Descripción: “...A unified power flow controller UPFC is one of the flexible AC transmission systems FACTS, devices which offer greater capabilities for interacting with operation and variables of an electric power system, and can be an optimal solution for the additional control requirements on a modern system. ...”

Descripción: “...Basic water quality parameters and some sources of urban pollution were studied. The results showed that parameters such as total suspended solids have a high variability, especially in the residential area, which makes it difficult to control the activities carried out there. ...”