In:
Eksploatacja i Niezawodność – Maintenance and Reliability, Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne, Vol. 22, No. 1 ( 2020-3-31), p. 42-51
Abstract:
The complexity of control algorithms and their vulnerability to disturbances and failures are the main problems that restrict the
operations of multi-legged mobile robots in more complex environments. In this paper, a multiple extended state observer (ESO) based control strategy is proposed to achieve stable tilt angle control for quadruped robots under the influence of disturbances
and actuator failures. By treating the multiple legs as parallel control objects, more ESOs were added to improve the disturbance rejection ability of the linear active disturbance rejection control (LADRC). Correlation of interactive information about the legs
is realized by the synthesis of multiple ESO information. Based on LADRC, this method has the advantages of easy parameter tuning, good robustness, and strong ability to cope with interference and fault conditions. A control system reliability evaluation
method was proposed. The reliability and control performance of the multi-ESO based control system under leg stuck failure conditions were systematically ana lyzed. Simulation and experimental results for the level adjustment control system of a quadruped
robot are provided to verify the disturbance rejection ability, feasibility and practicability of the proposed multi-ESO based control method
Type of Medium:
Online Resource
ISSN:
1507-2711
,
2956-3860
Uniform Title:
Analiza niezawodności strategii sterowania w oparciu o kilka obserwatorów stanu rozszerzonego ESO i jej zastosowanie w systemie kontroli regulacji poziomu czworonożnego robota w warunkach zakłóceń i uszkodzeń
DOI:
10.17531/ein.2020.1.6
Language:
Polish
Publisher:
Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
Publication Date:
2020
detail.hit.zdb_id:
2257067-6
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