A Current Control Scheme for a Bi-Directional AC-DC Power Converter with Power Factor Correction by Using FLC for DC Micro Grid

Secondary controllers for hydrothermal multisource hydraulic systems (MSHS) have been built in this chapter using PDICs and FLCs. Two control areas are linked by a tie line, and each control area includes both hydroelectric and thermoelectric energy systems. Conventional controllers are unable to manage the frequency and power oscillations caused by a load that changes with time and load. A proportionally dual integral controller and a fuzzy logic controller have been designed to stabilize the switching frequency and enhance the dynamic characteristics of a multi-area, multi-source hydro thermal system.