Minimum energy control
In control theory, the minimum energy control is the control that will bring a linear time invariant system to a desired state with a minimum expenditure of energy.
Let the linear time invariant (LTI) system be
with initial state . One seeks an input
so that the system will be in the state
at time
, and for any other input
, which also drives the system from
to
at time
, the energy expenditure would be larger, i.e.,