MATLAB: How to solve equation using lambert w function

Question

I= I_L – I_(o ) [e^((q(V+I*R_s )/a*k*T) )-1] – (V+I*R_s)/R_sh I want to solve this equation to know the value of R_s, a, R_sh using lambert w function. Except these three unknown all other parameters are known. Basically this equation is solar cell one diode model equation.

Answer 1

You cannot solve a single expression to get three variables. You could find the relationship between three variables but not the three individually.