| 摘要 |
PROBLEM TO BE SOLVED: To obtain a control method in which the control responsivity of a DC-side power control system without lowering the control accuracy of a system interconnected AC-DC conversion apparatus. SOLUTION: An automatic current regulator(ACR) 13 which has a PI characteristic for an AC-side current control system and a factor computing unit 16 which computes a prescribed particularity constant Kp are installed at a control system in a system interconnection-type AC-DC conversion apparatus. A circuit is constituted in such a way that a DC-side power control system regulator is formed as an automatic power regulator(APR) which has an I characteristic(integral characteristic) and that a value in which a DC-side power command value is multiplied by the constant Kp is used as a current command value for the AC-side current control system so as to be applied directly to the ACR 13. Then, the responsivity of the DC-side power control system as a whole is improved via the quick responsivity of the AC-side current control system. |
