Voltage Regulation Utilizing Electric Vehicle Rapid Chargers in a Distribution System

Abstract

From growing interests in the environment issues, promotion of photovoltaic power generation (PV) is accelerated in the world. Meanwhile, rapid chargers (RCs) for popularized electric vehicles are being installed in urban areas. These two trends in distribution system might cause severer voltage fluctuation problems. On the other hand, a RC can provide the reactive power support, which is capable of voltage regulation. Based on this viewpoint, this paper proposes a new framework of voltage regulation, in which the reactive power compensation by RCs is actively utilized. The proposed voltage regulation method combines two different control functions with consideration for overcompensation avoidance. This paper ascertains the validity of proposed voltage regulation method through numerical simulations. C⃝ 2018 Wiley Periodicals, Inc. Electr Eng Jpn, 204(3): 21-30, 2018; Published online in Wiley Online Library (wileyonlinelibrary.com).

A two-level coordinated voltage control scheme of electric vehicle chargers in low-voltage distribution networks

“…Extensive advanced control approaches have been proposed within these three categories [18]- [22]. In [19], a decentralized voltage regulation strategy based on electric vehicle rapid charger is proposed. From the perspective of power electronics, the reactive power support from electric vehicle charging station is analyzed in [20].…”