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Multidimensional harmonic current feedforward compensation control of single‐phase alternating current–direct current power factor correction converter
Author(s) -
Lu Weiguo,
Huang Qiwei,
Li Shaoling,
Xu Huaiwen
Publication year - 2021
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.3050
Subject(s) - feed forward , control theory (sociology) , harmonics , total harmonic distortion , power factor , dc bias , bandwidth (computing) , current loop , harmonic , voltage , electronic engineering , engineering , computer science , physics , electrical engineering , telecommunications , control (management) , quantum mechanics , control engineering , artificial intelligence
Generally, low‐bandwidth condition of control voltage loop is used for single‐phase alternating current–direct current (AC–DC) power factor correction (PFC) converter, which eliminates the influence of the second harmonic component in the output voltage on control loop but degrades the load dynamic performance. However, the high‐bandwidth condition of voltage loop would cause multiharmonic distortions both in the input current and output voltage. Regarding this issue, this paper proposes a multidimensional harmonic current feedforward compensation control (MHCFC) scheme, to eliminate multiharmonic distortion of the PFC system using a high‐bandwidth condition of voltage loop and improve the dynamic performance as well. In the proposed scheme, the odd harmonics of the input current are extracted through multidimensional band‐pass filters and further converted into even harmonic compensation signals via the coordinate transformation, so as to offset the negative effects of the even harmonics of the output voltage. Taking boost PFC circuit as an example, a digital controlled experimental prototype is built to verify the feasibility of the proposed control scheme. The experimental results show that, compared with the traditional low‐pass filter (LPF) scheme, the proposed scheme guarantees a high‐quality input current while its load dynamic response is improved by about 70%.