A hybrid optimal PID-LQR control of structural system: A case study of salp swarm optimization
A hybrid optimal PID-LQR control of structural system: A case study of salp swarm optimization
复制标题
结构系统混合最优PID-LQR控制：以樽海鞘群优化为例
DOI：
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发表时间：
2018
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通讯作者：
A. Karsaz
中科院分区：
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作者：
Seyem Mahdi Hadad Baygi;A. Karsaz
本文将比例积分微分(PID)控制器和线性二次型调节器(LQR)控制方法相结合，提出了一种有效的混合控制方法。所提出的PID-LQR控制器既具有传统的PID控制器的优点，又易于实现对结构系统的减振。针对安装了ATM阻尼器的四自由度建筑，采用一种新的优化算法--群体优化(SSA)算法进行优化，并与其他四种进化算法进行了比较，以显示基于SSA的PID-LQR控制器的性能。将El Centro地震加速度数据作为扰动，对所提出的基于SSA的LQR-PID控制器的性能进行了评估。将仿真结果与粒子群算法(PSO)、人工蜂群算法(ABC)、鲸鱼优化算法(WOA)和蚂蚁优化算法(ALO)等四种进化算法优化后的LQR控制器和LQR-PID控制器进行了比较，结果表明基于SSA的LQR-PID控制器的性能优于其他算法。仿真结果表明，与其他方法相比，LQR-PID方法在降低结构层位移幅值方面效果更好。
This paper proposes an effective hybrid control approach through getting together the proportional-integral-derivative (PID) controller and linear quadratic regulator (LQR) control method. The proposed PID-LQR controller, while having the benefits of the PID controller, is easy to implement in reducing vibration on structural systems. Using an optimization procedure based on a new optimization algorithm called slap swarm optimization (SSA) algorithm and compare with four other evolutionary algorithms to show the SSA-base PID-LQR performance, the LQR-PID controller is designed for a building with four degree of freedom equipped with a ATM damper. By Considering the EL Centro earthquake acceleration data as disturbance, the performance of the proposed SSA base LQR-PID controller is evaluated. Then, the results are compared with LQR controller and LQR-PID controller which is optimized by four other evolutionary algorithms such as particle swarm optimization(PSO), artificial bee colony(ABC), whale optimization algorithm(WOA) and ant lion optimizer (ALO) to show the better performance of the SSA base LQR-PID controller than the other algorithm. The simulation results demonstrate that the LQR-PID performs better than the other methodologies which is compared in decreasing the amplitude of seismic responses of the structure in the terms of displacement of stories of the structure.