Hybrid single and double‐voltage vector‐based model predictive common‐mode voltage reduction method for 2‐level voltage source inverters. Issue 8 (24th June 2019)

• Record Type: Journal Article
• Authors: Guo, Leilei; Jin, Yuxiang; Cao, Lingzhi; Dai, Linwang; Luo, Kui
• Is Part Of: IET power electronics. Volume 12:Issue 8(2019)
• Page Start: 2086
• Page End: 2094
• Publication Date: 2019-06-24
• Subjects: voltage control -- invertors -- harmonic distortion -- predictive control -- vectors -- power system control -- electric current control; double‐voltage vector‐based model predictive common‐mode voltage reduction method -- 2‐level voltage source inverters -- current total harmonic distortions -- nonzero VV‐based MPC strategy -- current THDs -- improved VV preselection method -- current sector division method -- hybrid single VV‐based MPC strategy -- double‐VV‐based MPC strategy -- current variation per control period -- hybrid single‐voltage vector‐based model predictive common‐mode voltage reduction method; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2019.0068
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : To reduce the common‐mode voltage (CMV) as well as the current total harmonic distortions (THDs) of 2‐level voltage source inverters (2L‐VSIs), a hybrid single and double‐voltage vector (VV)‐based model predictive control (MPC) method is proposed. Firstly, a two non‐zero VV‐based MPC strategy is proposed to reduce the CMV as well as the current THDs. Secondly, the influences of the dead time on this method are analysed in detail, and an improved VV preselection method is further proposed to remove the dead time effects. Thirdly, considering the impacts of the control delay and the current ripples, a new current sector division method is presented, based on which a hybrid single and double‐VV‐based MPC strategy is finally proposed. Furthermore, the current variation per control period under the action of different VVs is also analysed in‐depth in this study to lay a solid theoretical foundation for dividing the current sector more properly. Both the simulation and experimental studies are carried out to verify the effectiveness of the proposed method.