PD IEC TR 62933-200:2021 PDF

1   Scope This part of IEC 62933, which is a Technical Report, presents a case study of electrical energy storage ( EES ) systems located in electric vehicle ( EV ) charging stations with photovoltaic ( PV ) power generation ( PV - EES - EV charging stations) with a voltage level of 20 kV and below. EES systems are highlighted in this document because they are a desired option to make the charging stations (especially the high-power fast charging stations) grid-friendly, improve the self-consumption of clean energy generation, and increase the revenue of stations. In this application, EES systems show excellent performance by running in a variety of available operating modes, such as peak shaving, power smoothing, load tracing, time-of-use ( TOU ) price arbitrage, and ancillary services. The general duty cycle is recommended based on the summary of the operation characteristics of the EES systems. This document includes the following elements:

– overview of general PV - EES - EV charging stations;

– operational analysis of EES systems in typical project cases;

– summary and recommendati...