WU Ying,WANG Juefei,LI Junjie,et al.A hydropower plant scheduling model considering the stochastic correlation between runoff and electricity prices[J].ZHEJIANG ELECTRIC POWER,2025,44(01):24-33.
WU Ying,WANG Juefei,LI Junjie,et al.A hydropower plant scheduling model considering the stochastic correlation between runoff and electricity prices[J].ZHEJIANG ELECTRIC POWER,2025,44(01):24-33. DOI: 10.19585/j.zjdl.202501003.
A hydropower plant scheduling model considering the stochastic correlation between runoff and electricity prices
Evaluating and addressing the risks posed by runoff and electricity prices in hydropower plants involved in medium-to long-term scheduling is a pressing issue. To address this, a scheduling model is proposed that aims to maximize expected net revenue while minimizing medium- to long-term operational risks. First, using the conditional value at risk (CVaR) theory, marginal distribution functions are utilized to characterize the risks of runoff uncertainty and electricity price volatility (EPV), enabling accurate risk assessment for market-operated hydropower plants. Second, the least-squares cross validation (LSCV) is applied to determine the optimal bandwidth parameter in kernel density estimation (KDE), ensuring a good fit for discrete runoff and electricity price data. Next, a Copula-Monte Carlo simulation method is used to model the joint risks of runoff and electricity prices, with Latin hypercube sampling (LHS) employed to enhance computational precision. Finally, case simulation and analysis are conducted to validate the effectiveness of the proposed model.
WANG Mingbo , LI Gang , LI Yapeng , et al . Decomposition method for medium and long-term contract of cascaded hydropower taking into account multi trading modes [J]. Proceedings of the CSEE: 1 - 12 .[ 2024-05-10 ]. https://doi.org/10.13334/j.0258-8013.pcsee.231972 https://doi.org/10.13334/j.0258-8013.pcsee.231972 .
LI Yapeng , ZHAO Zhipeng , YU Shen , et al . Risk constrained monthly generation scheduling of cascade hydropower plants in multiple time scale markets [J]. Proceedings of the CSEE , 2020 , 40 ( 8 ): 2525 - 2535 .
LIU B X , LIAO S L , CHENG C T , et al . Hydropower curtailment in Yunnan Province,southWestern China:constraint analysis and suggestions [J]. Renewable Energy , 2018 , 121 : 700 - 711 .
TORABI HAGHIGHI A , BIN ASHRAF F , RIML J , et al . A power market-based operation support model for sub-daily hydropower regulation practices [J]. Applied Energy , 2019 , 255 : 113905 .
LIU Fang , ZHANG Lizi . Bi-level optimization model for medium and long-term scheduling and cross-price area trading portfolio of cascade hydropower stations [J]. Proceedings of the CSEE , 2018 , 38 ( 2 ): 444 - 455 .
LI Yapeng , ZHAO Lin , WANG Xiangzhen , et al . Bi-level bidding model for cascaded hydropower under uncertain carbon-electricity coupled market [J]. Automation of Electric Power Systems , 2023 , 47 ( 20 ): 83 - 94 .
LIU Fang , ZHANG Lizi . Optimization model and method of cascade hydropower scheduling transaction considering stochastic and risk factors [J]. Power System Technology , 2018 , 42 ( 3 ): 870 - 878 .
ALGARVIO H , LOPES F , SOUSA J , et al . Multi-agent electricity markets:retailer portfolio optimization using Markowitz theory [J]. Electric Power Systems Research , 2017 , 148 : 282 - 294 .
WANG Jun , XU Jian , WANG Jingjing , et al . Bi-level stochastic optimization for a virtual power plant participating in energy and reserve market based on conditional value At risk [J]. Power System Technology , 2024 , 48 ( 6 ): 2502 - 2510 .
YAO Yan , KANG Jiale , WANG Yajing , et al . Optimal dispatching of integrated energy system considering integrated demand response and multi-energy storage devices [J]. Zhejiang Electric Power , 2022 , 41 ( 8 ): 65 - 72 .
LIU Jun , LI Lingyang , WU Mengkai , et al . A two-stage optimal operation strategy of distributed pumped storage power plant and new energy power generation jointly participating in spot market [J]. Zhejiang Electric Power , 2023 , 42 ( 2 ): 50 - 58 .
TANG Li , LIU Jichun , YANG Yangfang , et al . Study on strategies of electricity procurement and sale of power retailer with multiple retail contract modes based on information gap decision theory [J]. Power System Technology , 2019 , 43 ( 6 ): 1978 - 1988
XU Jialiang , LI Xiaolu , LIU Jinsong , et al . Robust pricing strategies for integrated energy systems and charging stations considering multiple uncertainties [J]. Modern Electric Power , 1 - 13 [ 2024-05-31 ]. https://doi.org/10.19725/j.cnki.1007-2322.2023.0127 https://doi.org/10.19725/j.cnki.1007-2322.2023.0127 .
GE X L , ZHANG L Z , SHU J , et al . Short-term hydropower optimal scheduling considering the optimization of water time delay [J]. Electric Power Systems Research , 2014 , 110 : 188 - 197 .
SHEN Jiacheng , LI Mengshi , JI Tianyao , et al . Joint optimization for low-carbon operation of high-penetration renewable energy system based on multi-layer conditional value-at-risk [J]. Power System and Clean Energy , 2024 , 40 ( 2 ): 37 - 46 .
CHEN Yujia , PEI Wei , MA Tengfei , et al . Asymmetric nash bargaining model for P2P transactions between distributed generation and consumers considering conditional value-at-risk [J]. Modern Electric Power , 1 - 13 [ 2024-06-10 ]. https://doi.org/10.19725/j.cnki.1007-2322.2023.0065 https://doi.org/10.19725/j.cnki.1007-2322.2023.0065 .
MOHAMMADKARIMI M , DOBRE O A . Blind identification of spatial multiplexing and alamouti space-time block code via Kolmogorov-Smirnov (K-S) test [J]. IEEE Communications Letters , 2014 , 18 ( 10 ): 1711 - 1714 .
TONG Kun , LIU Heng , GENG Leihua , et al . AM-MCMC algorithm for runoff simulation model based on kernel density estimation [J]. Journal of Yangtze River Scientific Research Institute , 2018 , 35 ( 1 ): 36 - 39 .
LU J , LI G , CHENG C T , et al . A long-term intelligent operation and management model of cascade hydropower stations based on chance constrained programming under multi-market coupling [J]. Environmental Research Letters , 2021 , 16 ( 5 ): 055034 .