DESIGN AND TEST OF MAGNETOELECTRIC GENERATOR OF WAVE ENERGY CONVERTOR

Zhang Yuxiang; Chen Renwen; Wang Liping; Zhou Hongbiao; Shen Qian

doi:10.19912/j.0254-0096.tynxb.2022-0196

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (6) : 24-29. DOI: 10.19912/j.0254-0096.tynxb.2022-0196

DESIGN AND TEST OF MAGNETOELECTRIC GENERATOR OF WAVE ENERGY CONVERTOR

Zhang Yuxiang¹, Chen Renwen², Wang Liping², Zhou Hongbiao¹, Shen Qian¹

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Abstract

An magnetoelectric generator combining Halbach permanent magnet array with a coreless structure is proposed for the multi-buoy Wave Energy Convertor （WEC）, enabling direct conversion of wave energy into electrical energy. An improved equivalent magnetic circuit model is proposed for this magnetoelectric generator, and the structure of the magnetoelectric generator is optimized according to the maximum damping factor. The calculation results of the improved equivalent magnetic circuit model are compared with the results obtained through simulation software to verify the validity of the improved equivalent magnetic circuit model. After optimizing the structure of the electromagnetic transducer under laboratory conditions, a prototype of the magnetoelectric transducer was built and an experimental test rig was set up to test the performance of the prototype. The test results show that the voltage of the prototype is approximately 75% of the theoretical value. The peak voltages of the two windings at different positions of the prototype are 32.33 V and 27.98 V respectively at an amplitude of 20 mm and a frequency of 6 Hz, and an RMS value of 15.00 V and 16.50 V respectively. Its energy harvesting power is 49.72 W.

Key words

wave power / direct energy conversion / magnetoelectric generators / Halbach array / coreless

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Zhang Yuxiang, Chen Renwen, Wang Liping, Zhou Hongbiao, Shen Qian. DESIGN AND TEST OF MAGNETOELECTRIC GENERATOR OF WAVE ENERGY CONVERTOR[J]. Acta Energiae Solaris Sinica. 2023, 44(6): 24-29 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0196

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