Improved PI and Repetitive Controller for Dual-Buck Inverter - Details

author：

Chen, Weidong (Chen, Weidong.) ^[1] | Cai, Fenghuang (Cai, Fenghuang.) ^[2] (Scholars：蔡逢煌) | Lin, Qiongbin (Lin, Qiongbin.) ^[3] (Scholars：林琼斌) | Wang, Wu (Wang, Wu.) ^[4] (Scholars：王武)

Indexed by：

EI Scopus

Abstract：

In　order　to　improve　the　dynamic　responses　of　conventional　repetitive　control,　a　novel　repetitive　control　combined　with　adaptive　PI　is　proposed　in　this　paper.　The　adaptive　PI　is　a　self-tuning　method,　which　performs　parameter　adjustment　based　on　the　steepest　descent　method.　The　controller　can　adjust　the　PI　parameters　and　calculate　the　new　PI　parameters　in　real　time　as　the　external　working　conditions　changed.　The　performance　of　the　proposed　controller　was　assessed　in　dual-buck　full-bridge　single　phase　inverter　system　through　simulation　which　run　in　PSIM　software.　The　results　show　that　the　control　scheme　can　not　only　obtain　a　stable　output　voltage　waveform　in　steady　state,　but　also　adjust　the　PI　parameters　in　real　time　when　the　given　reference　changed.　It　proves　the　effectiveness　and　practicability　of　the　proposed　method　and　provides　a　new　voltage　control　scheme　for　dual-buck　inverter.　©　2020　Technical　Committee　on　Control　Theory,　Chinese　Association　of　Automation.

Keyword：

Computer software Controllers Electric inverters Steepest descent method

Community：

[ 1 ] [Chen, Weidong]Fuzhou University, College of Electrical Engineering and Automation, Fuzhou; 350116, China
[ 2 ] [Cai, Fenghuang]Fuzhou University, College of Electrical Engineering and Automation, Fuzhou; 350116, China
[ 3 ] [Lin, Qiongbin]Fuzhou University, College of Electrical Engineering and Automation, Fuzhou; 350116, China
[ 4 ] [Wang, Wu]Fuzhou University, College of Electrical Engineering and Automation, Fuzhou; 350116, China