Abstract:
Conventional distribution systems are transforming into smarter networks by accommodating renewable energy resources, communication infrastructure, and control devices. W...Show MoreMetadata
Abstract:
Conventional distribution systems are transforming into smarter networks by accommodating renewable energy resources, communication infrastructure, and control devices. While the grids are transforming to be smart grids, issues relating to grid stability and control are emerging due to proximity and interactions among generator units and associated controllers. The existence of low damped oscillations could be harmful to power transfer capacity and generator stability. This paper presents small signal stability and control issue of emerging distribution systems. A robust control methodology for motor load current is proposed for stability enhancement. System loads are ranked based on their relative influence on small signal instability. The proposed methodology controls current of the selected motor load during system disturbances to improve overall small signal stability of the distribution system. The proposed methodology has been successfully implemented on a 16-bus distribution network.
Published in: IEEE Transactions on Smart Grid ( Volume: 9, Issue: 4, July 2018)