Provincial dispatching and local dispatching-integrated joint risk assessment method

Abstract

The invention relates to a provincial dispatching and local dispatching-integrated joint risk assessment method. The method includes the following steps that: information such as a provincial dispatching and local dispatching integration model and measurement is read in; a preconceived fault set is generated automatically; provincial dispatching carries out preconceived fault scanning on a whole grid; local dispatching load transfer plans are optimized; the provincial dispatching carries out risk assessment on the load-transferred grid; preconceived fault load switching is carried out based on sensitivity; and a provincial dispatching and local dispatching-integrated risk assessment result is outputted, and early warning is carried out. With the method of the invention adopted, provincial dispatching and local dispatching joint risk assessment is realized, and the comprehensiveness of risk assessment is realized. According to the method, the method is realized based on a provincial and local integration platform, links such as provincial and local boundary model analysis and splicing are eliminated, the consistency of provincial dispatching risk calculation basic data and local dispatching risk calculation basic data can be ensured; and a sensitivity-based algorithm is adopted, so that the result of risk assessment can more accord with the actual situation of the power grid, so that dispatchers can accurately locate faults and timely take corresponding control measures, and therefore, the safe operation level of the power grid can be improved.

Description

technical field [0001] The invention relates to the technical field of power system risk assessment, in particular to a joint risk assessment method for provincial and local integration. Background technique [0002] The purpose of power system risk assessment is to find out the weak links of the power grid in a timely and accurate manner through accurate power grid security analysis, and then take corresponding prevention and control measures to reduce the occurrence of power outages and enhance the power grid's ability to perceive operational risks. However, in the existing technology, the risk assessment is mostly run independently by the provincial risk assessment system and the prefecture-level risk assessment system, resulting in weak information interaction between the two systems, and the problem of incomplete and inaccurate information being read. The provincial power grid maintains the grid structure of 220kV and above, while ignoring the load transfer capacity and...

AI Technical Summary

Problems solved by technology

However, in the existing technology, the risk assessment is mostly run independently by the provincial risk assessment system and the prefecture-level risk assessment system, resulting in weak information interaction between the two systems, and the problem of incomplete and inaccurate information read.

The provincial power grid maintains the grid structure of 220kV and above, while ignoring the load transfer capacity and the actual situation of the grid structure of the prefecture-level grid; The results of risk assessment cannot reflect the actual situation of power grid operation, which affects the timely and correct handling of risks by relevant operators

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