电子器件2017，Vol.40Issue(2)：446-450,5.DOI:10.3969/j.issn.1005-9490.2017.02.037
基于电网电压矢量定向的双闭环光伏并网逆变系统的研究
Research of Grid-Connected Photovoltaic Inverter Grid-Connected SystemBased on Double Closed-Loop of Grid Voltage Vector Orientation
许军 1周文华 1郑绍陆2
作者信息
- 1. 西安科技大学电气与控制工程学院,西安 710054
- 2. 国网宁夏电力公司中卫供电公司,宁夏 中卫755000
- 折叠
摘要
Abstract
For the problem of grid inverter technology in traditional Photo-Voltage(PV)system,a novel direct current control strategy is proposed on the basis of grid voltage vector orientation of the double closed loops,and a control system of DC voltage outer loop and active or reactive current inner loop is built on top of dynamic mathematical model.Meanwhile,combined with SVPWM to control the IGBT,the PV grid inverter system achieves high precision when it runs under lower unit power factor.Finally,through the comparison of MATLAB simulation and the system experiment,in which the two-level and non-isolated type and contravariant DSP is taken as control chip,the accuracy of the method is verified.关键词
并网逆变/电网电压矢量定向/双闭环/SVPWM/单位功率因素Key words
grid-connected inverter/grid voltage vector orientation/double closed loop/SVPWM/unit power factor分类
信息技术与安全科学引用本文复制引用
许军,周文华,郑绍陆..基于电网电压矢量定向的双闭环光伏并网逆变系统的研究[J].电子器件,2017,40(2):446-450,5.
