电力系统自动化2012,Vol.36Issue(3):47-53,7.
带隔离变压器的并网逆变器的降阶模型及滑模变结构控制
Reduction Model and Sliding Mode Variable Structure Control for Grid-connected Inverters with Isolation Transformer
摘要
Abstract
Grid-connected inverters are important components of distributed generation systems and microgrids.A grid-connected inverter topology with LC filter and isolation transformer is investigated.It has a high order mathematical model and is hard to control.Its reduced model is obtained by the defined "virtual feedback current",which is useful for the controller design of proposed topology.Moreover,how the variable parameters affect the reduced model is studied in detail.According to the reduced model,a sliding mode variable structure control is designed.The correctness and effectiveness of the proposed approach is verified using PSCAD/EMTDC.关键词
并网逆变器/LC滤波/隔离变压器/模型降阶/滑模变结构控制Key words
grid-connected inverter/LC filter/isolation transformer/model reduction/sliding mode variable structure control分类
信息技术与安全科学引用本文复制引用
曾正,赵荣祥,杨欢..带隔离变压器的并网逆变器的降阶模型及滑模变结构控制[J].电力系统自动化,2012,36(3):47-53,7.基金项目
国家自然科学基金资助项目 ()
中国博士后科学基金资助项目 ()