RESEARCH ON INFLUENCE OF SAMPLING INTERVAL ON POWER PERFORMANCE ASSESSMENT OF TIDAL ENERGY CONVERTERS

Xia Hainan; Wang Xiangnan; Jia Ning; Guo Yi; Chen Qiang; Zhang Limin

doi:10.19912/j.0254-0096.tynxb.2025-0063

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (5) : 444-449. DOI: 10.19912/j.0254-0096.tynxb.2025-0063

RESEARCH ON INFLUENCE OF SAMPLING INTERVAL ON POWER PERFORMANCE ASSESSMENT OF TIDAL ENERGY CONVERTERS

Xia Hainan^1,2, Wang Xiangnan^1,2, Jia Ning^1,2, Guo Yi^1,2, Chen Qiang³, Zhang Limin⁴

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Abstract

This paper uses mathematical methods such as the refined division method of tidal current velocity interval and the comparative analysis method to analyze the differences between the evaluation results of tidal current energy resources in the test area caused by the tidal current sampling time interval, and studies the impact of the tidal current sampling time interval on the output power, conversion efficiency, annual power generation and other indicators of tidal energy converters. The results show that when the tidal current sampling time interval is 5 min or 10 min, there is no significant difference in the distribution frequency of tidal current velocity in the test area, but with the continuous increase of tidal current sampling time interval, the obtained field test data can't accurately characterize the distribution of tidal current velocity in the test area; Using the field test data with the power flow sampling interval of 5 min or 10 min, there is no difference in the evaluation of the cut in velocity, maximum and minimum output power, and maximum conversion efficiency of the tested tidal energy converter. The difference between the minimum conversion efficiency and the annual power generation of the tested tidal energy converter is also small, with the difference of 0.6% and 0.26% respectively.

Key words

tidal current energy / tidal energy converter / sampling interval / field testing / power characteristics / performance assessment

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Xia Hainan, Wang Xiangnan, Jia Ning, Guo Yi, Chen Qiang, Zhang Limin. RESEARCH ON INFLUENCE OF SAMPLING INTERVAL ON POWER PERFORMANCE ASSESSMENT OF TIDAL ENERGY CONVERTERS[J]. Acta Energiae Solaris Sinica. 2026, 47(5): 444-449 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0063

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