摘要
自耦是电力变压器的一种特殊运行方式,通过输入和输出共用一部分线圈来节约材料,满足变压需求下的高效率能量传输。在液压传动领域,缸式液压变压器也可采用"自耦"运行方式,通过输入和输出共用部分活塞面积,拓宽变压比范围,使液压势能传递更高效。在液压领域中引入自耦概念,实现用于液压势能传递的缸式液压变压器装置的自耦运行方式。经理论分析、仿真计算可知,与传统缸式液压变压器的普通运行方式相比,自耦运行方式的加入增加了变压比数量,在满足固定变压比要求下,所需的活塞面积更小,以节约成本、节省空间;并且在多级液压缸联用时,自耦运行方式的加入实现了更多不同比例的液压势能转换,大幅提高活塞面积的利用率。
Auto-coupling is a special operation mode of power transformers.It saves materials by sharing a part of coils with input and output to meet high-efficiency energy transmission under variable voltage demand.In the field of hydraulic transmission,the cylinder-type hydraulic transformer can also adopt the "auto-coupling" operation mode,which expands the range of the transformation ratio through the input and output sharing part of the piston area,so that the hydraulic potential energy transmission is more efficient.The concept of auto-coupling in the field of hydraulics was introduced.The auto-coupling operation mode of the cylinder-type hydraulic transformer device for hydraulic potential energy transmission was realized.According to theoretical analysis and simulation calculation,the addition of the auto-coupling mode increases the number of transformation ratios compared with the normal operation mode.Under the requirement of fixed transformation ratio,the design requires a smaller piston area to save cost and space.And when the multi-stage hydraulic cylinder is used in combination,the addition of the auto-coupling operation mode realizes more hydraulic potential energy conversion with different proportions,the utilization of the piston area is improved greatly.
作者
钱政旭
姜彤
韩宗耀
尤嘉钰
QIAN Zhengxu;JIANG Tong;HAN Zongyao;YOU Jiayu(School of Electrical&Electronic Engineering,North China Electric Power University,Beijing 102206,China)
出处
《机床与液压》
北大核心
2020年第10期22-27,共6页
Machine Tool & Hydraulics
基金
国家电网公司总部科技项目(SGHE0000KXJS1700086)。
关键词
缸式液压变压器
自耦运行
变压比
Cylinder hydraulic transformer
Auto-coupling operation
Transformation ratio
