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논문 기본 정보

자료유형
학술대회자료
저자정보
Jinwoo Park (Pohang University of Science and Technology) Changhyeon Lee (Pohang University of Science and Technology) Donghyeong Kim (Pohang University of Science and Technology) Soohee Han (Pohang University of Science and Technology)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2024
발행연도
2024.10
수록면
691 - 696 (6page)

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This paper introduces a method for determining and verifying the gain values of Linear Quadratic Regulator(LQR) controller in the complex task of balancing an inverted pendulum using a quadrotor. In the LQR controller, user must specify the weight matrices for states and control inputs, which becomes challenging as these matrices increase in size. The method presented in this paper utilizes Bayesian optimization with Expected Improvement (EI) to address the difficulty of selecting the weight matrices in the LQR controller. Through Expected Improvement, the global optimization point can be found at a low cost and in a short time. By parameterizing the weight matrices, the optimization method was easily applied. It was confirmed that the controller gain values, composed of 9-dimensional parameters for the given task, could be determined quickly and efficiently. Consequently, the proposed method for selecting the weight matrices demonstrated a reduction in the position error of the inverted pendulum compared to using arbitrarily chosen initial weight matrices. Additionally, the simulation tests confirmed a reduction in settling time.

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Abstract
1. INTRODUCTION
2. DYNAMICS
3. CONTROLLER TUNING WITH BAYESIAN OPTIMIZATION
4. EXPERIMENTAL RESULTS
5. CONCLUSION AND FUTUREWORK
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