Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power Generation
As the steady-state frequency of an actual power system decreases from its nominal value, the composite load of the system generally responds positively to lower power consumption, and vice versa. It is believed that this load frequency damping (LFD) effect will be artificially enhanced, i.e., sensi...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | Journal of Modern Power Systems and Clean Energy |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9878231/ |
| _version_ | 1797770945649180672 |
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| author | Rui Chen Deping Ke Yuanzhang Sun C. Y. Chung Haotian Wu Siyang Liao Jian Xu Congying Wei |
| author_facet | Rui Chen Deping Ke Yuanzhang Sun C. Y. Chung Haotian Wu Siyang Liao Jian Xu Congying Wei |
| author_sort | Rui Chen |
| collection | DOAJ |
| description | As the steady-state frequency of an actual power system decreases from its nominal value, the composite load of the system generally responds positively to lower power consumption, and vice versa. It is believed that this load frequency damping (LFD) effect will be artificially enhanced, i.e., sensitivities of loads with respect to operational frequency will increase, in future power systems. Thus, for wind-integrated power systems, this paper proposes a frequency-dependent chance constrained unit commitment (FDCCUC) model that employs the operational frequency as a dispatching variable so that the LFD effect-based load power can act as a supplemental reserve. Because the frequency deviation is safely restricted, this low-cost reserve can be sufficiently exerted to upgrade the wind power accommodation capability of a power system that is normally confined by an inadequate reserve to cope with uncertain wind power forecasting error. Moreover, when the FDCCUC model is applied to a bulk AC/DC hybrid power system consisting of several independently operated regional AC grids interconnected by DC tie-lines, a hierarchically implemented searching algorithm is proposed to protect private scheduling information of the regional AC grids. Simulations on a 2-area 6-bus system and a 3-area 354-bus system verify the effectiveness of the FDCCUC model and hierarchical searching algorithm. |
| first_indexed | 2024-03-12T21:29:23Z |
| format | Article |
| id | doaj.art-3c2a0b2162874c3eaaad7584b841876e |
| institution | Directory Open Access Journal |
| issn | 2196-5420 |
| language | English |
| last_indexed | 2024-03-12T21:29:23Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | Journal of Modern Power Systems and Clean Energy |
| spelling | doaj.art-3c2a0b2162874c3eaaad7584b841876e2023-07-27T23:00:25ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202023-01-011141053106410.35833/MPCE.2022.0001389878231Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power GenerationRui Chen0Deping Ke1Yuanzhang Sun2C. Y. Chung3Haotian Wu4Siyang Liao5Jian Xu6Congying Wei7Wuhan University,School of Electrical Engineering and Automation,Wuhan,China,430072Wuhan University,School of Electrical Engineering and Automation,Wuhan,China,430072Wuhan University,School of Electrical Engineering and Automation,Wuhan,China,430072University of Saskatchewan,Department of Electrical and Computer Engineering,Saskatoon,SK,Canada,S7N5A9Wuhan University,School of Electrical Engineering and Automation,Wuhan,China,430072Wuhan University,School of Electrical Engineering and Automation,Wuhan,China,430072Wuhan University,School of Electrical Engineering and Automation,Wuhan,China,430072Central China Branch of State Grid Corporation of China,Wuhan,China,430000As the steady-state frequency of an actual power system decreases from its nominal value, the composite load of the system generally responds positively to lower power consumption, and vice versa. It is believed that this load frequency damping (LFD) effect will be artificially enhanced, i.e., sensitivities of loads with respect to operational frequency will increase, in future power systems. Thus, for wind-integrated power systems, this paper proposes a frequency-dependent chance constrained unit commitment (FDCCUC) model that employs the operational frequency as a dispatching variable so that the LFD effect-based load power can act as a supplemental reserve. Because the frequency deviation is safely restricted, this low-cost reserve can be sufficiently exerted to upgrade the wind power accommodation capability of a power system that is normally confined by an inadequate reserve to cope with uncertain wind power forecasting error. Moreover, when the FDCCUC model is applied to a bulk AC/DC hybrid power system consisting of several independently operated regional AC grids interconnected by DC tie-lines, a hierarchically implemented searching algorithm is proposed to protect private scheduling information of the regional AC grids. Simulations on a 2-area 6-bus system and a 3-area 354-bus system verify the effectiveness of the FDCCUC model and hierarchical searching algorithm.https://ieeexplore.ieee.org/document/9878231/Unit commitmentAC/DC hybrid power systemload frequency dampingreservewind power |
| spellingShingle | Rui Chen Deping Ke Yuanzhang Sun C. Y. Chung Haotian Wu Siyang Liao Jian Xu Congying Wei Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power Generation Journal of Modern Power Systems and Clean Energy Unit commitment AC/DC hybrid power system load frequency damping reserve wind power |
| title | Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power Generation |
| title_full | Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power Generation |
| title_fullStr | Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power Generation |
| title_full_unstemmed | Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power Generation |
| title_short | Hierarchical Frequency-dependent Chance Constrained Unit Commitment for Bulk AC/DC Hybrid Power Systems with Wind Power Generation |
| title_sort | hierarchical frequency dependent chance constrained unit commitment for bulk ac dc hybrid power systems with wind power generation |
| topic | Unit commitment AC/DC hybrid power system load frequency damping reserve wind power |
| url | https://ieeexplore.ieee.org/document/9878231/ |
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