Vibration Reduction Method of Switched Reluctance Motor with Amorphous Alloy Cores Based on Inverse-Magnetostriction Effect
Ben Tong1, Wang Jin1, Chen Long1, Jing Libing2, Yan Rongge3
1. College of Electrical Engineering and New Energy China Three Gorges University Yichang 443002 China; 2. Hubei Provincial Engineering Technology Research Center for Microgrid China Three Gorges University Yichang 443002 China; 3. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300130 China
Abstract Switched reluctance motors are applied in electric vehicles due to their simple structure and low cost. The amorphous alloy used in the switched reluctance motor core can greatly improve the efficiency of the motor. However, its large magnetostrictive coefficient and strong stress sensitivity (i.e. inverse-magnetostriction effect) will increase the core vibration and limit the precise control ability of electrical signals. Therefore, a new approach is proposed to use the inverse-magnetostriction effect to control the electromagnetic vibration of switched reluctance motors with amorphous alloy cores (SRMA). Then, the compressive stress applied structure of the SRMA stator teeth is proposed. The simulation and experimental results show that the vibration reduction method is feasible. Firstly, a nonlinear magnetostriction and inverse-magnetostriction effect force-magnetic coupling con- stitutive relation of the amorphous alloy is proposed based on the macroscopic thermodynamics to analyze the vibration of a SRMA. The parameters are measured by magnetic properties measurement system. Thus, the magnetostrictive strain and relative permeability of amorphous alloys with a magnetic field and compressive stress applied can be calculated. Secondly, the compressive stress applied structure of the SRMA is proposed according to the inverse-magnetostriction effect, and a finite element model of the structure is established to verify its stability. Then, according to the extended solution of the electromagnetic stress and magnetostrictive stress, a two-way dynamic electromagnetic-force coupling model of the SRMA considering the magnetostriction and inverse-magnetostriction effects is established. Finally, experiments and finite element calculations are carried out on the vibration characteristics of SRMA. The magnetic flux density in the stator yoke area remained at about 0.3 T before and after the improvement, which shows that the SRMA can still maintain the original running state after the improvement. Furthermore, the finite element calculation results before and after considering the magnetostriction of the SRMA stator are compared. It is shown that the main sources of vibration are magnetostrictive stress and electromagnetic stress. Among them, the proportion of magnetostrictive stress in dynamic stress can reach up to 42.4 %. Besides, after the stator teeth are applied to 24 MPa compressive stress, the radial magnetic flux density near the bolt is significantly reduced due to the force-magnetic coupling, and the radial magnetic flux density and electromagnetic stress in the air gap are reduced by 26.3 % and 44.5 %, respectively. By comparing the experimental and simulation results of the vibration displacement, the spectral distribution is consistent, which verifies the accuracy of the proposed SRMA model. The following conclusions can be drawn from the simulation and experiment analysis: (1) The proposed force-magnetic coupling constitutive relation of the amorphous alloy can simulate the magnetostriction and the inverse-magnetostriction effect, and the nonlinear effect of stress on the relative permeability of amorphous alloys can be described more accurately. (2) By solving the two-way dynamic electromagnetic-force coupling model of the SRMA, the magnetostriction effect cannot be ignored in the vibration analysis of SRMA. (3) The compressive stress applied structure of the stator teeth can reduce vibrations while maintaining the original operation of the SRMA. It provides a new idea for research on the vibration reduction of SRMAs.
Ben Tong,Wang Jin,Chen Long等. Vibration Reduction Method of Switched Reluctance Motor with Amorphous Alloy Cores Based on Inverse-Magnetostriction Effect[J]. Transactions of China Electrotechnical Society, 2023, 38(10): 2648-2660.
