TY - CHAP A1 - Alexis Polycarpou ED1 - Gregorio Romero Rey ED2 - Luisa Martinez Muneta Y1 - 2011-11-21 PY - 2011 T1 - Power Quality and Voltage Sag Indices in Electrical Power Systems N2 - The utilization of renewable energy sources such as wind energy, or solar energy, among others, is currently of greater interest. Nevertheless, since their availability is arbitrary and unstable this can lead to frequency variation, to grid instability and to a total or partial loss of load power supply, being not appropriate sources to be directly connected to the main utility grid. Additionally, the presence of a static converter as output interface of the generating plants introduces voltage and current harmonics into the electrical system that negatively affect system power quality. By integrating distributed power generation systems closed to the loads in the electric grid, we can eliminate the need to transfer energy over long distances through the electric grid. In this book the reader will be introduced to different power generation and distribution systems with an analysis of some types of existing disturbances and a study of different industrial applications such as battery charges. BT - Electrical Generation and Distribution Systems and Power Quality Disturbances SP - Ch. 6 UR - https://doi.org/10.5772/18181 DO - 10.5772/18181 SN - PB - IntechOpen CY - Rijeka Y2 - 2019-11-18 ER -