The current prevailing anti-override-trip mechanisms for distributed smart grids are mainly target position-guided protection with limited protection range,resulting in the continuous decline of emergency response frequency.For this reason,this paper proposes a gene atlas relationship-based anti-override-trip protective method.First according to the current anti-override protection requirements,the abnormal characteristics of the power grid are identified,and multiple monitoring nodes are deployed.Then the multi-level method is adopted to break the limitation of the protection range,and the multi-level protective mechanism of the station area is formulated.Consequently the gene atlas-based anti-override pro-tection model is established,and continuous tracking and monitoring is adopted to achieve anti-override handling.The pro-posed protective method achieved emergency response frequency higher than 12 in the 3-stage test within the selected H power grid anti-override protection area.This indicates the proposed gene atlas-based method has satisfactory sensitivity,faster early warning response,and significantly improved selectivity.
关键词
基因图谱/图谱关系/分布智能型电网/电网防越级/保护方法/定向控制
Key words
gene atlas/atlas relationship/distributed smart grid/grid anti-override-trip/protective method/directed control
维普
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