Matrix pencil method‐based reference current generation for shunt active power filters. Issue 4 (27th February 2018)

• Record Type: Journal Article
• Authors: Terriche, Yacine; Golestan, Saeed; Guerrero, Josep M.; Kerdoune, Djallel; Vasquez, Juan C.
• Is Part Of: IET power electronics. Volume 11:Issue 4(2018)
• Page Start: 772
• Page End: 780
• Publication Date: 2018-02-27
• Subjects: power harmonic filters -- discrete Fourier transforms -- time‐domain analysis -- frequency‐domain analysis -- dynamic response; matrix pencil method‐based reference current generation -- shunt active power filters -- SAPF -- harmonic pollution compensation -- reactive content -- reference compensating current -- RCC -- discrete Fourier transform -- DFT -- frequency domain -- instantaneous p‐q theory -- synchronous reference frame -- time domain -- picket‐fence effect -- spectral leakage -- time‐domain method -- voltage distortion -- fast dynamic response -- voltage phase estimation -- power factor -- current unbalance; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2017.0351
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : In recent years, the shunt active power filters (SAPFs) have received much attention for compensating the harmonic pollution and also providing the reactive content. A crucial issue in controlling the SAPF is generating the reference compensating current (RCC). Typical approaches for this purpose are using the discrete Fourier transform (DFT) in the frequency domain or the instantaneous p–q theory and the synchronous reference frame in the time domain. The DFT, however, suffers from the picket‐fence effect and spectral leakage. On the other hand, the DFT takes at least one cycle of the nominal frequency. The time‐domain methods show a weakness under voltage distortion, which requires prior filtering techniques. The aim of this study is to present a fast yet effective method for generating the RCC for SAPFs. The proposed method, which is based on the matrix pencil method, has a fast dynamic response and works well under distorted and unbalanced voltage. Moreover, the proposed method can estimate the voltage phase accurately; this property enables the algorithm to compensate for both power factor and current unbalance. The effectiveness of the proposed method is verified using simulation and experimental results, and compared with the standard methods.