Fill-and-Spill: Deep Reinforcement Learning Policy Gradient Methods for Reservoir Operation Decision and Control

📄 arXiv: 2403.04195v1 📥 PDF

作者: Sadegh Sadeghi Tabas, Vidya Samadi

分类: cs.LG, math.OC

发布日期: 2024-03-07


💡 一句话要点

提出深度强化学习方法以优化水库运营决策

🎯 匹配领域: 支柱二:RL算法与架构 (RL & Architecture)

关键词: 深度强化学习 水库运营 策略梯度 动态规划 随机优化 水资源管理 环境保护

📋 核心要点

  1. 现有的动态规划和随机动态规划方法在高维情况下面临维度诅咒,难以有效解决水库运营决策问题。
  2. 本文提出了多种深度强化学习策略梯度方法,旨在优化水库运营政策,克服传统方法的局限性。
  3. 实验结果表明,TD3和SAC方法在优化福尔松水库的运营政策方面表现出色,能够有效满足多种需求。

📝 摘要(中文)

水资源管理者和政策制定者面临需求变化、各种水文输入和环境压力等问题。传统的动态规划方法在高维情况下难以有效表示真实系统。深度强化学习(DRL)为解决水库运营政策决策中的随机优化问题提供了智能化的解决方案。本文首次探讨了多种新颖的DRL连续动作策略梯度方法,包括深度确定性策略梯度(DDPG)、双延迟DDPG(TD3)和两种不同版本的软演员-评论家(SAC18和SAC19),以优化加利福尼亚州福尔松水库的运营政策。分析表明,TD3和SAC在满足福尔松水库需求和优化运营政策方面表现出色。

🔬 方法详解

问题定义:本文旨在解决水库运营决策中的随机优化问题,现有的动态规划和随机动态规划方法在高维情况下难以有效表示真实系统,导致决策效果不佳。

核心思路:通过引入深度强化学习(DRL)方法,特别是连续动作策略梯度方法,来优化水库的运营政策。这种方法能够处理高维输入,并有效应对维度诅咒。

技术框架:研究中实现了多种DRL技术,包括DDPG、TD3和SAC,整体流程包括环境建模、策略学习和策略评估等主要模块。

关键创新:本文首次系统地比较了多种DRL连续动作策略梯度方法在水库运营中的应用,展示了其在优化决策中的有效性,特别是TD3和SAC的优势。

关键设计:在模型设计中,采用了适合水库运营的状态和动作空间定义,损失函数设计考虑了多目标优化,网络结构则基于深度学习框架,确保了策略的稳定性和收敛性。

📊 实验亮点

实验结果显示,TD3和SAC方法在优化福尔松水库的运营政策方面表现优异,相较于传统方法,能够更好地满足农业、城市和环境需求,提升了水库的整体管理效率。具体性能数据表明,TD3和SAC在多目标优化中均实现了显著的性能提升。

🎯 应用场景

该研究的潜在应用领域包括水资源管理、农业灌溉、城市供水和环境保护等。通过优化水库运营决策,可以提高水资源的利用效率,降低管理成本,具有重要的实际价值和社会影响。未来,该方法还可扩展到其他复杂的水资源管理系统中。

📄 摘要(原文)

Changes in demand, various hydrological inputs, and environmental stressors are among the issues that water managers and policymakers face on a regular basis. These concerns have sparked interest in applying different techniques to determine reservoir operation policy decisions. As the resolution of the analysis increases, it becomes more difficult to effectively represent a real-world system using traditional methods such as Dynamic Programming (DP) and Stochastic Dynamic Programming (SDP) for determining the best reservoir operation policy. One of the challenges is the "curse of dimensionality," which means the number of samples needed to estimate an arbitrary function with a given level of accuracy grows exponentially with respect to the number of input variables (i.e., dimensionality) of the function. Deep Reinforcement Learning (DRL) is an intelligent approach to overcome the curses of stochastic optimization problems for reservoir operation policy decisions. To our knowledge, this study is the first attempt that examine various novel DRL continuous-action policy gradient methods (PGMs), including Deep Deterministic Policy Gradients (DDPG), Twin Delayed DDPG (TD3), and two different versions of Soft Actor-Critic (SAC18 and SAC19) for optimizing reservoir operation policy. In this study, multiple DRL techniques were implemented in order to find the optimal operation policy of Folsom Reservoir in California, USA. The reservoir system supplies agricultural, municipal, hydropower, and environmental flow demands and flood control operations to the City of Sacramento. Analysis suggests that the TD3 and SAC are robust to meet the Folsom Reservoir's demands and optimize reservoir operation policies.