tổng quan về đề tài 5

... inverter (VSI) xiii 4 35 4 35 4 35 440 444 447 447 451 456 457 458 459 459 460 4 65 471 471 473 4 75 476 482 487 487 487 489 491 491 496 499 50 0 50 3 50 5 51 2 xiv Contents 12.2.1 Theory of operation 12.2.2 ... frequency control 12 .5 Problems Appendix General expressions for Fourier series Answers to problems References and bibliography Index 51 2 51 4 51 6 51 6 51 6 51 8 52 0 52 3 52 5 53 1 53 6 PREFACE to the ... 8.3.4.4 Electromagnetic interference 8.3.4 .5 Supply voltage dip 8.3 .5 Worked examples 8.4 Problems xi 2 45 246 250 254 254 256 259 261 2 65 2 65 271 2 75 280 281 281 286 288 288 291 292 296 303 304...

Ngày tải lên: 29/04/2016, 09:46

... pp 137-144, 2001 [5] T M Rowan and T A Lipo, "Quantitative analysis of induction motor performane improvement by scr voltage control," IEEE Trans Ind Appl., vol 19, No pp 54 5 -55 3, 1983 [6] C F ... Voltage Current Active power Apparent power Power factor No.1 434 .5 V 9.37 A 5. 11 kW 7. 05 kVA 0.7 25 (in lead) No.1 + No.2 434 .5 V 13.16 A 9.93 kW 9.93 kVA 0.999 (in lag) pensated induction motor ... limited to: TOKYO INSTITUTE OF TECHNOLOGY Downloaded on November 25, 2008 at 23:44 from IEEE Xplore Restrictions apply 400V MERS 5. 5kW Fan r 800 Capacitor voltage 400 rn l a, I I -lUvo 30 ql In...

Ngày tải lên: 15/10/2013, 16:10

... , Ä Ö SVC MERS - dc capacitor, C - filter inductor, L Parameters 5- kVA 200V 1-kW 200V 50 Hz 1 .5- kW 200V 50 Hz 1.337 ª 0.713 ª 3. 85 mH 110 F 10 mH Fig 10 SVC MERS modules and inverter for speed control ... INSTITUTE OF TECHNOLOGY Downloaded on November 25, 2008 at 23: 45 from IEEE Xplore Restrictions apply S1,S3 ON Voltage (V) 250 δ S2,S4 ON VLL Vdc Vshunt − 250 20 40 Fig 0 −4 20 Time (ms) S1, S3 ON Voltage ... (c) 160uF 150 uF Voltage (Volt) 200 Vln 140uF 130uF 120uF 110uF 150 −1 100 Ishunt 0 50 0 1000 −1 Vdc capacitor Effect of excitation capacitor 0 .5 isolated or stand-alone condition,...

Ngày tải lên: 15/10/2013, 16:10

... Unit kg kg kg kg kg kg MJ Quantity 10.6 0. 158 0.0 25 0.00 15 0.003 0.036 MJ g g g g mg mg mg mg mg mg mg 4.09 151 5 679 839 8249 33 35 333 167 83 167 0.0000017 ISSN 2076-28 95 (Print), ISSN 2076-2909 ... Output Electricity exhaust gases water ash Unit t t Sm3 t m3 km Quantity 0 .54 09 75 0.3423 15 4224 0.001 0.1 1. 35 MWh t m3 t 0.7964 65 0.09 756 1 0.088329 In the energy plant, the low process temperature ... pp .54 1 -55 2 54 5 Table Input-output table of the drying process per kg of the dry pomace Input Virgin pomace Fuel Electricity Output Steam Exhaust gases Ash Dry pomace Unit kg kg kWh Quantity 0.15...

Ngày tải lên: 05/09/2013, 16:10

... IAS Annual Meeting, 20 05 Authorized licensed use limited to: TOKYO INSTITUTE OF TECHNOLOGY Downloaded on November 25, 2008 at 23:27 from IEEE Xplore Restrictions apply  [5] T Takaku, G Homma, ... switch IPEC-Niigata 20 05, 20 05 [6] E K Shelton The series capacitor installation at ballston General Electric Review, 31:432–434, 1928 [7] M C Hall and D A Hodges Experience with 50 0kv subsynchronous ... 25, 2008 at 23:27 from IEEE Xplore Restrictions apply Figure 4: Configuration of experimental set-up used to study the use of MERS for controlling light intensity of fluorescent lamps Figure 5: ...

