In electrical power systems, shunt capacitive compensation is widely employed
to reduce the active and reactive power losses and to ensure satisfactory voltage
levels during excessive reactive loading conditions. Shunt capacitive compensation
devices are normally distributed throughout transmission or distribution systems
so as to minimise losses and voltage drops. There are two types of shunt compensa-
tion: active and passive. For passive compensation, shunt capacitors have been
extensively used since the 1930s. They are either permanently connected to the
system, or switched, and they contribute to voltage control by modifying character-
istics of the network.
1
Improvements in the fi
eld of power electronics have had a
major impact on the development of shunt active compensators, which are Static
Var Compensator (SVC) and Static Compensator (Statcom) devices. One of the
most important applications of such devices is to keep system voltage profi
les at
desirable levels by compensating for the system reactive power. By employing these
devices for reactive power compensation, both the stress on the heavily loaded lines
and losses are easily reduced as a consequence of line loadability, which is
increased
In electrical power systems, shunt capacitive compensation is widely employed
to reduce the active and reactive power losses and to ensure satisfactory voltage
levels during excessive reactive loading conditions. Shunt capacitive compensation
devices are normally distributed throughout transmission or distribution systems
so as to minimise losses and voltage drops. There are two types of shunt compensa-
tion: active and passive. For passive compensation, shunt capacitors have been
extensively used since the 1930s. They are either permanently connected to the
system, or switched, and they contribute to voltage control by modifying character-
istics of the network.
1
Improvements in the fi
eld of power electronics have had a
major impact on the development of shunt active compensators, which are Static
Var Compensator (SVC) and Static Compensator (Statcom) devices. One of the
most important applications of such devices is to keep system voltage profi
les at
desirable levels by compensating for the system reactive power. By employing these
devices for reactive power compensation, both the stress on the heavily loaded lines
and losses are easily reduced as a consequence of line loadability, which is
increased
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