Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion Management

Southwest China possesses substantial hydropower potential and abundant solar resources. To harness these renewable resources effectively, extensive photovoltaic (PV) facilities and cascaded hydropower stations have been strategically constructed in mountainous regions, culminating in the developmen...

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Main Authors: Hong Zhou, Liang Lu, Mingkui Wei, Li Shen, Youbo Liu
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10373029/
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author Hong Zhou
Liang Lu
Mingkui Wei
Li Shen
Youbo Liu
author_facet Hong Zhou
Liang Lu
Mingkui Wei
Li Shen
Youbo Liu
author_sort Hong Zhou
collection DOAJ
description Southwest China possesses substantial hydropower potential and abundant solar resources. To harness these renewable resources effectively, extensive photovoltaic (PV) facilities and cascaded hydropower stations have been strategically constructed in mountainous regions, culminating in the development of hybrid energy systems (HES) that combine hydro, PV, and pumped-storage. Nevertheless, the current research on HES scheduling often neglects the transmission congestion in the local grid to which HES is connected. This oversight results in avoidable curtailment of solar power, load shedding, and water spillage. Hence, this paper introduces a robust optimization model for HES scheduling. The primary objectives are to enhance the integration of renewable energy sources, mitigate water spillage, minimize peak-valley differences in multiple external grids, and alleviate transmission congestion within the HES-connected grid. To validate the effectiveness of this approach, both a modified IEEE 6-bus system and a real-world case study from the Yalong River region in Southwest China are employed. Numerical results illustrate that by involving the HES in local grid congestion management, a substantial reduction in PV generation curtailment and water wastage is achievable, with minimal impact on peak load management in multiple external grids.
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spelling doaj.art-5c562687c6c74e659a4e361637a912112024-02-16T00:01:23ZengIEEEIEEE Access2169-35362024-01-0112222302224210.1109/ACCESS.2023.334667010373029Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion ManagementHong Zhou0Liang Lu1Mingkui Wei2Li Shen3Youbo Liu4https://orcid.org/0000-0002-5465-5243Southwest Branch, State Grid Corporation of China, Chengdu, ChinaSouthwest Branch, State Grid Corporation of China, Chengdu, ChinaSouthwest Branch, State Grid Corporation of China, Chengdu, ChinaSouthwest Branch, State Grid Corporation of China, Chengdu, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu, ChinaSouthwest China possesses substantial hydropower potential and abundant solar resources. To harness these renewable resources effectively, extensive photovoltaic (PV) facilities and cascaded hydropower stations have been strategically constructed in mountainous regions, culminating in the development of hybrid energy systems (HES) that combine hydro, PV, and pumped-storage. Nevertheless, the current research on HES scheduling often neglects the transmission congestion in the local grid to which HES is connected. This oversight results in avoidable curtailment of solar power, load shedding, and water spillage. Hence, this paper introduces a robust optimization model for HES scheduling. The primary objectives are to enhance the integration of renewable energy sources, mitigate water spillage, minimize peak-valley differences in multiple external grids, and alleviate transmission congestion within the HES-connected grid. To validate the effectiveness of this approach, both a modified IEEE 6-bus system and a real-world case study from the Yalong River region in Southwest China are employed. Numerical results illustrate that by involving the HES in local grid congestion management, a substantial reduction in PV generation curtailment and water wastage is achievable, with minimal impact on peak load management in multiple external grids.https://ieeexplore.ieee.org/document/10373029/Cascade hydropower plantspumped-storagerenewable energy integrationgeneration schedulingpeak shavingmultiple interconnected power grids
spellingShingle Hong Zhou
Liang Lu
Mingkui Wei
Li Shen
Youbo Liu
Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion Management
IEEE Access
Cascade hydropower plants
pumped-storage
renewable energy integration
generation scheduling
peak shaving
multiple interconnected power grids
title Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion Management
title_full Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion Management
title_fullStr Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion Management
title_full_unstemmed Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion Management
title_short Robust Scheduling of a Hybrid Hydro/Photovoltaic/Pumped-Storage System for Multiple Grids Peak-Shaving and Congestion Management
title_sort robust scheduling of a hybrid hydro photovoltaic pumped storage system for multiple grids peak shaving and congestion management
topic Cascade hydropower plants
pumped-storage
renewable energy integration
generation scheduling
peak shaving
multiple interconnected power grids
url https://ieeexplore.ieee.org/document/10373029/
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