simulink仿真时出现Evaluation of expression resulted in an invalid output. Only finite double vector or matrix outputs are supported
时间: 2024-04-03 22:33:33 浏览: 34
这个错误通常是由于模型中某个子系统的输出不是有限的双精度向量或矩阵引起的。为了解决这个问题,你可以尝试以下几个步骤:
1. 检查模型中的每个子系统的输入和输出。确保它们是正确的类型和维度。
2. 检查模型中使用的每个函数或运算符的输入。确保它们是正确的类型和维度,并且不会返回无限或 NaN 值。
3. 检查模型中使用的每个参数和变量的值。确保它们是有限的双精度值。
4. 如果你使用了 MATLAB 函数块,确保它们返回有限的双精度向量或矩阵,并且在函数块中使用的变量和参数都是有限的双精度值。
如果你仍然无法解决问题,可以尝试将模型分解为更小的子系统,并逐个调试每个子系统,以确定哪个子系统引起了问题。
相关问题
如何解决simulink仿真出现Error in port widths or dimensions. Output port 1 of 'untitled1/Varying PID Controller' is a one dimensional vector with 2 elements.
对于这个问题,您可以尝试检查输出端口1的向量大小是否与其他端口或系统的要求相匹配。您也可以尝试更新端口的数据类型或重置Simulink模型并重新运行仿真。如果问题仍然存在,您可以尝试查找更多关于此错误的信息,并尝试解决它。
simulink仿真时出现Index exceeds matrix dimensions. The array freq is empty and therefore has no valid indices.
The error message "Index exceeds matrix dimensions. The array freq is empty and therefore has no valid indices" typically occurs in Simulink when you try to access an element of an empty array. This could be caused by a few different things:
1. Check if the variable "freq" has been initialized properly and has some data in it. If it is empty, you will get this error message.
2. Check if the dimensions of the variable "freq" match the dimensions of the index you are trying to access. If they don't match, you will get this error message.
3. Check if there is an issue with the input or output signals of your Simulink model that is causing the "freq" variable to be empty.
Try to debug your model and see if you can identify the root cause of the issue.