Time-varying electric power system self-adaption control method and device

Abstract

The invention relates to a time-varying electric power system self-adaption control method and a device. The device comprises a data acquisition module, a sub working condition input module, a control feedback response matrix generation module, a combination controller solution module and a result output module, wherein the data acquisition module is used for acquiring time-varying electric power system network structure parameters, generator frequency in the system and power angles; the sub working condition input module is used for acquiring different sub working condition information of the time-varying electric power system, and state transition probability density matrixes under different sub working conditions; the control feedback response matrix generation module is used for confirming control feedback response matrixes corresponding to different sub working conditions of the system; the combination controller solution module is used for confirming a system combination controller; the result output module is used for outputting the system combination controller. Through the application of the method and the device provided by the invention, the problem that a stuck fault set cannot be reasonably matched with the current working condition of the time-varying electric power system can be solved, and the impact caused on the time-varying electric power system when the controller is switched is avoided.

Description

Technical field [0001] The present invention relates to the technical field of power system stability analysis, in particular to the technical field of time-varying power system control. Background technique [0002] With the increasing complexity of power systems and the increasing difficulty of operation and control, time-varying factors have become one of the most critical factors affecting the stability of power systems. The study of adaptive control strategies for time-varying power systems has important practical significance. [0003] However, traditional control strategies are mainly based on the typical operating conditions of the system. One is to use the optimal control method in control theory to design the typical operating conditions of the system. However, due to the continuous changes of system parameters and structure, the typical operating conditions often cannot effectively describe the time-varying power system. A parameter perturbation method is used to establ...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to overcome the controller design problem that traditional control strategies in the prior art are not suitable for time-varying power systems, and propose a time-varying power system adaptive control method and device, the method and device It is an adaptive control method and device based on the continuous Markov time-varying power system model, especially to solve the problem that the fixed fault set cannot be reasonably matched with the current working condition, and effectively avoid the impact of the controller switch on the system

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