摘要
针对基于蓄能器的波浪能发电系统中液压能到电能转换环节的效率问题,设计一种蓄能与电力系统的物理试验模型,该模型将波浪不规则往复运动能量收集存储,通过对蓄能器的释放进行控制,将波浪能转换成稳定、连续的旋转机械能,转化为电能输出。通过试验研究的方式,对基于蓄能器的液压蓄能式发电系统的发电特性、蓄能器工作特性、系统压力分布特性展开试验研究,发现降低蓄能器的初始压力、提高发电系统的释放压力可提高发电效率;蓄能器出现压力不能完全释放的现象,并且充气压力、负载电阻越大现象越明显;提出蓄能器充气压力、释放压力的选择方法,得到提高蓄能器工作效率的有效手段,探讨蓄能发电系统的控制方案,为基于蓄能器的发电系统的资源配置、控制策略的设计提供参考依据,具有一定的应用价值。
In order to improve the conversion efficiency of the wave power generation system with energy accumulator,an energy storage power generation system model,which can collect and store the energy of irregular wave reciprocating motion is designed.By controlling the release of the accumulator,the wave energy is converted into stable and continuous rotating mechanical energy which is finally converted into electricity output.In this paper,the power generation characteristics,the accumulator working characteristics and the pressure distribution characteristics of the hydraulic energy storage power generation system based on the accumulator are studied through the way of experimental research.It is found that reducing the initial pressure of the accumulator and increasing the release pressure of the power generation system can improve the power generation efficiency.The energy accumulator may occur the phenomenon of pressure not being released completely,and the larger the charging gas pressure and load resistance are,the more obvious the phenomenon is.The selection method of accumulator charging gas pressure and releasing pressure is put forward,the effective means of improving accumulator working efficiency is obtained,and the control scheme of accumulator power generation system is discussed,which provide references for resource allocation and control strategy design of power generation system based on accumulator.
作者
宋文杰
史宏达
刘鹏
蒋庆林
于慧彬
Song Wenjie;Shi Hongda;Liu Peng;Jiang Qinglin;Yu Huibin(College of Engineering,Ocean University of China,Key Laboratory of Ocean Engineering of Shandong Prorince,Ocean University of China,Qingdao 266100,China;Instiue of Oceanographic Instrumentation,Qilu University of Technology(Shandong Academy of Sciences),Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology,National Engineering and Technological Research Center of Marine Monitoring Equipment,Qingdao 266100,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2020年第6期164-170,共7页
Acta Energiae Solaris Sinica
基金
国家海洋局海洋可再生能源资金项目(GHME2016YY02)
山东省重大科技创新工程项目(2019JZZY010902)
威海市人民政府-山东省科学院产学研协同创新基金项目(2018GC02)
山东省科学院院地产学研协同创新基金(YDLH41903CZ)。
关键词
波浪能
波浪能转换
液压传动
试验研究
蓄能器
wave power
wave energy conversion
hydraulic drive
experimental research
energy accumulator
