The mechanism of time-sharing and multi-target control for power system with multiple HVDC links was analyzed.Based on the proposed control scheme,the accelerating torque is decreased by multiple HVDC links power increment before the slip of monitored generator approaches zero,the unbalanced power is distributed reasonably after it,and the power oscillation is damped through proper HVDC modulation under HVDC block.The digital simulation of “San-Hua” power grid showed that the proposed control contributes to improving the first-swing stability and damping the subsequent power oscillation after the fault.
