In order to verify the effectiveness of the optimized charging model presented in
this chapter, a typical charging pattern for comparison is adopted. It is a common
charging pattern of “plug and charge”, the charging profile of which is consistent
with the charging characteristics of battery. Nevertheless, the charging profile may
not follow the charging characteristics of battery in the optimized charging pattern,
as it is determined by optimized charging algorithm which has been stated in
previous section of this chapter. The charging cost and energy demand in different
time are compared separately in two cases: single EV and multi-EV. In multi-EV
case, the diversity of initial SOC and the starting charging time of different EVs
should be considered. A probability model is introduced to describe the diversity,
which will be discussed later. For single EV case, the randomness of initial SOC
and the starting time of charging are neglected and assigned with specified value so
as to get determined results, which is beneficial for us to understand the optimized
charging model. In the following section, settings and results of simulation will be
presented.