Experimental investigation of a compound force tracking control strategy for electro-hydraulic hybrid testing system with suppression of vibration disturbances
Experimental investigation of a compound force tracking control strategy for electro-hydraulic hybrid testing system with suppression of vibration disturbances
复制标题
抑制振动扰动的电液混合试验系统复合力跟踪控制策略的实验研究
DOI：
10.1177/0954406216631782
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发表时间：
2017-03
期刊：
影响因子：
--
通讯作者：
沈刚
中科院分区：
文献类型：
--
作者：
朱真才;汤裕;沈刚
电液混合试验是一种新型的结构试验方法，它将所需的加速度和力并行地施加到试件上，广泛应用于土木工程和地震工程中。为了有效抑制力控制过程中试件加速度运动产生的多余力，提出了一种由力电压前馈控制器（FVFC）和带干扰观测器的前馈逆控制器（FIDOB）组成的复合力跟踪控制策略。该方法首先利用所产生的力反馈信号和加速度执行器的实时控制电压信号构成FVFC控制器作为内环前馈分量，以补偿试件的加速度运动，从而获得较好的抗干扰性能，且该FVFC控制器对系统动态结构或参数的信息要求不高。然后将前馈逆控制器和基于逆模型的干扰观测器组成的FIDOB控制器与FVFC控制器结合作为外环，进一步处理FVFC控制的电液混合试验系统的剩余干扰。针对比例积分控制静态加载系统，采用频域复曲线拟合和零误差跟踪技术，得到了FIDOB控制器的逆模型。因此，该控制器集成了FVFC控制器和FIDOB控制器的优点，易于实现和高跟踪性能。最后，采用xPC快速成型技术在单轴电液混合试验台上进行了对比实验，实验结果验证了所提控制策略的有效性。
Electro-hydraulic hybrid testing, which imposes the desired acceleration and force on the specimen in parallel, is a novel structural testing method for structures or facilities and is extensively applied in civil and seismic engineering. To efficiently suppress the surplus force resulted from the acceleration motion of the specimen during the force control process, a compound force tracking control strategy comprised of a force and voltage feedforward controller (FVFC) and feedforward inverse with disturbance observer (FIDOB) controller is presented in this research. The FVFC controller as an inner loop feedforward component is first constituted by the generated force feedback signal and the real-time control voltage signal of the acceleration actuator so as to compensate for the acceleration motion of the specimen for a better disturbance rejection performance, and the FVFC controller requires little information of the system dynamic structure or parameters. The FIDOB controller composed by a feedforward inverse controller and an inverse model-based disturbance observer is then combined with the FVFC controller as an outer loop to further deal with the remaining disturbances for the FVFC-controlled electro-hydraulic hybrid testing system. The inverse model applied in the FIDOB controller is obtained with the frequency domain complex curve fitting and zero magnitude error tracking technology with respect to the proportional–integral controlled static loading system. Hence, the proposed controller integrates the advantages of the FVFC controller and FIDOB controller in terms of easy implementation and high tracking performance. Finally, comparative experiments are carried out on an uniaxial electro-hydraulic hybrid testing test rig with the xPC rapid prototyping technology and experimental results demonstrate the effectiveness of the proposed control strategy.
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影响因子：
5.7
作者：
Jianyong Yao;Z. Jiao;B. Yao;Yaoxing Shang;W. Dong
通讯作者：
Jianyong Yao;Z. Jiao;B. Yao;Yaoxing Shang;W. Dong
DOI：
10.1061/(asce)st.1943-541x.0000314
发表时间：
2011-07
期刊：
Journal of Structural Engineering-asce
影响因子：
--
作者：
X. Shao;A. Reinhorn;M. Sivaselvan
通讯作者：
X. Shao;A. Reinhorn;M. Sivaselvan
影响因子：
5.7
作者：
Zongxia Jiao;Jun Gao;Hua Qing;Shaoping Wang
通讯作者：
Zongxia Jiao;Jun Gao;Hua Qing;Shaoping Wang
DOI：
10.1243/09544062jmes1795
发表时间：
2010-04
期刊：
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
影响因子：
--
作者：
J. Pan;G. Shi;X. Zhu
通讯作者：
J. Pan;G. Shi;X. Zhu
DOI：
10.1109/icmlc.2006.258453
发表时间：
2006-08
期刊：
2006 International Conference on Machine Learning and Cybernetics
影响因子：
--
作者：
Geqiang Li;Jian Cao;Biao Zhang;K. Zhao
通讯作者：
Geqiang Li;Jian Cao;Biao Zhang;K. Zhao