Abstract
For voltage control and system
stability, reactive power is essential. Electric
power systems use a variety of Volt/VAR
techniques to keep the voltage profile within a
predetermined, acceptable range, providing
stability, reliability, and economic benefits.
Reactive power has traditionally been generated
by large-scale synchronous generators or
distributed capacitor banks to allow proper
transmission and distribution level system
management, while it may also be used to
reduce overall system running costs. The
expenses related to acquiring and using fuel to
generate electricity in power plants are referred
to as fuel costs or operating costs of a power
system. These costs may vary depending on the
fuel type (coal, natural gas, oil, or renewable
sources) and the efficiency of the power
generation process. This operational cost
decrease will be accomplished by altering nodal
reactive power, which will impact network
power flow. The main objective of this study is
to determine the best course of action in a
system where variable reactive power mostly
reduces the portion cost. The performance and
applicability of the proposed approach are
validated using IEEE 30-bus.