Trying to multiply these matrices and getting error "Dimensions of arrays being concatenated are not consistent."

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Christopher Rodriguez
评论： Christopher Rodriguez 2021-10-3
clear all
close all
clc
Xqs = 0.051; Xds = 0.051; Xmd = 0.0483; Rs = 0.055;
delta = 35;
iqds = [Rs,Xqs;-Xds,Rs];
Ifd = 0:500;
po = 6;
vll = sqrt(2/3)*208;
vm = sqrt(2/3)*vll;
vqs = vm*cos(delta);
vds = -vm*sin(delta);
E = Xmd*Ifd;
vqs_ = vqs - E;
V = [vqs_;vds];
I_out = inv(iqds)*V;
iqs = I_out(1,:);
ids = I_out(2,:);
P = (3/2).*(vqs.*iqs+vds.*ids);
Q = (3/2).*(vqs.*iqs-vds.*iqs);
T = (3.*po.*Xmd.*Ifd.*iqs)./4;
plot(P,Ifd)
grid on
------------------Command Window
Error using vertcat
Dimensions of arrays being concatenated are not consistent.
Error in Project_3 (line 146)
V = [vqs_;vds];

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回答（1 个）

the cyclist
the cyclist 2021-10-3
vqs_ is a 1x501 vector. You can't concatenate the scalar vds to it vertically, which is what you are trying to do.

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