TY - GEN
T1 - Direct torque control stability conditions and compensation methods
AU - Buyukdegirmenci, Veysel T.
AU - Krein, Philip T
PY - 2011/9/14
Y1 - 2011/9/14
N2 - This paper discusses stability conditions of direct torque control (DTC) based on a singular perturbation perspective. Input-output decoupling is discussed and asymptotic-input-output-decoupling is proposed in order to improve erratic DTC performance reported by practitioners. Stability analysis shows that DTC is applicable for low-leakage machines. A detailed mathematical stability analysis and an experimental comparison of conventional DTC and decoupling methods under high speed and high load condition are presented. The results show that asymptotic decoupling compensates for erratic DTC performance with minimal control effort and controller complexity. The improvement trades off voltage headroom for dynamics of torque regulation.
AB - This paper discusses stability conditions of direct torque control (DTC) based on a singular perturbation perspective. Input-output decoupling is discussed and asymptotic-input-output-decoupling is proposed in order to improve erratic DTC performance reported by practitioners. Stability analysis shows that DTC is applicable for low-leakage machines. A detailed mathematical stability analysis and an experimental comparison of conventional DTC and decoupling methods under high speed and high load condition are presented. The results show that asymptotic decoupling compensates for erratic DTC performance with minimal control effort and controller complexity. The improvement trades off voltage headroom for dynamics of torque regulation.
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U2 - 10.1109/IEMDC.2011.5994751
DO - 10.1109/IEMDC.2011.5994751
M3 - Conference contribution
AN - SCOPUS:80052588963
SN - 9781457700613
T3 - 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
SP - 107
EP - 112
BT - 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
T2 - 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Y2 - 15 May 2011 through 18 May 2011
ER -