Title :
Realization and improvement of repetitive control in rotating frame for active power filter system
Author :
Chen, Baifeng ; Zha, Xiaoming ; Gong, Jinwu ; Guo, Suxuan ; Sun, Jianjun
Author_Institution :
Sch. of Electr. Eng., Wuhan Univ., Wuhan, China
Abstract :
The repetitive control, which is based on a delay of fundamental period, is widely used in grid-connected voltage-source converters, such as uninterruptible power supply (UPS), photovoltaic (PV) inverter and active power filter (APF). This paper presents four repetitive controllers in rotating frame for APF system, whose repetitive period is T, T/2, T/3, and T/6 respectively. Compared with traditional repetitive control, these repetitive controllers have fast dynamic response and also have similar structure, which could also be easily implemented in digital processor for APF system. Regeneration spectrum and sensitivity function based analysis methods provide a way for parameters design and performance comparison between each controller. Simulation and experiment results demonstrate the validity and superiority of each controller.
Keywords :
active filters; control system synthesis; power convertors; power filters; UPS; active power filter system; grid-connected voltage-source converters; photovoltaic inverter; regeneration spectrum methods; repetitive control; sensitivity function based analysis methods; uninterruptible power supply; Active filters; Control systems; Delay; Power harmonic filters; Power system harmonics; Proportional control; Resonance; Transfer functions; Uninterruptible power systems; Voltage control; Repetitive control; active power filter; regeneration spectrum; rotating frame; sensitivity function;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE
Conference_Location :
Palm Springs, CA
Print_ISBN :
978-1-4244-4782-4
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2010.5433564
