Generic stabilization strategy for the modern power electronic system

Abstract

This dissertation focuses on the stability issue of the modern power electronic system. The power electronic system is a multi-converter system, a number of converters exhibit the constant power loads behavior, which may lead to the instability of the system. Firstly, some background knowledge and system models are introduced, following this, it explains the criterion used to judge stability of the system. Further, two types of damping as solutions to the negative incremental impedance are presented. The corresponding constraints are listed to determine whether the design meets the stability requirements. Consequently, the validity of both approaches is verified by simulations and experimental results.