摘要：The current state estimators need to estimate the power system by means of the state variables
i.e. voltage and current phasors accurately. Phasor measurement unit (PMU) is becoming a
most prominent tool for monitoring, control and protection of electric networks, and hence it
is required to employ them for the present and future power system networks. An optimal PMU
placement (OPP) is quite important during planning studies for both existing and future power
networks. So, when a new state estimator commissioned, or an existing estimator is up-graded,
the problems of minimizing the number of PMUs and their optimal location for system
complete observability will come into picture. The approach, in this paper, a Binary Cuckoo
Search(BCS) method for system complete Observability based optimal PMU placement
problem subjected to all possible contingencies and PMU communication channel limitations is
suggested. The suggested method is tested with some of standard IEEE test systems and have
been practiced for different State Level Regional power Grids (SLRGs) of the Indian power
system. The results from the suggested method are also compared with the methods that have
been already applied for standard IEEE test systems and SLRGs, and were proved to be best
and effective.
关键词：optimal PMU placement (OPP); Binary Cuckoo Search(BCS); power system obsrevability;;
Line/PMU outage; channel limits.
