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Mohamad Nazir


Last seen: 1 month ago |  Active since 2021

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Connection to target microcontroller error
Hi, I designed an interrupt-based model for object code generation to the target microcontroller including blocks from the targ...

11 months ago | 1 answer | 0

1

answer

Answered
Turning voltage on/off in a PV Array and DC motor simulation
What do you mean exactly the controlled voltage source does not work? Did you take into consideration that the load torque will ...

12 months ago | 0

Solved


Calculate BMI
Given a matrix hw (height and weight) with two columns, calculate BMI using these formulas: 1 kilogram = 2.2 pounds 1 inch = 2...

1 year ago

Solved


Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

1 year ago

Solved


Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

1 year ago

Solved


Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

1 year ago

Answered
how to calculate Zero Sequence inductance(L0)For IPMSM delta connection
The zero sequence inductance can be calculated using L0 = V0open/I​0short​ where V0open​ is the open-circuit voltage for the zer...

1 year ago | 0

| accepted

Answered
How to calculate accurate Sample time for PWM generator block & Current Controller (Here I am using Torque Controller with FOC Controller & 3 Phase IPMSM)
The general rule is Nyquist's theorem which is a sampling frequency at least 10x the frequency of the signal you are trying to s...

1 year ago | 0

| accepted

Answered
in My model I am using torque controller with FOC for IPMSM. How to tune Current Controller PID .Because Current controller have two PID controller.
You can follow the steps of the following example in the link below to tune the current controllers at first and then repeat it ...

1 year ago | 0

Answered
What is an efficient way to do PID tuning in a model with long computing time?
You can identify a second order transfer function model of your VFD from the open-loop step response (using overshoot, response ...

1 year ago | 1

Answered
What is the wL block circled in blue called in MATLAB?
Hi, isn't this the velocity multiplied by the inductance? this can be implemented by simply using the product block (https://fr....

1 year ago | 0

Answered
How can I make a simscape representation of the simulink 'Universal Bridge'
Hi, I think the closest block to the Universal Bridge in the electrical library is https://fr.mathworks.com/help/sps/ref/convert...

1 year ago | 0

Answered
Transfer function matrix of a Multiple input DC-DC converter
Hi Mohammad, you can probably use Model Linearizer app (https://fr.mathworks.com/help/slcontrol/ug/modellinearizer-app.html) on ...

1 year ago | 0

Answered
Help required for creating a current sink
Hi, depending on which library you are using, you can use one of the blocks below to model a variable resistor such that the cur...

1 year ago | 0

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Answered
Controling multiple switches in a multiple input DC-DC converter
Hi Mohamad, to my understanding you need to have a charging/discharging case which can be simply modelled with a manual switch w...

1 year ago | 0

Answered
Explaining the function of certain blocks
When a DC motor is supplied with a fixed value DC voltage, it runs at a constant speed (assuming constant load). To control its ...

2 years ago | 1

| accepted

Answered
How to converge 3 phases of simulink voltage onto a simscape VI measurement which accepts 1 port
All you have to do is right click on the current & voltage sensor, choose Simscape > Modeling option > expanded three-phase port...

2 years ago | 0

Answered
Which block to use for BLDC motor for BLDC speed controller design?
BLDC normally denotes a permanent magnet synchronous machine with trapezoidal back-emf waveform. When the machine is called simp...

2 years ago | 0

| accepted

Solved


Solve a System of Linear Equations
Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

2 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

2 years ago

Solved


Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

2 years ago

Solved


Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

2 years ago

Solved


Calculate Amount of Cake Frosting
Given two input variables r and h, which stand for the radius and height of a cake, calculate the surface area of the cake you n...

2 years ago

Answered
How can I implement computation step in simulink?
Hi, Depends on what you are trying to achieve. If you want to implement it in Laplace form, for the first block your a is = T...

3 years ago | 1

Answered
Error in PWM Generator Vienna Rectifier
Have you tried to simply insert a "round" block or a "data type conversion" block (or maybe both) for "SmallJexNum" in the "PWM ...

3 years ago | 0