Question

IEEE first benchmark for subsynchronous resonance(SSR) study

Has anyone modeled IEEE first benchmark for subsynchronous resonance study in Simulink Specialized power systems? I have built o...

2 months ago | 0 answers | 0

Question

Problems simulating a Specialized power system circuit using m code

For some reason, I have to simulate a Specialized power system circuit using m code, in dq frames. For this I have made three fi...

2 months ago | 0 answers | 0

Answered

Why am I getting an error 'index greater than 1' when trying to simulate a circuit based on ode15s

@Walter Roberson I have checked my matrix. The answer you posted says that the (M + lamda * dF/dy) has to be non-singular for al...

Why am I getting an error 'index greater than 1' when trying to simulate a circuit based on ode15s

@Walter Roberson I have checked my matrix. The answer you posted says that the (M + lamda * dF/dy) has to be non-singular for al...

3 months ago | 0

Answered

Is there anyway to calculate the position in coordinates of points using a n*n distance matrix?

I have found a mwthod mdscale() to do such things. But first, you have to know what is the dimension of the coordinates.

Is there anyway to calculate the position in coordinates of points using a n*n distance matrix?

I have found a mwthod mdscale() to do such things. But first, you have to know what is the dimension of the coordinates.

3 months ago | 0

| accepted

Question

Why am I getting an error 'index greater than 1' when trying to simulate a circuit based on ode15s

I am trying to simulate a circuit in a simulink model but I get an error saying that index > 1; if I change to other solvers lik...

3 months ago | 1 answer | 0

Question

Is there anyway to calculate the position in coordinates of points using a n*n distance matrix?

if there are n points in a 2-D coordinate, it is relatively easy to calculate the distance matrix using their positions. However...

5 months ago | 2 answers | 0

Answered

How to attract solution from ANSYS Maxwell?

How many cols do you have in your fld file? I have 9 cols, the first 3 are the position of the point and the latter 6 are "compl...

How to attract solution from ANSYS Maxwell?

How many cols do you have in your fld file? I have 9 cols, the first 3 are the position of the point and the latter 6 are "compl...

5 months ago | 0

Question

GPU backslash performance much slower than CPU

I am doing numerical power flow caclulation by modifying the functions of matpower, an open source toolbox. By modifying its fun...

6 months ago | 1 answer | 1

Answered

Virtual synchronous machine (simulink file)

Just modify any synchronous machine model in Simulink into a voltage source (they are modeled as current sources in simulink)

Virtual synchronous machine (simulink file)

Just modify any synchronous machine model in Simulink into a voltage source (they are modeled as current sources in simulink)

7 months ago | 0

Answered

Simulink file of a Virtual Synchronous Generator

A simple way is to change the built-in synchronous machine models in Simulink into voltage sources(they are modeled as current s...

Simulink file of a Virtual Synchronous Generator

A simple way is to change the built-in synchronous machine models in Simulink into voltage sources(they are modeled as current s...

8 months ago | 0

Answered

Does anyone have the idea about inverting .p file into a readable .m file? powericon.p

Thank you bro but the description is a bit confusing because it is in English. I think both of us come from China right? Could y...

Does anyone have the idea about inverting .p file into a readable .m file? powericon.p

Thank you bro but the description is a bit confusing because it is in English. I think both of us come from China right? Could y...

10 months ago | 0

Answered

Does anyone have the idea about inverting .p file into a readable .m file? powericon.p

How did you manage to access this matrix bro? I have tried it myself as well. When calling powericon() in codes, you can get a s...

Does anyone have the idea about inverting .p file into a readable .m file? powericon.p

How did you manage to access this matrix bro? I have tried it myself as well. When calling powericon() in codes, you can get a s...

10 months ago | 0

Answered

Does anyone have the idea about inverting .p file into a readable .m file? powericon.p

Nice try man, but I will tell you there is no shit in powericon() because it is just calling other functions to calculate the pa...

Does anyone have the idea about inverting .p file into a readable .m file? powericon.p

Nice try man, but I will tell you there is no shit in powericon() because it is just calling other functions to calculate the pa...

10 months ago | 1

| accepted

Answered

How to decrypt a pcode?

Oh man you have really asked a good question, like claiming yourself to be a bank robber in front of a police department

How to decrypt a pcode?

Oh man you have really asked a good question, like claiming yourself to be a bank robber in front of a police department

10 months ago | 2

Answered

linmod function for linearizing IEEE Second Benchmark System

There is a similar work in book "Dynamic simulations of electrical machinery using MAtlab Simulink" and the eigenvalue analysis ...

linmod function for linearizing IEEE Second Benchmark System

There is a similar work in book "Dynamic simulations of electrical machinery using MAtlab Simulink" and the eigenvalue analysis ...

11 months ago | 0

Answered

PSAT queries and MATLAB/Simulink

http://faraday1.ucd.ie/psat.html It is a 3rd party software and it has no warranty. In my opinion it is just a matlab-based pow...

PSAT queries and MATLAB/Simulink

http://faraday1.ucd.ie/psat.html It is a 3rd party software and it has no warranty. In my opinion it is just a matlab-based pow...

12 months ago | 0

Answered

Order of Model -Synchronous Machine SI Fundamental

its 5 order for salient pole and 6 order for round rotor.

Order of Model -Synchronous Machine SI Fundamental

its 5 order for salient pole and 6 order for round rotor.

1 year ago | 0

Answered

Lack of understanding or inaccuracy of the model of the dynamics of three-phase round-rotor or salient-pole synchronous machine

for salient pole rotors nstate=5 and this will change(1 1) (1 5) (5 1) (5 5) of the zero matrix

Lack of understanding or inaccuracy of the model of the dynamics of three-phase round-rotor or salient-pole synchronous machine

for salient pole rotors nstate=5 and this will change(1 1) (1 5) (5 1) (5 5) of the zero matrix

1 year ago | 0

Answered

Synchronous machine saturation instabilities

Hi Dude I am doing sync machine modelling as well. It seems that you are imitating the simulink sync machine model. How do you u...

Synchronous machine saturation instabilities

Hi Dude I am doing sync machine modelling as well. It seems that you are imitating the simulink sync machine model. How do you u...

1 year ago | 0

Question

Parameter conversion between synchronous machine pu standard and pu fundemental

I am doing synchronous machine modelling and I am paying attention to the pu standard and pu fundemental synchronous machine. Wh...

1 year ago | 0 answers | 0

Question

Is it possible to model synchronous machines merely with controlled sources, s-functions and R L C components?

Hello guys I wanna model a synchronous machine merely with controlled sources, s- functions and R L C components with no more co...

1 year ago | 1 answer | 0

Answered

Computer halts when running Python API functions

OK it is done. Matlab matrices have to be reshaped then py.list() then py.numpy.reshape() then py.list() to create adjacency mat...

Computer halts when running Python API functions

OK it is done. Matlab matrices have to be reshaped then py.list() then py.numpy.reshape() then py.list() to create adjacency mat...

1 year ago | 0

| accepted

Question

Computer halts when running Python API functions

I am doing research in power system partition using matpower and results have to be plotted. Matlab is weak in such plotting so ...

1 year ago | 1 answer | 0

Answered

How to turn off all results in matpower?

Dude ayyappa is right But in Matpower 7.0 the ('out.all' ,0)option will be overridden when calling function runpf(),namely,the ...

How to turn off all results in matpower?

Dude ayyappa is right But in Matpower 7.0 the ('out.all' ,0)option will be overridden when calling function runpf(),namely,the ...

1 year ago | 0