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This paper proposes a novel control approach which integrates optimal operation and direct torque control (DTC) for motors in a building lift system. The optimal control and operation of lifts is based on fuzzy logic based on the real time data inputs such as original level, destination level, call level, etc. The DTC is used in the motor controller. The fuzzy PID controller in DTC is designed to...
Three equivalent drive train models of a wind turbine generator (WTG) are presented in this paper. The flexibility of the blades bending and the drive train are considered to analyze its transient stability under a three-phase fault. The simulations show that the fifth order lumped-mass model provides too optimistic estimation while the ninth order three-mass model can observe the motion of shaft...
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