speed control of three phase induction motor using pwm ppt
Design and Implementation of a Three-Phase Induction Motor Control Scheme
... of the degree of Bachelor of Engineering (Honours) in the division of Electrical Engineering, I present the following thesis entitled “Design and Implementation of a Three- Phase Induction Motor ... a control strategy that varies the frequency and voltage of the signal applied to the windings of the induction motor, while controlling the flux created in the air-gap of the induction motor. ... outputs of an induction motor, we can use this motor controller to control an induction machine. ã TMS320F243 DSP controller. This is manufactured by the Texas Instruments Company and is one of...
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Báo cáo "Determining thermal expansion coefficients of three-phase fiber composite material reinforced by spherical particles " potx
... coefficients of three- phase composite material more than that of two - phase composite material in [7]. So, embedding spherical inclusions into continous matrix phase of two - phase fiber composite ... coefficients of matrix and particle phase. 2 3,K K: bulk moduli of matrix and particle phase. 2 2Gà=: shear modulus of matrix phase. 3ξ: volume fraction of particle phase. 2α: ... coefficients of three- phase composite material. This resembles case 3 when letting volume fraction of the fibre phase be constant and increasing step by step volume fraction of the particle phase. ...
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Báo cáo hóa học: " Diagnostic evaluation of three cardiac software packages using a consecutive group of patients" docx
... diag-nostic performance of the three software packages 4DM,ECTb, and QPS for quantification of MPS using a largegroup of consecutive patients. All MPS studies wereclassified by three physicians with ... 1:22http://www.ejnmmires.com/content/1/1/22Page 5 of 7 ORIGINAL RESEARCH Open AccessDiagnostic evaluation of three cardiac softwarepackages using a consecutive group of patientsLena Johansson1, Milan ... classifications, we used three veryFigure 1 Case illustration of three patients. The polar map for the 4DM software is shown at left, for the ECTb software at center, and for theQPS software at right....
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Prevention and Control of poultry diseases For better farm profitability pptx
... prevent and control diseasesIn decreased order of efficacyIn decreased order of efficacy1. Implementing Biosecurity2. Vaccination program3. MedicationOften we use these three in varies ... and spread of infectious diseases into and from a poultry farm.yBiosecurity requires the adoption of a set of attitudesBiosecurity requires the adoption of a set of attitudes ... exudatesexudatesexudatesexudates What are the costs of disease prevention & control What are the costs of disease prevention & control Yhldi tiYhldi tiYou should invest...
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Báo cáo hóa học: " Research Article Power-Constrained Fuzzy Logic Control of Video Streaming over a Wireless Interconnect" ppt
... 10−4.3.3. Fuzzy logic control A fuzzy subset is expressed as a set of rules which take theform of linguistic expressions. These rules express experience of tuning the controller and are captured ... power(normalized)Fuzzycontroller 1Fuzzycontroller 2Packettype?Non-scaled transmission countScaled transmission countI-picP-picB-picì5ì3ì2Figure 2: Overview of the FLC of ARQ system.3.4. Fuzzy logic control ... fullness00.51Degree of membership00.51Low Normal High(a)Normalized delay00.51Degree of membership00.51To o lo w l o w N o r m a l H i g h To o hi g h(b)Output of controller 100.51Degree of membership00.51To...
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Báo cáo nghiên cứu khoa học " Diagnosis and control of diarrhoea in suckling pigs - MS 2 " ppt
... improve speed and accuracy of laboratory diagnosis. The third part of the project seeks to improve the production and efficacy of locally-manufactured E. coli vaccines. In the first six months of ... (Diagnosis and control of diarrhoea in suckling pigs) began with three objectives to solve this problem: 1. Production and testing of locally-produced E. coli vaccines 2. Development of a management ... 12th to 30th 2005 a) Brisbane: Tour of University of Qld School of Veterinary Science, University of Qld Molecular Biosciences Precinct and Department of Primary Industry Toowoomba Veterinary...
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Physiological adaptability of three mangrove species to salt stress ppt
... to the activities of SOD (Figs. 6 Fig. 3 Effect of salinity on leaf transpiration rate of Sa, Sc and Rs Fig. 4 Effect of salinity on soluble sugar content in leaves of Sa, Sc and Rs ... 5 Effect of salinity on leaf membrance peroxidation in leaves, stems and roots of Sa Fig. 6 Effect of salinity on SOD activity in leaves, stems and roots of Sa Fig. 7 Effect of salinity ... research of Zhao[37] indicated that MDA content of the plant increased with the increase of salt concentration, whereas the activity of SOD and ATP enzyme reduced with the increase of salt...
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DC bus control of variable speed wind turbine using a buck boost converter
... : Algorithm of the proposed MPPT control method. Fig.7: Wind turbine output power without MPPT control method for low wind speed. Fig.8: Wind turbine output power with MPPT control method ... output power with MPPT control method at low wind speed. The use of the MPPT converter imposes a low DC bus voltage to recover the wind energy at the low winds speeds. PWM : d ‹— d0Measure ... Search rules of the various cases of operation are summarized in the table I. Fig.4. Operation modes of buck boost converter 2Unlike constant -speed control, a variable -speed control can...
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Tài liệu ime Control of a Three Phase 4 Wire PWM Inverter with Variable DC Link Voltage and Battery Storage for PV Application doc
... voltesult of the ccapacitor vow=2000Ω ) ats of the deae inverter cur due to loadgure 5 showsoltage of the Rv=20Ω , Rwynamic perfoage is quickcontrollable oltage of ... caseer of PV genrature and clition it is neV-I charactby the DC/Doal of the syh constant ampoint of the ue to load unand midpoins problem thding to load ar region of ... focontains the link voltage nk control isThe control odiscrete sysFiguretrol strategy s in [1], [2], or three phascurrent min control loops intended sif the VSI is stem...
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Báo cáo y học: "Control of hyperuricemia in subjects with refractory gout, and induction of antibody against poly(ethylene glycol) (PEG), in a phase I trial of subcutaneous PEGylated urate oxidase" potx
... course of oral pred-nisone. Six subjects developed gout flares during the 21-dayperiod of observation after injection of PEG-uricase.DiscussionEfficacy of PEG-uricaseIn this first phase I ... region of the chromatogram to calculate the amount (pmol) of 14C-labeled product formed. The rate of urate oxidation in milliunitsper ml of plasma is then calculated (1 unit = 1 àmol of urateoxidized ... http://arthritis-research.com/content/8/1/R12Page 1 of 10(page number not for citation purposes)Vol 8 No 1Research article Control of hyperuricemia in subjects with refractory gout, and induction of antibody against poly(ethylene...
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