Open AccessNoval hybrid control method for APF based on PI and FRC
Author(s) -
Xie Ning,
Xu Qi,
Zeng Jie,
Liu Xin,
Zhang Wei,
Zhang Chi
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8399
Subject(s) - control theory (sociology) , harmonics , compensation (psychology) , steady state (chemistry) , rotating reference frame , computer science , reference frame , adaptability , component (thermodynamics) , power (physics) , frame (networking) , rotation (mathematics) , control (management) , engineering , physics , voltage , artificial intelligence , psychology , telecommunications , ecology , chemistry , quantum mechanics , mechanics , psychoanalysis , electrical engineering , biology , thermodynamics
The accuracy of control links directly affects the compensation effect of active power filter (APF). Fast repetitive control (FRC) strategy based on single synchronous rotating frame is proposed, for improving the steady‐state compensation accuracy and dynamic response. Based on the fundamental rotating mathematical model of APF, the fundamental component of output instruction current can be converted to DC component by synchronous rotation coordinate transformation, and 6 k ± 1 times harmonics can be transferred to 6 k times harmonics. Then, a hybrid control method based on proportion‐integral (PI) control combined with FRC is proposed. The experimental results of the prototype proved that the method advantages in steady‐state compensation accuracy, adaptability to load variation and dynamic performance.