Answered
Why the power of PV arrays gives low values? Simscape system
Hi @Ahmed Abdel Salam, The array is configured as an 8x5 grid, but the irradiance for cells (1,1) and (1,2) is not properly con...

3 months ago | 0

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Answered
Spectrum vs P-welch in log-scale
Hi Hyung, The `spectrum` and `pwelch` functions both calculate the power spectral density of a signal. However, the `pwelch` fu...

3 months ago | 0

Answered
Low Pass Active filter for harmonic mitigation in three phase system.
Hi @James, Harmonics can be effectively removed using low-pass filters (LPF). While 'L' filters, which are first-order low-pass...

3 months ago | 0

Answered
Fill function produces unexpected results
Hi @David Breitenmoser, The issue is occurring while filling the ‘ytot3' data because the difference between the upper and lowe...

4 months ago | 0

Answered
wavelet-based filter
Hi @Faraxen, The issue arises because the 'cA' matrix, which contains the approximate coefficients, has incorrect dimensions c...

4 months ago | 0

Answered
vector output of a symbolic vector
Hi @Lóránt Farkas, The issue stems from the “partfrac” function, which is configured to accept only a single output argument. T...

4 months ago | 0

Answered
Generating the contraction section of a CD Nozzle
Hi @Bamelari Jovani, The issue arises because of the negative value of 'c' causing the downstream and upstream quartic sections...

4 months ago | 0

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Answered
Specification of the saturation characteristic for the model of the saturable transformer (Simulink Simscape Electrical - Specialized Power Systems)
Hi @Torben, The "Saturable Transformer" utilizes the flux and magnetization current (`Im`) flowing through the inductor (`L_sat...

4 months ago | 0

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Answered
How to change output voltage of PV array when i have random function as input of PV array?
Hi Marko, The output voltage of the “PV Array” block is measured across the shunt resistance “R_sh_5%” connected in parallel wi...

4 months ago | 0

Answered
How to create an LC parametric attenuation circuit in simulink.
Hi @光希, The LC attenuator here uses a variable capacitor so the concept of steady state capacitance which states Q = CV is app...

4 months ago | 0

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Answered
Time-frequency spectrum for a low frequency signal
Hi @Océane ESPINASSE, The continuous wavelet transform requires few cycles of a signal to accurately determine its frequency co...

4 months ago | 0

Answered
Simulation Time in Simulink
Hi Williams, The problem with the repeating sequence block arises because the solver's step size changes when the simulation ti...

4 months ago | 0

Answered
simulation error with PV array
Hi @Ahmad, The issue arises because the PV array's output voltage is extremely high, resulting in a (Vd/Vt) ratio of around 3. ...

4 months ago | 0

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Answered
How to get a frequency vector in NUFFT MATLAB CODE?
Hi @NGR MNFD, The ‘nufft’ uses the default frequencies with the form f(i) = (i-1)/n for a signal length of n. The nonuniform di...

4 months ago | 0

Answered
question about symmetric in function: rlgc2s
Hi Kuan, The symmetrize is used at the end of the function to ensure the individual s parameter of the network are symmetric. ...

4 months ago | 0

Answered
why the angular position of bar2 is negative?
Hi Ouchen, The angular position of the second bar linkage is negative due to the opposite connection of the base frame and the ...

4 months ago | 0

Answered
Error bar on probability distribution function
Hi Neda, The standard deviation represents the data spread around the mean and used to plot the error bar on the probability di...

4 months ago | 0

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Answered
DVB-S2 using high sampling rate encoutered Fine Frequency error estimation failed
Hi Chen, The DVB-S2 uses the coarse frequency synchronization algorithm which can track carrier frequency offsets up to 11% of ...

4 months ago | 0

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Can I input an array of derivatives to the integrator and obtain an array as output?
Hi Rangaswamy, The Simulink ‘Integrator’ block accepts vector signal as an input and integrates each element individually. ...

4 months ago | 0

Answered
how to convert list by Hilbert Huang Transform?
Hi Laila, The ‘emd’ function in the MATLAB decomposes the signal into Intrinsic mode function,which represents the oscillatory ...

4 months ago | 0

Answered
Define bode plot frequency limits
Hii Gabriel, The bode plot of the equalizer circuit within the required frequency limits can be plotted by specifying the freq...

4 months ago | 0

Answered
Unity gain op-amp output voltage amplitude is less than the input voltage amplitude
Hii Alin, The distortion observed at higher frequencies, at 100 kHz, is due to the slew rate limitation of the op-amp. T...

5 months ago | 0

Answered
Centered-tapped transformer in Simscape unexpected behaviour
Hii Romy, The output voltage is twice of the expected value is due to the centre tap in the transformer present at the seconda...

5 months ago | 0

Answered
I substracted two 3D matrix and get a 2D matrix instead of 3D matrix, why?
Hii Wang, The original matrix p has dimensions 3264x4912x3. When using p(1:Y, 1:X-d) and p(1:Y, 1+d:X), you are slicing the fir...

5 months ago | 0

Answered
How can i add engine rpm as a step input for Mass Spring Damper model
Hii Andrew, The issue occurs because the ‘step’ block in the circuit is not from the Simscape Electrical library but from the S...

5 months ago | 0

Answered
Set current axes by using axes() is not wokring
Hii ZB, To plot multiple lines on the same figure in MATLAB App Designer, you can specify the axes for each plot and use the `h...

5 months ago | 0

Answered
How do I calculate the duration of a peak event for a cell activity signal?
Hii Esther, As per my understanding you want to calculate the duration of the peak, which is defined as the time difference bet...

5 months ago | 0

Answered
What is this sign called with the arrow pointing up?
Hii Alex, The block used in the model is the "Hit Crossing" block, which can be found under Simulink > Discontinuities > Hit Cr...

5 months ago | 0

Answered
I want to create a rectangular plot where all 4 sides are part of a coordinate system.
Hii Yannick, To visualize the flight data as a route on a rectangular plot, I would suggest you to convert the heading data int...

5 months ago | 0

Answered
problem onn numerical solution
Hii ABDO, The Smoothed Particle Hydrodynamics (SPH) method calculates the approximate values by solving the linear equation. Th...

5 months ago | 0