Electric power system dynamic safety assessment method based on hybrid integration model

Abstract

An electric power system dynamic safety assessment method based on a hybrid integration model comprises the following steps: 1, constructing corresponding dynamic safety indexes, and establishing an initial sample set containing a plurality of electric power system operation variables and the corresponding safety indexes; 2, constructing an efficient sample set; 3, obtaining a dynamic safety evaluation model capable of accurately evaluating the operation condition of the power system; and step 4, based on real-time monitoring data of a synchronous vector measurement device, selecting key characteristic variable data and inputting the key characteristic variable data into a DSA model to realize online DSA of the power system. The invention is to provide an electric power system dynamic safety assessment method which is good in generalization ability, and the method has the advantages of being rapid and accurate in assessment, is beneficial for power grid workers to take effective prevention and control measures in time, and can effectively avoid loss caused by faults of the power system.

Description

technical field [0001] The invention belongs to the field of dynamic security assessment of electric power systems, and in particular relates to a method for dynamic security assessment of electric power systems based on hybrid integration models. Background technique [0002] With the rapid development of our country's society and economy, the power system industry has also undergone major changes, and people's dependence on the power system is becoming stronger and stronger. With the rapid development of the power system, the access of large-scale renewable energy and the wide-area interconnection of the power system, the security and stability of the power system have become particularly prominent. The importance of system security control and dynamic security assessment cannot be ignored. How to use the most effective control decision in a wide area and in a short time has become a key issue in improving the dynamic stability of power systems. Timeliness and accuracy ar...

AI Technical Summary

Problems solved by technology

Its disadvantages are low learning ability for big data, insufficient generalization ability, and limited applicability

[0006] To sum up, the current methods for power system dynamic security assessment are difficult to have excellent performance in terms of generalization ability, evaluation accuracy and evaluation speed. there is a problem

Images