Title :
Study of Neutral-Point Voltage Unbalancing Problem in DC-Rail ZVT Inverter
Author :
Zhengfeng, Ming ; Baolin, HAN
Author_Institution :
Xidian Univ., Xian
Abstract :
This paper analyzes the unbalancing problem of neutral-point voltage with light load in DC-Rail ZVT softswitching inverter. Description of the unbalance reason and the influence to the circuit operating process are detailed through theoretical analyses, and then the schemes of solving this problem are presented. Finally, the scheme feasibility is verified by relative experiments.
Keywords :
invertors; railway electrification; switching convertors; DC-rail ZVT inverter; neutral-point voltage unbalancing problem; soft-switching inverter; Capacitance; Circuit topology; Filtering; Power supplies; Pulse width modulation inverters; RLC circuits; Rails; Resonance; Voltage control; Zero voltage switching; Neutral-Point Voltage; Unbalancing Problem; ZVT;
Conference_Titel :
Industrial Electronics Society, 2007. IECON 2007. 33rd Annual Conference of the IEEE
Conference_Location :
Taipei
Print_ISBN :
1-4244-0783-4
DOI :
10.1109/IECON.2007.4459906
