Study on Inter-station Flow Response in Short-term Operation of Jindong-Guandi Cascade Hydropower Stations

Study on Inter-station Flow Response in Short-term Operation of Jindong-Guandi Cascade Hydropower Stations

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Jun-cong LI^a^,^b, Yong-chuan ZHANG^a^,^b, Hui QIN^a^,^b, Wei FANG^a^,^b, Jia-hong YAO^a^,^b, Jing-wei HUANG^a^,^b

Water Resources and Power | 2023, 41(7) : 75 - 79

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Water Resources and Power | 2023, 41(7): 75-79

• HYDROLOGICAL FORECAST AND OPTIMAL SCHEDULING •

Study on Inter-station Flow Response in Short-term Operation of Jindong-Guandi Cascade Hydropower Stations

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Jun-cong LI^a^,^b, Yong-chuan ZHANG^a^,^b, Hui QIN^a^,^b, Wei FANG^a^,^b, Jia-hong YAO^a^,^b, Jing-wei HUANG^a^,^b

Affiliations

^a.School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

^b.Hubei Key Laboratory of Digital Valley Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China

Published: 2023-07-25 doi: 10.20040/j.cnki.1000-7709.2023.20230172

Outline

Abstract

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This paper aims at the complex flow response relationship in the short-term joint operation of Jindong-Guandi cascade hydropower stations in Yalong River basin. In order to predict the inflow response process of the Guandi hydropower station, the random forest (RF) model and support vector regression (SVR) model were combined to mine the nonlinear relationship, and compared with the traditional lag-time model and the Muskingum model. On this basis, two simulation dispatching models were established to test the applicability of each model in the short-term operation of cascade hydropower stations. The result shows that the RF-SVR model has a higher fitting ability for the flow response relationship between hydropower stations, which can reduce the errors in the formulation of short-term dispatching plan, and effectively reduce the deviation of daily generation and the risk of water level violation. The research results can provide a reference for making short-term dispatching schemes of cascade power stations under complex hydraulic connections.

Key words

flow response between hydropower stations / short-term operation of hydropower station / random forest / support vector regression

Cite this Article

Jun-cong LI, Yong-chuan ZHANG, Hui QIN, Wei FANG, Jia-hong YAO, Jing-wei HUANG. Study on Inter-station Flow Response in Short-term Operation of Jindong-Guandi Cascade Hydropower Stations[J]. Water Resources and Power, 2023 , 41 (7) : 75 -79 . DOI: 10.20040/j.cnki.1000-7709.2023.20230172

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Year 2023 volume 41 Issue 7

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Article Info

doi: 10.20040/j.cnki.1000-7709.2023.20230172

Receive Date：2023-02-10
Online Date：2026-01-28
Published：2023-07-25

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History

Received：2023-02-10
Revised：2023-03-15

Funding

Affiliations

^a.School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

^b.Hubei Key Laboratory of Digital Valley Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China

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表12种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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