... Preface IX Part 1 Power Quality Monitoring, Classification, Measurements, and Analysis 1 Chapter 1 Power Quality Monitoring 3 Kazem Mazlumi Chapter 2 Wavelet and PCA to Power Quality Disturbance ... ,B2A 1 pref , 1 Apref ,CA 1 pref , 1 j32j32kf kfkf k kffffkf k kfffvvvvav ZZvvav ZZ==+=− (19 ) Power Quality – Monitoring, Analysis and Enhancement 10 Apref , 11 012 Apref ... Applied to Power Quality Analysis 11 9 Ricardo A. S. Fernandes, Ricardo A. L. Rabêlo, Daniel Barbosa, Mário Oleskovicz and Ivan Nunes da Silva Power Quality Monitoring 11 Equation (15 ) shows...