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(1)系统方框图
![](data/attachment/album/202206/08/165535m13gmp9id9idjx4m.png)
主功率回路
![](data/attachment/album/202206/08/165614grerzb9znerju7og.png)
控制单元
![](data/attachment/album/202206/08/165641mgnd6r65uknl1zs5.png)
![](data/attachment/album/202206/08/165652at8hhnkov8vvzohs.png)
(2)主回路拓扑
两象限拓扑
![](data/attachment/album/202206/08/165754uqll4rla6rddzz44.png)
![](data/attachment/album/202206/08/165811gwklwnwrwlaravbf.png)
四象限拓扑
![](data/attachment/album/202206/08/165837eddpsssc3xqq2zsp.png)
![](data/attachment/album/202206/08/165847h9yo6t7j99jr3r6i.png)
(3)主回路相关电压电流波形
①--整流侧的相关波形
![](data/attachment/album/202206/08/165937c7f2lflb0o12c300.png)
![](data/attachment/album/202206/08/170032dttmqesywfws3wwq.png)
②--母线的相关电压和电流波形
![](data/attachment/album/202206/08/170113u7a5koccapacm5ca.png)
③--输出端的电压电流波形
![](data/attachment/album/202206/08/170139b8y68y5h9tg625xs.png)
④--缓冲回路的相关波形
![](data/attachment/album/202206/08/170204eewg553z2es90ij0.png)
⑤--制动电路(由制动电阻和制动IGBT组成)
![](data/attachment/album/202206/08/170245qv1r0p01pdcec0p4.png)
(4)主回路关键元器件
①--整流桥
整流桥的不同封装结构
![](data/attachment/album/202206/08/170416r6rc1u281acu6rz4.png)
耐压值的选型
![](data/attachment/album/202206/08/170435supnly444vlhuulk.png)
电流(过流)值的选型
![](data/attachment/album/202206/08/170508z1y16e2gklze6g16.png)
②--缓冲回路(缓冲电阻和接触器等)
![](data/attachment/album/202206/08/170554uio3m99oi1aoaozj.png)
缓冲电路的类型
![](data/attachment/album/202206/08/170612nubbd5bzcade4mnc.png)
缓冲电阻
![](data/attachment/album/202206/08/170629q5371vtg1kizzm9n.png)
![](data/attachment/album/202206/08/170640boi0i5a5i6dez3id.png)
缓冲接触器
![](data/attachment/album/202206/08/170656lkni2pe728e3z4ng.png)
③--电抗器
![](data/attachment/album/202206/08/170732eg99ssfkkb9hfhsi.png)
电网处的交流电抗器
![](data/attachment/album/202206/08/170800j8u9yx7o7vycsubv.png)
母线处的直流电抗器
![](data/attachment/album/202206/08/170839nc970xfsd4rpy047.png)
输出电抗器
![](data/attachment/album/202206/08/170857rqzyppr5522n95jd.png)
直流电抗器和交流(输入)电抗器的差异
![](data/attachment/album/202206/08/170926qwj3f5ffftvu5ww5.png)
④--母线电容
![](data/attachment/album/202206/08/170948d4394jrxyvd9gdty.png)
母线电容的说明
![](data/attachment/album/202206/08/171004eyy4kxkkxxv988yw.png)
母线电容的选取
![](data/attachment/album/202206/08/171026bz56xcp7p247xn27.png)
母线电容的安装设计
![](data/attachment/album/202206/08/171048ilz6bt33w7tawt3l.png)
⑤--IGBT
IGBT外观及内部实物图
![](data/attachment/album/202206/08/171222n74mkqx7krkq7q4s.png)
不同封装外观
![](data/attachment/album/202206/08/171242lbuwqwcu1bxd74uu.png)
不同拓扑图
![](data/attachment/album/202206/08/171258hlp5qxwk3mlrwf6f.png)
IGBT模块的电流、电压等级可选范围
![](data/attachment/album/202206/08/171328vs53kfo49f2i9fgk.png)
IGBT芯片技术迭代
![](data/attachment/album/202206/08/171350kp85oitggzpdra8p.png)
选型参考
![](data/attachment/album/202206/08/171414lngxd8sg99neaxdn.png)
⑤--主回路电流简要估算方法
![](data/attachment/album/202206/08/171444r60bbbofuvovf0sa.png)
(5)驱动部分电路
驱动硬件电路组成部分
![](data/attachment/album/202206/08/171525r0f7i7z5ix85y06n.png)
![](data/attachment/album/202206/08/171543frh0r1mq0y8o178r.png)
![](data/attachment/album/202206/08/171556zomubnopi5itpi2v.png)
开关电源
![](data/attachment/album/202206/08/171727jeefg3kwooo3nt3e.png)
驱动电路
![](data/attachment/album/202206/08/171740py6bdge7b8rpe58b.png)
检测电路
![](data/attachment/album/202206/08/171758o6itt4mai6iiknk9.png)
![](data/attachment/album/202206/08/171811amnmhhkayzs6sudm.png)
保护电路
![](data/attachment/album/202206/08/171832x8pna19sggta7kgz.png)
![](data/attachment/album/202206/08/171845yi55pjinp5a9x5jl.png)
接口电路
![](data/attachment/album/202206/08/171858cfk2pkizxs5zfzck.png)
(6)控制部分电路
![](data/attachment/album/202206/08/171918au9ffl71lzfws0q9.png)
![](data/attachment/album/202206/08/171930wjjv2lqmoqbesyqv.png)
实物图
![](data/attachment/album/202206/08/171950dokrff0oo9yo5loe.png)
![](data/attachment/album/202206/08/171958tfnjf8trtwfunkzn.png)
变频器的基本原理.part2.rar
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