Energy harvesting study of series direct driven floatwave energy converter

作者：Xiao, Xiaolong; Xiao, Longfei^*; Yang, Lijun

来源：Acta Energiae Solaris Sinica, 2018, 39(2): 398-405.

• Energy converters
• Floater
• Fourth order Runge-Kutta methods
• Linear generators
• Parameter selection
• Power capture
• Spectrum bandwidth
• Wave energy converters

The oscillating float wave energy converter was studied to explore energy harvesting status of linear generators with different series number in regular waves. Floater and motor coupling motion equation was set up based on potential flow theory and considering heaving motion, the fourth-order Runge-Kutta method was used to solve the equation numerically to get energy harvesting width ratio, and study the influence of energy output system mass ratio and spring stiffness coefficient, also analyze the differences of energy harvesting in the case of series linear generators with different numbers. The results showed that with proper parameter selection, tandem devices can capture more energy at lower wave frequencies than single-generator devices, meanwhile increasing the energy-absorbing spectrum bandwidth.

• 出版日期2018
• 单位上海交通大学