How to input values from workspace to PV array Block?

3 次查看（过去 30 天）
Jack Danby
Jack Danby 2019-9-3
评论： adham osama 2021-2-6
I have currently created a simple model containing the PV array block from library location - Simscape / Electrical / Specialized Power Systems / Renewables / Solar, I am trying to input the specifications of the module data for the 'Voc' using a variable (ie. Volt_oc) from the Workspace. But when i do so i am getting this error:error.JPG
or if i use the 'set_param' command in script i am getting this error also:
error2.JPG
It works perfectly fine if i was to input a number into the PV array block, but as i have a loop containing multiple values to simulate, i would like to use a variable from the workspace to minise human interaction.
  2 个评论
Fangjun Jiang
Fangjun Jiang 2019-9-3
What number did you put in that makes it work fine?
What variable and what its value did you try to put in?
Jack Danby
Jack Danby 2019-9-6
If i were to place any number it will work, or if i place anything in there that is not a number, i have tried multiple variables and nothing is accepted, i am getting this error when i press apply

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Naveen Venkata Krishnan
Hello Jack ,
From the question I understood that you are changing the "Module" in the "Module data" of the PV array to unser defined thereby you can define a new PV module and assuming that you might be using MATLAB 2019a
Module data -> Module -> user defined.
The PV array module that you are using is a masked block, it has it's own workspace hence directly giving varible values from Base work space.
In order to read the data from the base workspace follow these steps :
1 . In the field where the value has to be accessed from workspace ( here open circuit voltage )
step-1.png
2 . Then click on "Voc: Create..." which will lead you to this
step-2.png
Enter the value( < expression > , here I have given it an intial value of 40 ) you want to assign to the variable in workspace "Voc" and then press create
3 . This will create a variable Voc in work space as shown
step-3.png
This variable can now be called from SIMULINK as any other MATLAB variable
  1 个评论
adham osama
adham osama 2021-2-6
The problem is the need to use variables directly from matlab base workspace which has been initialized in an m-file, for example.
Example: these variables are defined in an m-file
I_sc = 4.37; % [A]
V_oc = 42.93; % [V]
using a variable name for Ncell generates another error : Matrix dimensions must agree
Btw, same error occurs when using your method and tring to click "apply".

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Switches and Breakers 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by