| 摘要 |
The stabilizer and device for voltage three-phase receiver regulation relates to electric power industry and electrical engineering and can be used: for change of three-phase voltage levels according to electrical technology of the receiver or for voltage stabilization of the receiver. The receiver comprises: source and receiver clamps, a three-legged magnetic core, windings, switches and a control unit. The device differs that all its windings are made as ladder-type ones. The ladder-type winding consists of single-link windings. In the ladder-type winding each single-link winding there placed on a separate rod of the magnetic core. The two and three-link windings are of practical importance. The two-link winding consists of two single-link windings connected by similar connections and placed on separate cores. The three-link winding consists of three single-link windings. In the three-link winding the single-link winding there are coils twice more, than in each of two others. The single-link windings entering to three-link windings are placed on various core leg. The ladder-type windings include three typical blocks of switching. Each type of the shift unit comprises switches and several ladder-type windings, the part of them being series connected. The claimed device reduce currents and zero-sequence voltages of basic and higher harmonics providing for satisfactory source and receiver energy quality and lowers heating and losses in the network feeding transformer. The device can be used in general service circuits for stabilization and voltage regulation both symmetric and asymmetrical one and nonlinear receiver. |
