@techreport{oai:ipsj.ixsq.nii.ac.jp:00208741, author = {山口, 悟史 and 金, 多仁 and Satoshi, Yamaguchi and Dain, Kim}, issue = {4}, month = {Dec}, note = {ダムの放流計画を自動作成するための数理最適化手法「プログレッシブ動的計画法」を提案する.近年の水害の頻発を受け,従来にない放流計画が求められている.ダム放流量を急激に変化させない「放流の原則」を満たしつつ,大雨に先立ってダムの容量を空けておく「事前放流」,下流の河川流量を小さく抑えるために複数のダムからタイミングをずらして放流する「ダム群連携操作」を実現するために,提案手法は離散微分動的計画法を繰り返すことで段階的に解像度を向上させる.これにより提案手法は放流量を高い解像度(1m3/s)で探索する.N 川ダム群を対象にシミュレーション実験を行った結果,現在のダム操作規則では 3 ダムとも緊急放流に至るケースであっても,提案手法では緊急放流を避け,かつ下流河川のピーク流量を 41% 下げる解を見つけた.対象期間 1.5 日の最適化に要した時間は 191 秒であった.提案手法がダムの放流計画の自動作成に有用であると結論する., We propose Progressive Dynamic Planning Method to automate reservoir operation planning. To mitigate flood damage, unprecedented discharge plans are required. While satisfying the "principle of discharge" that slowly change the discharge, "prerelease" to keep the capacity of the reservoir prior to heavy rain, and "reservoir group cooperation" that shifts the timing of discharge peak in order to reduce the peak discharge of the lower river is considered by the proposed method, which optimizes the discharge at a high resolution (1 m3/s). The proposed method progressively improves resolution by repeating discrete differential dynamic planning. Simulation experiment results on N river reservoir group showed that the proposed method avoided emergency release and found a solution to lower the peak discharge of the lower river by 41% against given inflow timeseries which cause emergency release at all three reservoirs by obeying the actual reservoir operation rules. The computational time was 191 seconds to optimize the target period of 1.5 days. We conclude that the proposed method is useful to reservoir operation planning.}, title = {ダム放流計画の自動作成のための「プログレッシブ動的計画法」の開発}, year = {2020} }