الفهرس 
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Abstract
Recently, the distribution systems have earned a lot of interest by the researchers
because they play a crucial role in the power system quality and planning. The amount
of power losses in power system networks is relatively higher in distribution networks
that operate at lower voltage levels (medium voltage and low voltage) and high current
flow. Losses amount is around 13% of the total power generation. So, many efforts
have been made to reduce these losses. Capacitor banks (C-Bs) and distributed energy
resources (DERs) are two powerful components employed for this purpose and should
be optimally allocated to maximize their impact. C-Bs or/and DERs allocation
problems include determination of optimal locations and sizes of both of them. Many
technical and economic benefits can be achieved by solving these problems to operate
the distribution system satisfactorily and secure. These benefits include improving
system voltage profile, decreasing voltage deviation, improving power factor,
decreasing energy losses, system reliability enhancement, and increasing the annual net
savings.