TY - JOUR
T1 - Robust Direct Torque Control of Synchronous Reluctance Motor Drives in the Field-Weakening Region
AU - Foo, Gilbert Hock Beng
AU - Zhang, Xinan
PY - 2017/2/1
Y1 - 2017/2/1
N2 - A robust field-weakening method for direct-torque-controlled (DTC) synchronous reluctance motors is presented in this paper. The proposed algorithm achieves smooth transition between the constant torque and field-weakening regions. Maximum torque per ampere is utilized below base speed, while both the current and voltage limits of the drive system are satisfied in the field-weakening region. The proposed method is robust to the variations in the machine dq -axis inductances. This ensures the system stability during field-weakening operation, especially along the maximum torque per flux trajectory. The proposed algorithm is incorporated into the duty ratio regulation-based DTC to achieve high-performance torque and flux control in the field-weakening region. Experimental results included in this paper confirm the veracity of the proposed method.
AB - A robust field-weakening method for direct-torque-controlled (DTC) synchronous reluctance motors is presented in this paper. The proposed algorithm achieves smooth transition between the constant torque and field-weakening regions. Maximum torque per ampere is utilized below base speed, while both the current and voltage limits of the drive system are satisfied in the field-weakening region. The proposed method is robust to the variations in the machine dq -axis inductances. This ensures the system stability during field-weakening operation, especially along the maximum torque per flux trajectory. The proposed algorithm is incorporated into the duty ratio regulation-based DTC to achieve high-performance torque and flux control in the field-weakening region. Experimental results included in this paper confirm the veracity of the proposed method.
KW - Direct torque control
KW - field weakening (FW)
KW - parameter robustness
KW - synchronous reluctance motor (RSM)
KW - torque ripples
UR - http://www.scopus.com/inward/record.url?scp=84999143030&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2016.2542241
DO - 10.1109/TPEL.2016.2542241
M3 - Article
AN - SCOPUS:84999143030
VL - 32
SP - 1289
EP - 1298
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
SN - 0885-8993
IS - 2
M1 - 7434062
ER -