Adaptive protection and control strategy for interfacing wind-power electricity generators to distribution grids

Abstract

Recently electricity generation from wind power has been increasingly popular worldwide. This paper proposes an adaptive protection and control strategy for interfacing the wind-powered distributed generators into the utility power distribution grids. The requirements for the interfacing are defined according to the IEEE-1547 standards. This paper presents the adaptive interfacing controls and protections for three common types of wind-powered generators: doubly-fed induction generators, permanent-magnet synchronous generators, and squirrel-cage induction generators. The design for the adaptive protection and control presented in this paper uses state-of-the-art digital signal processing technology and modern computer networking technology. This paper presents a new two-layer computer network architecture for real-time monitoring the operations as well as the impacts of wind-powered electricity generations in the utility distribution systems. This architecture is fault tolerant and is designed for monitoring power distribution systems with multiple (over hundred) feeder nodes.