Experimental Studies on an Impact-Based Piezoelectric Wind Energy Harvester

摘要：

　　To improve the output performance of wind energy harvesters under low speed wind,a piezoelectric wind energy harvester based on impact was proposed.The harvester consists of a cylindrical bluff body,a hinged-splitter plate,a piezoelectric composite cantilever and a fixture.By utilizing the impact between the splitter plate,which is hinged on the cylindrical blunt body,and the piezoelectric cantilever,the working wind speed of the cantilever is effectively decreased.The prototype of the wind energy harvester was assembled and measured to evaluate the performances.Experimental results showed that the initial distance between the splitter plate and the cantilever significantly affects the working wind speed and the output power of the harvester.The proof mass on the piezoelectric cantilever can increase the output power.The measured output power of the wind energy harvester is 64 μW when the wind speed is 17m/s and the resister is 200 kΩ.

关键词： Energy harvesting Wind-induced-vibration Impact Piezoelectricity

作者: Gao Jun Xia Huilu

作者单位: Key Lab of Optoelectronic Technology and Systems of Education Ministry of China, ChongqingUniversity Key Lab of Optoelectronic Technology and Systems of Education Ministry of China, ChongqingUniversity

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）