An Improved Shunt Hybrid Active Power Filter Based on Cascaded H-Bridge Converter and Its Generalized Inverse System Decoupling Control

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An Improved Shunt Hybrid Active Power Filter Based on Cascaded H-Bridge Converter and Its Generalized Inverse System Decoupling Control

Li, Xin / Li, Ruoqiong / Li, Bo

In this paper, a novel improved shunt hybrid active power filter (SHAPF) is presented based on cascaded H-bridge converter to compensate the harmonics on the grid. This improved structure of SHAPF can significantly reduce the 5th and 7th harmonics which mainly affect the power quality on the grid. H-bridge converter and passive power filter (PPF) are connected in series to compensate the harmonics together, passive power filter is mainly used to compensate 5th and 7th harmonics, and the other harmonics are compensated by the cascaded H-bridge converter. Furthermore, based on the generalized inverse system, a decoupling control method is proposed for the nonlinear and strong coupling characteristics of the 2-input 2-output improved SHAPF. After using an interactive algorithm and analyzing based on the operating principle, it is verified that the improved SHAPF model is reversible. The improved SHAPF-generalized inverse system is obtained, which is decoupled by the generalized inverse system theory after forming a composite system in series with the original system. Finally, by using an additional PI controller, the first pseudo-linear system that controls decoupling can achieve performance tuning of the subsystem. The effectiveness of this decoupling method is proved by MATLAB simulation that the decoupling subsystem has good performance, both dynamic and static.

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Dokumentinformationen

Titel :

An Improved Shunt Hybrid Active Power Filter Based on Cascaded H-Bridge Converter and Its Generalized Inverse System Decoupling Control

Weitere Titelangaben:

Lect. Notes Electrical Eng.

Beteiligte:

Jia, Limin (Herausgeber:in) / Qin, Yong (Herausgeber:in) / Liu, Baoming (Herausgeber:in) / Liu, Zhigang (Herausgeber:in) / Diao, Lijun (Herausgeber:in) / An, Min (Herausgeber:in) / Li, Xin (Autor:in) / Li, Ruoqiong (Autor:in) / Li, Bo (Autor:in)

Kongress:

International Conference on Electrical and Information Technologies for Rail Transportation ; 2019 ; Qingdao, China October 25, 2019 - October 27, 2019

Erschienen in:

Proceedings of the 4th International Conference on Electrical and Information Technologies for Rail Transportation (EITRT) 2019 ; Kapitel : 15 ; 151-161

Lecture Notes in Electrical Engineering ; 638

Erscheinungsdatum :

2020-04-08

Format / Umfang :

11 pages

ISBN :

978-981-15-2862-0 , 978-981-15-2861-3

ISSN :

1876-1119 , 1876-1100

DOI :