Analysis and Design of Permanent Magnet Synchronous Motor for Injection Molding Machine

doi:10.11985/2018.09.005

Abstract

Abstract:

In order to improve the energy efficiency of the hydraulic injection molding machine, a permanent magnet synchronous motor for the injection molding machine is designed to transform the servo system of the injection molding machine. Combined with the actual production conditions of the injection molding machine, the main dimension parameters of the permanent magnet synchronous motor used in the injection molding machine were determined, and the finite element model was built using Ansys Maxwell 2D software. The article focuses on the selection of the slot combination, analyzes and designs the rotor structure, and proposes that the cogging torque of the “1” magnet built-in permanent magnet motor can be effectively weakened by a combination of inhomogeneous air gap and pole arc coefficient optimization methods. . According to the design parameters of the prototype, the design value and the experimental value of the error is small, the motor used in injection molding machine servo system transformation, and achieve better energy-saving effect.

Key words: Permanent magnet synchronous motor, Ansys Maxwell 2D, slot-pole combination, cogging torque, injection molding machine

CLC Number:

TM32

Hu Bi,Cao Wenyao,Hu Tuxiong,Wang Wei. Analysis and Design of Permanent Magnet Synchronous Motor for Injection Molding Machine[J]. Journal of Electrical Engineering, 2018, 13(9): 26-31.

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References 9

[1]	佘匡华 . 注塑机动力系统节能方法研究[D]. 上海:上海工程技术大学, 2014.
[2]	权龙 . 泵控缸电液技术研究现状、存在问题及创新解决方案[J]. 机械工程学报, 2008,4(11):87-92.
	Quan Long . Research status, existing problems and innovative solutions of pump-controlled electrohydraulic technology[J]. Journal of Mechanical Engineering, 2008,4(11):87-92.
[3]	权龙, 王成宾 . 伺服电动机定量液压泵驱动的注塑机电液控制系统分析[J]. 液压气动与密封, 2005(4):16-20. doi: 10.1126/sciadv.aax5746 pmid: 31646178
	Quan Long, Wang Chengbin . Analysis of injection molded electro-hydraulic control system driven by quantitative hydraulic pump of servo motor[J]. Hydraulics Pneumatics & Seals, 2005(4):16-20. doi: 10.1126/sciadv.aax5746 pmid: 31646178
[4]	黄忠诚 . 注塑机用永磁同步电动机的设计及性能分析[D]. 沈阳:沈阳工业大学, 2012.
[5]	刘景辉 . 注塑机用永磁同步电动机的研究与设计[D]. 广州:广东工业大学, 2013.
[6]	赖文海, 黄开胜, 陈文敏 , 等. 基于Maxwell的整数槽永磁同步电动机分析与设计[J]. 微特电机, 2015,43(7):49-51. doi: 10.4142/jvs.2019.20.e73 pmid: 31775199
	Lai Wenhai, Huang Kaisheng, Chen Wenmin , et al. Analysis and design of maxwell-based integral slot permanent magnet synchronous motor[J]. Small & Special Electrical Machines, 2015,43(7):49-51. doi: 10.4142/jvs.2019.20.e73 pmid: 31775199
[7]	陈世坤 . 电机设计[M]. 北京: 机械工业出版社, 2000.
[8]	李隆年, 朱东起, 胡元德 . 单相电机原理与设计[M]. 北京: 清华大学出版社, 1984.
[9]	王秀和 . 永磁电机[M]. 北京: 中国电力出版社, 2007.

参数	数值	参数	数值
额定功率/kW	11.8	额定转速/(r/min)	1 500
最大转速/(r/min)	2 000	额定转矩/N·m	75
过载倍数	2以上	效率(%)	91.2以上

Offset/mm	B_δavg/T	谐波畸变率(%)
9	0.675 2	19.90
10	0.664 4	17.96
11	0.656 0	17.26
12	0.644 8	16.23
13	0.635 9	15.68

对比参数	设计值	实验值	误差(%)
额定电压/V	326	321	1.5
额定电流/A	22.3	22.8	2.2
额定转矩/N·m	75	75	0
效率(%)	92.2	91.6	0.6
额定绕组温升/K	–	61	–
过载倍数	2.3	2.15	6.5
额定噪声/dB	–	63	–

