Non-bias allocation of export capacity for distribution network planning with high distributed energy resource integration

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Date
2021-01
Authors
Cuenca, Juan Jose
Hayes, Barry P.
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Publisher
Institute of Electrical and Electronics Engineers (IEEE)
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Abstract
A novel distributed energy resources (DER) allocation method focused on grid constraints that avoids topological bias is proposed for distribution networks. A technology-agnostic approach is used, where a non-bias allocation of export capacity (NAEC) not specific to generation type is calculated. Moreover, the proposed NAEC is extended from an export capacity into a hosting capacity (HC) using a statistical approach. The methods are tested using the IEEE 33-bus distribution system, and two typical Irish distribution feeders -one urban, one rural- as case studies. Using a high-resolution year-long quasi-static time series simulation (QSTS) and three different generation profiles, the proposed NAEC method is validated against current practices and state of the art allocation methods in terms of active balancing, security of supply, interactions between users, operational concerns, and fairness. Results show that an equivalent or higher level of DER penetration is achieved using the proposed methodology. There are no additional constraint violations using the NAEC methodology, moreover, time slots with violations are reduced, improving security of supply. Furthermore, results suggest that avoiding topological bias makes the network accessible for more users, and prioritises self-consumption.
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Keywords
Circuit faults , Distribution networks , Energy resources , Planning , Power distribution planning , Power distribution reliability , Power generation planning , Reliability , Resource management , Resource management , Search methods , Security , Transformers
Citation
Cuenca, J. J. and Hayes, B. P. (2021) 'Non-bias allocation of export capacity for distribution network planning with high distributed energy resource integration', IEEE Transactions On Power Systems, Article in Press. doi: 10.1109/TPWRS.2021.3124999