Cascading-type big-power high-frequency high-voltage ice melting excitation power circuit for full-control device unit

The invention discloses a cascading-type big-power high-frequency high-voltage ice melting excitation power circuit for a full-control device unit, and the power circuit comprises power units. The power units are connected in parallel, and the input ends of the power units are connected with a station transformer through a filtering inductor. The output ends of the power units are connected with the input end of a high-frequency boost transformer, and the output end of the high-frequency boost transformer is connected with an icing circuit. The circuit solves technical problems that the power-off loss of an extrahigh-voltage power transmission line is great because the DC ice melting and AC ice melting modes which are employed in the prior art and can be used for the power transmission lines at various voltage levels (500kV or less) need a line power transmission cutoff condition for ice melting. 本发明公开了种全控器件单元级联型大功率高频高压融冰激励电源电路，它包括功率单元，所述功率单元并联连接，功率单元输入端通过滤波电感与站用变连接；功率单元输出端与高频升压变压器输入端连接，高频升压变压器输出端接覆冰线路；本发明解决了