Skip to main content

Stretch the dynamic range of the given 8-bit grayscale image using MATL...

Post a Comment

Simulink asynchronous generator voltage input clarification

 Hi there.

 
I've found a lot of models on simulink of DFIG's using the simscape 'asynchronous machine block'. The left side of the machine with "Tm, A, B, C" inputs represents the stator side.
 
When the machine is operating as a generator why is it that we supply a voltage to the stator, this doesn't really make sense to me as the stator is producing active power fed to the grid/load. In operation as a machine it makes sense however.
 
I also undertsnd that the rotor requires an input current for magnetisation and therefore to induce a voltage.
 
Could anyone possible clarify why is it that there is a voltage fed to the stator when operating as a generator as conceptually I don't understand it. Any response would be greatly appreciated.

ANSWER


Matlabsolutions.com provide latest MatLab Homework Help,MatLab Assignment Help for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed. Get MATLAB projects with source code for your learning and research.

Hi ,
 
For an induction machine to operate, you must be able to generate a rotating field on both the rotor and stator. The fields couple through the air gap, giving you power transmission through torque and speed. The machine cares less about the direction of power travel than you'd expect!
 
The connections from Simscape set up both voltage and current constraints for the underlying electrical net. The machine itself appears to the network essentially as a grouping of inductors and speed-dependent source terms. So by connecting the speed, torque, and electrical terminals, Simscape is constructing a circuit network where it simultaneously solves for all the voltages and currents that make a consistent operating point and satisfy the power/speed inputs, too. If it helps, you can think of Simscape networks operating a little more like SPICE than an explicit ODE solver.
 
Contrast this with a purely Simulink driven system, where you'd generally begin by formulating the machine equations to solve for the output of the flux linkage differential equations dLambda/dt in dynamic operation

  SEE COMPLETE ANSWER CLICK THE LINK

Comments

Post a Comment

Popular posts from this blog

https://journals.worldnomads.com/scholarships/story/70330/Worldwide/Dat-shares-his-photos-from-Bhutan https://www.blogger.com/comment.g?blogID=441349916452722960&postID=9118208214656837886&page=2&token=1554200958385 https://todaysinspiration.blogspot.com/2016/08/lp-have-look-at-this-this-is-from.html?showComment=1554201056566#c578424769512920148 https://behaviorpsych.blogspot.com/p/goal-bank.html?showComment=1554201200695 https://billlumaye.blogspot.com/2012/10/tagg-romney-drops-by-bill-show.html?showComment=1550657710334#c7928008051819098612 http://blog.phdays.com/2014/07/review-of-waf-bypass-tasks.html?showComment=1554201301305#c6351671948289526101 http://www.readyshelby.org/blog/gifts-of-preparedness/#comment_form http://www.hanabilkova.svet-stranek.cz/nakup/ http://www.23hq.com/shailendrasingh/photo/21681053 http://blogs.stlawu.edu/jbpcultureandmedia/2013/11/18/blog-entry-10-guns-as-free-speech/comment-page-1443/#comment-198345 https://journals.worldnomads.com
6 comments
Read more

USING MACHINE LEARNING CLASSIFICATION ALGORITHMS FOR DETECTING SPAM AND NON-SPAM EMAILS

    ABSTRACT We know the increasing volume of unwanted volume of emails as spam. As per statistical analysis 40% of all messages are spam which about 15.4 billion email for every day and that cost web clients about $355 million every year. Spammers to use a few dubious techniques to defeat the filtering strategies like utilizing irregular sender addresses or potentially add irregular characters to the start or the finish of the message subject line. A particular calculation is at that point used to take in the order rules from these email messages. Machine learning has been contemplated and there are loads of calculations can be used in email filtering. To classify these mails as spam and non-spam mails implementation of machine learning algorithm  such as KNN, SVM, Bayesian classification  and ANN  to develop better filtering tool.   Contents ABSTRACT 2 1. INTRODUCTION 4 1.1 Objective : 5 2. Literature Review 5 2.1. Existing Machine learning technique. 6 2.2 Existing
Post a Comment
Read more

Why are Fourier series important? Are there any real life applications of Fourier series?

A  Fourier series  is a way of representing a periodic function as a (possibly infinite) sum of sine and cosine functions. It is analogous to a Taylor series, which represents functions as possibly infinite sums of monomial terms. A sawtooth wave represented by a successively larger sum of trigonometric terms. For functions that are not periodic, the Fourier series is replaced by the Fourier transform. For functions of two variables that are periodic in both variables, the trigonometric basis in the Fourier series is replaced by the spherical harmonics. The Fourier series, as well as its generalizations, are essential throughout the physical sciences since the trigonometric functions are eigenfunctions of the Laplacian, which appears in many physical equations. Real-life applications: Signal Processing . It may be the best application of Fourier analysis. Approximation Theory . We use Fourier series to write a function as a trigonometric polynomial. Control Theory . The F
3 comments
Read more