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Pat Gipper


Array of Engineers

Last seen: 2 mesi fa Attivo dal 2020

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PV MPPT Tracking Failing PV Array Current or Volatge Goes negative
Hi Ishaan. I found that a perturbation of 1% (Constant2 with value of 1) was too large in the controller. If you reduce the Cons...

9 mesi fa | 0

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Model error in Simulink
It is having problems simulating an ideal op amp with infinite gain. If you intend on configuring the LM386 op amp as an invert...

10 mesi fa | 0

Risposto
Adding noise to a PID signal
Hi Nathan, You can use the lsim command to get a general response of your controller. I think you want to see the response when...

10 mesi fa | 0

Domanda


Why the different response of two Simulink models?
Here is a follow-on question to this original question: How can I remove the few peaks before the overshoot, so I only have the...

11 mesi fa | 0 risposte | 0

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How can I remove the few peaks before the overshoot, so I only have the overshoot peak and then it directly transition into steady state?
Hi Samuel. I found tuning the derivative to be difficult too. Eventually I settled in on P=3.5, I=850, D=0.01 and N=850. The def...

12 mesi fa | 0

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Can you let me know how to solve my errors? there are 4 errors in my simulink.
You had two issues. One was the integrators in Current_Controller were implimented using the Memory in the feedback path causing...

circa un anno fa | 1

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Data type mismatch error in Simulink
I saw a number of other issues in this model. 1) I think the inverter needs a ground reference added on the emitters of the low...

circa un anno fa | 0

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I need more explanations for the described hydraulic simulation
The pump in this model acts in a fixed displacement mode that produces a given flow rate regardless of its output pressure. When...

circa un anno fa | 0

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Filter background from audio file
Check out this previous answer. A different type of owl, but the same concept. Using Spectrogram to Design a Filter - (mathwork...

circa un anno fa | 0

Risposto
Simulation of the step response of a time delay system with a PID controller is contorted.
Those sharp transients in the closed loop response are the echoes of the step input as filtered by the transfer function that ar...

circa un anno fa | 0

Risposto
3rd Order ODE on Simulink
I approximated the required doublet input into an update to my comment with a summation of two very short pulse generators.

circa un anno fa | 0

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Why is my step response going down instead of up?
I would focus on your equation for zeta on line 60. It is resulting in a negative value (negative damping=bad!) which gives unst...

circa un anno fa | 1

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Risposto
An electric circuit that includes a voltage source E with an internal resistance r, and a load resistance R is shown in the figure.
Probably late for your homework assignment. Can you write the equation for the power dissipated in R leaving R as a variable? Do...

circa un anno fa | 0

Inviato


Frequency Response Analyzer
Perform frequency analysis of your Simulink model without linearization

circa un anno fa | 23 download |

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Risposto
Unexpected noise in output voltage for buck converter
The Puse Generator has a period of 1/100000 seconds, which is injecting 100 KHz pulses into your system. The ripple is simply th...

oltre un anno fa | 0

Risposto
Reproduce electric motor maps as images in Matlab Simulink
A similar question was answered suggesting importing the image into Matlab and then using ginput to extract coordinates of the a...

circa 2 anni fa | 0

Risposto
Determining time elapsed in between two successive pulses of a signal
I updated your code a bit and fed in an artificial signal. It works but has a slight error due to loop delays running on my comp...

circa 2 anni fa | 1

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Risposto
How best to gather signals from all over a SIMULINK model to one subsystem
I moved your root model into a subsystem and used Bus Element Out(s), which was then connected to a new input on "get data" subs...

circa 2 anni fa | 0

Risposto
A question about FOC current control for PMSM
The decoupling control is not quite correct for the PMSM motor you are using. You need to insert a multiplier by the number of p...

circa 2 anni fa | 1

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Risposto
How to measure the steady state amplitude of a control system output
Try using this app. It injects a sine wave and measures the gain and phase after a number of cycles that you specify. https://w...

circa 2 anni fa | 0

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How to programmatically know if a block is a sink block?
I had to add some complexity to your code to make it work on my sample file. modelfile = 'SinkXY';% Or whatever your model file...

circa 2 anni fa | 0

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Need help with simple Simulink
This seems to do the trick. It produces the following result.

circa 2 anni fa | 1

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Risposto
Simulation of a missile valve with Simscape
Hi Tom, A flip-flop will latch the valve shut once the flow reaches the threshold and keep it shut until you manually reset it....

circa 2 anni fa | 1

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Coding philosophy : Is using global goto like using a global variable?
The thing about global visibility is that this signal can be accessible anywhere in the entire model, from sub-system to sub-sys...

circa 2 anni fa | 1

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Calling a function using ode45 in App Designer results in unrecognized function
Note that I had answered my own question.

circa 2 anni fa | 0

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How make single block diagram with this given parameters?
Hi. If you are using a Transfer Fcn block and have the coefficients defined in your workspace, then enter the equations in the b...

circa 2 anni fa | 1

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Frequency domain to Time domain Using IFFT : Symmetric figure problem
Your function produced a vector of complex numbers called "A". The original sequence will be reproduced using ifft(A). But the f...

circa 2 anni fa | 0

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Substitute s for jw in a transfer function
Matlab uses the reserved constant "i" which is set equal to sqrt(-1). Using your transfer function as defined try the following...

circa 2 anni fa | 0

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