INSTANTANEOUS DIRECT CONTROL OF BOTH MAGNETIC FLUX AND OUTPUT POWER OF INDUCTION MOTORS USING FUZZY LOGIC CONTROLLER

Recently, numerous researches are dedicated to Direct Power Control (DPC) which is adopted in both rectifiers and grid-connected inverters to improve the power quality indices. In this paper, the possibility of using direct power control method for three-phase induction motors via voltage source converters is surveyed. A mechanism is proposed to control the instantaneous output active power as well as the magnetic flux directly. The reference active power is determined through the fuzzy logic controller. Simulations in different situations verify the performance of controller.