TITLE:
Improving Voltage Stability of Power System by Optimal Location of FACTS Devices Using Bio-Inspired Algorithms
AUTHORS:
Archana Naganathan, Vidhyapriya Ranganathan
KEYWORDS:
BAT, FACTS, Optimal Location, PSO, STATCOM, UPFC, Voltage Stability
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.6,
May
13,
2016
ABSTRACT: Power system operations
can be optimized using power electronics based FACTS devices. The location of
these devices at appropriate transmission line plays a major role in their
performance. In this paper, two bio-inspired algorithms are used to optimally
locate two FACTS devices: UPFC and STATCOM, so as to reduce the voltage
collapse and real power losses. Particle swarm optimization and BAT algorithms
are chosen as their behaviour is similar. VCPI index is used as a metric to
calculate the voltage collapse scenario of the power system. The algorithm is
tested on two benchmark power systems: IEEE 118 and the Indian UPSEB 75 bus
system. Performance metrics are compared with the system without FACTS devices.
Application of PSO and BAT algorithms to optimally locate the FACTS devices
reduces the VCPI index and real power losses in the system.