广东电力2016，Vol.29Issue(1)：87-91,5.DOI:10.3969/j.issn.1007-290X.2016.01.017
基于瞬时电流跟踪的三相光伏逆变器并网控制策略研究
Research on Grid-connection Control Strategy for Three-phase Photovoltaic Inverter Based on Instantaneous Current Tracking
吴小雅1
作者信息
- 1. 广东电网有限责任公司肇庆供电局，广东 肇庆 526000
- 折叠
摘要
Abstract
On the basis of analyzing energy transferring relationship between AC side and DC side of the photovoltaic invert-er,this paper proposes a kind of grid-connection control strategy based on instantaneous current tracking.The outer loop of power of this strategy considers factors such as power transformation of the photovoltaic array module and charge and dis-charge process of the DC capacitor,the inner loop uses hysteresis current control mode to track reference current.This strategy has advantages such as small current harmonic,rapid response speed,easy setting on control parameters,and so on. Meanwhile,this paper provides start control strategy for photovoltaic inverter in order to prevent large start current from damaging power switching elements.In PSCAD/EMTDC software,simulation model for three-phase photovoltaic grid-con-nection is established and digital simulation verifies effectiveness of this control strategy.关键词
光伏/三相逆变器/滞环电流控制/启动控制/PSCAD/EMTDCKey words
photovoltaic/three-phase inverter/hysteresis current control/start control/PSCAD/EMTDC分类
信息技术与安全科学引用本文复制引用
吴小雅..基于瞬时电流跟踪的三相光伏逆变器并网控制策略研究[J].广东电力,2016,29(1):87-91,5.
