To add to the above answer, the 3D LUT option creates a 3D table for both id, iq values that depend on three parameters, namely, torque, speed and voltage. The voltage becomes third dimension of the LUT (3D matrix). The voltage array for the third dimension can be provided as voltage breakpoint vector.
Alternatively, you may also select the 2D LUT(scaled Omega based) for few cases which involve less voltage variation. This essentially implements an algoritm that uses the 2D LUTs for id, iq (which depend on speed and torque, and calculated at the Reference Vdc value from the mask's text input field) at a reference Vdc to compute the id, iq reference values at a input Vdc (from the input port). This is close to the above method, when the motor's Rs is less.
the 2D LUT option saves memory when this block is used for code-generation. The 3D LUT option works well even when the motor's resistance is high.
Hope this helps.
