Answered
Why are the characteristic points of the PV curve in the PV Array block, particularly the open circuit voltage, shifted in the simulation?
Hi @Israfil-Cihan, The PV array block displays the I-V and P-V characteristics for specified irradiances and fixed temperature....

3 months ago | 0

Answered
how i can set Vrms value using Band-Limited White Noise block?
Hi @ANAS HAMZAH, The power Spectral Density(PSD) of a white noise is constant over the whole frequency range. The noise power o...

3 months ago | 0

Answered
Why the peak values are evidently different under the impulse function to a second order function with zero damping?
Hi @Tony Cheng, The issue can be resolved by using a finer time step resolution, which captures the impulse response more accur...

4 months ago | 1

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Answered
"Modelling option" for RLC (Three-phase) non-existent
Hii @Robert Clancy, The 3-phase RLC block offers two modeling options: 'composite three-phase' and 'expanded three-phase'. The ...

4 months ago | 1

Answered
Chancing variable in laplace transformation
Hii @YUNUS EMRE, The laplace(Xj(t), t, s) value from f1 can be expressed in terms of Xp(s) by isolating the value using the 'is...

4 months ago | 0

Answered
I am not getting the desired dc motor speed characteristics.
Hi Anant, The constant voltage across the DC motor is due to the MOSFET drain voltage reaching saturation, resulting in a const...

4 months ago | 0

Answered
How do I measure drain current in the mosfet
Hi Anant, The drain current can be measured by connecting the 'Current Sensor' between the drain and source of the MOSFE...

4 months ago | 0

Answered
What can I do to make the pattern in the legend larger？I look up a lot of ways, can't solve, ask for help.Thinks!
Hello Lin The Legend feature doesn't support direct customization of marker sizes. However, you can work around this limitation...

4 months ago | 0

Answered
Error Simscape Number of variables exceeds number of equations : fault_detection_and_control_system/Voltage Sensor
Hi Ahmad, The voltage sensor block is designed to measure the voltage between two points in an electrical circuit. However, in ...

4 months ago | 0

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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...

4 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...

4 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...

4 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...

5 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...

5 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...

5 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...

5 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...

5 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...

5 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...

5 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. ...

5 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...

5 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. ...

5 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 ...

5 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...

5 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 ...

5 months ago | 0

Answered
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. ...

5 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 ...

5 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...

5 months ago | 0