| 摘要 |
One-leg matrix converter for supply of two-phase electromotor by constant frequency from single-phase network, consists of the AC power supply (4), the single-leg matrix converter (3) with two bidirectional switches (S1), (S2) and its center tap (5), the increasing the autotransformer (9) with outlets (11), (12) and its center tap (10), the two-phase electric motor (7) with a main winding (H) and an auxiliary winding (P). Main winding (H) of the two-phase electric motor (7) is connected to the center tap (10) and the outlet (12) of the increasing autotransformer (9). Auxiliary winding (P) is connected between the center tap (10) of the increasing autotransformer (9) and the center tap (5) of the single-leg matrix converter (3), which is connected between the outlet (11) and the outlet (12) of the increasing autotransformer (9). The control electrodes (G1), (G2) of the bidirectional switches (S1), (S2) are connected to the control unit (13). The single-leg matrix converter (3) provides the phase shift of the voltage and current of the auxiliary coil (L) with respect to the voltage and current of the main winding (H). |
