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**Content Feed**

Submitted

Resonant DC-link inverter simulation models

Various resonant DC-link inverter simulation models are explored using different controllers.

1 year ago | 9 downloads |

Submitted

PV array with algebraic loop broken

PV array with filter corrected to solve the algebraic loop problem.

2 years ago | 38 downloads |

algebraic loop problem in PV array block

The reason why there is an algebraic loop: The V-Filter and I-Filter in the model, for the computation of Vd, is supposed to br...

2 years ago | 0

| accepted

Algebraic loop error in PV panels (in filter block)

The reason why there is an algebraic loop: The V-Filter and I-Filter in the model, for the computation of Vd, is supposed to br...

2 years ago | 0

How to initialize outpt of a matlab function block in simulink to zero

You can add a persistent variable and check if it is empty. If it is empty, then it means it is the first time the Matlab functi...

2 years ago | 0

How to solve algebraic loop error??

PV panel model with fixed algebraic loop: https://www.mathworks.com/matlabcentral/fileexchange/71682-pv-array-with-algebraic-loo...

2 years ago | 0

How to connect two power grids in SimPowerSystem through DC_link?

Sorry, this answer is four years late: The 3-phase voltage sources you used to represent the grids are both tied to ground, t...

2 years ago | 0

Matrix interpolation in the direction of the third dimension

Here is my attempt at answering your question. I imagine that there are N matrices each with size nxn. Example matrices: %% n...

2 years ago | 1

Submitted

Newton-Raphson reciprocal approximation , 1/x and 1/sqrt(x)

The Newton-Raphson approximation of the reciprocal, i.e. 1/x and square root reciprocal is provided along with accuracy testing ...

2 years ago | 1 download |

why PV panels gives algebraic loop errors?

The provided suggestion of the unit delay is a work around, but it does not provide the reason for the presence of the algebraic...

2 years ago | 2

Submitted

On-line simplex search

A reentrant version of the well-known Simplex search (Nelder-Mead) optimization is provided.

2 years ago | 2 downloads |

Solved

Create a square matrix of multiples

Given an input, N, output a matrix N x N with each row containing multiples of the first element of each row. This also applies...

2 years ago

Solved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

2 years ago

Solved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

2 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

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

Add a block to a model

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

2 years ago

Solved

Connect blocks in a model

Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

2 years ago

Submitted

Real time tunable filters

A library of first and second order filters whose parameters can be tuned in real-time.

3 years ago | 7 downloads |

Can matlab give me difference equation from transfer fucntion

syms z; H = (1-z^-1) / (1-3*z^-1+2*z^-2); [N, D] = numden(H); Nc = eval(coeffs(N)); %Get coeffs and evaluatle symbolic ...

6 years ago | 1