研究与开发电力电子变换器潜在电路自动识别的计算机辅助分析法，可提高所设计的电力电子变换器的安全运行可靠性。建立电路器件和拓扑的通用信息库，并根据电力电子器件的特点提出其电流特性模型，基于器件的电流特性模型和搜索算法自动查找变换器中所有的电流路径，在此基础上，设计出"器件类"和"功能类"线索表，以自动识别变换器中所有的潜在电路。基于该方法开发的计算机辅助分析系统应用表明，它具有操作简单、自动化程度高、通用性强、准确性高等优点，可适用于复杂电力电子变换器的潜在电路分析。

Developing the computer-aided sneak circuit automatic identification method can improve the safety and reliability of power electronic converters in design. The general informative database of devices and topologies were constructed. The current model of power electronic device was defined according to its characteristics. After all of the possible circuit paths in converter were found out based on the device current models and searching algorithm, the sneak circuits could be identified by the device clues and function clues. A program was developed to realize the proposed sneak circuit analysis method. The application of the program shows that it can be used in analyzing complex power electronic converters.

国家自然科学基金项目(50507004, 50877028)；广东省自然科学基金项目(07006515)；广东省自然科学基金重点项目(8251064101000014)。