An Adaptive Virtual Impedance-Based Controllably Inductive Power Filtering System

• Published in: Proceedings - International Conference on Harmonics and Quality of Power pp. 73 - 78
• Main Authors: Wang, Shaoyang, Li, Yong, Lin, Gang, Lin, Jinjie, Fang, Hao, Miao, Ruiwen
• Format: Conference Proceeding
• Language: English
• Published: IEEE 15.10.2024
• Subjects: Adaptive systems; Controllably inductive power filtering; Filtering; Harmonic analysis; harmonic suppression; Impedance; Passive filters; Power harmonic filters; Power quality; quasi-PR controller adaptive virtual impedance; Reactive power; reactive power compensation; Steady-state; Transformers
• ISSN: 2164-0610
• DOI: 10.1109/ICHQP61174.2024.10768790

To overcome the limitations of conventional inductive power filtering as a passive filtering approach, in this paper, an adaptive virtual impedance-based controllably inductive power filtering system (AVI-CIPFS) is proposed. This system consists of an inductive filtering transformer, an LC-filter bank, and an active inverter. Assisted by the multi-objective control strategies developed, it can dampen the resonance between passive filters and grid-side impedance, manipulate power factor, and perform multiple harmonic mitigation simultaneously. In addition, using the quasi-PR controller with frequency division detection, it also removes the coupling between active and reactive components in the dq0 frame, greatly reducing the steady-state current tracking errors. Experimental results demonstrate the practicality of this proposal.