A Study on Miniaturization of Power Conversion System for Electric Vehicle

提出了一种新颖的三相多相耦合电感升压斩波电路，可在电动汽车功率变换系统中实现高功率密度性能。该电路利用交叉连接技术引入了一种新颖的三相耦合电感铁心，不仅可以获得输出电容的紧凑的轻量化性能，而且可以获得磁元件的轻量化性能。在连续电流模式驱动中，与无耦合电感磁芯相比，该磁芯的输出功率约为2.7倍，与总重量大致相当。对所提出的耦合电感三相多相升压斩波电路的结构紧凑、重量轻的特点和性能进行了理论分析和实验研究。

This report presents a novel three phase multi-phase boost chopper circuit with coupled inductor, which can achieve high power density performance in the power conversion system for electric vehicle. The proposed circuit which bring in a novel three phase coupled inductor core by using trans-linked technique can obtain the compact light-weight performance not only the output capacitor but also the magnetic component. The proposed core can output is about 2. 7 times as compared to the non-coupled inductor core in the continuous current mode drive, which is approximately equal to the total weight. The compact and light-weight characteristics and performance of proposed three phase multi-phase boost chopper circuit with coupled inductor is discussed with theoretical analysis and experimental results.