摘要
基于马鞍形磁场波形特征解算直线电机位置的方法可为高性价比位置解算提供一种新的选择,其包含离线建数据库和实时解算2部分,实时解算中又以区间匹配为关键。分析了双马鞍形磁场值之间的关系点阵图,提出了在实时解算中利用点距来匹配、确认算法插值区间的算法思路,针对特殊点提出采用点距和变化趋势结合的方法确认插值区间。此外,还研究了数据波动和数据库信息总量对解算方法的影响。与对照样本对比,结果表明使用点距的解算方法物理意义明确,计算精度可以通过数据采集高度参数、数据库数据总量来调整优化,具有较好的研究价值和应用前景。
The method based on saddle-shaped magnetic field waveform to calculate the position of linear motor can provide a new choice for cost-effective position calculation.It includes two parts:offline database establishment and real-time calculation.In real-time calculation,interval matching is the key.The relationship between the double-saddle magnetic field values is analyzed,and the real-time algorithm of matching and determining interpolation interval by point distance is put forward,in which the interpolation interval is determined by combining point distance and change trend of special points.In addition,the influence of data fluctuation and the total amount of database information on the calculation is also studied.Compared with the results of the samples,the calculation method using point distance has clear physical meaning,and the calculation accuracy can be regulated and optimized through adjusting the height parameters of data collection and the total amount of database data,so it has a good research value and application prospect.
作者
蔡炯炯
蒋丽君
倪凯华
王子辉
张亚成
CAI Jiongjiong;JIANG Lijun;NI Kaihua;WANG Zihui;ZHANG Yacheng(School of Automation and Electrical Engineering,Zhejiang University of Science&Technology,Hangzhou 310012,China;Melbourne School of Engineering,The University of Melbourne,Melbourne,Victoria 3000,Australia)
出处
《电机与控制应用》
2020年第11期34-39,46,共7页
Electric machines & control application
基金
浙江省自然科学基金项目(LY17E070002、LQ17E070002、LY21E070002)。
关键词
永磁电机
霍尔传感器
位置检测
马鞍形磁场
permanent magnet motor
Hall sensor
position detection
saddle-shaped magnetic field
