# Mohamad Nazir

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Question

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...

6 months ago | 1 answer | 0

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answerTurning 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 ...

7 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...

10 months 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...

10 months 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| ...

10 months 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,....

10 months ago

how to calculate Zero Sequence inductance(L0)For IPMSM delta connection

The zero sequence inductance can be calculated using L0 = V0open/I0short where V0open is the open-circuit voltage for the zer...

10 months ago | 0

| accepted

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...

10 months ago | 0

| accepted

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 ...

12 months ago | 0

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

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

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

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

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

| accepted

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

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 ...

1 year ago | 1

| accepted

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...

1 year ago | 0

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...

1 year 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 ...

1 year 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:...

1 year 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...

1 year 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...

1 year 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...

1 year ago

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

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