TY - JOUR
T1 - Perfect wave oscillation suppression with reflection coefficients adaptation in PWM motor drives with long feeding cables
AU - Lee, S. C.
PY - 2006
Y1 - 2006
N2 - A perfect wave oscillation cancellation scheme is a proposed method for suppressing overvoltage in adjustable speed PWM motor drives through long feeding cables. It is a new solution to the overvoltage problem, which cascades the proposed filter with the transmission line achieving a pure delay transfer between inverter and motor, completely removing the pulse reflection that causes the overvoltage problem. Simple voltage transfer function with time delay is derived under a distortionless transmission assumption, which is valid in practice. The proposed PWM input voltage form is calculated by inverting the voltage transfer function. Also, the unknown reflection coefficients are identified through a simple adaptive algorithm. The simulation results verify the performance of the proposed method, which is compared with a previous method.
AB - A perfect wave oscillation cancellation scheme is a proposed method for suppressing overvoltage in adjustable speed PWM motor drives through long feeding cables. It is a new solution to the overvoltage problem, which cascades the proposed filter with the transmission line achieving a pure delay transfer between inverter and motor, completely removing the pulse reflection that causes the overvoltage problem. Simple voltage transfer function with time delay is derived under a distortionless transmission assumption, which is valid in practice. The proposed PWM input voltage form is calculated by inverting the voltage transfer function. Also, the unknown reflection coefficients are identified through a simple adaptive algorithm. The simulation results verify the performance of the proposed method, which is compared with a previous method.
UR - http://www.scopus.com/inward/record.url?scp=33646580403&partnerID=8YFLogxK
U2 - 10.1049/ip-epa:20050417
DO - 10.1049/ip-epa:20050417
M3 - Article
AN - SCOPUS:33646580403
SN - 1350-2352
VL - 153
SP - 467
EP - 472
JO - IEE Proceedings: Electric Power Applications
JF - IEE Proceedings: Electric Power Applications
IS - 3
ER -