Multiobjective Optimal Control of Power Electronic Loads in Small Scale Power Systems

This paper introduces an optimal controller for the power electronics loads (PELs) based on the goal attainment multi objective optimization and linear quadratic regulator (LQR) architecture. Optimal set point of the PEL is derived to regulate the desired load demand while maximizing the input bus voltage of the PEL. Then a LQR controller is developed to drive the PEL state to the optimal equilibrium. Dynamic modeling of the PEL is done in the energy and admittance domain. Simulations were carried out to demonstrate the effectiveness and the applicability of the proposed method.