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This paper presents a comprehensive analysis of the direct torque and flux control (DTFC) scheme for interior permanent magnet synchronous motor (IPMSM) drives. Closed-loop regulation of the torque and stator flux linkage are achieved via two independent proportional-integral (PI) controllers. The reference voltage vectors are generated by a space vector modulation (SVM) unit. A mathematical analysis...
This paper presents a comprehensive analysis of the direct torque and flux control (DTFC) scheme for interior permanent magnet synchronous motor (IPMSM) drives. Closed-loop regulation of the torque and stator flux linkage are achieved via two independent proportional-integral (PI) controllers. The reference voltage vectors are generated by a space vector modulation (SVM) unit. A mathematical analysis...
This paper investigates a sensorless direct torque and flux control (DTFC) scheme for IPM synchronous motor (IPMSM) drives at low speed and standstill. Closed-loop control of both the torque and stator flux linkage are achieved using two proportional-integral (PI) controllers. A high frequency signal injection technique is utilized at low speeds to obtain the rotor position information. The hybrid...
This paper investigates the application of an Extended Kalman Filter (EKF) for closed-loop flux, torque and speed estimation of a direct torque controlled (DTC) IPMSM drive over a wide speed range. The EKF provides a recursive optimum state estimation for IPMSMs using terminal signals that may be polluted by noise. Furthermore, the EKF has robustness to parameter variations, disturbance rejection...
This paper investigates a sensorless direct torque and flux control (DTFC) scheme based on space vector modulation (SVM) for interior permanent magnet synchronous motor (IPMSM) drives over a wide speed range. Closed-loop control of both the torque and stator flux linkage are achieved by using two proportional-integral (PI) controllers. The reference voltage vectors are generated by a SVM unit. A high...
This paper investigates a sensorless direct torque control (DTC) scheme based on space vector modulation (SVM) for interior permanent magnet synchronous motor (IPMSM) drives over a wide speed range. Closed-loop control of both the torque and stator flux linkage are achieved by using two proportional-integral (PI) controllers. The reference voltage vectors are generated by a SVM unit. A high frequency...
This paper investigates a sensorless direct torque and flux control (DTFC) scheme for IPM synchronous motor (IPMSM) drives at low speed and standstill. Closed-loop control of both the torque and stator flux linkage are achieved using two proportional-integral (PI) controllers. A high frequency signal injection technique is utilized at low speeds to obtain the rotor position information. The hybrid...
This paper investigates a modified direct torque control (DTC) scheme based on space vector modulation (SVM) for interior permanent magnet synchronous motor (IPMSM) drives. Closed-loop control of both the torque and stator flux linkage are achieved by using two proportional-integral (PI) controllers. The reference voltage vectors are generated by a SVM unit, which replaces the switching table in the...
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