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as you can see in the title, I have an ordinary diffrential equation and the unknow function can takes complex values and

I don't figure out how I can derivate this function.

I propose the code below

can anyone help me?

der(T7[i].re) = (0.4 * mr[i] * 0.016 * Kf * (Tout[i].re- T7[i].re) - Ks * (T7[i].re - Ta[i])) * (1 / Ct);

der(T7[i].im) = (0.4 * mr[i] * 0.016 * Kf * (Tout[i].im - T7[i].im) - Ks * (T7[i].im - Ta[i])) * (1 / Ct);

**GTC**

thank you it works very well;

I try to translate a program of temperature variation from Matlab to OpenModelica, so in matlab, the initial conditions are updated for each iteration, like shown in the code below,

How I can do that in OpenModelica?
**
**

T0_7=[16.2+273.15 16.2+273.15 16.2+273.15 16.2+273.15 16.2+273.15 16.2+273.15 32+273.15 ];

t0=0; %Istante di tempo iniziale

tf=60; %Istante di tempo finale

tspan=t0:1:t0+tf-1; %Intervallo di tempo

Tint=16.2; %celsus

Tint=Tint+273.15;% kelvin

N_misure=1440;% nobre de mesure

TT_7=zeros((tf*N_misure),7);

for i=1:1:N_misure

options = odeset('RelTol',1e-4,'AbsTol',[1e-4 1e-4 1e-4 1e-4 1e-4 1e-4 1e-4 ]);

%Risoluzione del modello (8) modificato tramite il metodo Runge Kutta del 4 ordine

[t_7,T_7]=ode45('Modello3',tspan,T0_7,options);

T_7=real(T_7);

T0_7=T_7(length(T_7),:)

**CTG,**

thank you, I take what you told me with your example and I will apply it in my model.

**CTG,**

thank you CTG for your answer.

I do what you told me to do, but, now I have another problem in derivative of complex function.

is there a function which allow us to derivate a complex function? else you can give me an idea how to do this

can you help me, please?

thank you in advance for your answer

der(T2[i]) =(q_cd_g_pv * (T1[i] - T2[i]) - q_cd_pv_ted * (T2[i] - T3[i]) + (tau_fg * alfa_pv - eta) * G[i] * Apv + tau_fg * alfa_eva * G[i] * (Ag - Apv)) * (1 / Cpv);

message error: [OM_Modello3_11: 340:5-340:207]: Type mismatch for positional argument 1 in der(=T1[i]). The argument has type:

Complex

expected type:

Real

thank you for your answer;

in fact, I have a variable in my function and during simulation can takes real and complex numbers, so my question is how can I define this variable in the top of the function

thanks in advance

can anyone help me

How to define complex numbers in arrays in openmodelcia, does the complex number take two boxes in the array or one

If we have a variable and may be it takes real and complex values, so how I will define this value in OpenModelica.

can anyone help me.

**CTG,**

thank you a loooooot it was helpful for me and for who has the same problem

## USER wrote:

sjoelund.se

hi

I want to solve this equation ax2+bx+c=0 in OpenModelica and when the discriminant (delta<0) is less then 0 the program does not give me the complex numbers results

Can you help me please?

function equation_2nd

input Real a;

input Real b;

input Real c;

output Real x1;

output Real x2;

output Real x0;

output Real c1;

output Real c2;

protected

Real d;

constant Complex j;

algorithm

d:=b^2-4*a*c;

if d>0 then

x1:=(-b-sqrt(d))/(2*a);

x2:=(-b+sqrt(d))/(2*a);

elseif d==0 then

x0:=-b/(2*a);

else

c1:=(-b/(2*a))-j*(sqrt(d)/(2*a));

c2:=(-b/(2*a))+j*(sqrt(d)/(2*a));

end if;

end equation_2nd;

hi,

I have the function below and among her inputs, there is Ta and as you can see it is declared as array,

function Nusselt_free_convection_fg_test

output Real Nu[5];

input Real Ta[5];

input Real v, ni, Pr, Tfilm, Tfg_3, Lpan, teta;

protected

//--------------

//import Modelica.Constants;

parameter Real Pi = Modelica.Constants.pi;

parameter Real g = 9.81;

Real beta;

Real cteta;

Real Gr[5];

