Ever since the introduction of State Estimation (SE) by
F.C. Schweppe in the late of 1970 [2-4], various techniques
have been proposed to solve a SE [5-9]. A statistical SE
algorithm estimates the voltage magnitudes and angles and
power flow at each node by using the real-time measurements,
network data and load data [10]. A fundamental static state
estimation algorithm by utilizing Weighted Least Square
(WLS) method is presented in [11]. In this paper, WLS
method is implemented based on singular value
decomposition in contrast with the normal equation. A state
estimator based on voltage and current waveform
measurement, multiphase model and synchronized
measurement is presented in [12]. Afterwards, the three phase
state estimation is achieved by implementing least square
method for radial distribution system [13].