Title :
The research on the active power filter based on the cascaded H-bridge converter
Author :
Chen, Yonggang ; Chen, Junling ; Wang, Ping ; Li, Yaohua ; Tan, Longcheng ; Li, Zixin ; Xu, Wei
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing
Abstract :
The model and the normal control method of the cascaded H-bridge active power filter is described firstly in this paper. However, problems exist in the normal control. One of the main problems is the unbalance of DC capacitor voltages of the H-bridge units. In this paper, an improved method for DC capacitor voltages control of the cascaded H-bridge active power filter is presented. With slightly shifting the modulation waves, it makes the DC capacitor voltages balancing in the accepted tolerance without any additional units. The method is validated by simulation and experiment.
Keywords :
active filters; bridge circuits; cascade networks; power convertors; power harmonic filters; voltage control; DC capacitor voltage balance control; active power filter; cascaded H-bridge converter; harmonic mitigation; modulation waves; Active filters; Capacitors; Costs; Inverters; Medium voltage; Power harmonic filters; Power system harmonics; Switches; Total harmonic distortion; Voltage control; Active filter; cascaded H-bridge converter; dc voltage balance control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 13th
Conference_Location :
Poznan
Print_ISBN :
978-1-4244-1741-4
Electronic_ISBN :
978-1-4244-1742-1
DOI :
10.1109/EPEPEMC.2008.4635559
