© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works

This paper explores the problem of stability of linear time-invariant (LTI), multi-port AC circuits with instantaneous constant-power loads (CPLs), which model the behavior of some point-of-load converters. It is well-known that CPLs have a destabilizing effect that gives rise to significant oscillations or to network collapse, see [3]–[5], [7], and the references therein for a further discussion on the subject and [8] for a recent literature review. Clearly, a sine qua non condition for the correct behaviour of the network is the existence of a steady-state operating condition.

Peer Reviewed