1、E qy os周腊吾1, 朱英浩2 ( 1. 2v , 2 410082; 2. +M , a +110179)K 1: 阻感负载整流电路是电力电子装置的输入端电路之一,是电力系统中的主要谐波源.从工程实际出发,分析了忽略换相过程和直流侧电流脉动时,阻感负载单相桥式a三相桥式可控整流电路以及多相整流电路的功率因数和谐波情况,并针对半控桥式整流电路作了谐波分析.所得到的一些结论对阻感负载整流电路的工程实际应用具有理论指导意义.1oM: 整流;功率因数;谐波;阻感负载ms |: T M761+ . 1 DS M : A cI|: 1671- 119X( 2003) 04- 0004- 04 0 X
2、 “d1o,7 Ohv q1- 3 .yN, 0 qy # 3os9 o qB1Z .E(/eE) T 0 B,B K,m6 U 6 M e B T .B F B =5, 6B| BB / BD=5. om5(b)M, q(?A.m7 M e B T6 2 2003 M # To.M , L= FB =5( m8 U),M , To (M.A , o,Qoc # qy 9 (?A %.(a) (b)m5 BM e B T m6 6 M e B T m7 B M e B T # o“, V=) sZE,m5(b)m7( b) U e B T os, m9m10 UQoc wL.M e B T ,
3、 o,#c Qo,m9 3. 5.7Qoc ; M e B T , o,yNc Qo,y M,#c3#3 Qo,m10 2a4a5a7Qoc .m9m10rU q:rU= (1+ cosA)/2 (17)m8 =5 M e B Tm9 M e B T Qoc wL m10 M e B T Qoc wL3 (1) MV H,E7, e B T oc K,y7 qy 9 K.M B T V e oc 11 M B TvBt,“(?/, qy 9 Bt.M VYV9F qrh o4 qy “.(2) L=, M .sV Bt M BQ , L= il.参 考 文 献 1 , W, 2. “do M
4、.: , 1988. 2 x, , +.o q M .: ? F .212 “ l M1, H, E wME l, j . M uT M_ M,4 .yN V1 l “ .213 r q1Q q, V ,9 V . BQ ZEM1,/+: , TZL, 3r q.参 考 文 献 1 y . M ., 2000. 2 m . m M ., 1990. 3 . !9 M .,1995.Designof DrawingDieforMultilayerTaperLI Jian- ming( Dept. of Elect. and Information, Hunan Inst itute of Eng
5、ineering, Xiangtan 411101, China)Abstract: In order to solve the problem of the craze during dawing and several time dawing, design method ofmultilayer taper die, its structure and parameter are discussed in this paper. The die can improve the quality ofdrawing and the efficiency of productivity. It
6、 also helpful to the design of similar parts.Keywords: drawing; taper; multilayer(上接第7页)4 Rice D. E. A detailed analysis of six - pulseconverter harmonic currents J . IEEE TransInd Appl, 1994, 30( 2) : 294- 304.PowerFactorandHarmonicAnalysisforResistance-inductanceLoadRectificationCircuitsZHOU La- w
7、u1, ZHU Ying- hao2( 1. College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;2. Institute of Shenyang Transformer, Shenyang 110179, China)Abstract: Resistance-Inductance Load Rectification Circuit is one of the main harmonic sources. with neglectingthe process o
8、f commutation and DC current pulsation, the thesis analyses the power factor and harmonics for Re-sistance-Inductance Load single-phase bridge type, three-phase bridge type and mult-i phase rectification circuits,as well as hal-f control bridge type circuits. T he results are helpful to engineering appications.Keywords: rectification; power factor; harmonics; resistance-inductance load56 2 2003 M
