无法解决Simulink FOC模型中的端口尺寸错误

我无法打开您的模型。但是从您的屏幕截图中，我看到以下内容：

• The little numbers at the signal arrows denote how many signals are in this path. I think it should be always 1 (in your model), except for the three-phase currents, where it should be 3. So everywhere you find a 2 something is wrong.
• The probable mistake is, that you Demux the PhaseCur in the lower right corner into only 2 signal paths. For whatever reason it appears that the Clarke transform only demands for the phases a and b, but not c. But instead of dropping c you feed it into the block together with a (or a and b together, with c aside, for that matter). So instead of a 2-Way-Demux before, use a 3-Way-Demux and get rid of phase c before the Clarke transform.

This is the most apparent mistake until now, try if it works.

The documentation of the Clarke transform block states:

该模块接收三相（abc）中的两个信号，自动计算第三个信号，并在αβ参考帧中输出相应的分量。例如，该块接受a和b输入值，其中a相轴与α轴对齐。