Analysis And Research Of Concerning Problem Of High Speed Rail's Traction Power System

Since high speed motor coaches relates with the traction power supply system firmly,it is also the most important base for studying the traction power supply system,so this dissertation first introduces the 300 and 700 series, the TGV-A and AGV, the ICE-3,those are the classical examples of Japan , France,Germany's high speed motor coaches.Then from the sight of the control strategies and the transition methodes of drive system for rolling stocks, studies and analyses the hight speed railway loads' characteristics.And then,combining china's situation studies and discusses mode of the OCS power supply system, connecting mode of the traction transformer.Then aiming the character that WUHAN-GUANGZHOU high speed railway's volume of passenge flow increases sharply in different periods,advances the three-transformer project,analyses the three-transformer project's virtues and flaws,design the cable connection draft. Aiming the plan that china will adapt AT power supply system,analyses the AT mode's electric theory and deduces the AT mode's wire current distibution parameter emphatically,aiming the fact that high speed railway'traction loads will very huge, analyses theories, deduces formulas and caculates examples about the current-burder capacity, traction power, current feeding and earthing, then discusses the mean virtual voltage lever of OCS and offer the calculate way that applies the theory of the power requirement per length. At last discusses the influence of traction power supply system generated by the regenerative brake.