| abstract |
The invention discloses a 10kV series active voltage regulating system and a method, wherein the system comprises a high-voltage loop and a low-voltage loop; the low-voltage circuit comprises a main circuit unit and a low-voltage bypass unit; the main circuit unit comprises a step-down transformer, the primary side of the step-down transformer is connected with a 10kV voltage input end, the secondary side of the step-down transformer is connected with an input filtering unit, the input filtering unit is connected to a power conversion unit, the power conversion unit is connected to an output filtering unit, the output filtering unit is connected with a low-voltage bypass unit, and the low-voltage bypass unit is connected to the primary side of the step-up transformer. The system provided by the invention takes electricity from a 10kV line, supplies power to low-voltage parts such as a power conversion unit and a low-voltage bypass unit after being subjected to voltage reduction by a transformer, obtains voltage to be compensated by the power conversion unit, and is superposed with a 10kV power grid after being subjected to voltage increase by a step-up transformer, so that the voltage stability of a load end is ensured. |