Ngày tải lên: 15/10/2013, 16:10

... = 5. 7 A Voltage (V) Rated voltage Vn Rated current In Frequency fn Pole Armature resistance Synchronous reactance Xs Excitation resistance Rf Phase current (A) 10 130.6 V 5. 5 A 87 .5 Hz 1 .55 Ω ... Conference, Apr 2000, no 3, pp 151 9– 152 4 [2] T Takaku et al: “Automatic Power Factor Correction Using Magnetic Energy Recovery Switch,” in Proc I E E Japan, vol 1 25- D, no 4, 20 05 (in Japanese) [3] T Takaku ... voltage VC is 51 .3 V The voltage drop across the synchronous reactance is compensated by this capacitor voltage and the output voltage Vdc is increased 2010 0-7803-9208-6/ 05/ $20.00 © 20 05 IEEE 200...

Ngày tải lên: 15/10/2013, 16:11

... ratinig ~~IGBT current rating (a) 50 kW 306 V 50 Hz 116 4 .5 Cm4H 0.18 Q 1200 V 150 A (b) Figure 5: Picture of experimental set-up Induction motor is driving a multi-pole 50 kW PM through a gear Generator ... TOKYO INSTITUTE OF TECHNOLOGY Downloaded on November 25, 2008 at 23 :56 from IEEE Xplore Restrictions apply > 50 0 A Vdc= 355 V * Vdc=370V * Vdc=385V * Vdc=400V MERS> Control C) - ,rDc-voltage p C y,/Generator ... INSTITUTE OF TECHNOLOGY Downloaded on November 25, 2008 at 23 :56 from IEEE Xplore Restrictions apply ~ 150 - > - o1000 11001-c10 w 150 Estimated Measured 50 - C- L 0~~~~~~~~~~~~~~ MERS IGBTs , 7' +...

Ngày tải lên: 15/10/2013, 16:11

... regeneration using P-MOSFETs,” in Proc International Power Electronics Conference, Apr 2000, no 3, pp 151 9– 152 4 Authorized licensed use limited to: TOKYO INSTITUTE OF TECHNOLOGY Downloaded on November ... mH, R = 0:2 , f = 20 Hz Fig Experimental waveforms of current pulses generation C = 0:1 F, L = 1 75 H, R = 3:0 , f = kHz Experimental waveforms of voltage and current controlled by PWM V = 10 V, ... by parallel The time (4) where is the number of stage The voltage capacitor is charged in one (5) Next, if switches are turned on, capacitors are discharged in series and the voltage of capacitors...

Ngày tải lên: 15/10/2013, 16:11

... November 25, 2008 at 23: 45 from IEEE Xplore Restrictions apply 1 Vcrinrrf W 01 I X7,ref I I Q /I a) = 0 .5 cn a) a) ,51 0 cn H, (~~~~~~ mit 10% lir ,,

Ngày tải lên: 15/10/2013, 16:12

... (MERS) to improve output power of wind turbine,” in Proc 20 05 Int Power Electronics Conf (IPEC-Niigata 20 05) , 20 05, pp 1280–12 85 [5] J Narushima, K Inoue, T Takaku, T Isobe, T Kitahara, and R ... correction,” in Proc 20 05 Int Power Electronics Conf (IPEC-Niigata 20 05) , 20 05, pp 737–743 Authorized licensed use limited to: TOKYO INSTITUTE OF TECHNOLOGY Downloaded on November 25, 2008 at 23:44 ... November 25, 2008 at 23:44 from IEEE Xplore Restrictions apply 1648 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, VOL 16, NO 2, JUNE 2006 while is the resistance of the circuit From (5) and (6),...

