THD of Ics is equal to 14.6% •THD of Ics is equal to 12.5% 30 madhumitha.santhiraj@gmail.com
  31. 31. APPLICATIONS • Fans, Compressor, Pumps, blowers, machine tools like lathe, drilling machine, lifts, conveyer belts etc. 31 madhumitha.santhiraj@gmail.com
  32. 32. SIMULATION madhumitha.santhiraj@gmail.com 32
  33. 33. ROTOR SPEED 33 madhumitha.santhiraj@gmail.com
  34. 34. STATOR CURRENT OUTPUT 34 madhumitha.santhiraj@gmail.com
  35. 35. MICROCONTROLLER • PIC16F877A used • 40 pin device having five I/Ohaving five I/O ports • Have 8 A/D input channels • Parallel slave port is implemented 35 madhumitha.santhiraj@gmail.com
  36. 36. TLP250 - DRIVER CIRCUIT • TLP250 is an opto isolated gate driver • 8−lead DIP• 8−lead DIP package • Fast gate switching 36 madhumitha.santhiraj@gmail.com
  37. 37. DRIVER CIRCUIT MODULE 37 madhumitha.santhiraj@gmail.com
  38. 38. PIC CONTROLLER MODULE 38 madhumitha.santhiraj@gmail.com
  39. 39. INVERTER MODULE 39 madhumitha.santhiraj@gmail.com
  40. 40. HARDWARE CIRCUIT U4 TLP250 2 81 6 5 7 3 4 U6 TLP250 2 81 6 5 7 3 4 U11 TLP250 2 81 6 5 7 3 4 U13 TLP250 2 81 6 5 7 3 4 1 MOSFET DUAL G/N 4 MOSFET DUAL G/N 3 MOSFET DUAL G/N 6 MOSFET DUAL G/N BT1 BATTERY ELEM M ~3 MO1 MOTOR AC U7 PIC16F877A VDD 2 RB0 10 RB1 11 RB2 12 RB3 13 RB4 14 RB5 15 RB6 16 RB7 17 RC0 18 RC1 19 RC2 20 RC3 21 RC4 22 RC5 23 RC6 24 RC7 25 OSC2/CLKOUT 26 TOCKI 1 OSC1/CLKIN 27 MCLR 28 RA0 6 RA1 7 RA2 8 RA3 9 C1 CAPACITOR C2 CAPACITOR 40 madhumitha.santhiraj@gmail.com
  41. 41. HARDWARE MODULE 41 madhumitha.santhiraj@gmail.com
  42. 42. REFERENCES 1] Takahashi, and T. Noguchi, “A new quick-response and high-efficiency control strategy of an induction motor,” IEEE Trans. Ind. Appl., vol. 22, no. 5, pp. 820-827, 2012. 2] F. Khoucha, S.M.Lagoun, K. Marouani, A. Kheloui,2] F. Khoucha, S.M.Lagoun, K. Marouani, A. Kheloui, and M.E. H. Benbouzid, “Hybrid cascaded h-bridge multi level inverter induction-motor drive direct torque control for automotive applications,” IEEE Trans. Ind. Electron., vol. 57, no. 3, pp. 892-899, 2010. 42 madhumitha.santhiraj@gmail.com
  43. 43. REFERENCES 3] A. Dey, B. Singh, D. Chandra, and B. Dwivedi, “A novel approach to minimize torque ripples in DTC induction motor drive,” Proc. IEEE Int. Conf. Power, Control and Embedded SystemsPower, Control and Embedded Systems (ICPCES’10), pp. 1-6, Allahabad, India, November- December, 2010. 43 madhumitha.santhiraj@gmail.com
  44. 44. REFERENCES 4] L. Gao, J. E. Fletcher, and L. Zheng, “Low-speed control improvements for a two-level five-phase inverter-fed induction machine using classic direct torque control,” IEEE Trans. Ind. Electron., vol. 58, no. 7, pp. 2744-2754, 2011.Electron., vol. 58, no. 7, pp. 2744-2754, 2011. 5] A. Jidin, N. R. N. Idris, A. H. M. Yatim, T. Sutikno, and M. E. Elbuluk, “An optimized switching strategy for quick dynamic torque control in DTC-hysteresis-based induction machines,” IEEE Trans. Ind. Electron., vol. 58, no. 8, pp. 3391-3400, 2011 44 madhumitha.santhiraj@gmail.com
  45. 45. REFERENCES 6] M. N. Uddin and M. Hafeez, “FLC-based DTC scheme to improve the dynamic performance of an IM drive,” IEEE Trans. Ind. Appl., vol. 48, no. 2, pp. 823–831, Mar./Apr. 2012. 7] R. Wang, J. Zhao, and Y. Liu, “A comprehensive investigation of four switch three-phase voltageinvestigation of four switch three-phase voltage source inverter based on double fourier integral analysis,” IEEE Trans. Power Electron., vol. 26, no. 10, pp. 2774–2787,Oct. 2011. 45madhumitha.santhiraj@gmail.com
  46. 46. REFERENCES 8] Z. Zhifeng, T. Renyuyan, B. Boadong, and X. Dexin, “Novel direct torque control based on space vector modulation with adaptive stator flux observer for induction motors,” IEEE Trans. Magn., vol. 48, no. 8, pp. 3133–3136, Aug. 2010. 9] Y.Zhang and J. Zhu, “Direct torque control of permanent magnet motor with reduced torque ripple and commutation frequency” IEEE Trans. Power Electron., vol. 26, no. 1, pp. 235–248, Jan. 2011 46santhiraj.madhumitha@gmail.com
  47. 47. THANK YOU 47madhumitha.santhiraj@gmail.com

×