Distributed Energy Resources Integration Challenges in Low-Voltage Networks: Voltage Control Limitations and Risk of Cascading

2013 ◽  
Vol 4 (1) ◽  
pp. 82-88 ◽  
Author(s):  
Paulo D. F. Ferreira ◽  
Pedro M. S. Carvalho ◽  
Luis A. F. M. Ferreira ◽  
Marija D. Ilic
Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 390 ◽  
Author(s):  
Anna Di Fazio ◽  
Mario Russo ◽  
Michele De Santis

This paper deals with the problem of the voltage profile optimization in a distribution system including distributed energy resources. Adopting a centralized approach, the voltage optimization is a non-linear programming problem with large number of variables requiring a continuous remote monitoring and data transmission from/to loads and distributed energy resources. In this study, a recently-proposed Jacobian-based linear method is used to model the steady-state operation of the distribution network and to divide the network into voltage control zones so as to reformulate the centralized optimization as a quadratic programming of reduced dimension. New clustering methods for the voltage control zone definition are proposed to consider the dependence of the nodal voltages on both active and reactive powers. Zoning methodologies are firstly tested on a 24-nodes low voltage network and, then, applied to the voltage optimization problem with the aim of analyzing the impact of the R/X ratios on the zone evaluation and on the voltage optimization solution.


Author(s):  
Marija Markovic ◽  
Amirhossein Sajadi ◽  
Anthony Florita ◽  
Robert Cruickshank III ◽  
Bri-Mathias Hodge

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