Real Grcr;

algorithm

beta := 1 / Tfilm;

cteta := 90 - teta;

for i in 1:5 loop

Gr[i] := g * cos(cteta * Pi / 180) * beta * (Tfg_3 - Ta[i]) * Lpan ^ 3 / ni ^ 2;

if v < 2 then

Grcr := 15.0 * 10 ^ 9;

else

Grcr := 6.0 * 10 ^ 9;

end if;

Nu[i] := 0.14 * ((Gr[i] * Pr) ^ (1 / 3) - (Grcr * Pr) ^ (1 / 3)) + 0.56 * (Grcr * Pr * cos(teta * Pi / 180)) ^ (1 / 4);

end for;

end Nusselt_free_convection_fg_test;

when I simulate this function by the test fuction below I got this error message

]: Type mismatch for positional argument 1 in Nusselt_free_convection_fg_test(Ta=Ta[i]). The argument has type:

Real

expected type:

Real[5]

can anyone help me?

class test_propria_fun

Real a[5];

parameter Real Ta[5]={24.6,23.5,23.3,24.1,24.5};

equation

for i in 1:5 loop

a[i]=Nusselt_free_convection_fg_test(Ta[i],1.5,1.6699e-5,0.7110,310,35,3.354,45);

end for;

end test_propria_fun;

hi

what does the error below means

and

can us use ode inside for loop in OpenModelica.

thanks in advance.

can anyone help me

der(cr) := exp is not legal Modelica code. OpenModelica accepts it for interoperability with non-standards-compliant Modelica tools. There is no way to suppress this warning.

I want to recover the values of x for each time instant (t) in a vector, in the example below.

for example t=0:0.1:5;

can any one help me please?

model test_ode

Real x;

Real y;

initial equation

x=0;

equation

y=time ;

der(x)=3*exp(-y);

end test_ode;

**[b] I have a matrix with 100 lines and 9 columns and it is hard to write all this lines, can anyone help me to give me an idea how i can do this easily**

thank you in advance

May-02-20 16:49:04

To Obtain ODE formulation for a given DAE in OMC

Category:
Usage and Applications

**adrpo,**

Hi adrpo,

I have 2 differential equations and I want to initialize them, can you help me, please

der(T1) = (q_punto_r_g_sky + q_r_g_gr * (Ta - T1) + q_conv_g * (Ta - T1) - q_cd_g_pv * (T1 - T2) + alfa_fg * G * Ag) * (1 / Cg);

der(T2) = (q_cd_g_pv * (T1 - T2) - q_cd_pv_ted * (T2 - T3) + (tau_fg * alfa_pv - eta) * G * Apv + tau_fg * alfa_eva * G * (Ag - Apv)) * (1 / Cpv);

Hi,

I want to solve ODE in openmodelica and when i simulate my model I get this warning message

can anyone help me, please?

03:31:17 Traduction Avertissement

Assuming fixed start value for the following 7 variables:

T7:VARIABLE(fixed = true ) type: Real

T6:VARIABLE(fixed = true ) type: Real

T5:VARIABLE(fixed = true ) type: Real

T4:VARIABLE(fixed = true ) type: Real

T3:VARIABLE(fixed = true ) type: Real

T2:VARIABLE(fixed = true ) type: Real

T1:VARIABLE(fixed = true ) type: Real

hi,

I want to create a matrix with (**n** lines and** j** columns) and I will extract in a specific column of the matrix as described in the code below written in MatLab

can anyone help me please?

Matrix=[1,2,3;4 5 6;7 8 9]

a=Matrix(:,2)

Apr-30-20 01:07:57

Topic:
Array in modelica language

how to declare array in modelica language

Category:
Programming

Forum:
Modelica Language

hi,

can you please show me how to declare a matrix with (n lines and j columns) and how extract a specific column

Matrix=[1 2 5;4 5 3;1 9 8]

a=Matrix(2,:)

I used CombiTimeTable in openmodelica to uplod the txt file.

my question is how to extract each column separately and save them in variables

temp.txt

Hi,

can you please help me to show me how to uplaod txt file in CombiTimeTable ?

thanks in advance

Can anyone help me to learn how to import a txt file into timetable as an input data? I am attaching the file. Can you please show me how to import the txt data into timetable?

