Research on energy-saving of adjustable speed drive system in use of high power density chopper

这项研究的精髓可以概括为两点。一是用100kW/L实现了输出功率为50kW的超高功率密度Sazz斩波器。效率约为99%。第二点是斩波式可调电机驱动的节能率取决于系统配置。在电动汽车的情况下，通过JC08驾驶模式试验，实验证实了3%的续航里程延长。如果斩波器的重量变小，直流电压可以降低，节能率有可能达到10%以上。

The essence of this research can be summarized into two points. One is that the ultra-high power density SAZZ chopper was realized with 100 kw/l with 50 kw output. The efficiency is about 99%. And the second point is that the energy saving rate of the adjustable motor drive with a chopper depends on the system configuration. In case of electric vehicle, the 3 % driving range extension was experimentally confirmed with JC08 driving mode test. And also if the weight of the chopper becomeslower and the dc voltage can be lower, the energy saving rate has possibility to become more than 10 %.