Substation planning method in an active distribution network under low-carbon economy

Abstract

A substation planning method that accounts for the widespread introduction of distributed generators (DGs) in a low-carbon economy is proposed. With the proliferation of DGs, the capacity that DGs contribute to the distribution network has become increasingly important. The capacity of a DG is expressed as a capacity credit (CC) that can be evaluated according to the principle that the reliability index is unchanged before and after the introduction of the DG. A method that employs a weighted Voronoi diagram is proposed for substation planning considering CC. A low-carbon evaluation objective function is added to the substation planning model to evaluate the contribution of DGs to a low-carbon economy. A case study is analyzed to demonstrate the practicality of the proposed method.

Investments in Electricity Distribution Grids: Strategic versus Incremental Planning

“…Also, ref. [14] introduces a substation planning method that makes use of weighted Voronoi diagrams, underlining its practical applicability. In [15], the strategic and incremental approaches are compared for an investment portfolio consisting of storage and soft open point technologies, while in [16], they are compared for a portfolio of dynamic line rating technology and storage, and in [17], they are compared for a portfolio of EV-related technologies such as Vehicle to Grid and Vehicle to Building.…”

Electricity infrastructure vulnerabilities due to long-term growth and extreme heat from climate change in Los Angeles County

“…In this case, the plane was the geography of LAC, the points were substations and clusters, and the optimization method was shortest distance from polygon boundaries to points. Voronoi Tessellation approaches have been used extensively for substation planning for a variety of geographic optimization problems (Ge et al, 2015;Wang et al, 2014;Zhu et al, 2016). Finally, the CBG resolution peak demand projections were uniformly allocated to the Voronoi polygons based on percent geographic overlap.…”

“…Developing a spatially explicit quantitative understanding of electricity infrastructure vulnerabilities to climate change is critical for long-term capital investment planning (Ge et al, 2015;Zhu et al, 2016). Doing so supports identification of potential future hazards, their magnitude and location, and likewise the siting and sizing of future investments including adaptation projects.…”

Optimal Routing an Ungrounded Electrical Distribution System Based on Heuristic Method with Micro Grids Integration

“…Furthermore, DERs are a promising solution for the implementation of Low Carbon (LC) Technologies in a conventional electrical system. Considering that the power generation industry is a considerable source of CO 2 , a growing number of EDS have connected to DER in order to follow the LC policies [8]. The LC policies suggest countries adopt clear and measurable objectives to reduce emissions.…”