《电力电子》期刊已经刊出8期了(有两期为合刊)。已有不少读者来信、来电鼓励、批评、建议,我们表示衷心感谢。其中一个重要问题是“期刊定位”。电力电子技术经过40年的发展经历了几个大阶段,已经逐渐成熟为一个独立的行业,涵盖了功率半导体器件及其在电能产生、输送及转换应用中的各个领 The issue of “Power Electronics” has been published in eight issues (there are two issues for the combined issue). Many readers have letters, calls encouragement, criticism, suggestions, we sincerely thank. One of the important issues is “Journal Positioning ”. Power electronics technology has undergone several major phases after 40 years of development and has gradually become an independent industry covering power semiconductors and their applications in power generation, transport and conversion applications