Phase Inversion

The program computes phase envelopes for two binary mixtures containing ethane and benzene (20 % ethane and 80 % benzene; 70 % ethane and 30 % benzene). This binary system exhibits a peculiar behavior called retrograde condensation (e.g. We get condensation as we increase the temperature or...

Active Power , Reactive Power & Power Factor in Three Phase System can be measured by this simulink model.Connect Vabc and Iabc to the first block and enjoy!

PGPI(NUM,DEN,W,FI,A) plots the stability boundary locus L(KP,KI,W)in the (KP,KI)-plane for an LTI system with transfer function defined by its NUM, DEN coefficients and driven by a PI controller with transfer function, C(s)=kp+(ki/s). Frequency (W) gridding becomes important. Phase Margin, FI,...


Platforms: Matlab

This is a simple method to convert Single-Phase to Three-Phase with minimum number of switches for low power applications.Check the output currents and voltages.Reference title is included in this submission


Platforms: Matlab

SPWM technique for Three Phase Inverter. Analysis fundamental improvement with respect to modulation index variation is done in simulation. Analysis can be done also for switching frequency variation for shifting the dominant harmonics


Platforms: Matlab

This function allows one to calculate the Fourier transform of a chirped function evaluated at specific points using the stationary phase approximation.Imagine a pulse with a large time-bandwidth produce: this would require a large amount of data points in order to evaluate the Fourier transform....


Platforms: Matlab

This package contains three files:pptime.m : main file, makes a colored phase plot. Color represents time.pptime_demo.m : demo file, run first in order to see how the program workspend1.m : odefun for damped nonlinear pendulum modeWritten and tested in Matlab R14SP2


Platforms: Matlab

Single-Phase half-controlled bridge rectifier(ALPHA=120)


Platforms: Matlab

Inversion of Laplace transforms is a very important procedure used in solution of complex linear systems.The function f(t)=INVLAP(F(s)) offers a simple, effective and reasonably accurate way to achieve the result. It is based on the paper:J. Valsa and L. Brancik: Approximate Formulae for...


Platforms: Matlab

This model simulates three phase induction motor model in rotor frame of reference.It is helpful in simulation of induction motor drives.Electrical system equations:Vs = Rs is + (1/wb) (dfs/dt) + wf M(pi/2) fswhere the variables is, vs, and fs are 2-dimensional space vectors and M(pi/2)...


Platforms: Matlab

Its the 3 phase inverter build using GTOs.Power Elctronics engineering Beginners can be easily acquainted in simulink with this file


Platforms: Matlab

The model simulates the three phase inverter with space vector pulse width modulation. The SVPWM idea has been used from the Matlab drive library.


Platforms: Matlab

An efficient algorithm for identification of strong polarity-inversion line (SPIL) on Solar Dynamic Observatory (SDO) Helioseismic and Magnetic Imager (HMI) magnetograms.Detailed description will appear in the paper: Volobuev, D.M. StrongPolarity-Inversion Line Preceding X-class Flare, Solar...


Platforms: Matlab

Phase information is used for matching the input imagery with the template. Both the images are filtered with canny edge detector. The timing efficiency is introduced by implementing skipping steps while doing correlation. The advantage of Phase based correlation technique is that it shows good...


Platforms: Matlab

The numerical inversion of the Laplace transform is a long standing problem due its implicit ill-posedness. These functions implement one of the more well known numerical inversion algorithms, the Weeks method. Particularly new here is the use of graphics processing unit [GPU] computing to...


Platforms: Matlab

This method implements a phase-based Opictal Flow Algorithm described in:Gautama, T. and Van Hulle, M.M. (2002). A Phase-based Approach to the Estimation of the Optical Flow Field Using Spatial Filtering.IEEE Trans. Neural Networks, 13(5),...


Platforms: Matlab

This demo illustrates use of both SimPowerSystems and Simscape to model a On-Load Tap Changing (OLTC) 120/25 kV transformer regulating voltage on a three-phase 25-kV distribution network.The demo is similar to the power_OLTCregtransformer demo of SimPowerSystems. However, instead of using...


Platforms: Matlab

This is a demo program of the paper "Phase-driven spatially-variant regularization for image resolution enhancement," International Journal of Electronics and Communications, Vol. 65, No. 11, Nov. 2011, pp. 975-977.


Platforms: Matlab

This package provides implementations of several spectral (FFT,DCT)saliency algorithms for images.There are several methods (multichannel_method) to calculate themultichannel saliency:'fft': by default the same as 'fft:whitening''fft:whitening' Uses spectral whitening to calculate the saliency of...


Platforms: Matlab

This demonstration illustrates the use of a complex space vector to represent a three-phase signal . It also shows the transformation of the 3-phase signal 'ABC' into an equivalent 2-phase system 'alpha_beta'. The only restriction to the 3-phase signal is that the zero-sequence component is zero...


Platforms: Matlab