具有执行器故障的有源表面系统的容错

IF 1.6 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Advances in Astronomy Pub Date : 2021-02-26 DOI:10.1155/2021/6675846

Danqing Zhang, B. Xiang, A. Yusup, Na Wang, Guljaina Kazezkhan

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引用次数: 0

摘要

七台射电望远镜(QTT)将配备主动地面调整系统(ASAS)，以纠正由环境载荷引起的主反射面变形。为了保证主动地面系统在故障条件下的稳定性和性能，有必要在执行机构发生故障时采用容错方法。针对地面主动故障控制问题，提出了一种基于执行器故障加权的故障控制方法。根据故障执行器对应的面板可调点坐标，通过加权健康矩阵拟合新的抛物面，并以拟合曲面为目标进行曲面形状调整。

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Fault Tolerance for Active Surface System with Actuator Faults

The QiTai Radio Telescope (QTT) will be equipped with the active surface adjustment system (ASAS) to correct the main reflector deformation caused by environmental loading. In order to guarantee the stability and performance of the active surface system under fault conditions, it is necessary to adopt the fault-tolerant method when actuator faults have occurred. In this paper, a fault control method based on actuator faults weighting is proposed to solve the active surface fault control problem. According to the coordinates of the adjustable points of the panels corresponding to the faulty actuators, a new paraboloid is fitted by a weighted health matrix, and the fitting surface is taken as the target to adjust the surface shape.

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来源期刊

Advances in Astronomy ASTRONOMY & ASTROPHYSICS-

CiteScore

2.70

自引率

7.10%

发文量

审稿时长

22 weeks

期刊介绍： Advances in Astronomy publishes articles in all areas of astronomy, astrophysics, and cosmology. The journal accepts both observational and theoretical investigations into celestial objects and the wider universe, as well as the reports of new methods and instrumentation for their study.