[1] 闫文举, 陈昊, 马小平, 等. 不同转子极数下磁场解耦型双定子开关磁阻电机的研究[J]. 电工技术学报, 2021, 36(14): 2945-2956. Yan Wenju, Chen Hao, Ma Xiaoping, et al.Develop- ment and investigation on magnetic field decoupling double stator switched reluctance machine with different rotor pole numbers[J]. Transactions of China Electrotechnical Society, 2021, 36(14): 2945-2956. [2] 闫文举, 陈昊, 刘永强, 等. 一种用于电动汽车磁场解耦型双定子开关磁阻电机的新型功率变换器[J]. 电工技术学报, 2021, 36(24): 5081-5091. Yan Wenju, Chen Hao, Liu Yongqiang, et al.A novel power converter on magnetic field decoupling double stator switched reluctance machine for electric vehicles[J]. Transactions of China Electrotechnical Society, 2021, 36(24): 5081-5091. [3] 王立军, 张广强, 李山红, 等. 铁基非晶合金应用于电机铁芯的优势及前景[J]. 金属功能材料, 2010, 17(5): 58-62. Wang Lijun, Zhang Guangqiang, Li Shanhong, et al.Advantages and prospects of Fe-based amorphous alloy materials applied in motor iron core[J]. Metallic Functional Materials, 2010, 17(5): 58-62. [4] Ismagilov F R, Papini L, Vavilov V E, et al.Design and performance of a high-speed permanent magnet generator with amorphous alloy magnetic core for aerospace applications[J]. IEEE Transactions on Industrial Electronics, 2020, 67(3): 1750-1758. [5] 杨庆新, 李永建. 先进电工磁性材料特性与应用发展研究综述[J]. 电工技术学报, 2016, 31(20): 1-29. Yang Qingxin, Li Yongjian.Characteristics and developments of advanced magnetic materials in electrical engineering: a review[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 1-29. [6] 张国忠, 李艳辉, 吴立成, 等. Fe基纳米晶软磁合金退火脆性的研究进展[J]. 材料导报, 2020, 34(3): 171-177. Zhang Guozhong, Li Yanhui, Wu Licheng, et al.Research progress on annealing embrittlement of Fe-based nanocrystalline soft magnetic alloys[J]. Materials Reports, 2020, 34(3): 171-177. [7] 匡斯建, 张小平, 刘苹, 等. 基于相电感非饱和区定位的开关磁阻电机无位置传感器控制方法[J]. 电工技术学报, 2020, 35(20): 4296-4305. Kuang Sijian, Zhang Xiaoping, Liu Ping, et al.Sensorless control method for switched reluctance motors based on locations of phase inductance characteristic points[J]. Transactions of China Elec- trotechnical Society, 2020, 35(20): 4296-4305. [8] 卿龙, 王惠民, 葛兴来. 一种高效率开关磁阻电机转矩脉动抑制方法[J]. 电工技术学报, 2020, 35(9): 1912-1920. Qing Long, Wang Huimin, Ge Xinglai.A high effi- ciency torque ripple suppression method for switched reluctance motor[J]. Transactions of China Electro- technical Society, 2020, 35(9): 1912-1920. [9] 张鑫, 王秀和, 杨玉波. 基于改进磁场分割法的开关磁阻电机径向力波抑制能力解析计算[J]. 电工技术学报, 2015, 30(22): 9-18. Zhang Xin, Wang Xiuhe, Yang Yubo.The com- putation of vibration reduction capacity for switched reluctance motor based on improved magnetic field partition method[J]. Transactions of China Electro- technical Society, 2015, 30(22): 9-18. [10] Sahin C, Amac A E, Karacor M, et al.Reducing torque ripple of switched reluctance machines by relocation of rotor moulding clinches[J]. IET Electric Power Applications, 2012, 6(9): 753. [11] Yang Yubo, Yang Xiaotong, Chen Peng, et al.Electromagnetic performance analysis of hybrid excited segmental rotor flux switching machine[J]. IEEE Transactions on Magnetics, 2018, 54(11): 1-5. [12] 张欣, 解超群, 祝丽花, 等. 考虑磁致伸缩效应的电机应力数值仿真与实验[J]. 电工技术学报, 2017, 32(增刊2): 50-55. Zhang Xin, Xie Chaoqun, Zhu Lihua, et al.Numerical simulation and experimental research on stress of motor including magnetostriction effects[J]. Transa- ctions of China Electrotechnical Society, 2017, 32(S2): 50-55. [13] 张鹏宁, 李琳, 聂京凯, 等. 考虑铁心磁致伸缩与绕组受力的高压并联电抗器振动研究[J]. 电工技术学报, 2018, 33(13): 3130-3139. Zhang Pengning, Li Lin, Nie Jingkai, et al.Study on the vibration of high voltage shunt reactor considering of magnetostriction and winding force[J]. Transa- ctions of China Electrotechnical Society, 2018, 33(13): 3130-3139. [14] 吴胜男, 于慎波, 佟文明, 等. 磁致伸缩引起的径向磁通电机定子铁心振动精确解析模型[J]. 电工技术学报, 2019, 34(2): 226-235. Wu Shengnan, Yu Shenbo, Tong Wenming, et al.A precise analytical model of stator core vibration due to magnetostriction for radial flux motors[J]. Transa- ctions of China Electrotechnical Society, 2019, 34(2): 226-235. [15] Wang Zhen, Zhang Yanli, Ren Ziyan, et al.Modeling of anisotropic magnetostriction under DC bias based on an optimized BP neural network[J]. IEEE Transa- ctions on Magnetics, 2020, 56(3): 1-4. [16] Zhang Pengning, Li Lin, Cheng Zhiguang, et al.Study on vibration of iron core of transformer and reactor based on maxwell stress and anisotropic magneto- striction[J]. IEEE Transactions on Magnetics, 2019, 55(2): 1-5. [17] 迟青光, 张艳丽, 陈吉超, 等. 非晶合金铁心损耗与磁致伸缩特性测量与模拟[J]. 电工技术学报, 2021, 36(18): 3876-3883. Chi Qingguang, Zhang Yanli, Chen Jichao, et al.Measurement and modeling of lossand magneto- strictive properties for the amorphous alloy core[J]. Transactions of China Electrotechnical Society, 2021, 36(18): 3876-3883. [18] 韩雪岩, 赵森磊, 周挺, 等. 非晶合金电机振动噪声影响因素的研究[J]. 电工技术学报, 2015, 30(14): 531-538. Han Xueyan, Zhao Senlei, Zhou Ting, et al.Research on vibration and noise of a amorphous metal motor[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 531-538. [19] Zivotsky O, Hendrych A.Influence of tensile stress on the surface magneto-optical hysteresis loops in amorphous and (nano) crystalline ribbons[J]. IEEE Transactions on Magnetics, 2014, 50(4): 1-4. [20] 贲彤, 陈芳媛, 陈龙, 等. 考虑力-磁耦合效应的无取向电工钢片磁致伸缩模型的改进[J]. 中国电机工程学报, 2021, 41(15): 5361-5371. Ben Tong, Chen Fangyuan, Chen Long, et al.An improved magnetostrictive model of non-oriented electrical steel sheet considering force-magnetic coupling effect[J]. Proceedings of the CSEE, 2021, 41(15): 5361-5371.
2023, Vol. 38 
