Tracking and Linkage Control Methods of Distributed Generation Based on Passivity Characteristics: Tolerance to Voltage Sag

Abstract

This paper investigates tracking and linkage control methods between distributed generations and power system networks based on passivity characteristics. The proposed tracking control method focuses on the energy stored in inductors and capacitors in the operating system. In addition, the proposed linkage control method maintains the phase synchronization of distributed generations. It is numerically and experimentally clarified that the proposed control methods achieve tracking targeted states and stable linkage with the power system networks at an abrupt voltage sag.