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arXiv 2108.10652math.OC
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多智能体网络中基于双邻近梯度法的耦合约束分布式Optimization

Distributed Optimization with Coupling Constraints Based on Dual Proximal Gradient Method in Multi-Agent Networks

Jianzheng Wang, Guoqiang Hu

摘要:

在本文中,我们的目标是解决一个分布式最优化问题与仿射耦合约束的多智能体网络,其中的费用函数的代理是由光滑和可能的非光滑部分。为了解决这个问题,我们诉诸对偶问题,通过推导Fenchel共轭,从而在基于共识的约束最优化问题。然后,我们提出了一个分布式的双邻近梯度算法,其中的代理作出决定的直接邻居的信息的基础上。只要原始费用函数中的非光滑部分具有简单的结构,只需通过简单的操作更新对偶变量,就可以降低整体的计算复杂性。通过求解电力市场中的社会福利最优化问题,证明了算法的遍历收敛速度和可行性。

英文摘要:

In this paper, we aim to solve a distributed optimization problem with affine coupling constraints in a multi-agent network, where the cost function of the agents is composed of smooth and possibly non-smooth parts. To solve this problem, we resort to the dual problem by deriving the Fenchel conjugate, resulting in a consensus-based constrained optimization problem. Then, we propose a distributed dual proximal gradient algorithm, where the agents make decisions based on the information of immediate neighbors. Provided that the non-smooth parts in the primal cost functions are with some simple structures, we only need to update dual variables by some simple operations, by which the overall computational complexity can be reduced. An ergodic convergence rate of the proposed algorithm is derived and the feasibility is numerically verified by solving a social welfare optimization problem in the electricity market.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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