Thanks in Advance.

temp.txt

**adrpo,**

hi,

I saw you replay, so i want to help to uplaod data (ambiante temperature and external temperature) to timetable

can you help me please

Hello, thank you for your answer

can you explain to me how to write a txt file that Openmodelica accepts.

The excel file contains three columns, the first column corresponds to the time, the second column to the indoor temperature and the last column contains the external temperature

thank you

I'm looking for the integration methods of differential equations that OpenModelica uses

**adrpo,**

Hello,

Actually, I want to translate a Matlab code to openmodelica

Can you help me to translate the instructions below

options = odeset('RelTol',1e-4,'AbsTol',[1e-4 1e-4 1e-4 1e-4 1e-4 1e-4 1e-4 ]);

[t, s]=ode45('Modello3',tspan,T0,options);

thank you in advance for your aswer

Hello,

Actually, I try to translate a Matlab code to openmodelica.

can any one help me to translate this instructions

options = odeset('RelTol',1e-4,'AbsTol',[1e-4 1e-4 1e-4 1e-4 1e-4 1e-4 1e-4 ])

[t,X]=ode45(@Modello3, tspan, t0 ,options)

I have an Excel file and which it contains temperature values of one day, now I want to read all this data in modelica from an excel file

can any one help me, please?

thank you in advance fo your answer

Hi,

I want to uplaod a picture inside a block

thank you in advance for your answer

Hello,

I got this error when i run my model

** Variable pvte500cr1.y[1] does not have any remaining equation to be solved in. The original equations were:
**

model PVTE500CR

extends Modelica.Blocks.Interfaces.MIMO(nin=3);

extends Modelica.Blocks.Interfaces.MIMO(nout=3);

input Real Va;

input Real TaC;

input Real G;

//outputs

output Real Ia[:];

output Real p;

output Real pj;

//outputs

//% Define variables

Real TaK ;

Real Isc ;

Real Iph ;

Real Ir;

Real Vt_Ta ;

constant Real k=Modelica.Constants.k;

constant Real e_ch=Modelica.Constants.q;

//***************

parameter Real n = 1.62 ;

parameter Real Eg = 1.12;

parameter Real Ns = 36;

parameter Real TrK = 298;

parameter Real Voc_TrK = 22.30/Ns;

parameter Real Isc_TrK = 3.90;

parameter Real a = 0.95e-3;

parameter Real b= Eg * e_ch /(n * k);

parameter Real Vt_TrK = n * k * TrK / e_ch;

parameter Real Ir_TrK = Isc_TrK / (exp(Voc_TrK / Vt_TrK) -1);

parameter Real dVdI_Voc = -1.0/Ns;

parameter Real Xv = Ir_TrK / Vt_TrK * exp(Voc_TrK / Vt_TrK);

parameter Real Rs = - dVdI_Voc - 1/Xv;

equation

TaK = 273 + TaC;

Iph = G * Isc;

Isc = Isc_TrK * (1 + (a * (TaK - TrK)));

Ir = Ir_TrK * (TaK / TrK)^(3/n) * exp(-b * (1 / TaK -1 / TrK));

Vt_Ta = n * k * TaK / e_ch;

Ia[1]=0;

for i in 2:4 loop

Ia[i]=Ia[i-1]-(Iph - Ia[i-1]-Ir.*(exp(((Ia[i-1]*Rs)+(Va/Ns))./Vt_Ta)-1))./(-1-Ir*(Rs./Vt_Ta).*exp(((Va/Ns) + Ia[i-1]* Rs) ./ Vt_Ta));

end for;

p=Ia[size(Ia,1)]*Va;

pj= Rs*(Ia[size(Ia,1)]^2)*Ns;//% + (( (Va+Rs*Ia)^2)/Rsh);

end PVTE500CR;

I would like to test my model if it works very well, I tried to inject constant inputs but it returns me errors when I simulate it

model test_pvt2

Modelica.Blocks.Sources.Constant const(k = 1200) annotation(

Placement(visible = true, transformation(origin = {-150, 30}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

Modelica.Blocks.Sources.Constant const1(k = 25) annotation(

Placement(visible = true, transformation(origin = {-150, -28}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

Modelica.Blocks.Sources.Constant const2(k = 38) annotation(

Placement(visible = true, transformation(origin = {-150, -70}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

