speed control of 3 phase induction motor using vf ppt

... outputs of an induction motor, we can use this motor controller to control an induction machine. ã TMS320F2 43 DSP controller. This is manufactured by the Texas Instruments Company and is one of ... the induction motor s many advantages are clearly explained. Wildi also presents the two types of induction motors: “the squirrel cage induction motor and the “wound motor . An explanation of ... Design………………………………. 9 3. 1. The basic control format…………………………… 9 3. 2. The existing motor controller……………………… 10 3. 3. Current sensing module……………………………… 11 3. 4. The speed sensor……………………………………...

Ngày tải lên: 27/10/2013, 23:15

Ngày tải lên: 18/12/2013, 22:06

Ngày tải lên: 15/10/2013, 16:10

Ngày tải lên: 15/10/2013, 16:10

... Thêm R add nối tiếp cuộn dây phần ứng Example 1: Example 2: Example 3: nh lut Bio-Savart: nh lut Faraday: ( ) BlIeF r r r ì= () l.Bve r r r ì= ...

Ngày tải lên: 17/12/2013, 14:15

Ngày tải lên: 17/12/2013, 18:06

Ngày tải lên: 18/12/2013, 09:10

... 6,57 7,75 6, 73 5,56 - Experiment * 6,0 12 ,3 19,2 29,0 33 ,0 Analysis 6,5 13, 4 21,0 31 ,6 - 20%TiO 2 + 20%W800 + 60% AKAVINA polyester (sample type B) Error % 8 ,33 8,94 9 ,30 8,96 - Note: ... )            =+       ∂∂ ∂ + + ∂ ∂ + ∂ ∂ − ∂∂ ∂ ++ ∂ ∂ =+       ∂∂ ∂ + + ∂ ∂ + ∂ ∂ − ∂∂ ∂ ++ ∂ ∂ −= ∂ ∂ + ∂ ∂ 0 12 2 0 12 2 2 2 55 1 2 2 44 2 2 44 1 32 3 ,1 3 3 2 2 44 1 2 2 55 2 2 55 1 32 3 ,1 3 3 2 ψ ψψψ ϕ ϕϕϕ ψϕ I yxA DD xA D yA D I hyx w DD y w D I yxA DD yA D xA D I hyx w DD x w D hI z yx xyxyy yxy xyxyy yxx (3) ... bending deflection 3- phase composite Concentrate force Deflection (mm) 1kN 3kN 6kN 10kN Ultimate deflection Experiment * 7,6 14,2 20,8 32 ,4 34 ,3 Analysis 8,1 15 ,3 22,2 34 ,2 - 10%TiO 2 ...

Ngày tải lên: 14/03/2014, 13:20

... )            =+       ∂∂ ∂ + + ∂ ∂ + ∂ ∂ − ∂∂ ∂ ++ ∂ ∂ =+       ∂∂ ∂ + + ∂ ∂ + ∂ ∂ − ∂∂ ∂ ++ ∂ ∂ −= ∂ ∂ + ∂ ∂ 0 12 2 0 12 2 2 2 55 1 2 2 44 2 2 44 1 32 3 ,1 3 3 2 2 44 1 2 2 55 2 2 55 1 32 3 ,1 3 3 2 ψ ψψψ ϕ ϕϕϕ ψϕ I yxA DD xA D yA D I hyx w DD y w D I yxA DD yA D xA D I hyx w DD x w D hI z yx xyxyy yxy xyxyy yxx (3) N.D. Duc, ... modules for 3- phase composite plate The elastic modules for 3- phase composite are calculated step by step by 2 -phase model as in [5,6,8]. We also carried out the experiments for 3- phase composite’s ... elastic modules for 3- phase composite with different volume ratio of fiber and particle. Our purpose in this paper is to continue the experiments, for the bending of 3- phase composite plates...

Ngày tải lên: 21/07/2014, 16:21

... segregation & traffic control, cleaning and disinfection are the 3 1. segregation & traffic control, cleaning and disinfection are the 3 elements of biosecurity.elements of biosecurity. atrue ... you can prevent and control diseases In decreased order of efficacy In decreased order of efficacy 1. Implementing Biosecurity 2. Vaccination program 3. Medication Often we use these three ... and spread of infectious diseases into and from a poultr y farm. y Biosecurity requires the adoption of a set of attitudes Biosecurity requires the adoption of a set of attitudes ...

