Abstract
Digitalization in the power grid sector will become a strong support in the future for the upgrading of the power industry. And, multistation integration has become a leading project in the process. However, there are some hidden risks to its security with the boom of new technologies. Risk analysis and evolution of the multistation integration have an important role in safe operation. This paper analyzes the relationship among risk factors by using both the structural equation modeling (SEM) and the chi-squared automatic interaction detector (CHAID) approach, which is more objective than subjective judgment. The result shows the following: (1) The operational risks come from 10 risk-derived sources which therefore can be qualitatively divided into 2 risk categories with 11 risk indicators. (2) Concerning the structural analysis, the main risk source of multistation integration comes from endogenous risks. (3) In terms of procedural analysis, cultural risk, information risk, and accidental risk are the most critical external risks, while performance risk and location risk are the most critical internal ones. The results of models provide a reference for engineering management in digitalization in the power grid sector.
Highlights
It is crucial to carry out the research on the risk evaluation of the multistation integrated operation
Conclusions. e analysis based on the multistation integration project to evaluate operational risk is presented in this article. e scheme can provide the reference of risk aversion, which is not taken into account in the conventional method
The evaluation analysis of the multistation integrated operation risk can be divided into the structural analysis and the procedural analysis. e structural analysis mainly reflects the structural relationship between various risks, which can be used in theory to determine the transmission path and hierarchical relationship of risks. e procedural analysis mainly reflects the priority and focus of risks in the decision-making process
Summary
It is crucial to carry out the research on the risk evaluation of the multistation integrated operation. It can be ensured the safe, efficient, and reliable operation of the multistation integration by determining the importance of various risk indicators in different business scenarios. It can clarify the focus of decision-making on risk aversion through analysis by risk sources and risk indicators for the multistation integrated operation [6]. (3) With objectives of operating stability and maximizing benefits, the results of risk evaluation are presented to determine the importance of risk factors. The basis of the risk aversion strategy is determined
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