PVTE500CR pvte500cr1 annotation(

Placement(visible = true, transformation(origin = {34, -22}, extent = {{-28, -28}, {28, 28}}, rotation = 0)));

equation

connect(const2.y, pvte500cr1.u[3]) annotation(

Line(points = {{-138, -70}, {-56, -70}, {-56, -22}, {0, -22}}, color = {0, 0, 127}));

connect(const1.y, pvte500cr1.u[2]) annotation(

Line(points = {{-138, -28}, {-58, -28}, {-58, -22}, {0, -22}}, color = {0, 0, 127}));

connect(const.y, pvte500cr1.u[1]) annotation(

Line(points = {{-138, 30}, {-58, 30}, {-58, -22}, {0, -22}}, color = {0, 0, 127}));

end test_pvt2;

can any one help me please?

Hi,

I took your exemple but I rewrote it in anathor way, finally it works well

block A

extends Modelica.Blocks.Interfaces.MO(nout=2);

parameter Real a[2] = {5.0, 2.0};

equation

for i in 1:2 loop

y[i] = a[i];

end for;

end A;

//

block B

extends Modelica.Blocks.Interfaces.MIMO(nin=2);

extends Modelica.Blocks.Interfaces.MIMO(nout=2);

equation

// for loop to run out our model

for i in 1:2 loop

y[i] = u[i];

end for;

end B;

//

model AB

A a1 annotation(

Placement(visible = true, transformation(origin = {-128, 12}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

B b1 annotation(

Placement(visible = true, transformation(origin = {14, 10}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

equation

for i in 1:2 loop

connect(a1.y[i], b1.u[i]) annotation(

Line(points = {{-116, 12}, {2, 12}, {2, 10}, {2, 10}}, color = {0, 0, 127}, thickness = 0.5));

end for;

end AB;

hi,

I want to translate this for loop from matab to openmodelica

Ia=zeros(size(Vc))

for j=1:5

Ia = Ia - (Iph - Ia - Ir .* ( exp((Vc + Ia .* Rs) ./ Vt_Ta) -1))./ (-1 - Ir * (Rs ./ Vt_Ta) .* exp((Vc + Ia .* Rs) ./ Vt_Ta))

end

can any one help me please?

thank you in advance

I got this error when I run my model,

Please, can any one help me to fix this error?

Equation 13 (size: 1) Ia[3] = Ia[2] + (Ir * (-1.0 + exp((Vc + 0.01711085220626408 * Ia[2]) / Vt_Ta)) + Ia[2] - Iph) / (-1.0 + (-0.01711085220626408) * Ir * exp((Vc + 0.01711085220626408 * Ia[2]) / Vt_Ta) / Vt_Ta) is not big enough to solve for enough variables.

thanks in advance for your answer

I got this error when I run my model

Component Vc of variability PARAM has binding 0.02777777777777778 * Va of higher variability VAR

openmodelica indicate that the error comes from this line

parameter Real Vc=Va/Ns;

can you help me please

I want to use a function inside a block, so how I can associate function's inputs with block inputs and same thing for outputs

thank you in advance

Actually, I work to translate a program from matlab to modelica, but i have an issue about xlsread instruction in matlab

so, can any one help me to find how to use xlsread in modelica

thanks in advance for your help

hello, thank you for your answer it was helpful

I want to extract just the real part of a complex number, so can any one help me please?

thank in advance for your answer

I want to share parameters beetwen functions in modelica, like in matlabe with GLOBAL instruction

can anyone help me, please?

your answer it was helpful for me, so I have another question which i want to share parameters with other function in modelica

can you please help me?

Can anyone help me to solve this problem? so when I run my program I get this error

Component Tm of variability PARAM has binding 0.5 * (T4 + T6) of higher variability VAR.

thank you in advance for your answer

hello

can anyone help me, please to return a column in matrix

how I can do that?

Hello,

can anyone please shaw me to extract the real part of a complex number

Hello,

can anyone give me refrences about Mppt controler used in openmodelica,

I get this error when I simulate the system, can you give me the suggestions answer for solving this problem, please?

