| 摘要 |
PURPOSE:To ensure the storage energy within specified range while controlling the requested effective and reactive power by the improvement of the stability of a power system and the control of it, in a superconducting energy storage device. CONSTITUTION:For an A/D converter 3, DC current control circuits are provided for the signal bridge by GTO, the reactive power control circuit 11-1, and the effective power control circuit 11-2, and it adds a DC current control command value to an effective power control command. A circuit 12 operates the circulation ratio D of the A/D converter 3 and the angle alpha of lag in control, based on the command value from each control circuit, and outputs it to a gate pulse generator 9. Hereby, the system control stabilized by the superconducting energy storage device becomes feasible. |
