Title :
Periodic errors elimination in CVCF PWM DC/AC converter systems: repetitive control approach
Author :
Zhou, K. ; Wang, D. ; Low, K.-S.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
fDate :
11/1/2000 12:00:00 AM
Abstract :
A plug-in digital repetitive learning (RC) controller is proposed to eliminate periodic tracking errors in constant-voltage constant-frequency (CVCF) pulse-width modulated (PWM) DC/AC converter systems. The design of the RC controller is systematically developed and the stability analysis of the overall system is discussed. The periodic errors are forced toward zero asymptotically and the total harmonics distortion (THD) of the output voltage is substantially reduced under parameter uncertainties and load disturbances. Simulation and experimental results are provided to illustrate the validity of the proposed scheme
Keywords :
DC-AC power convertors; PWM power convertors; digital control; discrete time systems; learning systems; stability; uncertain systems; CVCF PWM DC/AC converter systems; constant-voltage constant-frequency pulse-width modulated DC/AC converter systems; load disturbances; output voltage; parameter uncertainties; periodic errors elimination; plug-in digital repetitive learning controller; repetitive control approach; stability analysis; total harmonics distortion;
Journal_Title :
Control Theory and Applications, IEE Proceedings -
DOI :
10.1049/ip-cta:20000782
