Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter

Liwei Du; Liansong Xiong; Mingxian Li; Zhen Tang; Liancheng Xiu; Xun Ma

doi:10.17775/CSEEJPES.2019.02810

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Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter

Regular Papers | 更新时间：2026-10-15

- Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter
- Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter
- 中国电机工程学会电力与能源系统学报(英文) 2023年9卷第1期页码：235-243
- 作者机构：
  
  1. School of Automation, Nanjing Institute of Technology,Nanjing,China
  2. Solar Energy Research Institute, Yunnan Normal University,Kunming,China
  3. School of Electrical Engineering, Xi'an Jiaotong University,Xi'an,China
  4. College of Electrical and Power Engineering, China University of Mining and Technology,Xuzhou,China
  5. State Grid Shanxi Electric Power Corporation Electric Power Research Institute,Taiyuan,China
  6. School of Electrical Engineering and Automation, Wuhan University,Wuhan,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2019.02810
  中图分类号：
- 纸质出版：2023-01-01
- 稿件说明：
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Liwei Du, Liansong Xiong, Mingxian Li, 等. Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter[J]. 中国电机工程学会电力与能源系统学报(英文), 2023,9(1):235-243.

Liwei Du, Liansong Xiong, Mingxian Li, et al. Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter[J]. CSEE Journal of Power and Energy Systems, 2023, 9(1): 235-243.
Liwei Du, Liansong Xiong, Mingxian Li, 等. Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter[J]. 中国电机工程学会电力与能源系统学报(英文), 2023,9(1):235-243. DOI： 10.17775/CSEEJPES.2019.02810.

Liwei Du, Liansong Xiong, Mingxian Li, et al. Detection Scheme of Positive Sequence Components Based on Operation Period Delay Filter[J]. CSEE Journal of Power and Energy Systems, 2023, 9(1): 235-243. DOI： 10.17775/CSEEJPES.2019.02810.

摘要

Abstract

Fast and accurate acquisition of positive sequence components of unbalanced grid voltage is an essential requirement to ensure the safety operation of the grid-connected inverter. To improve the extraction speed of positive sequence components of unbalanced voltage

this study proposes a sampling period delay filter (SPDF) to quickly separate positive and negative sequence components by delaying two sampling periods of grid voltage in dq frame. With the SPDF method

only one coordinate transformation is required and the computational burden can be reduced apparently. Then

the noise immunity performance of the proposed SPDF algorithm is investigated; and the corresponding solution

operation period delay filter (OPDF)

can guarantee the desired fast response performance under the premise of limiting the amplified noise within the acceptable range. Finally

the feasibility and priority of the above two algorithms have been verified by the simulation and experimental results.

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