Simulation collocation method for oscillation disconnection device of power system

Abstract

The invention relates to the field of power system stability research, in particular to a simulation collocation method for an oscillation disconnection device of a power system. The method comprises the steps: A. building a simulation data model; B. building a research failure set; C. performing simulation calculation of power grid stability after failure, obtaining out-of-step characteristics of a power grid, determining an oscillation center, and summarizing oscillation center moving laws; D. performing simulation calculation of acting characteristics of the oscillation disconnection device after the failure, and judging acting correctness of the oscillation disconnection device; E. putting forward a preliminary collocation scheme of the oscillation disconnection device; F. studying coordinating relations among stability control measures; and G. putting forward the final collocation scheme of the oscillation disconnection device by combination with the step C, the step D, the step E and the step F. The simulation collocation method has the advantages of being strong in maneuverability, comprehensive in considered factors and reasonable in scheme, and has high practical value and good market prospect.

Description

Technical field [0001] The invention relates to the field of power system stability research, in particular to a simulation configuration method of a power system oscillating splitting device. Background technique [0002] During the operation of the power system, the destruction of the power angle stability between generators will lead to out-of-step oscillations. Long-term out-of-step oscillations will bring serious consequences to the power system, including aggravating the degree of damage to stability, causing power outages for important users, and even damage to power equipment Therefore, measures must be taken to eliminate the out-of-synchronization state as soon as possible. The oscillating splitting device can effectively split the out-of-step section to eliminate the out-of-step. The following principles should be followed when configuring the oscillating splitting device in the power grid: (1) The splitting must be planned, that is, the splitting should be performed a...

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Problems solved by technology

In this case, although the out-of-synchronization section can be decomposed, the out-of-synchronization oscillation lasts for a long time; (3) the out-of-synchronization oscillation center of some lines is within the operating range of the device, while the out-of-synchronization oscillation center of the remaining channels is not within the operating range of the device, and the remaining channel lines The upper decoupling device will not operate, and the out-of-step oscillation between the grids on both sides continues; (4) The oscillation center is not within the operating range of the device, and the out-of-step oscillation between the grids on both sides continues

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