Title :
A Weighted Least Squares Algorithm for Optimal PMU Placement
Author :
Manousakis, Nikolaos M ; Korres, G.N.
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece
Abstract :
This letter presents a new method for optimal placement of phasor measurement units (PMU) for complete power system observability. The optimal PMU placement (OPP) problem is formulated as a quadratic minimization problem with continuous decision variables subject to nonlinear observability constraints. The optimal solution is obtained by an unconstrained nonlinear weighted least squares (WLS) approach. Simulations are conducted on different IEEE systems (14-bus, 30-bus, 57-bus, and 118-bus) to prove the validity of the proposed algorithm.
Keywords :
IEEE standards; least squares approximations; phasor measurement; IEEE systems; optimal PMU placement; phasor measurement units; power system; quadratic minimization; weighted least squares algorithm; Linear programming; Observability; Optimization; Phasor measurement units; Polynomials; Power systems; Vectors; Observability constraints; optimal placement; phasor measurement unit; weighted least squares;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2013.2242698
