freegs.control.ConstrainPsiNorm2D

class freegs.control.ConstrainPsiNorm2D(target_psinorm, weights=1.0)

Bases: object

Adjusts coil currents to minimise the square differences between normalised psi[R,Z] and a target normalised psi.

__init__(target_psinorm, weights=1.0)

target_psinorm2D (R,Z) array

Must be the same size as the equilibrium psi

weightsfloat or 2D array of same size as target_psinorm

Relative importance of each (R,Z) point in the fitting By default every point is equally weighted Set points to zero to ignore them in fitting.

Methods

__init__(target_psinorm[, weights])	target_psinorm : 2D (R,Z) array
psinorm_difference(currents, eq)	Difference between normalised psi from equilibrium with the given currents and the target psinorm

psinorm_difference(currents, eq)

Difference between normalised psi from equilibrium with the given currents and the target psinorm