Novel 24-pulse TRU self-coupling energy feedback type half-bridge auxiliary circuit

The invention discloses a novel 24-pulse TRU self-coupling energy feedback type half-bridge auxiliary circuit and belongs to the technical field of electric energy conversion. The novel 24-pulse TRU self-coupling energy-feedback type half-bridge auxiliary circuit is composed of an auxiliary single-phase self-coupling transformer (TM), two voltage-sharing capacitors (C1 and C2) and an auxiliary rectifier bridge arm, wherein a center tap of the auxiliary self-coupling transformer is connected with midpoints P of the voltage-sharing capacitors, a secondary winding is connected with the midpoint Qof the auxiliary rectifier bridge arm, the self-coupling energy feedback type half-bridge auxiliary circuit is connected with the series 12-pulse TRU direct current side, an upper diode and a lower diode of the auxiliary rectifier bridge arm are alternately performed, the alternating-current square-wave voltage which is generated by a primary winding of the auxiliary single-phase self-coupling transformer and is 6 times