NDLI: Analysis, design and implementation of a quasi-proportional-resonant controller for multifunctional capacitive-coupling grid-connected inverter

Content Provider	IEEE Xplore Digital Library
Author	Tao Ye NingYi Dai Chi-Seng Lam Man-Chung Wong Guerrero, J.M.
Copyright Year	2015
Description	Author affiliation: Electr. & Comput. Eng. Dept., Univ. of Macau, Macao, China (Tao Ye; NingYi Dai; Chi-Seng Lam; Man-Chung Wong) \|\| Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark (Guerrero, J.M.)
Abstract	The capacitive-coupling grid-connected inverter (CGCI) is able to achieve reactive power compensation and active power transfer simultaneously with a low operational voltage. The CGCI is coupled to the point of common coupling (PCC) via a second-order LC circuit, which makes its modeling and current control characteristics differs from the conventional inductive-coupling grid-connected inverter. The direct current tracking with hysteresis pulse width modulation (PWM) was used in previous studies. However, this method suffers from widely varying switching frequency and large current ripples. A Quasi-proportional-resonant (Quasi-PR) current controller is designed for the CGCI in this paper. Its modeling and parameter selection are studied in detail. In contrast with proportional-integration (PI) current controller, the Quasi-PR controller reduces steady-state error. It also generates a voltage reference for applying the carrier-based PWM to improve output waveform quality. Simulation results are provided to verify the Quasi-PR controller and comparison with the PI controller is also done. A lab-scale prototype is built. Experimental results are given to show the validity of the proposed control method and its design.
Starting Page	2506
Ending Page	2513
File Size	1066834
Page Count	8
File Format	PDF
e-ISBN	9781467371513
DOI	10.1109/ECCE.2015.7310012
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-20
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Couplings Reactive power Parameters design Quasi-PR controller Transfer functions Pulse width modulation Inverters Proportional-integration controller Mathematical model Frequency control Capacitive-coupling grid connected inverter
Content Type	Text
Resource Type	Article

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