TY - GEN
T1 - A reduced order time-delay control for highly simplified brushless DC motor
AU - Chang, Pyung H.
AU - Lee, Jung H.
AU - Park, Suk H.
PY - 1998
Y1 - 1998
N2 - A reduced-order Time Delay Control (RTDC) has been derived and applied to the position control of a brushless DC motor (BLDCM) with a highly simplified hardware configuration: use of six-step commutation without current control unit. In addition, the closed-loop stability has been analyzed by using the singular perturbation method. Throughout simulation and experimental studies, RTDC has been observed to achieve a performance level approaching to that of a BLDCM adopting sinusoidal commutation with current control unit. More specifically, it has been observed that RTDC effectively compensates for parameter variations, nonlinearities, and the torque ripple caused by six-step commutation, which a conventional PID control cannot handle with adequate performances. This result shows that RTDC enables an economical design without compromising performance. More importantly, the example establishes a case that: a good control method can compensate for the hardware deficiency in a given plant; and as a result it even enables a simpler design of plants at the design stage.
AB - A reduced-order Time Delay Control (RTDC) has been derived and applied to the position control of a brushless DC motor (BLDCM) with a highly simplified hardware configuration: use of six-step commutation without current control unit. In addition, the closed-loop stability has been analyzed by using the singular perturbation method. Throughout simulation and experimental studies, RTDC has been observed to achieve a performance level approaching to that of a BLDCM adopting sinusoidal commutation with current control unit. More specifically, it has been observed that RTDC effectively compensates for parameter variations, nonlinearities, and the torque ripple caused by six-step commutation, which a conventional PID control cannot handle with adequate performances. This result shows that RTDC enables an economical design without compromising performance. More importantly, the example establishes a case that: a good control method can compensate for the hardware deficiency in a given plant; and as a result it even enables a simpler design of plants at the design stage.
UR - http://www.scopus.com/inward/record.url?scp=0003568430&partnerID=8YFLogxK
U2 - 10.1109/ACC.1998.703354
DO - 10.1109/ACC.1998.703354
M3 - Conference contribution
AN - SCOPUS:0003568430
SN - 0780345304
SN - 9780780345300
T3 - Proceedings of the American Control Conference
SP - 3791
EP - 3795
BT - Proceedings of the 1998 American Control Conference, ACC 1998
T2 - 1998 American Control Conference, ACC 1998
Y2 - 24 June 1998 through 26 June 1998
ER -