摘要
为研制用于驱动大流量伺服比例阀先导级的高响应电-机械转换器,提出采用异型永久磁铁励磁的动圈式直线电机(moving coil linear motor,MCLA)结构方案,给出设计准则,采用有限元计算方法分析磁路特征,计算结果表明,采用异型永久磁铁较规则形状可提高驱动力7%以上。在此基础上,设计了驱动大流量伺服比例阀先导级的动圈式直线电机,并制造出样机,建立了测试系统,对样机的动静态特性进行试验测试,试验结果验证了设计计算的正确性,试验结果表明所研制的样机性能可以满足高响应大流量伺服比例阀先导级驱动要求。
In order to develop the fast response electro-mechanical transformer used to drive the pilot stage of large flow rate servo proportional valve, a novel structure of electro-mechanical transformer with shaped permanent magnet was proposed and its design principles were indicated. Magnetic circuit characteristics of the dedicated moving coil linear motor （MCLA） were studied with finite element method. The analysis indicated that MCLA＇s driving force can be increased more than 7% by using shaped permanent magnet. A MCLA used to drive the pilot stage of large flow rate servo proportional valve was designed and the prototype was developed. The test system for small linear motor was built and the prototype was tested. The test results show that the performance of the prototype can meet the pilot driving requirement of fast response large flow rate servo proportional valve.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2010年第9期92-96,共5页
Proceedings of the CSEE
基金
国家自然科学基金项目(50575156)
山西省自然科学基金项目(2008011053)~~
关键词
直线电机
电-机械转换器
动圈式电磁铁
伺服比例阀
linear motor
electro-mechanical transformer moving coil solenoid
servo proportional valve
