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Open AccessArticle

Distribution System Renewable Hosting Capacity Maximization with Second-use Electric Vehicle Storage Using Critical Capacity Retention Calculation Model

1
State Grid Zhejiang Electric Power Research Institute, Hangzhou 310006, China
2
Shanghai University of Electric Power, Shanghai 200090, China
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(4), 552; https://doi.org/10.3390/electronics9040552
Received: 7 February 2020 / Revised: 24 March 2020 / Accepted: 24 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue Automation and Electrical Grids)
The continuous increase of the penetration of distributed generation in the distribution network poses more severe challenges for its full accommodation. In this context, an energy storage system can be installed to enhance the ability to accommodate renewable energy because of its high flexibility. However, the investment cost of brand new energy storage equipment is so high that the widespread application of storage system in the distribution system has been limited. This article proposes a method, which aimed at optimizing energy storage dispatching in a distribution network, and takes the use of second-use electric vehicles (EV) batteries into account. A calculation model of power battery second-use capacity was established, the upper and lower bounds of the initial capacity of second-use energy storage system (SUESS) can be determined after the reorganization of the retired batteries, and then a multi-objective optimal dispatching model for the distribution system with SUESS can be established with reference to the capacity attenuation model and the daily mileage statistics model of the electric vehicle. The case study results show that configured SUESS in the distribution network can not only meet the needs of the distribution network to fully accommodate distributed generation, but also delay the upgrade of the distribution network.
Keywords: second-use; electric vehicle batteries; battery capacity degradation; distribution network; renewable hosting capacity second-use; electric vehicle batteries; battery capacity degradation; distribution network; renewable hosting capacity
MDPI and ACS Style

Jiang, H.; Tong, L.; Zhao, J.; Zhang, Q.; Zhao, J.; Zhou, J. Distribution System Renewable Hosting Capacity Maximization with Second-use Electric Vehicle Storage Using Critical Capacity Retention Calculation Model. Electronics 2020, 9, 552.

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