电力电子技术chapter.pptVIP

Outline 2.1 Single-phase controlled rectifier 2.2 Three-phase controlled rectifier 2.3 Effect of transformer leakage inductance on  rectifier circuits 2.4 Capacitor-filtered uncontrolled rectifier 2.5 Harmonics and power factor of rectifier circuits 2.6 High power controlled rectifier 2.7 Inverter mode operation of rectifier circuit 第2章 整流电路 2.1 单相可控整流电路 2.2 三相可控整流电路 2.3 变压器漏感对整流电路的影响 2.4 电容滤波的不可控整流电路 2.5 整流电路的谐波和功率因数 2.6 大功率可控整流电路 2.7 整流电路的有源逆变工作状态 2.1 Single-phase controlled  (controllable) rectifier 2.1.1 Single-phase half-wave controlled rectifier 2.1.2 Single-phase bridge fully-controlled rectifier 2.1.3 Single-phase full-wave controlled rectifier 2.1.4 Single-phase bridge half-controlled rectifier 2.1 单相可控整流电路 2.1.1 单相半波可控整流电路 2.1.2 单相桥式全控整流电路 2.1.3 单相全波可控整流电路 2.1.4 单相桥式半控整流电路 2.1.1 Single-phase half-wave controlled rectifier Half-wave, single-pulse Triggering delay angle, delay angle, firing angle 2.1.1 单相半波可控整流电路 ?? VT的a 移相范围为180? 通过控制触发脉冲的相位来控制直流输出电压大小的方式称为相位控制方式，简称相控方式。 2.1.1 Single-phase half-wave  controlled rectifier Inductive (resistor-inductor) load 2.1.1 单相半波可控整流电路 2) 带阻感负载的工作情况 Basic thought process of time-domain analysis for power electronic circuits The time-domain behavior of a power electronic circuit is actually the combination of consecutive transients of the different linear circuits when the power semiconductor devices are in different states. 2.1.1 单相半波可控整流电路 对单相半波电路的分析可基于上述方法进行： 当VT处于断态时，相当于电路在VT处断开，id=0。 当VT处于通态时，相当于VT短路。 2.1.1 单相半波可控整流电路 当VT处于通态时，如下方程成立： Single-phase half-wave controlled rectifier with freewheeling diode Disadvantages: Only single pulse in one line cycle DC component in the transformer current 2.1.1 单相半波可控整流电路 续流二极管 2.1.2 Single-phase bridge  fully-controlled rectifier For thyristor: maximum forward voltage, m