Abstract
The authors introduce a methodology which quantifies medium-voltage (MV) feeder reliability in the form of commonly used indices. The contribution of the proposed methodology focuses on the modelling not only of the grid itself but also of the detailed actual operational practices of the distribution system operator (DSO), taking into consideration the specific parameters of the examined network. By doing so, the influence of diverse reliability enhancement measures on different feeders can be evaluated and assessed. The method is tested using real (MV) feeders, considering as measures the installation of protection units and remote control capabilities to the switches. Furthermore, by considering the cost of protection and remotely controlled units, the proposed methodology performs techno-economic analyses to assess the trade-offs between enhancing grid reliability and increasing costs, serving as a decision-making tool for modern DSOs.
Highlights
Distribution grids are experiencing many changes lately caused by the introduction of renewable energy resources and new types of load in medium-voltage (MV) and low-voltage grids
The contribution of the proposed methodology focuses on the modelling of the grid itself and of the detailed actual operational practices of the distribution system operator (DSO), taking into consideration the specific parameters of the examined network
Standard power system analysis software, e.g. NEPLAN [5] or SINCAL [6], offer tools for reliability studies, they are inflexible in terms of modelling specific DSO procedures that lead to the calculation of realistic reliability indices
Summary
Distribution grids are experiencing many changes lately caused by the introduction of renewable energy resources and new types of load in medium-voltage (MV) and low-voltage grids. Such changes pose new challenges to distribution system operators (DSOs) which need to consider technical grid constraints and regulatory aspects. Concerning the latter, in many European countries there is pressure to reduce grid costs, e.g. through incentive-based regulation, without compromising the reliability of supply. By performing a techno-economic analysis, the trade-offs between enhancing grid reliability and increasing costs can be assessed, making the tool suitable to assist DSOs in their decision-making process
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
