Abstract
Improvements in power system control and
protection is achieved by utilizing real time synchronized
phasor measurements. The trend in recent years is the
steady increase of Phasor Measurement Unit (PMU)
installations worldwide for various applications those
targeted for State Estimation enhancement. This paper
solves the optimal placement of phasor measurement
units for complete observability using Integer Linear
Programming (ILP) solution methodology.ILP is used to
determine the minimum optimal number and location of
PMUs needed to make the network observable. The
method is tested on the Tamil Nadu Electricity Board
(TNEB) 110 KV (North and South), 230 KV sub network
of Chennai and 400 KV network of Southern Region and
complete system observability has been validated.
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