Pilot bus selection in automatic voltage control
Jian Zhou · Dianli zidonghua shebei · 2012
The difficulty in the pilot bus selection is to determine its reasonable amount for each control zone.The principal component analysis and factor analysis method in the multivariate statistics theory are introduced to it,which takes the reactive voltage sensitivity matrix as the sample matrix,determines the amount of pilot bus according to the accumulative eigenvalue contribution rate of its correlation matrix,and selects the pilot buses according to the numerical distribution characteristics of factor loading matrix.Simulative result shows that,the pilot buses thus selected can reduce about 44 percent of the voltage sags caused by load raise in automatic voltage control.