摘要
基于动铁式电-机械转换器的能量转换关系分析,提出一种线性力马达低功耗设计方案,并通过该方案研制了一种低功耗耐高压双向线性力马达。基于建立的数学模型,利用有限元方法对影响线性力马达行程力特性的主要结构参数进行了仿真,表明在同等输出能力下,减小轴向非工作气隙的同时引入径向工作气隙,可提高线性力马达的能量转换效率,使稳态功耗降低36%.实验与仿真结果吻合,在行程范围±1 mm内非线性误差小于1.5%,最大输出力为±100 N时稳态功耗仅为7 W.
Based on analysis of energy conversion relation of moving-iron type electromechanical converter, a method of low-power consumption design for linear force motor was presented, by which a low-power consumption bidireetional linear force motor used for high hydraulic pressure was developed. Based on the mathematic model, the effects of main structural parameters on the force-versus- stroke characteristics of linear force motor were simulated by the finite element method. The simulated results demonstrate that by introducing radial operating airgaps while reducing axial non-operating airgaps, energy conversion efficiency can be improved and steady power consumption can be reduce by 36% under equal output capability. The simulated results agree well with the experimental results, which are that non-linear error of the prototype linear force motor is less than 1.5 % within a stroke of ± 1 mm, and its steady state power consumption is only 7 W at the maximum force output of ± 100 N.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2009年第6期803-807,共5页
Acta Armamentarii
关键词
自动控制技术
力马达
线性
低功耗
气隙
能量转换效率
automatic control technology
force motor
linear
low-power
airgaps
energy conversion efficiency
