LAPSE:2020.0116
Published Article
LAPSE:2020.0116
Comparative Study of Electric Energy Storages and Thermal Energy Auxiliaries for Improving Wind Power Integration in the Cogeneration System
Yanjuan Yu, Hongkun Chen, Lei Chen
January 23, 2020
In regards to the cogeneration system in Northern China, mainly supported by combined heat and power (CHP) plants, it usually offers limited operation flexibility due to the joint production of electric and thermal power. For that large-scale wind farms included in the cogeneration system, a large amount of wind energy may have to be wasted. To solve this issue, the utilization of the electric energy storages and the thermal energy auxiliaries are recommended, including pumped hydro storage (PHS), compressed air energy storage (CAES), hydrogen-based energy storage (HES), heat storage (HS), electric boilers (EB), and heat pumps (HP). This paper proposes a general evaluation method to compare the performance of these six different approaches for promoting wind power integration. In consideration of saving coal consumption, reducing CO₂ emissions, and increasing investment cost, the comprehensive benefit is defined as the evaluation index. Specifically, a wind-thermal conflicting expression (WTCE) is put forward to simplify the formulation of the comprehensive benefit. Further, according to the cogeneration system of the West Inner Mongolia (WIM) power grid, a test system is modelled to perform the comparison of the six different approaches. The results show that introducing the electric energy storages and the thermal energy auxiliaries can both contribute to facilitating wind power integration, and the HP can provide the best comprehensive benefit.
Keywords
cogeneration system, comprehensive comparison, electric energy storage, thermal energy auxiliary, wind power integration
Suggested Citation
Yu Y, Chen H, Chen L. Comparative Study of Electric Energy Storages and Thermal Energy Auxiliaries for Improving Wind Power Integration in the Cogeneration System. (2020). LAPSE:2020.0116
Author Affiliations
Yu Y: School of Electrical Engineering, Wuhan University, Wuhan 430072, China [ORCID]
Chen H: School of Electrical Engineering, Wuhan University, Wuhan 430072, China
Chen L: School of Electrical Engineering, Wuhan University, Wuhan 430072, China [ORCID]
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Journal Name
Energies
Volume
11
Issue
2
Article Number
E263
Year
2018
Publication Date
2018-01-23
Published Version
ISSN
1996-1073
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PII: en11020263, Publication Type: Journal Article
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LAPSE:2020.0116
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doi:10.3390/en11020263
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Jan 23, 2020
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Calvin Tsay
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