Ngày tải lên: 23/03/2014, 21:20

... ARQ News 32 .22 31 .12 31 .45 30 .05 31 .18 28.78 30 .19 27.56 29.29 25 .33 Football 31 .32 29.91 30 .85 28.81 30 .01 27.55 28.95 26 .31 28.19 24.88 Friends 31 .88 30 .09 30 .94 28.94 30 .14 27.77 29 .32 26.67 28 .34 ... 28 .34 24.29 Italian job 30 .97 30 .41 30 .39 29.01 30 .02 27.62 29.19 26.55 28.45 24.09 4 .3. Detailed comparison of video quality As an illustrative example of the fluctuations of video quality over ... “Fuzzy sets,” Information and Control, vol. 8, no. 3, pp. 33 8 35 3, 1965. [15] H. Takagi, Application of Neural Networks and Fuzzy Logic to Consumer Products, vol. 1 of IEEE Technology Updates Series: Fuzzy...

Ngày tải lên: 21/06/2014, 22:20

... 2005 Contact Officer(s) In Australia: Team Leader Name: Dr Darren Trott Telephone: 617 33 6 52985 Position: Senior Lecturer School of Veterinary Science Fax: 617 33 6 5 135 5 Organisation ... scientists March 12 th to 30 th 2005 a) Brisbane: Tour of University of Qld School of Veterinary Science, University of Qld Molecular Biosciences Precinct and Department of Primary Industry Toowoomba ... principal causes of preweaning diarrhoea to improve speed and accuracy of laboratory diagnosis. The third part of the project seeks to improve the production and efficacy of locally-manufactured...

Ngày tải lên: 22/06/2014, 12:20

... knowledge of dynamic be- havior of the car and “maneuvers” as stereotypical control sequences can be. 3. 4 .3 Basic Modes of Control Defining Skills In general, there are two components of control ... direc- tion, the control time history input displayed in Figure 3. 13 is one of a generic class of realizations. It has three phases with constant steering rate, two of the same O cg a Figure 3. 15. Frictional ... F EE OO (3. 33) From the center of Figure 3. 23, it can be seen that trajectory heading Ȥ is the sum of vehicle body heading ȥ and side slip angle ȕ (Ȥ = ȥ + ȕ) and thus ///ddtddtddt.  F \E (3. 34)...

Ngày tải lên: 10/08/2014, 02:20

... k Center of pixel (1, 1) in (mel in Q4 with average mel–intensity I 22 ) 0 = origin of mask -4 -3 -2 -1 0 1 2 3 4 -4 -3 -2 -1 0 1 2 3 4 Mask with mask element mel = 4ì4 Mask with mask elements 3 ... these half-stripes of stripe 2 are stored for reuse in stripe 3 1 Half- stripe Stripe ‘C2’ Stripe ‘C1’ Stripe ‘C3’ Center points of mel regions Stripe ‘C4’ 1 2 3 4 5 Number of half- stripe Image ... (see Section 5 .3. 2.1), (2) edges from extreme values of gradients in the search di- rection (see Section 5 .3. 2 .3) , (3) homogeneous segments with planar shading mod- 5 Extraction of Visual Features...

Ngày tải lên: 10/08/2014, 02:20

... motion of 3- D objects in 3- D space to the motion of groups of features in images from dif- ferent cameras. So the difficult task after basic feature extraction is to find combinations of fea- tures ... r-vector of control variables, z(t) an n-vector of disturbances, and p s a vector of parameters of the system, usually, cannot be measured directly but only through an m-vector y(t k ) of output ... beginning of the recog- nition process after detection. 5.4 Statistics of Photometric Properties of Images According to the results of planar shading models (Section 5 .3. 2.4), a host of in- formation...

Ngày tải lên: 10/08/2014, 02:20

Ngày tải lên: 10/08/2014, 02:20

... : 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 ... Search rules of the various cases of operation are summarized in the table I. Fi g.4. Operation modes of buck boost converter 2 Unlike constant -speed control, a variable -speed control can ... method for low wind speed. Fig. 9 and 10 give the wind turbine output power without and with MPPT control method for high wind speed. The impact of the proposed MPPT control method used...

Ngày tải lên: 03/01/2014, 19:15