储能复合材料飞轮力学研究进展

被引:7
作者
王超 [1 ]
戴兴建 [2 ]
汪勇 [2 ]
李玺 [1 ]
钟国彬 [1 ]
机构
[1] 广东电网有限责任公司电力科学研究院
[2] 清华大学工程物理系
关键词
飞轮储能; 复合材料; 结构设计; 力学研究;
D O I
暂无
中图分类号
TB33 [复合材料]; TK02 [蓄能技术];
学科分类号
080505 [复合材料]; 080707 [能源环境工程];
摘要
简要分析了飞轮储能的特点、应用领域及其关键技术,其中复合材料飞轮结构力学研究是提高飞轮能量密度的基础。在研究中,一般利用分析力学和有限元方法获得复合材料飞轮的应力、应变信息,运用强度准则判断其极限转速,确定工作转速下的应力状态。采用多环过盈装配、混杂纤维材料组合结构、纤维多向排布、缠绕以及机织叠层新结构设计,充分利用复合材料的可设计性来适应旋转结构的应力特征,从而提高储能密度。复合材料飞轮的储能量从早期的0.3~5 kW·h,发展到当今的30~130 kW·h,储能密度达到30~100 W·h/kg。合金钢飞轮材料费用估计700$/kW·h,飞轮复合材料费用估计为3000$/k W·h,复合材料飞轮的性价比离大规模储能应用还有相当的距离。
引用
收藏
页码:1076 / 1083
页数:8
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