报告详情
Fault Diagnosis of Current Sensor in Grid-Connected Inverter Based on Sliding Mode Observer
编号：7
访问权限：仅限参会人
更新：2023-06-14 20:00:05
浏览：394次
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摘要
In the grid-connected inverter, the current sensor is easily affected by various faults, which reduces the reliability. In the conventional current sensor fault diagnosis method, misjudgment will occur when the current step changes as only the residual error between reference current and the sampled one is used as the fault flag. To solve this problem, in this paper, the current space vector error projection is used as the correction term to reconstruct the fault phase current using a sliding mode observer. Then, the average absolute value of the residual error between reference current and the sampled current, and the average absolute value of the residual error between reconstructed current and the sampled current are used to diagnose the fault of the current sensor. As a result, misjudgment due to the step change of the current can be avoided. Finally, the feasibility of this method is verified on the Matlab/Simulink platform.
关键词
current sensor fault;current space vector;current reconstruction;fault diagnosis
报告人
Yanyan Li
Zhengzhou University of Light Industry Yingxun Xia
Zhengzhou University of Light Industry Leilei Guo
Associate professor College of Electrical and Information Engineering, Zhengzhou University of Light Industry Nan Jin
Zhengzhou University of Light Industry全部评论
重要日期
-
会议日期
06月16日
2023
至06月19日
2023
-
06月15日 2023
报告提交截止日期
-
07月02日 2023
注册截止日期
主办单位
Huazhong University of Science and Technology, China
(IEEE PELS)
IEEE
(IEEE PELS)
IEEE
联系方式
- Organizing Committee
- pr******@hust.edu.cn
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