| Author Name | Affiliation | | HuangJun | Dept. of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China | | YANG Shi-Yan | Dept. of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China | | LiangQuan | Dept. of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China | | GAI Xiao-dong | Dept. of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China |
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| Abstract: |
| To improve the vehicle dynamic performance and ultra-capacitor operating circumstance,this paper studied the multi-current-two-quadrant converter applied to drive high power DC motor in ultra-capacitor electric bus(UCEB).Compared with normal current-two-quadrant converter,the multi-current-two-quadrant converter can reduce the motor armature current ripple and the ultra-capacitor current ripple.Moreover,it improves power capabilities,reliability and fault tolerant capability of driving system.After analyzing the structure and working principle of the multi-current-two-quadrant converter,the expressions of armature current ripple and the quantitative relationships between the ultra-capacitor power loss and duty cycle were derived.The simulation and experimental results showed that the multi-current-two-quadrant converter has great advantages in reducing the armature current ripple and ultra-capacitor power loss,which can improve the vehicle performance and overall efficiency. |
| Key words: multi-current-two-quadrant converter ultra-capacitor electric bus armature current ripple ultra-capacitor power loss efficiency |
| DOI：10.11916/j.issn.1005-9113.2011.02.018 |
| Clc Number:TM46 |
| Fund: |
