Transportation Systems and TechnologyTransportation Systems and TechnologyСетевой электронный журнал "Транспортные системы и технологии"2413-9203Eco-Vector1018610.17816/transsyst201842120-128Original papersОригинальные статьиResearch ArticleDesign of single-sided linear induction motor for low-speed Maglev vehicle in 160 km/h and variable slip frequency controlhttps://orcid.org/0000-0002-9951-3919HeYunfeng
China

Ph.D, senior engineer

heyunfeng@crrcelectric.comhttps://orcid.org/0000-0002-8081-4957WangYou-Sheng
China

bachelor, Professor

eewangys@zju.edu.cnhttps://orcid.org/0000-0002-3452-5564LuQinfen
China

Ph.D, Professor

luqinfen@zju.edu.cnhttps://orcid.org/0000-0003-0840-9401ZhangLei
China

master, engineer

zhanglei@crrcelectric.comhttps://orcid.org/0000-0001-8874-9208LiangFang
China

master, engineer

fangliang@crrcelectric.comCollege of Electrical Engineering, Zhejiang UniversityCRRC Zhuzhou Electric CO., LTD13092018421201281709201817092018Copyright ©; 2018, He Y., Wang Y., Lu Q., Zhang L., Liang F.Copyright ©; 2018, He Y., Wang Y., Lu Q., Zhang L., Liang F.2018He Y., Wang Y., Lu Q., Zhang L., Liang F.He Y., Wang Y., Lu Q., Zhang L., Liang F.http://creativecommons.org/licenses/by-nc-nd/4.0https://journals.eco-vector.com/transsyst/article/view/10186

Background: The mid-low speed Maglev train adopts the single-sided linear induction motors (SLIMs) as drive part, of which design and control method has become research hotspot when the velocity is elevated from 120 km/h to 160 km/h.

Aim: For SLIMs applied in 160 km/h low-speed maglev train, the design scheme is introduced and then a novel variable slip frequency control method is proposed.

Methods of the studies: This control method adopts low slip frequency at start-up to produce large starting traction force and high slip frequency during high velocity area to obtain great power. The influence to the normal force is also investigated.

Results: With this method, the weight of the system can be effectively reduced and the lightweight design of SLIM is realized.

Conclusion: The novel variable slip frequency control method meets the requirement of both high starting acceleration and enough residual acceleration for 160 km/h mid-low speed maglev train.

mid-low speed maglev trainlinear induction motorslip frequencytraction forcenormal forceYan G L. The linear motor powered transportation development and application in China Proc. IEEE. 2009;97(11):1872-1880. doi: 10.1109/JPROC.2009.2030245Gieras JF, Dawson GE, Eastham AR. Performance calculation for single-sided linear induction motors with a double-layer reaction rail under constant current excitation. IEEE Trans. Magn. 1986;lM-22(1):54-62.Im DH, Park SC, Im JW. Design of single-sided linear induction motor using the finite element method and SUMT. IEEE Trans. Magn. 1993;29(2):1762-1766.Dawson G, Easthma AR, Gieras JF, Ong R, Ananthasivam K. Design of linear induction drives by field analysis and finite-element techniques. IEEE Trans. Ind. Appl. 1986;IA-22(5):865-873.Ye YY. The Theory and Application of Linear Motor. Beijing, China: Mech. Ind. Press, Jun. 2000.Ham SH, Lee SG, Kim KS, Cho SY, Jin CS, Lee J. Study on reduction of transverse edge effect of single-sided linear induction motor for transportation system. Proc. Int. Conf. Electr. Mach. Syst., Tokyo, Japan, Nov. 2009, p. 1–4.Lv G, Li Q, Liu ZM, Fan Y, Li GG. The analytical calculation of the thrust and normal force and force analyses for linear induction motor. Proc. 9th Int. Conf. Sig. Process., Beijing, China, Dec. 2008, p. 2795-2799.Gieras JF, Dawson GE, Eastham AR. A new longitudinal end effect factor for linear induction motors. IEEE Trans. Energy Convers. 1987;EC-2(1):152-159.Lu JY, Ma WM. Research on end effect of linear induction machine for high-speed industrial transportation. IEEE Trans. Plasma Sci. 2011;39(1):116-120. doi: 10.1109/TPS.2010.2085089Kim D-K, Kwon B-I. A novel equivalent circuit model of linear induction motor based on finite element analysis and its coupling with external circuits. IEEE Trans. Magn. 2006;42(5):3407-3409. doi: 10.13334/j.0258-8013.pcsee.2015.15.026Yamaguchi T, Kawase Y, Yoshida M, Saito Y, Ohdachi Y. 3-D finite element analysis of a linear induction motor. IEEE Trans. Magn. 2001;l.37(5):3668-36741.Lv G, Zeng D, Zhou T, Liu Z. Investigation of forces and secondary losses in linear induction motor with the solid and laminated back iron secondary for metro. IEEE Trans. Ind. Electron. 2017;64(6):4382-4390. doi: 10.1109/TIE.2016.2565442Lu Q, Li Y, Ye Y, Zhu ZQ. Investigation of forces in linear induction motor under different slip frequency for low-speed maglev application. IEEE Trans. Energy Convers, 2013;28(1):45-153. doi: 10.13334/j.0258-8013.pcsee.2015.15.026