Non-Anticipative Flexibility Assessment of Hybrid Pumped-Storage Hydropower Plants via Storage-Envelope Certification
貯蔵エンベロープ認証によるハイブリッド揚水発電所の非先見的柔軟性評価 (AI 翻訳)
Ying Wang, Rui Xie, Xu Ling, Zhihui Su, Xiaowei Yu, Zhen Liu, Jia Wang
🤖 gxceed AI 要約
日本語
本論文は、ハイブリッド揚水発電所の非先見的柔軟性評価法を提案し、貯蔵エンベロープ認証により多期間の有効電力要求領域を構築する。中国の白山・紅石ハイブリッド揚水発電所のケーススタディで有効性を示し、系統運用者の柔軟性限界設定や再配分に役立つ。
English
This paper proposes a non-anticipative flexibility assessment method for hybrid pumped-storage hydropower plants, using a storage-envelope certificate to construct a multi-period active power request region. A case study on the Baishan-Hongshi plant in China demonstrates effectiveness, aiding operators in setting flexibility limits and redispatch rules.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では再生可能エネルギーの導入拡大に伴い、揚水発電の柔軟性評価が重要。本手法は系統運用者の日々の運用計画や需給調整に貢献し、電力市場での柔軟性取引にも応用可能。
In the global GX context
Globally, as renewable penetration increases, pumped-storage hydropower is key for grid flexibility. This method provides a rigorous, non-anticipative certification of flexibility regions, relevant for grid operators and market design under high renewables.
👥 読者別の含意
🔬研究者:Provides a novel method for certifying flexibility regions in hybrid pumped-storage plants, advancing grid integration research.
🏢実務担当者:Offers a tool for operators to screen power requests and set day-ahead flexibility limits, improving operational reliability.
🏛政策担当者:Highlights the value of pumped-storage in renewable integration, informing grid planning and market rules.
📄 Abstract（原文）
Hybrid pumped-storage hydropower plants can provide substantial flexibility for renewable energy integration, but their available power range is strongly coupled with reservoir dynamics and future grid requests. This paper proposes a non-anticipative flexibility assessment method for constructing a multi-period active power request region that can be reliably tracked under causal operation. A sufficient storage-envelope certificate is developed for a continuous aggregate plant model, ensuring that every request trajectory within the resulting hyperrectangular region can be followed using only information available up to the current period, while satisfying hydraulic constraints and terminal storage requirements. Under the stated hydraulic and spill assumptions, monotonicity of the one-period storage transition set reduces the semi-infinite forward-invariance conditions to endpoint dispatch checks. The resulting single-stage nonlinear formulation is implemented as a mixed-integer linear program using piecewise-linear approximations. The certified active power intervals are further used to construct compatible active–reactive power capability regions. A case study based on the Baishan–Hongshi hybrid pumped-storage hydropower plant in China shows the effectiveness of the proposed method. The resulting capability region can help operators screen requested power profiles and set defensible day-ahead or intraday flexibility limits, while the storage envelope provides a state-dependent rule for causal scheduling-level redispatch that preserves deliverability later in the horizon.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/en19163752first seen 2026-08-14 05:51:04
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