Research on Control Strategy of Photovoltaic Grid-Connected Inverter

Author

Ziqiang Xi ; Ming Deng ; Kaicheng Li

Author_Institution

Sch. of Electr. & Electron. Eng., Hubei Univ. of Technol., Wuhan, China

Volume

2

fYear

2013

fDate

26-27 Aug. 2013

Firstpage

467

Lastpage

469

Abstract

This paper presents a control strategy of three-phase grid inverter Based on space vector modulation. First, the model of the inverter was built in the two-phase rotating reference frame, then control principle was proposed Based on the space vector SPWM current control, which realize the grid current active component and reactive component of the independent control, and presents a decoupled current control and feed-forward of power grid voltage control. The simulation results verify that the proposed control strategy not only can improve the quality of grid current, but also can connect to grid with unity power factor.

Keywords

electric current control; invertors; photovoltaic power systems; power generation control; power grids; power supply quality; voltage control; control strategy; decoupled current control; grid current active component; grid current quality; independent control reactive component; photovoltaic grid-connected inverter; power grid voltage control feed-forward; space vector SPWM current control; space vector modulation; three-phase grid inverter; two-phase rotating reference frame; unity power factor; Control systems; Inverters; Photovoltaic systems; Vectors; Voltage control; Double-loop control; Grid-connected inverter; Space vector SPWM;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Human-Machine Systems and Cybernetics (IHMSC), 2013 5th International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-0-7695-5011-4

Type

conf

DOI

10.1109/IHMSC.2013.258

Filename

6642786