电力电子技术第1篇 [兼容模式].pdf

Power Electronics Chapter 1 Power Electronics Devices 第一章 电力电子器件 Outline 概览 1.1 An introductory overview of power electronic devices 电力电子器件间接 1.2 Power diode, GTR, power MOSFET 功率二极管，功率三极管，功率场效应管 1.3 Thyristor 晶闸管 1.4 GTO, GCT 门极可关断晶闸管，门极换流晶闸管 1.5 IGBT, IPM 绝缘栅双极型晶体管，智能功率模块 1.6 New devices 新型电力电子器件 1.1 An introductory overview of power electronic devices 电力电子器件总览 • The concept and features 概念和特性 • Configuration of systems using power electronic devices 由电力电子器件构成系统的结构 • Classifications 分类 The concept of power electronic devices 电力电子器件概念 • Power electronic devices: are the electronic devices that can be directly used in the power processing circuits to convert or control electric power. 电力电子器件直接用于功率电路或控制电能。 Power electronic devices = Power semiconductor devices 电力电子器件=功率半导体器件 • Major material used in power semiconductor devices— —Silicon 功率器件的主要材料是硅。 Features of power electronic devices 电力电子器件的特性 • The electronic power that power electronic device deals with is usually much larger than that the information electronic device does. 电力电子器件通常比信息电子器件大得多。 • Usually working in switching states to reduce power losses. 电力电子器件工作在开关状态以较少损耗。 理想状况下： On-state Voltage across the device is 0 导通时器件电压为0 Off-state Current through the device is 0 关断时器件电流为0 Features of power electronic devices • Need to be controlled by information electronic circuits. Very often, drive circuits are necessary to interface between information circuits and power circuits. 电力电子器件由信息电子电路控制（用弱电控制 强电）。驱动电路是强电和弱点之间的纽带。 • Dissipated power loss usually larger than information electronic devices —special packaging and heat sink are necessary. 器件本身的功率损耗信息电子器件大得多，因此