基于CPLD的大功率高精度伺服系统位置信息实时采集系统设计与实现  

Location Information Acquisition in Real Time Scheme's Design and Application in High Response and High Precision Servo Based on CPLD

作　　者：虞志源 鲁文其[1,2] 徐讯 袁嫣红[1] 张建亚[1] 胡东轩[1] 

机构地区：[1]浙江理工大学,浙江杭州310018 [2]浙江大学,浙江杭州310018 [3]浙江卧龙控股集团有限公司,浙江杭州310000

出　　处：《电机与控制应用》2015年第5期11-16,共6页Electric machines & control application

基　　金：国家自然科学基金(No.11347125;51407156;51307151);浙江省自然科学基金项目(No.LY14E070009;LY13E070005);浙江省科技厅钱江人才项目(No.2013R10064);中国博士后科学基金(No.2014M551735);浙江省博士后科学基金(No.BSH1402065)

摘　　要：阐述了旋转变压器的工作原理,设计了两套位置信息采集方案。一种方案在CPLD、DSP、解码芯片之间采用独立总线的方式连接,实时地更新位置信息;另一种方案则是在CPLD、DSP、解码芯片之间采用共用总线的方式,只在需要时读取位置信息。给出了两种方案的硬件平台、设计思路和软件流程图,在原理上对其进行了相应的分析,并基于此进行了位置信息读取的试验测试。根据试验测试结果得知,两种方案都能准确读取位置信息,精度较高,较适合大功率高精度驱动的场合应用,且共用总线方案相比独立总线方案响应速度更快。Two sets of position detection scheme were designed. One connects CPLD, DSP and decoding chip with the method of independent bus. It could real-time update location information. The other connects CPLD, DSP and decoding chip with the method of shared bus. It only read location information when it need. Both schemes’ hardware platform, design thought, software flow diagram were proposed. Its principle was analyzed. The position information was detected based on these two schemes. According to these experiments, these two solutions all could read location information accurately with high precision, and be used in high power driving situations. Comparing with independent bus solution, Reuse bus solution had the faster response speed.

关 键 词：交流伺服系统 旋转变压器 位置检测 大功率 高精度 

分 类 号：TM921.541[电气工程—电力电子与电力传动]