工频变压器原边与电容器串联工作原理及应用

Principle and Application of Power Frequency Transformer Primary Side Connected in Series with Capacitor

小功率工频变压器原边串联电容器后,原边施加电压大大降低,减少了原边绕组匝数,有条件增加绕组线径,大大降低了变压器的铜损,将变换效率η值提升15%。这种异变过程的实施,还附带出输出电压易于采样和控制,兼备无功功率补偿和宜于实施过流过压保护等优良品质。当加大电容器容量,将磁路激励到饱和状态,就会制作出简易磁饱和式稳压器,具备2.0%的源电压效应,输出功率也会大幅度增加。

The voltage against the primary side will be greatly lessened, following the series connection of the primary side of the smallpower power frequency transformer with capacitors, which, in turn, will decrease the winding number over the primary side, increase the line width of the windings with condition, significantly lower the copper loss of the transformer and increase the conversion efficiency q value by 15%. The implementation of the conversion will also result in the easy sampling and control of the output voltage, reactive power compensation and the easy implementation of over-current and over-voltage protection. When the capacitance of the capacitor is enlarged, the magnetic circuit is activated to the status of saturation, and then a simple saturation transformer is produced, which enjoys a 2.0% source voltage effect, and the output power will also b＇e increased on a large scale.