Open AccessRaising the potential of a local market for the reactive power provision by electric vehicles in distribution grids
Author(s) -
Sousa Tiago,
Hashemi Seyedmostafa,
Andersen Peter Bach
Publication year - 2019
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2018.5947
Subject(s) - ac power , flexibility (engineering) , grid , electric power system , voltage , environmental economics , electric vehicle , automotive engineering , reliability engineering , risk analysis (engineering) , business , computer science , power (physics) , electrical engineering , engineering , economics , physics , mathematics , quantum mechanics , geometry , management
The promotion of electric vehicles (EVs), triggered by environmental concerns, can also increase the flexibility of power systems through ancillary services, such as frequency regulation among others. Nevertheless, EV penetration has increased the concern regarding voltage drops in distribution grids. This concern has motivated researchers to examine EV reactive power provision to mitigate such problems. This work proposes a local market perspective to promote EV reactive power provision, enabling distribution system operators to control the voltage level using cost‐effective solutions. The authors propose the extension of a centralised control framework that schedules EV frequency regulation to optimise the reactive power provided by the same EVs. Additionally, extra power losses in chargers while EVs provide reactive power were investigated, and the associated cost in the economic evaluations were considered. A test‐case with the IEEE 33‐node distribution grid is used to assess the market potential of EV reactive power provision. This new service extends EV penetration in a cost‐efficient way without causing voltage problems. The simulation concludes that it is economically feasible to use EVs for reactive local provision with efficient chargers. These outcomes sustain the potential of promoting such new EV services through a proper market in distribution grids.