关键词: 新型电力系统, 脆弱性指标架构, MSDMAHP方法, 指标量化, TNNGE算法, 指标约简

Abstract: The new power system under the “double carbon” strategy incorporates a variety of complex power electronics, and these complex devices bring many vulnerable factors, which makes the potential risks of the power system greatly increased. In order to comprehensively analyze the vulnerability of new power system information and business across space, a new vulnerability index system of new power system is constructed. An analytic hierarchy process method based on Moody’s diagram (MSDMAHP) is proposed to quantitatively analyze the established indicator system and establish the indicator weights; the number of indicators is large and the importance of indicators is different, an indicator simplification method based on the nearest neighbor graph embedding algorithm (TNNGE)  is proposed  for the needs of subsequent risk assessment and other work. The experimental results show that the established new power system vulnerability index system can effectively assess the vulnerability of the power system; the reconstruction error of the proposed TNNGE method is small and can effectively reduce the dimensionality of the index data, and the reduced dimension data can basically contain the index information of the original dimension.

Key words: new power systems, vulnerability metrics architecture, MSDMAHP method, metrics quantification, TNNGE algorithm, metrics simplification