reversing the lookup table for flux based pmsm modelling, how to reverse the data Ψd(id,iq) , Ψq(id,iq) into id( Ψd, Ψq) and iq( Ψd, Ψq).

i have this data Ψd(id,iq) and Ψq(id,iq) (here id, iq are independent variables) is there any way to reverse the available data into the id( Ψd, Ψq) and iq( Ψd, Ψq) form (here Ψd, Ψq are independent variables).

Answer 1

[Torsten]

Use "fsolve" to solve for id, iq given psi_d, psi_q.

In other words, solve the two equations

psi_d(id,iq) - psi_d_given = 0
psi_q(id,iq) - psi_q_given = 0

for id, iq.