Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Transactions of China Electrotechnical Society》 2008-07
Add to Favorite Get Latest Update

Tractive Characteristics Analysis for High Power Linear Induction Motors in Transportation

Xu Wei Li Yaohua Sun Guangsheng He Jinwei Du Yumei Tan Longcheng Ren Jinqi Wang Ke Han Junfei Jin Nengqiang(Chinese Academy of Sciences Beijing 100080 China)  
Based on two-dimensional magnetic equations of linear induction motors(LIM),the phase current and excited voltage expressions are obtained by dummy electric potential method.Then it deduces the air-gap flux linkage expression by connecting Maxwell electromagnetic field equations,complex power method with conformal transformation method fully considering half-filled slots,york magnetic saturation,back iron resistance.This article,by the equal complex power relationship between magnetic and circuit,obtains some expressions involving excited reactance xm0,secondary resistance r2′,secondary leakage reactance x2,longitudinal end effect coefficients Kr(s) and Kx(s),transverse end edge effect coefficients Cr(s) and Cx(s),skin effect coefficient Kf.Depending on the T-model of rotary induction motor(RIM),this paper presents a new revised T-model equivalent circuit for LIM by superposition theorem.This new model makes calculation for Japanese 12000-LIM in detail.Many variables attained by new model including thrust force,phase current,power factor and efficiency are compared with those of space harmonic method and experience.The contrastive curves and error analysis indicate that this model is credible and accords with engineering application requirement.Therefore,it is so useful that establishes foundation for design and optimization for high-power LIM in transportation.
【CateGory Index】: TM359.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved