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This paper presents proportional integral direct torque control (PIDTC) and fuzzy direct torque control (FDTC) of induction motor (IM) using bus clamped space vector modulation (BCSVM), in which BCSVM always clamps any phase of the inverter for given switching period. Conventionally, the total cost of control scheme significantly increases in real time applications as it needs to sense three voltages,...
This paper presents a novel fast speed response control strategy for the poly-phase induction motor drive system based on flux angle. The control scheme is derived in rotor field coordinates and employs the estimation of the rotor flux and its position. An adaptive notch filter is proposed to eliminate the dc component of the integration of signals used for the rotor flux estimation. To improve the...
A sensorless direct torque controlled (DTC) induction motor drive fed by a 3-level inverter is presented based on discrete space vector modulation. A novel vector synthesis sequence is proposed to solve the problems caused by the topology of the 3-level inverter, such as neutral point unbalance and excessive voltage jump, while maintaining the merits of simplicity and robustness. Fuzzy logic control...
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