Circuit implementation of power converter for high-speed switching operations
Circuit implementation of power converter for high-speed switching operations
复制标题
DOI：
10.23919/cjee.2018.8471289
复制
发表时间：
2018-09
影响因子：
--
通讯作者：
K. Wada
中科院分区：
文献类型：
--
作者：
K. Wada
为了实现高效的功率转换电路，人们对功率转换电路的高di/dt和dv/dt切换操作进行了研究。在这种情况下，直流电容和电源器件之间母线的寄生电感可能会导致过调电压和电磁干扰（EMI）噪声问题。因此，有必要在设计母线几何形状的同时考虑母线寄生电感的最小化和优化。本文讨论了母线几何形状与开关特性的关系。此外，基于PEEC方法对母线进行了分析，并采用电感图法在考虑杂散电感的基础上对母线进行了几何设计。此外，本文还提出了一种基于标准化方法的可接受杂散电感设计方法。应该注意的是，杂散电感的设计不是为了最小化，而是为了优化，并且它不是以绝对值(H)表示，而是以百分比值（%）表示。最后，在关断操作下的振荡波形将根据母线的几何形状进行讨论。
Recently, high di/dt and dv/dt switching operations of power converter circuits has been discussed for realizing a high-efficiency power converter circuit. In this case, parasitic inductances of the bus bar between a DC capacitor and power devices may cause issues of overshoot voltage and electromagnetic interference(EMI) noise. Therefore, it is necessary to design the bus bar geometry while considering the minimization and optimization of the parasitic inductance of bus bar. This paper discusses a relationship between bus bar geometry and switching characteristics. In addition, the bus bar analysis is based on the PEEC method, and the bus bar geometry is designed by considering the stray inductance with using an inductance-map method. Moreover, this paper also presents a design procedure of acceptable stray inductance based on a standardization method. It should be noted that the stray inductance is designed not for minimization, but optimization, and it is shown not as an absolute value(H), but as a percentage value(%). Finally, the oscillation waveforms under turn-off operation will be discussed depending on the bus bar geometry.