| 摘要 |
PURPOSE: To suppress the wide fluctuation of a DC voltage by accurately detecting the electric energy flowing to a DC side through a power converter and precisely processing the electric energy in a normal state or even when such a disturbance occurs that an unbalanced voltage is generated on the AC side of the power converter or an unbalanced current flows to the AC side of the converter. CONSTITUTION: A controller for a power converter in which two converters 1 and 2 which convert a direct current or alternating current into an alternating current or direct current is provided with a current detecting means 5 which detects the AC-side current of the converter 1, voltage detecting means 9 which detects a pulsative voltage on the AC side of the converter 1, power detecting means 10 which detects the electric power flowing through the converter 1 from the current and voltage detected by the detecting means 5 and 9, and means which corrects commands to the converters 1 and 2 so that the same electric power as the detected electric power flowing through the converter 1 can flow through the converter 2. |