成型工艺	工频异步电机	永磁同步电机
射胶电流/A	18.4	12.5
保压电流/A	14.5	6.7
溶胶电流/A	20.0	13.7
冷却电流/A	6.3	0
开模电流/A	12.5	8.6
顶针电流/A	14.5	5.1
待机电流/A	6.3	0
节电率(%)	48

[1]	YANG Zhihao,YANG Mengxue,WANG Sinuo,BAO Xiaohua. Effect of Stator Skewed Slot on Performance of Permanent Magnet Synchronous Motor [J]. Journal of Electrical Engineering, 2019, 14(3): 97-102.
[2]	YU Tong,LIU Jun,SUN Weifan. Weak Magnetic Control of Permanent Magnet Synchronous Motor Based on Fuzzy Theory [J]. Journal of Electrical Engineering, 2019, 14(1): 1-8.
[3]	Feng guihong,Huang he,Liu xiangyan. Research and Improvement of Permanent Magnet Synchronous Motor Direct Torque Control [J]. Journal of Electrical Engineering, 2018, 13(9): 1-7.
[4]	Yang Junzi,Feng Guihong,Zhang Bingyi. Design and Analysis of Permanent Magnet Synchronous Motor With Electric Screw for Arm [J]. Journal of Electrical Engineering, 2018, 13(8): 32-36.
[5]	Jikai Si, Suzhen Zhao, Lufeng Zhang, Ruiwu Cao, Wenping Cao. The Characteristics Analysis and Cogging Torque Optimization of a Surface-Interior Permanent Magnet Synchronous Motor [J]. Chinese Journal of Electrical Engineering, 2018, 4(4): 41-47.
[6]	Yaojing Feng, Fang Li, Shoudao Huang, Ning Yang. Variable-Flux Outer-Rotor Permanent Magnet Synchronous Motor for In-Wheel Direct-Drive Applications [J]. Chinese Journal of Electrical Engineering, 2018, 4(1): 28-35.
[7]	Jikai Si, Suzhen Zhao, Haichao Feng, Ruiwu Cao, Yihua Hu. Multi-Objective Optimization of Surface-Mounted and Interior Permanent Magnet Synchronous Motor Based on Taguchi Method and Response Surface Method [J]. Chinese Journal of Electrical Engineering, 2018, 4(1): 67-73.
[8]	Guoqiang Zhang, Gaolin Wang, Dianguo Xu. Saliency-Based Position Sensorless Control Methods for PMSM Drives - a Review [J]. Chinese Journal of Electrical Engineering, 2017, 3(2): 8-8.
[9]	PENG Guobin, JIANG Yan, LIU Ping, HUANG Shoudao, HE Renhao. Efficiency Optimization Control of IPMSM Driving System for Electric Vehicles Using Quasi-Z Source Inverter [J]. Journal of Mechanical Engineering, 2017, 53(16): 70-78.
[10]	Lan Zhiyong,Wei Xuehuan,Li Huru,Liao Keliang,Chen Linhong. Thermal Analysis of PMSM Based on Lumped Parameter Thermal Network Method [J]. Journal of Electrical Engineering, 2017, 12(1): 17-21.
[11]	Zhang Haifeng,Dong Zhi,Li Zhengxi. Optimization Design and Performance Analysis of Line Start Permanent Magnet Synchronous Motor [J]. Journal of Electrical Engineering, 2016, 11(11): 47-.
[12]	Yang Mei, Kai Sun, Yuchao Shi. A 2-D Fuzzy Logic Based MRAS Scheme for Sensorless Control of Interior Permanent Magnet Synchronous Motor Drives with Cyclic Fluctuating Loads [J]. Chinese Journal of Electrical Engineering, 2015, 11(1): 85-91.
[13]	ZHANG Hongjuan;QUAN Long;LI Bin. Comparative Study on Energy Efficiency of the Electro-hydraulic Control System in Injection Molding Machine [J]. , 2012, 48(8): 180-187.
[14]	JIAO Zhiwei;AN Ying;XIE Pengcheng;WANG Xingtian;YANG Weimin. Research on Novel Clamping Unit’s Working Principle of Injection Molding Machine [J]. , 2012, 48(10): 153-159.
[15]	CUI Cailian;SUN Mingxuan. DISCRETE ANTICIPATORY LEARNING CONTROL OF RAM VELOCITY IN INJECTION MOLDING MACHINES [J]. , 2007, 43(6): 41-47.