Ngày tải lên: 15/10/2013, 16:12

... Rountine………… 55 7 .5 A/D conversion…………………………………… 57 7.6 Concluding remarks……………………………… 58 Chapter – Final Project Performance and Evaluation…… 59 8.1 PWM test program……………………………… 59 8.2 Encoder ... (FOC)…………………… 19 5. 1 An introduction…………………………………… 19 5. 2 Transformation between reference frames………… 20 5. 3 The PI controller…………………………………… 21 5. 4 PWM – Pulse-Width Modulation………………… 22 5. 5 The Overall ... Figure 5. 1 – The transformation of the stationary reference frame to the rotating reference frame Figure 5. 2 – The PI controller Figure 5. 3 – Leg A of the full-bridge inverter Figure 5. 4 – PWM...

Ngày tải lên: 27/10/2013, 23:15

... 0.9(60 Hz ) = 54 Hz The harmonics occur at: m f ( f1 ) = (1)(47) (54 ) = 2 .53 8kHz 3m f ( f1 ) = (3)(47) (54 ) = 7.614kHz 5m f ( f1 ) = (5) (47) (54 ) = 12.69kHz as shown in Fig.14 below 54 Hz 2 .5 kHz 7.6 ... proportion to the fundamental frequency For example (for a 75 Hz, 150 Vrms maximum operation), if the fundamental frequency reduces to 80% from 75 Hz to 60 Hz, then ma should be 80 in order to maintain ... controls is shown in Fig .5 below: AC MOTOR CONTROLLER PAGE APRIL 26, 2000 Fig .5 Power transistor (IGBT) that does the switching in the inverter The gate is turned on by applying 15 Vdc to G Current...

Ngày tải lên: 17/12/2013, 18:06

... Axes Transformation 48 CONCLUSIONS 54 IV | P a g e REFERENCES 55 APPENDICES 56 Appendix 1: MATLAB Code for Speed Control of 3- Induction ... Figure 3. 25: Torque-Speed Characteristics for machine parameters as in Fig 3.20 21 | P a g e Simulation and Speed Control of Induction Motor Drives 2012 3 .5 High Rotor Resistance (~0 .5 ) 0 .50 03 Figure ... Figure 4 .5: Input Data (Machine details) for Closed loop Constant V/f Speed Control Method Figure 4.6 Torque-Speed Characteristics with Starting Load Torque 1 .5 Nm and Reference Speed 50 0 rpm...

Ngày tải lên: 18/12/2013, 22:06

... states for the four regions in sector A (a) Region ( = 30 ) (b) Region ( = 15 ) (c) Region ( = 30 ) (d) Region ( = 45 ) tioned above, each phase output signal is resolved into and pairs of component ... reach the saturation level symmetrical but are opposite in phase Fig shows the similar plots of (5) and (6) in mode which are at higher voltages Note that the curves are not symmetrical because ... UP/DOWN counter and processed through a logic block to generate the PWM outputs for for for for for (5) for for for for for for for for for for (6) for for for for for 664 IEEE TRANSACTIONS ON INDUSTRY...

Ngày tải lên: 22/12/2013, 08:16

... Qingdao 266071, China Tel: 86 -53 2 -50 27 355 Fax: 86 -53 2 -50 272 05 Toronto 62 85 Northam Drive, Suite 108 Mississauga, Ontario L4V 1X5, Canada Tel: 9 05- 673-0699 Fax: 9 05- 673- 650 9 India Divyasree Chambers ... Shunde City, Guangdong 52 8303, China Tel: 86-7 65- 83 955 07 Fax: 86-7 65- 83 955 71 San Jose China - Qingdao 1300 Terra Bella Avenue Mountain View, CA 94043 Tel: 650 -2 15- 1444 Rm B505A, Fullhope Plaza, ... Tel: 61-2-9868-6733 Fax: 61-2-9868-6 755 168-1, Youngbo Bldg Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 1 35- 882 Tel: 82-2 -55 4-7200 Fax: 82-2 -55 8 -59 32 or 82-2 -55 8 -59 34 Atlanta Unit 706B Wan Tai Bei...

