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Fig. 3 System configuration of field-oriented PMSM | Fig. 4 shows a direct torque controlled PMSM drive system. In the late 1990's, DTC techniques for the Permanent Magnet Synchronous Machine (PMSM) machines have appeared [4]. Estimation of the Torque and the flux Linkage

Figure 3 System configuration of field-oriented PMSM | Fig. 4 shows a direct torque controlled PMSM drive system. In the late 1990's, DTC techniques for the Permanent Magnet Synchronous Machine (PMSM) machines have appeared [4]. Estimation of the Torque and the flux Linkage

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Fig. 1 Functional schema of the Park model Fig. 1 presents the model of PMSM in d-q axis: III. DESCRIPTION OF FIELD-ORIENTED CONTROL AND DIRECT TORQUE CONTROLS SCHEMES The primary principle in controlling a PMSM drive is based on field orientation. Since the magnetic flux generated from
Fig. 1 Functional schema of the Park model Fig. 1 presents the model of PMSM in d-q axis: III. DESCRIPTION OF FIELD-ORIENTED CONTROL AND DIRECT TORQUE CONTROLS SCHEMES The primary principle in controlling a PMSM drive is based on field orientation. Since the magnetic flux generated from
The hysteresis PWM current control, also known as bang- bang control, is done in the three phases separately. Each controller determines the switching-state of one inverter half- bridge in such a way that the corresponding current is maintained within a hysteresis band ai [9]. Fig. 2 Hysteresis PWM, current control and switching logic
The hysteresis PWM current control, also known as bang- bang control, is done in the three phases separately. Each controller determines the switching-state of one inverter half- bridge in such a way that the corresponding current is maintained within a hysteresis band ai [9]. Fig. 2 Hysteresis PWM, current control and switching logic
SWITCHING TABLE PRESENTED BY TAKAHASHI AND NOGUCHI
SWITCHING TABLE PRESENTED BY TAKAHASHI AND NOGUCHI
Fig. 4 System diagram of a typical DTC PMSM drive system
Fig. 4 System diagram of a typical DTC PMSM drive system
The composite a and # of vector, can be obtained:
The composite a and # of vector, can be obtained:
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