大功率电力电子器件集约化应用的关键技术研究

项目名称： 大功率电力电子器件集约化应用的关键技术研究

项目编号： No.51277161

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 电工技术

项目作者： 张军明

作者单位： 浙江大学

项目金额： 80万元

中文摘要： 本项目拟对目前大功率变流装置中功率器件开关容量利用率低、器件电气应力优化与开关损耗优化相互制约等共性问题进行研究，以改变目前普遍存在的粗放、低效的器件应用方式。拟以IGBT器件为例，重点研究基于门极驱动控制方式，实现开关瞬态中各开关阶段的快速、有效控制，以充分利用现有器件的开关容量和潜力，降低其电气应力及开关损耗，改善其运行可靠性。探索高速电流型驱动及控制方法以改善器件运行的可靠性。同时，结合系统的运行状况，探索典型大功率逆变装置在功率时变情况下的优化运行模式。 通过本项目的研究，将初步建立新型的高速电流型门极驱动及调节方式，大幅度改善器件在开关瞬态各阶段运行的可靠性，为功率器件的高效、集约化应用做出深入系统的研究。

中文关键词： IGBT；电流型门极驱动；电气应力；开关损耗；可靠性

英文摘要： Due to the voltage/current overshoot existed in the switching transient, usually highly over-rated power devices are required in high power converter to increase its reliability. Thus, the utilization of power device capability is quite poor, which both increases the cost and deteriorates the performance of the converters. The conventional method to reduce these voltage/current overstress to improve the power device capability utilization usually results in high power loss. In this project, we try to investigate new solution to maximize the utilization of power device capability without compromising the reliability and power loss. And we will focus on high power silicon IGBT due to its popularity. The key point is how to drive and control the IGBT device in each stage during the switching transient to achieve low electrical stress, low power loss and high reliability. For this purpose, the high speed current source gate driving method and related control method will be studied. The system level optimized driving pattern will also be studied based on the operation of the converter itself, especially for the high power inverters whose output power always varies in an output period. The objective of the project is to propose high speed current source gate driving method and the related high speed regulation method

英文关键词： IGBT；current source gate drive；swicthing stress；switching loss；reliability