Multi-scheme comprehensive evaluation method for automatic low-frequency load reduction of large electric network

Abstract

The invention provides a multi-scheme comprehensive evaluation method for the automatic low-frequency load reduction of a large electric network, which realizes that the design of a plurality of schemes of low-frequency load reduction, the comprehensive evaluation and comparison and the mass simulated checking and calculation of a recommended scheme are all finished automatically by a program, realizes an integrative procedure, changes a traditional calculation mode that engineering staff carries out manual calculation, and enhances the efficiency and the accuracy of the establishment of the automatic low-frequency load reduction schemes greatly. The method has rationality, applicability and generalizability.

Description

technical field [0001] The invention belongs to the field of power system analysis and calculation, and in particular relates to a multi-scheme comprehensive evaluation method for automatic low-frequency load shedding of a large power grid. Background technique [0002] Facing the complex operating environment of the power grid and many setting factors of the automatic low-frequency load shedding scheme, it is very difficult to design an optimal automatic low-frequency load shedding scheme. In the evaluation process of the automatic low-frequency load shedding scheme in the past, the calculation of the frequency dynamic recovery characteristics was limited by the heavy workload and cumbersome process of manual calculation of the frequency dynamic recovery characteristics. The automatic low-frequency load shedding scheme is manually calculated, and even in some projects, the calculation of the frequency dynamic recovery characteristics is not performed, and the time-domain si...

AI Technical Summary

Problems solved by technology

[0002] Facing the complex operating environment of the power grid and many automatic low-frequency load shedding scheme setting factors, it is very difficult to design an optimal automatic low-frequency load shedding scheme

In the evaluation process of the automatic low-frequency load shedding scheme in the past, the calculation of the frequency dynamic recovery characteristics was limited by the heavy workload and cumbersome process of manual calculation of the frequency dynamic recovery characteristics. The automatic low-frequency load shedding scheme is manually calculated, and even in some projects, the calculation of the dynamic recovery characteristics of the frequency is not performed, and the time-domain simulation calculation is directly performed

In the time-domain simulation calculation and verification link of the automatic low-frequency load shedding scheme, the distributed computing method is not applied, resulting in only a small number of operating modes and a small number of faulty modes being checked

The above-mentioned program evaluation process leads to blindness and one-sidedness in the program formulation and screening process, and cannot guarantee the optimality and accuracy of the recommended program

Images