APP下载

基于蓄能器的液压传动系统研究

2019-09-10华军李德堂陈丽雪申宏群赖文斌

海洋开发与管理 2019年12期

华军 李德堂 陈丽雪 申宏群 赖文斌

摘要:为充分利用海洋可再生能源,文章针对波浪能具有不稳定和不连续的特点,设计采用带有蓄能器的液压传动系统,保障波浪能发电装置稳定地输出电能;利用AMESim对液压系统进行仿真,分别研究蓄能器对电能输出的影响以及蓄能器的释放压力对永磁发电机的影响,并搭建应用蓄能器的摇臂式波能发电平台进行实验验证。仿真与实验结果表明:具有蓄能器的液压传动系统电能输出稳定,且合适的释放压力可优化液压系统和发电机的输出,可为实海况应用提供理论支持。

关键词:蓄能器;液压传动;波浪能;永磁发电机;释放压力

中图分类号:TK02;P7432;TM313文献标志码:A文章编号:1005-9857(2019)12-0080-05

Hydraulic Transmission System Based on Accumulator

HUA Jun,LI Detang,CHEN Lixue,SHEN Hongqun,LAI Wenbin

(Zhejiang Ocean University,Zhoushan 316022,China)

Abstract: In order to make full use of the marine renewable energy and for the unstable and discontinuous characteristic of wave energy,the design adopted the hydraulic transmission system with accumulator to make the electric energy output of the wave generator platform stable.In this paper,AMESim was used to simulate the hydraulic system,the effect of the accumulator to electricity output and size of permanent magnet generator system in the accumulator to relieve pressure were studied respectively.After that,the rocker arm wave energy generation platform with accumulator was built for experimental verification.The results of simulation and experiment showed that the power output of hydraulic drive system with accumulator was stable and the output of hydraulic system and generator could be optimized with appropriate pressure,which could provide theoretical support for the real sea application.

Key words:Accumulator,Hydraulic drive,Wave energy,Permanent magnet generator,Release pressure

0引言

21世紀以来,波浪能发电技术逐渐成为可再生能源技术领域的热点,各种形式的波浪能发电装置不断涌现[1-3]。日本科学家最初设计并制造振荡浮子式波浪能发电装置,利用浮子在波浪作用下的上下振荡,通过机械传动系统带动发电机发电[4]。目前根据波浪能发电装置的结构形式,可将其分为振荡水柱式、越浪式、阀式和浮力摆式等[5]。早期的波浪能发电系统大多运用机械齿轮之间的咬合转动,带动发电机转子转动发电,而机械传动的过程存在齿轮箱易损坏、水下维修困难和传动效率低等缺点[6]。根据众多科学家的研究成果,液压动力传动系统具有传动平稳、调速方便和功率体积比大等优良特性[7-9]。

本研究提出基于蓄能……

登录APP查看全文