初级分段连续布置垂动PMLSM运行特性研究  

Operation characteristics of vertical hoisting system about primary section continuous layout PMLSM

作　　者：朱军[1] 李香君[1] 吴宇航[1] 王栋[1] 

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《机电工程》2016年第7期867-872,共6页Journal of Mechanical & Electrical Engineering

基　　金：中国煤炭工业协会科学技术研究项目(MTKJJ2012-376);河南省高校基本科研业务费专项资金资助项目(NSFRF140115);河南省教育厅科学技术重点研究项目(12A4700);河南理工大学博士基金资助项目(B2011-104)

摘　　要：针对初级分段连续布置永磁直线同步电机(PMLSM)垂直提升系统段间过渡会对PMLSM整体性能产生不利影响的问题,利用有限元分析法研究初级分段连续布置垂动PMLSM运行特性,建立了符合现有样机的垂动PMLSM独立单元电机(16P15S)和初级分段连续布置PMLSM二维有限元模型,确定了PMLSM单元电机的参数以及电源在不同频率(6Hz、14Hz、25Hz)时的功角特性、功角电流特性,分析了单元电机在连续布置时同功角、不同段间间隙(0、0.5mm、1.5mm)时的推力波动情况及反电势状况。研究结果表明:PMLSM低频运行时,电枢电阻作用与频率成反比,易引起失步;PMLSM单元电机轻载时电枢电流出现拐点,拐点两侧负载变化均使电枢电流增加,正常工作域时,电流较小,功率因数和效率较高。Aiming at the period of transition will bring an adverse effect to the overall performance about the primary section continuous layout permanent magnet linear synchronous motor（ PSCL-PMLSM） of vertical lift system,the working characteristics of PSCL-PMLSM was studied by using Finite element method,the independent unit machine and PSCL-PMLSM 2D FEM was established in accordance to the existing prototype,both parameters of PMLSM unit machine and characteristics of power-angle,angle-current were determined at different power frequencies（ 6 Hz,14 Hz,25 Hz）,the thrust ripple and back EMF were analyzed at the same power-angle between different sections gap（ 0mm,0. 5 mm and 1. 5 mm）. The results indicate that： PMLSM run in low frequency,the armature resistance is inverse proportional to the frequency,so it＇s easy to step out. The unit machine of PMLSM in light load,the armature current appears inflection point,the armature current increase on both sides of the inflection point,so in normal operation area,the current is low,the power factor and efficiency are high.

关 键 词：垂直运行 初级分段连续布置 PMLSM 单元电机 功角特性 推力波动 

分 类 号：TH39[机械工程—机械制造及自动化] TM30[电气工程—电机]