首页|Robust Two-Stage Actuator Control Strategy for Multi-Axial Real-Time Hybrid Simulation Using H∞ Control Theory

Robust Two-Stage Actuator Control Strategy for Multi-Axial Real-Time Hybrid Simulation Using H∞ Control Theory

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  • NETL
  • NSTL
  • Wiley
Real-time hybrid simulation (RTHS) offers a cost-effective method for evaluating the dynamic response of structural systems. However, multi-axis RTHS (maRTHS) faces challenges, including time delays, actuator coupling, and system uncertainties, which can compromise its accuracy and even stability. To address these issues, this paper proposes a robust two-stage actuator control approach, which leverages a H∞ control strategy combined with an inverse compensator. In the first stage, a H∞ controller is designed based on the mixed-sensitivity functions to address modeling uncertainties, parameter uncertainties, and external disturbances. This ensures the RTHS system's stable tracking performance, robust characteristics, and decoupling among different actuators. The second stage uses an inverse compensator individually for each actuator, further reducing system time delay and enhancing tracking accuracy for the nearly decoupled system. This methodology is illustrated through a maRTHS benchmark problem. Virtual RTHS results show that the proposed robust two-stage control method not only achieves excellent tracking performance but also has robustness under diverse operating conditions.

H∞ controlinverse compensatormaRTHSmixed-sensitivityrobustnesstime delay

Xiaoquan Xie、Wei Huang、Xizhan Ning

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College of Civil Engineering, Huaqiao University, Xiamen, China

College of Civil Engineering, Huaqiao University, Xiamen, China||School of Infrastructure Engineering, Dalian University of Technology, Dalian, China

College of Civil Engineering, Huaqiao University, Xiamen, China||Key Laboratory for Intelligent Infrastructure and Monitoring of Fujian Province, Huaqiao University, Xiamen, China

2025

10.1002/tal.70031

The structural design of tall buildings

The structural design of tall buildings

ISSN：1541-7808
年,卷(期)：2025.34(7)
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