Lattice piecewise affine approximation of explicit linear model predictive control
Lattice piecewise affine approximation of explicit linear model predictive control
复制标题
显式线性模型预测控制的格分段仿射逼近
DOI:
10.1109/cdc45484.2021.9683051
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发表时间:
2021-12
期刊:
影响因子:
--
通讯作者:
Jun Xu
中科院分区:
文献类型:
--
作者:
Jun Xu
In this paper, the lattice piecewise affine (PWA) approximation of explicit linear model predictive control (MPC) is proposed. The training data consists of the state samples and corresponding affine control laws, based on which the lattice PWA approximation is constructed. The proposed approximation is identical to the explicit MPC control law in unique-order (UO) regions containing the sample points as interior points, thus resemble the explicit MPC control law in a large number of regions. Through simplifying the terms and literals in the lattice PWA approximation, both the storage requirement and online computation complexity are largely decreased. The performance of the proposed approximation strategy is tested through a simulation example, and the result shows that with a moderate number of sample points, the lattice PWA approximation is very close to the explicit MPC control law.
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