Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating Zones
The hydropower unit commitment (HUC) is often indirectly considered by combining individual units in a hydropower plant into a plant-based generator to alleviate the dimensional difficulty in short-term hydropower scheduling of cascaded reservoirs. This work presents three procedures to combine oper...
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/3/1435 |
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| author | Yang Wu Wang Xia Jinwen Wang Shuangquan Liu Binbin Zhou Zhenyu Zhao Cheng Chen |
| author_facet | Yang Wu Wang Xia Jinwen Wang Shuangquan Liu Binbin Zhou Zhenyu Zhao Cheng Chen |
| author_sort | Yang Wu |
| collection | DOAJ |
| description | The hydropower unit commitment (HUC) is often indirectly considered by combining individual units in a hydropower plant into a plant-based generator to alleviate the dimensional difficulty in short-term hydropower scheduling of cascaded reservoirs. This work presents three procedures to combine operating zones of units in a hydropower plant into the plant-based operating zones, including an exhaustive method (M01) that enumerates all the possible combinations, a discrete method (M03) that investigates discrete values to see if they are in an operating zone, and a bound oriented method (M04) that explores new operating zones with an optimization solver. The procedures are compared with a previous one (M02) that merges the operating zones of a unit one by one in order. The experiments of the methods in 11 case studies involving a variety of hydropower plants reveal that the second method (M02) should always be recommended due to its strength, which is even more prominent than any other methods in dealing with large-scale problems, and errors occur when using interpolation to estimate the plant-based operating zones at a water head between two sampling water heads. |
| first_indexed | 2024-03-11T09:46:23Z |
| format | Article |
| id | doaj.art-c73f6462af4a4d1ea8d971aa77af8508 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T09:46:23Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
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| series | Energies |
| spelling | doaj.art-c73f6462af4a4d1ea8d971aa77af85082023-11-16T16:37:27ZengMDPI AGEnergies1996-10732023-02-01163143510.3390/en16031435Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating ZonesYang Wu0Wang Xia1Jinwen Wang2Shuangquan Liu3Binbin Zhou4Zhenyu Zhao5Cheng Chen6Yunnan Power Grid Co., Ltd., 73# Tuodong Road, Kunming 650011, ChinaSchool of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaInstitute of Water Resources and Hydropower, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaYunnan Power Grid Co., Ltd., 73# Tuodong Road, Kunming 650011, ChinaYunnan Power Grid Co., Ltd., 73# Tuodong Road, Kunming 650011, ChinaYunnan Power Grid Co., Ltd., 73# Tuodong Road, Kunming 650011, ChinaSchool of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaThe hydropower unit commitment (HUC) is often indirectly considered by combining individual units in a hydropower plant into a plant-based generator to alleviate the dimensional difficulty in short-term hydropower scheduling of cascaded reservoirs. This work presents three procedures to combine operating zones of units in a hydropower plant into the plant-based operating zones, including an exhaustive method (M01) that enumerates all the possible combinations, a discrete method (M03) that investigates discrete values to see if they are in an operating zone, and a bound oriented method (M04) that explores new operating zones with an optimization solver. The procedures are compared with a previous one (M02) that merges the operating zones of a unit one by one in order. The experiments of the methods in 11 case studies involving a variety of hydropower plants reveal that the second method (M02) should always be recommended due to its strength, which is even more prominent than any other methods in dealing with large-scale problems, and errors occur when using interpolation to estimate the plant-based operating zones at a water head between two sampling water heads.https://www.mdpi.com/1996-1073/16/3/1435HUCMILPunit-based operating zoneplant-based operating zone |
| spellingShingle | Yang Wu Wang Xia Jinwen Wang Shuangquan Liu Binbin Zhou Zhenyu Zhao Cheng Chen Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating Zones Energies HUC MILP unit-based operating zone plant-based operating zone |
| title | Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating Zones |
| title_full | Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating Zones |
| title_fullStr | Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating Zones |
| title_full_unstemmed | Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating Zones |
| title_short | Comparison of Procedures to Combine Operating Zones of Multiple Units into Plant-Based Operating Zones |
| title_sort | comparison of procedures to combine operating zones of multiple units into plant based operating zones |
| topic | HUC MILP unit-based operating zone plant-based operating zone |
| url | https://www.mdpi.com/1996-1073/16/3/1435 |
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