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Electrical Engineering and Systems Science > Systems and Control

arXiv:2108.02003 (eess)
[Submitted on 30 Jul 2021 (v1), last revised 3 Nov 2022 (this version, v3)]

Title:Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller

Authors:Maxime Volery, Xinxin Guo, Hervé Lissek
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Abstract:This paper presents an acoustic impedance control architecture for an electroacoustic absorber combining both a feedforward and a feedback microphone-based strategies on a current-driven loudspeaker. Feedforward systems enable good performance for direct impedance control. However, inaccuracies in the required actuator model can lead to a loss of passivity, which can cause unstable behaviors. The feedback contribution allows the absorber to better handle model errors and still achieve an accurate impedance, preserving passivity. Numerical and experimental studies were conducted to compare this new architecture against a state-of-the-art feedforward control method.
Subjects: Systems and Control (eess.SY)
Cite as: arXiv:2108.02003 [eess.SY]
  (or arXiv:2108.02003v3 [eess.SY] for this version)
  https://doi.org/10.48550/arXiv.2108.02003
Related DOI: https://doi.org/10.1051/aacus/2022058

Submission history

From: Maxime Volery [view email]
[v1] Fri, 30 Jul 2021 07:46:55 UTC (1,089 KB)
[v2] Wed, 13 Jul 2022 07:45:27 UTC (1,050 KB)
[v3] Thu, 3 Nov 2022 15:22:12 UTC (3,482 KB)
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