Amplitude Death Solutions for Stabilization of DC Microgrids With Instantaneous Constant-Power Loads

Abstract

Constant-power loads on dc microgrids create a destabilizing effect on the circuit that can lead to severe voltage and frequency oscillations. Amplitude death is a coupling induced stabilization of the fixed point of a dynamical system. This paper applies amplitude death methods to the stabilization problem in this constant-power setting. The amplitude death methods provide an open-loop control solution to stabilize the system. Two methods, one using delay, the other using circuit heterogeneity, are examined. Each method is demonstrated through numerical simulations.