ODE solver for coupled equations

3 次查看（过去 30 天）
Josh
Josh 2016-6-28
评论： Star Strider 2016-7-1
Hi,
I have a set of equations I am trying to solve using an ODE solver. I originally posted on this thinking about using ODE45. After looking into this more, I'm not too sure ODE45 is the best solver since they are highly coupled. I'm now looking at ODE15s. Are there any suggestions? My code is below.
Also, I am getting an error when running my code. I am trying to use dxdt(2) in the equation for dxdt(1) and also use dxdt(1) in the equation for dxdt(2) and dxdt(3). The error is "Undefined function or variable dxdt".

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2016-6-28
See if this helps:
...
iLoad = vC/Rload;
dxdt = zeros(7,1);
dxdt(1,:) = (x*(Vs - vC) + y*(-vj1 - dxdt(2) - vC))/L; % diL/dt
...

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Ordinary Differential Equations 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by