|
| 摘要: |
| 介绍分析了18脉波移相整流变压器在设计制造中所采用的抑制过电压和浪涌电流的特殊方法。在设计理论方面,通过加大变压器的励磁阻抗Zm和内线圈(高压线圈)对地电容C来达到限制操作过电压的目的;通过降低合闸线圈高度,或增加合闸线圈的匝数和直径来达到降低磁密、降低励磁涌流的目的。在制造工艺方面,高压线圈采用多层圆筒双屏蔽式结构或者插入电容式绕组结构来限制操作过电压,并给出了几种具体的线圈结构型式。针对上述抑制过电压和励磁涌流原则设计的6kV、300kW高压变频器用ZPSG-530/6移相整流变压器,已投入高压变频装置中运行,效果明显。 |
| 关键词: 高压变频器,移相变压器,操作过电压,励磁涌流 |
| DOI： |
| 分类号:TM422 TM86 |
| 基金项目: |
|
| Over-voltage suppression of shift-phase rectification transformer |
|
CHEN Xiang-ling HUANG Xi-you
|
| Abstract: |
| The special ways adopted in the design and manufacture of 18-pulse shift-phase transformer to suppress the over-voltage and surge current are introduced.In design theory,the operational over-voltage could be limited by increasing the transformer exciting resistance(Zm) and the capacitance C between interior winding(high-voltage winding) and ground;and the magnetic flux density and exciting surge current could be lowered by reducing the height or increasing the turns and diameter of switching winding.In manufacturing techniques,the operational over-voltage could be limited by adopting the winding structure of dual-shield multi-layer cylinder or inserted capacitor.Some types of winding structure are presented.ZPSG-530 /6 shift-phase transformer(6 kV,300 kW) is designed based on above rules and applied in high-voltage converter with excellent effectiveness. |
| Key words: high-voltage converter,shift-phase transformer,operational over-voltage,exciting surge current |