Ngày tải lên: 25/01/2014, 13:20

... V0 V5 V3 V0 V1 V4 V7 V6 V4 V7 V2 V5 V0 V1 V5 V0 V3 V6 V7 V2 V6 V7 V4 V1 V0 V3 V1 V0 V5 V2 V7 V4 Figure 13.8-3.  Step response of an induction motor with DTC Slip Energy Recovery Drives  53 5 it ... Figure 13 .5- 1, which calculates both the position of the synchronous reference frame as well as the d-axis flux linkage This is based directly on (13 .5- 7), (13 .5- 8), (13 .5- 2), and (13 .5- 3), with ... (13 .5- 4) Therefore, iqrs = ′ s λqm − LM iqs ′s LM (13 .5- 5) Recall that the q-axis rotor flux linkages may be expressed as s λqrs = Llr iqrs + LM (iqs + iqrs ) ′ ′ ′ (13 .5- 6) Substitution of (13 .5- 5)...

Ngày tải lên: 16/02/2014, 18:54

... current ii Mode 5 1 2 3 4 5 6 0 Figure 4 6 1 2 3 4 5 6 0 6 4 5 6 0 5 4 5 6 0 5 1 2 3 4 5 6 0 6 1 2 3 4 5 6 0 6 4 5 6 1 2 3 0 3 4 5 6 1 2 3 0 3 1 4 5 6 0 4 6 4 5 6 0 4 4 5 6 1 2 3 0 5 4 5 6 1 2 3 0 ... 15 16 17 18 19 20 21 22 23 24 25 26 27 Figure iC iB 240° 120° 6 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 iA 60° 6 5 0 6 6 5 0 360° 180° 6 6 5 0 3 6 5 0 6 6 5 0 5 6 0 5 6 0 300° 5 ... 5 6 0 5 6 0 300° 5 5 6 0 5 6 0 6 5 6 0 6 5 6 0 6 5 0 Sector of input current as function of mode and section of output current [6] vector is in the section between 120° and 150 °, switch configurations...

Ngày tải lên: 13/05/2014, 00:55

... 23 .5 21.3 18.4 19.2 20.1 Microclimate Moisture (%) 66.9 65. 3 67.9 74.2 75. 3 77.4 74.2 78.3 75. 6 Wind velocity (m/s) 0.12 0. 15 0.14 0.17 0.11 0. 15 0.11 0.12 0. 15 CH4 (%) CO2 (%) 57 .6 56 .2 55 .2 55 .2 ... power plant is: -[(1*22-4283*0. 759 /1000)+4283*0 .5/ 1000]*28.88*3 65* 20 -[(1*22 -56 95* 0 .53 8/1000) +56 95* 0 .5/ 1000]*28.88*3 65* 20 = - 4.6 million tons (CO2 equivalent) = - 2. 35 billion m3 (CO2 equivalent) ... material 72.6 0.02 25 3.047 4.099 Construction phase 5. 59 0.0016 0.234 0.297 Operational phase 2307.7 0 .51 3 96.7 95. 3 Decommissioning phase -0.046 0.0016 -0.0019 0.3 055 Total 23 85. 8 0 .53 8 Phases Table...

Ngày tải lên: 06/08/2014, 18:22

... 23 .5 21.3 18.4 19.2 20.1 Microclimate Moisture (%) 66.9 65. 3 67.9 74.2 75. 3 77.4 74.2 78.3 75. 6 Wind velocity (m/s) 0.12 0. 15 0.14 0.17 0.11 0. 15 0.11 0.12 0. 15 CH4 (%) CO2 (%) 57 .6 56 .2 55 .2 55 .2 ... power plant is: -[(1*22-4283*0. 759 /1000)+4283*0 .5/ 1000]*28.88*3 65* 20 -[(1*22 -56 95* 0 .53 8/1000) +56 95* 0 .5/ 1000]*28.88*3 65* 20 = - 4.6 million tons (CO2 equivalent) = - 2. 35 billion m3 (CO2 equivalent) ... material 72.6 0.02 25 3.047 4.099 Construction phase 5. 59 0.0016 0.234 0.297 Operational phase 2307.7 0 .51 3 96.7 95. 3 Decommissioning phase -0.046 0.0016 -0.0019 0.3 055 Total 23 85. 8 0 .53 8 Phases Table...

Ngày tải lên: 06/08/2014, 18:22