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| 三相DC/AC变换器死区效应分析与精确补偿 | |
| 引用本文： | 张瑾,齐铂金,张少如,秦文萍.三相DC/AC变换器死区效应分析与精确补偿[J].北京航空航天大学学报,2009,35(12):1477-1482. |
| 作者姓名： | 张瑾 齐铂金 张少如 秦文萍 |
| 作者单位： | 北京航空航天大学机械工程及自动化学院,北京,100191;河北师范大学物理科学与信息工程学院,石家庄,050016;太原理工大学电气与动力工程学院,太原,030024 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 在现有无死区控制方法的基础上,提出一种新的死区补偿策略.分析了死区效应以及开关器件非理想特性使逆变器输出电压产生畸变的原因,通过修正原始驱动信号,抑制了开关器件非理想特性对逆变器的影响,实现了死区效应的精确补偿.同时,改进了电流方向检测电路,提高了电流方向在零点附近的检测精度.实验结果证实,所提补偿策略简单可行,与现有死区补偿方法相比,逆变器输出波形正弦度进一步提高,获得了更优的补偿效果. |
| 关 键 词： | 电压源逆变器 死区效应 谐波畸变 电流检测 |
| 收稿时间： | 2009-02-17 |
Analysis and accurate compensation of dead-time for three-phase DC/AC inverter |
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| Zhang Jin,Qi Bojin,Zhang Shaoru,Qin Wenping.Analysis and accurate compensation of dead-time for three-phase DC/AC inverter[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(12):1477-1482. | |
| Authors: | Zhang Jin Qi Bojin Zhang Shaoru Qin Wenping |
| Institution: | 1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China; 2. College of Physics and Information Engineering, Hebei Normal University, Shijiazhuang 050016, China; 3. College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
| Abstract: | A novel approach to compensate the dead-time effect based on the existing no-dead-time technique was presented.The reason of the inverter output voltage distortion was analyzed with the consideration of the dead-time and the non-ideal characteristics of the switching devices.The proposed method was implemented by adjusting the pulse width of the original driving signals to compensate the switching delay and voltage drop effect of the power devices,thus the effects were prevented from propagating into the ac... |
| Keywords: | voltage-source inverter dead-time harmonic distortion current measurement |
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