Incompatible components in connect statement: connect(voltageSensor1.y, pv_t31.u[6])

- voltageSensor1.y has components record ComplexOutput

Real im;

Real re;

end ComplexOutput;

- pv_t31.u[6] has components Real

Can anyone explain to me how to use CombiTimeTable in OpenModelica, please with example thank you

Iteration variables with default zero start attribute in torn nonlinear equation system:

pv_t31.u[6]:VARIABLE() "Connector of Real input signals" type: Real [6]

can anyone help me to translate this function from matlab to modelica, at the least the for loop because i don't figure out how i can translate it

thank you for your help

function [Ia] = TE500CR(Va,G,TaC)

/*------comments---------------------*/

% function TE500CR.m models the Totale Energie TE500CR+ PV module

% calculates module current under given voltage, irradiance and temperature

% Ia = TE500CR(Va,G,T)

%

% Out: Ia = Module operating current (A), vector or scalar

% In: Va = Module operating voltage (V), vector or scalar

% G = Irradiance (1G = 1000 W/m^2), scalar

% TaC = Module temperature in deg C, scalar

%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

/*--------------------------------------------*/

/*-------------parameters----------------*/

/*--------------------------------------------*/

% Define constants

k = 1.381e-23; % Boltzmann’s constant

q = 1.602e-19; % Electron charge

% Following constants are taken from the datasheet of PV module and

% curve fitting of I-V character (Use data for 1000W/m^2)

n = 1.62; % Diode ideality factor (n),

% 1 (ideal diode) < n < 2

Eg = 1.12; % Band gap energy; 1.12eV (Si), 1.42 (GaAs),

% 1.5 (CdTe), 1.75 (amorphous Si)

Ns = 36; % # of series connected cells (TENESOL TE500CR+, 36 cells)

TrK = 298; % Reference temperature (25C) in Kelvin

Voc_TrK = 22.30/Ns; % Voc (open circuit voltage per cell) @ temp TrK

Isc_TrK = 3.90; % Isc (short circuit current per cell) @ temp TrK

a = 0.95e-3; % Temperature coefficient of Isc (0.065%/C)

% Define variables

TaK = 273 + TaC; % Module temperature in Kelvin

Vc = Va / Ns; % Cell voltage

% Calculate short-circuit current for TaK

Isc = Isc_TrK * (1 + (a * (TaK - TrK)));

% Calculate photon generated current @ given irradiance

Iph = G * Isc;

% Define thermal potential (Vt) at temp TrK

Vt_TrK = n * k * TrK / q;

% Define b = Eg * q/(n*k);

b = Eg * q /(n * k);

% Calculate reverse saturation current for given temperature

Ir_TrK = Isc_TrK / (exp(Voc_TrK / Vt_TrK) -1);

Ir = Ir_TrK * (TaK / TrK)^(3/n) * exp(-b * (1 / TaK -1 / TrK));

% Calculate series resistance per cell (Rs = 5.1mOhm)

dVdI_Voc = -1.0/Ns; % Take dV/dI @ Voc from I-V curve of datasheet

Xv = Ir_TrK / Vt_TrK * exp(Voc_TrK / Vt_TrK);

Rs = - dVdI_Voc - 1/Xv;

% Define thermal potential (Vt) at temp Ta

Vt_Ta = n * k * TaK / q;

% Ia = Iph - Ir * (exp((Vc + Ia * Rs) / Vt_Ta) -1)

% f(Ia) = Iph - Ia - Ir * ( exp((Vc + Ia * Rs) / Vt_Ta) -1) = 0

% Solve for Ia by Newton's method: Ia2 = Ia1 - f(Ia1)/f'(Ia1)

Ia=zeros(size(Vc)); % Initialize Ia with zeros

% Perform 5 iterations

/*--------------------------------------------------------------------------------------------------------------------*/

/*----------help me to translate this for loop below form matlab to modelica----------------------*/

/*--------------------------------------------------------------------------------------------------------------------*/

for j=1:5;

Ia = Ia - (Iph - Ia - Ir .* ( exp((Vc + Ia .* Rs) ./ Vt_Ta) -1))./ (-1 - Ir * (Rs ./ Vt_Ta) .* exp((Vc + Ia .* Rs) ./ Vt_Ta));

end

**Abderezakabidi,**

hello,

I want to create two blocks in OpenModelica and to connect between them, such that the second block's inputs are the first block's outputs.

can you help me to do this, please?

thank you

Thank you Adeas for your answer

I want to attribute the parameters Inputs and outputs to the block's inputs and outputs how I can do this, please help?

can anyone help me to attribute the parameters to the inputs and outputs of the block that i will create it

thank you

thank you @Arinomo23, your answer it was helpful

now I have another question if you want, it is about blocks in OpenModelica, so can you tell me how I can create a block MIMO in OpenModelica and how I can specify the inputs and the outputs in the programme that I will write in this block,

thank you in advance for your answer.

