电力电子学亟待解决的若干基础问题探讨

Discussion on Several Fundamental Problems Necessary to be Solved in Power Electronics

电力电子技术作为一个学科,其基础理论的发展一直处于滞后状态,尚未形成一个完整的科学体系。本文从电力电子变换器分析模型、系统特性、一般特性、开关拓扑统一分析理论、开关拓扑构造正弦波理论、非线性控制策略、故障及潜电路和安全诊断八个方面提出其可能存在的问题。由此通过混杂系统理论、多维空间理论、系统科学理论、多值逻辑理论、非线性控制理论和一些正在开展研究的实例,提出了相应的研究思路和发展方向,以期使电力电子技术从现有技术层面上升到电力电子学的层面,促进该学科的发展。

As one branch of electrical engineering, power electronics has not established a complete scientific research system until now and the development of its fundamental theory lags behind its technology. This paper puts forward some possible existing problems in the following eight aspects： the analysis model of power electronic system, the systematic characteristics of power electronic system, the fundamental characteristics of power electronic system, the general analysis theory for switching topology, the method to form sine wave by controlling switching topology, the nonlinear control strategies, the fault and sneak circuit phenomena and safety diagnoses for power electronic system. Then the corresponding research ideas, and development trends are proposed according to hybrid dynamic system, multiple-dimension space theory, system scientific theory, multiple-valued logic theory, nonlinear system control theory, and some related research results, which will enhance the develonment of oower electronics.