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Deadbeat Active Disturbance Rejection Controller for the Current Control of Electric Drives in the Presence of Two-step Delay
编号：131 访问权限：仅限参会人 更新：2022-05-17 09:26:13 浏览：222次 张贴报告

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摘要
Generally, the PWM updating causes one-step delay in the digital current control system, hence the deadbeat current control can be easily achieved by predicting the current with one more step. However, in the control system implemented on the platform based on the dSPACE DS1103, two-step delay exists in the platform. In this paper, the effect of the two-step delay on the classical deadbeat current control (DBCC) is investigated. It shows that the classical DBCC will be unstable even when the inductances are matched. Since one-step delay and two-step delay appear alternately in the system, the two-step prediction method cannot be used. As a result, a deadbeat active disturbance rejection control (DB-ADRC) is employed. A digital extended state observer (ESO) is developed to improve the system’s robustness to both the parameter variations and delay variation. Effectiveness of the proposed method is verified by experimental results.
 
关键词
Digital Control System;Deadbeat Current Control;Active Disturbance Rejection Control;One-step Delay;Stability
报告人
BenxiangZhang
Student Jiangsu University

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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

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IEEE Beijing Section
China Electrotechnical Society
Southeast University
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