Soft starters are effective devices used to provide overload protection for motors from large mechanical shocks during the start-up period.However,existing soft starters require additional power supplies,sensors,and c...Soft starters are effective devices used to provide overload protection for motors from large mechanical shocks during the start-up period.However,existing soft starters require additional power supplies,sensors,and complex control elements that pose serious challenges to the integration,versatility,and operability of mechanical transmission system.Herein,we propose a newly soft starter based on the triboelectric nanogenerator(TENG)and electrorheological fluid(ERF)to realize a self-powered mechanical transmission system.Both ERF’s rheological characteristic and the baffle structure play a role in the torque of device.Driven by TENG,the soft starter with optimized baffle achieves a 715%growth in transmission torque compared to that of the device without baffle.And a smooth start is obtained with transmission speeds ranging from 0%to 100%.In application demonstration,this triboelectric soft starter(TSS)has the capacity to gain a smooth operation of the high-speed motor.In contrast,the direct start generates an overshoot,leading to a break in the conveyor belt.The TSS designed in this work with the advantages of self-powered,highly integrated,easy to operate,and low cost,provides a prospective strategy for broadening the application of TENG in mechanical transmission systems.展开更多
基金Guo,H.Y.want to acknowledge the support from the National Key Research and Development Program(No.2021YFA1201602)the Graduate Research and Innovation Foundation of Chongqing,China(No.CYB22047)+3 种基金the National Natural Science Foundation of China(NSFC)(Nos.62004017 and U21A20147)This research was also supported by the Scientific and Technology Research Program of Chongqing Municipal Education Commission(Nos.KJQN202100522 and KJQN202200514)the Natural Science Foundation of Chongqing(No.cstc2021jcyj-msxmX0746)the Dr.“Through Train”Scientific Research Program(No.CSTB2022BSXM-JCX0091).
文摘Soft starters are effective devices used to provide overload protection for motors from large mechanical shocks during the start-up period.However,existing soft starters require additional power supplies,sensors,and complex control elements that pose serious challenges to the integration,versatility,and operability of mechanical transmission system.Herein,we propose a newly soft starter based on the triboelectric nanogenerator(TENG)and electrorheological fluid(ERF)to realize a self-powered mechanical transmission system.Both ERF’s rheological characteristic and the baffle structure play a role in the torque of device.Driven by TENG,the soft starter with optimized baffle achieves a 715%growth in transmission torque compared to that of the device without baffle.And a smooth start is obtained with transmission speeds ranging from 0%to 100%.In application demonstration,this triboelectric soft starter(TSS)has the capacity to gain a smooth operation of the high-speed motor.In contrast,the direct start generates an overshoot,leading to a break in the conveyor belt.The TSS designed in this work with the advantages of self-powered,highly integrated,easy to operate,and low cost,provides a prospective strategy for broadening the application of TENG in mechanical transmission systems.
