Matrix operator error in matlab2019a

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tobi alabi
tobi alabi 2020-1-8
评论： Hiro Yoshino 2020-1-8
Please, can someone help to check what maybe wrong with this code, though it is a part of the entire script
dt=1; % Time step
nHours=numel(LD);
Time=(1:nHours)';
idxHr2Toend=2:nHours;
(NOMb*SOCb(idxHr2Toend-1,:))-Et(idxHr2Toend,:)+(echb*Pbch(idxHr2Toend,:)*dt)-((Pbdch(idxHr2Toend,:)*dt)/edchb)==0;
This the error that keep showing:
Error using optim.internal.problemdef.MatrixOperator
Incorrect dimensions for matrix multiplication. Check that the number of columns in the first matrix matches the number of rows in
the second matrix. To perform elementwise multiplication, use '.*'.
Error in optim.internal.problemdef.Mtimes
Error in *
Error in mescode2019 (line 201)
mesprob.Constraints.Batstoredele=(NOMb*SOCb(idxHr2Toend-1,:))-Et(idxHr2Toend,:)+(echb*Pbch(idxHr2Toend,:)*dt)-((Pbdch(idxHr2Toend,:)*dt)/edchb)==0;
Thanks

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回答（1 个）

Hiro Yoshino
Hiro Yoshino 2020-1-8
As it said, have you tried this one?:
To perform elementwise multiplication, use '.*'.
Imagine that you want to multiply/devide the elements of two matrix (element wise)
A.*B
A./B
would work for you.
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tobi alabi
tobi alabi 2020-1-8
thanks once again...
the model is for battery storage formulatio0n, that is why i have NOMb.*SOCb(idxHr2Toend-1,:) and Et(idxHr2Toend,:) to cater for the current time step and the previous time step i.e t and t-1

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