三电平IBDC双边脉宽死区补偿策略研究  

Research on Bilateral Pulse Dead-time Compensation for Three-level IBDC

作　　者：王彦旭[1] 付超[1] 石新春[1] 杨喆明 WANG Yan-xu FU Chao SHI Xin-ehun YANG Zhe-ming(State Key Laboratory of Alternate Electronic Power System With Renewable Energy Source, North China Electric Power University, Baoding 071000, China)

机构地区：[1]新能源电力系统国家重点实验室,华北电力大学,河北保定071000

出　　处：《电力电子技术》2017年第5期17-19,共3页Power Electronics

摘　　要：详细分析了死区对于三电平隔离式双向DC/DC变换器(IBDC)不同工作状态下电压、电流的影响,根据IBDC不同工作状态,死区造成隔离变压器输入与输出的三电平电压损失各不相同,提出一种双边脉宽死区补偿策略。该策略针对三电平IBDC的对称性要求,对变压器双边进行严格的脉宽补偿。搭建了一台实验样机,实验结果验证了该策略的可行性。The voltage and current effects of the three-level isolated bidirectional DC/DC converter（IBDC） output for dead-time are analyzed.According to all working status,there exists deferent voltage loss between converters in both sides of the isolation transformer.A method of bilateral pulse dead-time compensation strategy is given.This strategy compensate the loss voltage strictly both sides of the isolation transformer to meet the requirements of symmetry for the three-level IBDC.A prototype is built, and the results show the correctness of the strategy.

关 键 词：变换器 死区补偿 三电平 

分 类 号：TM46[电气工程—电器]