1 / 13

2.2 三相可控整流电路

2.2 三相可控整流电路. 三相半波可控整流电路 三相桥式全控整流电路. 2.2.1 三相半波可控整流电路. 1. 电阻负载. a =0  —— w t = 30  . a =30  —— w t = 60 . 负载电流处于连续和断续之间的临界状态. a =60 —— w t = 90 . a 角移相范围 ： 0 ~ 150 ° . 负载电压 平均值 ： a ≤30  时，负载电流连续 a >30  时，负载电流断续 负载电流平均值 ： I d = U d / R. SCR 的电流、电压 ：

jock
Download Presentation

2.2 三相可控整流电路

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2.2 三相可控整流电路 三相半波可控整流电路 三相桥式全控整流电路

  2. 2.2.1 三相半波可控整流电路 1.电阻负载 a =0 ——wt=30

  3. a=30——wt=60 负载电流处于连续和断续之间的临界状态

  4. a=60——wt=90 a角移相范围：0~150°

  5. 负载电压平均值： a≤30时，负载电流连续 a>30时，负载电流断续 负载电流平均值：Id=Ud/R SCR的电流、电压： • 平均值： IdT=Id/3 • 有效值： • 反向峰值电压： • 正向峰值电压：

  6. 2. 阻感负载 导通角：120º 移相范围：0～90º

  7. 2.2.2 三相桥式全控整流电路 共阴极组 共阳极组

  8. 1. 电阻负载

  9. a=60 ud出现为零的点。电流连续与断续的临界状态。

  10. a =90 SCR导通到线电压过零，关断

  11. 2．阻感负载

  12. a >60时

  13. 整流输出电压平均值： a≤60时，电阻与阻感负载电流连续 a>60时，电阻负载电流断续 整流输出电流平均值：Id=Ud/R SCR的电流、电压： • 平均值： IdT=Id/3 • 有效值：电阻负载电流连续与断续，阻感负载 • 反向峰值电压： • 正向峰值电压：

More Related