报告详情
  1. 活动首页
  2. 报告清单
  3. 报告详情
Sliding Mode Control Strategy of Grid-Connected Inverter under Unbalanced Grid Voltage
编号：571 访问权限：仅限参会人 更新：2022-05-22 09:34:57 浏览：196次 张贴报告

报告开始：暂无开始时间（Asia/Shanghai）

报告时间：暂无持续时间

所在会场：[暂无会议] [暂无会议段]

视频 无权播放 演示文件 附属文件

提示：该报告下的文件权限为仅限参会人，您尚未登录，暂时无法查看。

摘要
As the actual grid voltage is not always balanced, the control strategy of the photovoltaic inverter will affect the quality of the current injected into the grid. The double closed-loop control strategy of the traditional PI controller is not effective in restraining the second-order harmonic fluctuation of inverter output power and grid current distortion under unbalanced grid voltage. This paper adopts a new type of sliding mode control (SMC) and this method does not need separation of positive- and negative-sequence current and decoupling control. By selecting the proportional-integral sliding surface of current error, the control accuracy of grid-connected current can be improved. The chattering issue can be alleviated by properly selecting the approaching law function of the sliding surface when the system tends to be stable. The control strategy of suppressing the negative sequence current is adopted to reduce the distortion of the grid-connected current. The proposed controller can improve the dynamic performance and insensitivity to external disturbances of the grid-connected inverter. The simulation results verify the effectiveness of the proposed strategy.
关键词
SMC; grid voltage imbalance; negative sequence current; second-order harmonic
报告人
YuanyuanWu
内蒙古工业大学

发表评论
验证码 看不清楚，更换一张
全部评论
重要日期

  • 会议日期

    05月27日

    2022

    至

    05月29日

    2022

  • 02月28日 2022

    初稿截稿日期

  • 05月29日 2022

    注册截止日期

  • 06月22日 2022

    报告提交截止日期

主办单位
IEEE Beijing Section
China Electrotechnical Society
Southeast University
协办单位
IEEE Industry Applications Society
IEEE Nanjing Section
联系方式
登录查看完整联系方式
历届会议
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询