Distributed Energy Resources; Optimal power flow; Virtual power plants; Unbalanced three-phase network
Abstract :
[en] This paper considers the problem of controlling distributed energy resources (DERs) in a distribution network (DN); the paper
focuses on the voltage regulation task and on the concept of virtual power plant (VPP). For the latter, we envision an aggregation
of DERs as a VPP that tracks power setpoints at the point of common coupling to provide ancillary services to the bulk power
system. We propose a feedback-based controller that pursues solutions to a time-varying AC optimal power flow problem. This
controller ensures voltage constraints are met in real time, assuming no voltage measurement errors. The feedback from the
system mitigates the controller sensitivity to model uncertainties and eliminates the need for measurements of uncontrollable
loads at every node. The feedback-based controller is tested on the IEEE37-node system with delta and wye-connected devices
in a strongly unbalanced configuration.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Colot, Antonin ; Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Smart-Microgrids
Cornélusse, Bertrand ; Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Smart-Microgrids
Cortés, Jorge; UCSD - University of California, San Diego [US-CA] > Department of Mechanical and Aerospace Engineering
Dall'Anese, Emiliano; Boston University [US-MA] > Department of Electrical and Computer Engineering
Language :
English
Title :
Feedback-based safe gradient flow for optimal regulation of virtual power plants
