The development and utilization of marine blue energy has become the focus of current research. A drawstring triboelectric nanogenerator with modular electrodes (DS-TENG) is proposed to harvest wave energy. Motion displacement and water wave adaptability are improved by using the drawstring structure in the DS-TENG. Furthermore, the modular electrode design is applied to improve the durability and replaceability of the generation units. The rationality of the structure is verified by theoretical analysis, and performance experiments on the fundamental output, displacement and frequency, durability and application are carried out. The DS-TENG can achieve output performance of 98.03 nC, 3.63 µA, 238.50 V and 923.92 µW at 150 mm and 1.0 Hz. In addition, the performance drops by 6.11% after 110,000 cycles for DS-TENG durability. This paper will provide reference for the design of TENG that adapts to a wide range of wave heights.

海洋蓝色能源的开发利用已成为当前研究的热点。提出了一种带有模块化电极的拉绳摩擦纳米发电机（DS-TENG）来收集波浪能。DS-TENG采用拉绳结构，提高了运动位移和水波适应性。此外，采用模块化电极设计，提高了发电机组的耐用性和可更换性。通过理论分析验证了结构的合理性，并进行了基波输出、位移和频率、耐久性和使用等性能实验。DS-TENG 在 150 mm 和 1.0 Hz 下可实现 98.03 nC、3.63 µA、238.50 V 和 923.92 µW 的输出性能。此外，DS-TENG 耐久性在 110,000 次循环后性能下降 6.11%。