How we can make a difference between variables and constants in OpenModelica code, please give me an example

can anyone help me, please

thank you in advance for your answer

how will I connect the output (i) of block A to the input (j) of block B

can you help me, please?

thank you sjoelund so much for your answer, it was helpful

weyy, thank you very much that's nice of you, I applied what you told me and it works very well, but I have another problem where I would like to connect between two multi-input multi-output blocks, so how will I connect the output (i) of block A to the input (j) of block B

my thank

thank you sjoelund for your answer;

I understand now how for loop works in OpenModelica, and you are right for your answer (note that I and Iph also need to be part of the same algorithm section or you will have double assignments), but in my program, I still not understand how can I use the integer (i) because (Icc, q, K, Tr, Eg) are the known parameters but Tac and G are the inputs.

I want to calculate (io11, io22, Iph, I, Relec) at each loop and these parameters are dependently between them.

please, can you help me?

parameter Real np=3;

I := 0;

Iph := 0;

for i in 1:np loop

io11 := io11 + (Icc / (exp(q * ((36 - 0.32 * (Tac - 224)) / 60) / (K * Tr)) - 1)) * (Tac / Tr) ^ 3 * exp(q * Eg * (1 / Tr - 1 / Tac) / K);

io22 := io22 + (Icc / (exp(q * ((36 - 0.32 * (Tac - 273 - 49)) / 60) / (2 * K * Tr)) - 1)) * (Tac / Tr) ^ 3 * exp(q * Eg * (1 / Tr - 1 / Tac) / (2 * K));

I := I + ((Icc + ki * (Tac - Tr)) * G / Gr) - (exp(q * ((0.5 * (1 - 0.0028 * (Tac - 273 - 25))) + Rs * I) / (K * Tac)) - 1) * io11 - (exp(q * ((0.5 * (1 - 0.0028 * (Tac - 273 - 25))) + Rs * I) / (2 * K * Tac)) - 1) * io22 - (((0.5 * (1 - 0.0028 * (Tac - 273 - 25))) + Rs * I) / Rsh);

Iph := Iph + (Icc + ki * (Tac - Tr)) * G / Gr;

Relec := Relec + Ro * (1 - b * (Tac - 273 - Tref));

end for;

end pvcurrent;

Hello, currently I work on the modeling of a PVT with OpenModelica, now I am creating the block MIMO which I will model the equations of the current source that exists in a Matlab file and I would like to convert them into openModelica but I have a problem with the use of the loop (for), I will give you the instructions that I want to translate to openModelica

can you help me, please?

------

(Tac and G are the inputs)

I=0

Iph=0

for i in 1:5 loop

io11 = (Icc / (exp(q * vo / (K * Tr)) - 1)) * (Tac / Tr) ^ 3 * exp(q * Eg * (1 / Tr - 1 / Tac) / K);

io22 = (Icc / (exp(q * vo / (2 * K * Tr)) - 1)) * (Tac / Tr) ^ 3 * exp(q * Eg * (1 / Tr - 1 / Tac) / (2 * K));

C = (v + Rs * I) / Rsh;

I = ((Icc + ki * (Tac - Tr)) * G / Gr) - (exp(q * (v + Rs * I) / (K * Tac)) - 1) * io11 - (exp(q * (v + Rs * I) / (2 * K * Tac)) - 1) * io22 - ((v + Rs * I) / Rsh);

Iph = (Icc + ki * (Tac - Tr)) * G / Gr;

Relec = Ro * (1 - b * (Tac - 273 - Tref));

end for;

end for

Apr-16-19 13:18:58

I'm beginner in openmodelica, so I want to create my own photovoltaic cell with parallel and...

Category:
Usage and Applications

Open-Source-PhotoVoltaics-Libraryfor-Systemic-Investigations.pdf

Hello,

I'm beginner in openmodelica, so I want to create my own photovoltaic cell with parallel and series resistor, so there exist in photovoltaics library a model about cell but it is just a basic model, so How I can add a series and parallel resistor in the basic model existe can you help me please

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