涡旋式空气压缩机轴向力电磁动态平衡控制研究  

Electromagnetic dynamic balance control of axial force of scroll air compressor

作　　者：蔡炯炯 祝亮 刘雷 施彦涛 瞿晓[1] CAI Jiong-jiong;ZHU Liang;LIU Lei;SHI Yan-tao;QU Xiao(School of Automation and Electrical Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China;Hangzhou Scroll Technology Co.,Ltd.,Hangzhou 310053,China)

机构地区：[1]浙江科技学院自动化与电气工程学院,浙江杭州310023 [2]思科涡旋科技(杭州)有限公司,浙江杭州310053

出　　处：《机电工程》2021年第4期469-473,共5页Journal of Mechanical & Electrical Engineering

基　　金：浙江省自然科学基金资助项目(LY17E070002,LY21E070002)。

摘　　要：针对涡旋式空气压缩机在变工况条件下,电磁力动态跟踪轴向气体分离力效果不佳的问题,提出了一种全转速范围自适应参数电磁动态跟踪方法。在离线时提前建立了一个最优提前步数与速度或者转速频率相关的数据库;在线时通过旋转变压器实时反馈转速信号,自适应选取了数据库中与转速相对应的最优提前量,进而对电磁力跟踪滞后问题进行了提前补偿,实现了快速、动态平衡轴向气体力;搭建电磁控制模拟实验平台进行了实验测试。实验及研究结果表明:该方法能有效地平衡涡旋式空气压缩机不同转速工况下的轴向气体力,可以为涡旋机(特别是高排气压力的涡旋机)轴向气体分离力动态平衡控制提供有益的参考。Aiming at the problem that the electromagnetic force dynamically tracks the axial gas separation force in the scroll machine under variable working conditions,a self-adaptive parameter electromagnetic dynamic tracking method with full speed range was proposed.When offline,a database of optimal advance steps related to speed or frequency was established in advance;When online,the rotational speed signal of the rotary transformer was fed back in real-time,and the optimal advance quantity corresponding to the rotational speed in the database was adaptively selected,and then the electromagnetic force tracking hysteresis was further compensated in advance,the fast and dynamic balance of axial gas separation force was realized.An electromagnetic control simulation experiment platform was built for experimental testing.The experimental results show that the method can effectively balance the axial gas separation force of the scroll machine under different rotating speed conditions.It provides a useful reference for the dynamic balance control of the axial gas separation force in the scroll machine,especially the high-pressure scroll machine.

关 键 词：涡旋式空气压缩机 轴向力 电磁平衡控制 全转速范围 自适应 

分 类 号：TH455[机械工程—机械制造及自动化]