The Influence of UMAX Control Prohibiting AC Filter Input on DC Power After Line Step-Down Restart and Its Optimization Suggestions
摘要
This paper analyzes and studies a DC line transient fault, because the Umax function of DC station control is forbidden to be put into operation, the filter function is enabled without delay, and it is delayed for a long time after the function is enabled, resulting in a successful restart with step-down, but the DC power is not restored to the pre-fault level. Based on the above analysis results, the logic optimization measures of Umax forbidden function of AC filter are put forward.