Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations
With the increasing contribution of wind power plants, the reliability and security of modern power systems have become a huge challenge due to the uncertainty and intermittency of wind energy sources. In this paper, a hybrid energy storage system (HESS) consisting of battery and supercapacitor is b...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-11-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/9/12/991 |
| _version_ | 1811306971890974720 |
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| author | Jingyu Liu Lei Zhang |
| author_facet | Jingyu Liu Lei Zhang |
| author_sort | Jingyu Liu |
| collection | DOAJ |
| description | With the increasing contribution of wind power plants, the reliability and security of modern power systems have become a huge challenge due to the uncertainty and intermittency of wind energy sources. In this paper, a hybrid energy storage system (HESS) consisting of battery and supercapacitor is built to smooth the power fluctuations of wind power. A power allocation strategy is proposed to give full play to the respective advantages of the two energy storage components. In the proposed strategy, the low-frequency and high-frequency components of wind power fluctuations are absorbed by battery groups and supercapacitor groups, respectively. By inhibiting the low-frequency components of supercapacitor current, the times of charging-discharging of battery groups can be significantly reduced. A DC/AC converter is applied to achieve the power exchange between the HESS and the grid. Adjustment rules for regulating state-of-charge (SOC) of energy storage elements are designed to avoid overcharge and deep discharge considering the safety and the high efficiency of the energy storage elements. Experimental results on the test platform verify the effectiveness of the proposed power allocation strategy in DC/AC converter and battery SOC adjustment rules for regulating SOC levels. |
| first_indexed | 2024-04-13T08:55:16Z |
| format | Article |
| id | doaj.art-542a4dfdcf0943e9a7b7029d701d7580 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T08:55:16Z |
| publishDate | 2016-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-542a4dfdcf0943e9a7b7029d701d75802022-12-22T02:53:18ZengMDPI AGEnergies1996-10732016-11-0191299110.3390/en9120991en9120991Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power FluctuationsJingyu Liu0Lei Zhang1Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education, School of Electrical Engineering, Shandong University, 17923 Jingshi Road, Jinan 250061, China94710 of The Chinese People’s Liberation Army, No. 1 Airport Branch Road, Wuxi 214000, ChinaWith the increasing contribution of wind power plants, the reliability and security of modern power systems have become a huge challenge due to the uncertainty and intermittency of wind energy sources. In this paper, a hybrid energy storage system (HESS) consisting of battery and supercapacitor is built to smooth the power fluctuations of wind power. A power allocation strategy is proposed to give full play to the respective advantages of the two energy storage components. In the proposed strategy, the low-frequency and high-frequency components of wind power fluctuations are absorbed by battery groups and supercapacitor groups, respectively. By inhibiting the low-frequency components of supercapacitor current, the times of charging-discharging of battery groups can be significantly reduced. A DC/AC converter is applied to achieve the power exchange between the HESS and the grid. Adjustment rules for regulating state-of-charge (SOC) of energy storage elements are designed to avoid overcharge and deep discharge considering the safety and the high efficiency of the energy storage elements. Experimental results on the test platform verify the effectiveness of the proposed power allocation strategy in DC/AC converter and battery SOC adjustment rules for regulating SOC levels.http://www.mdpi.com/1996-1073/9/12/991wind powerbatterysupercapacitorstate-of-charge (SOC)power allocationhybrid energy storage system (HESS)wind power regulation system |
| spellingShingle | Jingyu Liu Lei Zhang Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations Energies wind power battery supercapacitor state-of-charge (SOC) power allocation hybrid energy storage system (HESS) wind power regulation system |
| title | Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations |
| title_full | Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations |
| title_fullStr | Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations |
| title_full_unstemmed | Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations |
| title_short | Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations |
| title_sort | strategy design of hybrid energy storage system for smoothing wind power fluctuations |
| topic | wind power battery supercapacitor state-of-charge (SOC) power allocation hybrid energy storage system (HESS) wind power regulation system |
| url | http://www.mdpi.com/1996-1073/9/12/991 |
| work_keys_str_mv | AT jingyuliu strategydesignofhybridenergystoragesystemforsmoothingwindpowerfluctuations AT leizhang strategydesignofhybridenergystoragesystemforsmoothingwindpowerfluctuations |