AN UNBALANCED AC SUPPLY THREE-PHASE DEVICE POWER CONTROLLABILITY VICTIMISATION MATHEMATICAL LOGIC CONTROLLER

This paper explains the facility controllability of 3 phase converter with associated unbalanced AC supply by mistreatment symbolic logic controller. Three-phase DC-AC power converters suffer from power oscillation and over current issues just in case of unbalanced AC supply voltage that may be caused by grid/generator faults. Existing solutions to handle these issues square measure properly choosing and dominant the positive and negative sequence currents.during this work a replacement series of management methods that utilize the zero sequence elements square measure projected to boost the facility management ability underneath this adverse condition. A fuzzy logic controller is ruled primarily based logic; it's having additional benefits than different controllers. By mistreatment fuzzy logic controller we tend to get needed output. it's finished that by introducing correct zero sequence current controls and corresponding circuit configurations, the facility converter will change additional versatile management targets, achieving higher performances within the delivered power and cargo current once affected by unbalanced AC supply