Harmonic rejection in current source inverter‐based distributed generation with grid voltage distortion using multi‐synchronous reference frame. Issue 6 (1st June 2014)

• Record Type: Journal Article
• Authors: Morsy, Ahmed; Ahmed, Shehab; Massoud, Ahmed Mohamed
• Is Part Of: IET power electronics. Volume 7:Issue 6(2014)
• Page Start: 1323
• Page End: 1330
• Publication Date: 2014-06-01
• Subjects: distributed power generation -- power harmonic filters -- power system harmonics -- constant current sources -- power grids -- power supply quality -- harmonic distortion -- switching convertors -- electric current control -- power distribution control; harmonic rejection controller -- computational load reduction -- state‐space‐based stationary frame equivalent model -- harmonics extraction -- passive fllter bandwidth -- high‐quality output current -- MSRF architecture -- multisynchronous reference frame architecture -- grid utility voltage distortion -- CSI -- low switching frequency inverter -- total harmonic distortion -- power quality -- DG -- renewable energy resource -- current source inverter‐based distributed generation; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2013.0186
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : The growing penetration of renewable energy resources and distributed generation (DG) has raised significant interest in power quality issues. Achieving low total harmonic distortion of exported current using low switching frequency inverters such as current source inverters (CSI) is a challenge, especially under conditions of severe utility voltage distortion. This study presents a control structure for a CSI‐based DG system, based on a multi‐synchronous reference frame (MSRF) architecture that rejects the effect of utility voltage distortion and helps attain high‐quality output current. The proposed solution is applicable for low switching frequency inverters with limited passive filter bandwidth. The MSRF architecture presented confines two stages; one for harmonics extraction and another for harmonics rejection. A state‐space‐based stationary frame equivalent model of the proposed MSRF architecture is presented; this substantially reduces the computational load while preserving system performance. Experimental results validate the proposed technique against the conventional harmonic rejection controller.